Merge branch 'work'

.babelrc

@@ -6,13 +6,9 @@
           "last 2 versions",
           "> 4%",
           "ie 11",
-          "safari 8",
+          "safari 8"
-          "android 4.4"
         ]
       }
-    }],
-    ["minify", {
-      "mergeVars": false
     }]
   ]
 }

.eslintignore

@@ -2,7 +2,8 @@
 out/**/*
 
 # libraries
-js/lib/*
+js/lib/chibi.js
+js/lib/polyfills.js
 
 # php generated file
 js/lang.js

.eslintrc

@@ -148,7 +148,7 @@
     "object-property-newline": ["error", { "allowMultiplePropertiesPerLine": true }],
     "one-var": ["error", { "initialized": "never" }],
     "operator-linebreak": ["error", "after", { "overrides": { "?": "before", ":": "before" } }],
-    "padded-blocks": ["error", { "blocks": "never", "switches": "never", "classes": "never" }],
+    "padded-blocks": ["off", { "blocks": "never", "switches": "never", "classes": "never" }],
     "prefer-promise-reject-errors": "error",
     "quotes": ["error", "single", { "avoidEscape": true, "allowTemplateLiterals": true }],
     "rest-spread-spacing": ["error", "never"],

_build_common.sh

@@ -1,3 +1,7 @@
 #!/bin/bash
 
 export FRONT_END_HASH=$(git rev-parse --short HEAD)
+
+if [ -z "$ESP_LANG" ]; then
+	export ESP_LANG=en
+fi

_build_css.sh

@@ -10,4 +10,4 @@ else
 fi
 
 mkdir -p out/css
-npm run sass -- --output-style ${stylearg} sass/app.scss "out/css/app.$FRONT_END_HASH.css"
+npm run sass -- --output-style ${stylearg} sass/app.scss "out/css/app.$FRONT_END_HASH-$ESP_LANG.css"

_build_html.sh

@@ -3,4 +3,4 @@ source "_build_common.sh"
 
 echo 'Building HTML...'
 
-php ./compile_html.php
+php ./compile_html.php $@

_build_js.sh

@@ -2,8 +2,6 @@
 source "_build_common.sh"
 
 mkdir -p out/js
-echo 'Generating lang.js...'
-php ./dump_js_lang.php
 
 echo 'Processing JS...'
 npm run webpack

_debug_replacements.php

@@ -93,4 +93,6 @@ return [
 	'theme' => 0,
 	'pwlock' => 0,
 	'access_name' => 'espterm',
+
+	'allow_decopt_12' => 0,
 ];

_pages.php

@@ -41,7 +41,7 @@ pg('help',  'cfg page-help',  'help', '/help');
 pg('about', 'cfg page-about', 'about', '/about');
 pg('term',  'term',           '', '/', 'title.term');
 
-pg('reset_screen',  'api',     '', '/system/cls', 'title.term');
+pg('reset_screen',  'api',     '', '/api/v1/clear', 'title.term');
 
 pg('index',  'api',           '', '/', '');
 

base.php

@@ -35,6 +35,7 @@ if (!file_exists(__DIR__ . '/_env.php')) {
 define('JS_WEB_ROOT', $root);
 
 
+define('ESP_PROD', (bool)getenv('ESP_PROD'));
 define('ESP_DEMO', (bool)getenv('ESP_DEMO'));
 if (ESP_DEMO) {
 	define('DEMO_APS', <<<APS
@@ -58,9 +59,11 @@ APS
 );
 }
 
-define('LOCALE', isset($_GET['locale']) ? $_GET['locale'] : 'en');
+define('LOCALE', isset($_GET['locale']) ? $_GET['locale'] : (getenv('ESP_LANG') ?: 'en'));
 
 $_messages = require(__DIR__ . '/lang/' . LOCALE . '.php');
+$_messages_fallback = require(__DIR__ . '/lang/en.php');
+$_messages_common = require(__DIR__ . '/lang/common.php');
 $_pages = require(__DIR__ . '/_pages.php');
 
 define('APP_NAME', 'ESPTerm');
@@ -96,12 +99,26 @@ function je($s)
 
 function tr($key)
 {
-	global $_messages;
+	global $_messages, $_messages_fallback, $_messages_common;
-	if (isset($_messages[$key])) return $_messages[$key];
+
+	if (isset($_messages[$key])) {
+		$str = $_messages[$key];
+	}
+	else if (isset($_messages_fallback[$key])) {
+		$str = $_messages_fallback[$key];
+	}
+	else if (isset($_messages_common[$key])) {
+		$str = $_messages_common[$key];
+	}
 	else{
 		ob_end_clean();
 		die('??' . $key . '??');
 	}
+
+	// allow tildes in translation
+	$str = preg_replace('/(?<=[^ \\\\])~(?=[^ ])/', '&nbsp;', $str);
+	$str = str_replace('\~', '~', $str);
+	return $str;
 }
 
 /** Like eval, but allows <?php and ?> */

build.sh

@@ -7,8 +7,8 @@ source "_build_common.sh"
 rm -fr out/*
 
 ./_build_css.sh
-./_build_js.sh
+./_build_js.sh $@
-./_build_html.sh
+./_build_html.sh $@
 ./_build_assets.sh
 
 echo 'ESPTerm front-end ready'

compile_html.php

@@ -55,9 +55,24 @@ foreach($_pages as $_k => $p) {
 		// making it not a very big improvement at the expense of ugly html.
 		//	$s = process_html($s);
 		ob_clean();
-	}                                 // clean up
+	}
-	$of = $dest . $_k . ((in_array($_k, $no_tpl_files)||ESP_DEMO) ? '.html' : '.tpl');
+
-	file_put_contents($of, $s);                   // write to a file
+	$outputPath = $dest . $_k . ((in_array($_k, $no_tpl_files)||ESP_DEMO) ? '.html' : '.tpl');
+
+	if (file_exists($outputPath)) unlink($outputPath);
+	if (ESP_PROD) {
+		$tmpfile = tempnam('/tmp', 'espterm').'.html';
+		file_put_contents($tmpfile, $s);
+		// using https://github.com/tdewolff/minify
+		system('minify --html-keep-default-attrvals '.
+			'-o '.escapeshellarg($outputPath).' '.
+			''.escapeshellarg($tmpfile), $rv);
+
+		// fallback if minify is not installed
+		if (!file_exists($outputPath)) file_put_contents($outputPath, $s);
+	} else {
+		file_put_contents($outputPath, $s);
+	}
 }
 
 ob_flush();

dump_js_lang.php

@@ -1,22 +0,0 @@
-<?php
-
-/* This script is run on demand to generate JS version of tr() */
-
-require_once __DIR__ . '/base.php';
-
-$selected = [
-	'wifi.connected_ip_is',
-	'wifi.not_conn',
-	'wifi.enter_passwd',
-];
-
-$out = [];
-foreach ($selected as $key) {
-	$out[$key] = $_messages[$key];
-}
-
-file_put_contents(__DIR__. '/js/lang.js',
-	"// Generated from PHP locale file\n" .
-	'let _tr = ' . json_encode($out, JSON_PRETTY_PRINT|JSON_UNESCAPED_UNICODE) . ";\n\n" .
-	"module.exports = function tr (key) { return _tr[key] || '?' + key + '?' }\n"
-);

js/appcommon.js

@@ -61,7 +61,7 @@ $.ready(function () {
   }, 1000)
 
   // flipping number boxes with the mouse wheel
-  $('input[type=number]').on('mousewheel', function (e) {
+  $('input[type=number]').on('wheel', function (e) {
     let $this = $(this)
     let val = +$this.val()
     if (isNaN(val)) val = 1
@@ -69,14 +69,14 @@ $.ready(function () {
     const step = +($this.attr('step') || 1)
     const min = +$this.attr('min')
     const max = +$this.attr('max')
-    if (e.wheelDelta > 0) {
+    if (e.deltaY > 0) {
       val += step
     } else {
       val -= step
     }
 
-    if (!Number.isFinite(min)) val = Math.max(val, +min)
+    if (Number.isFinite(min)) val = Math.max(val, +min)
-    if (!Number.isFinite(max)) val = Math.min(val, +max)
+    if (Number.isFinite(max)) val = Math.min(val, +max)
     $this.val(val)
 
     if ('createEvent' in document) {

js/index.js

@@ -14,3 +14,5 @@ window.$ = $
 window.qs = qs
 
 window.themes = require('./term/themes')
+
+window.TermConf = require('./term_conf')

js/lang.js

@@ -1,8 +1,5 @@
-// Generated from PHP locale file
+let data = require('locale-data')
-let _tr = {
-    "wifi.connected_ip_is": "Connected, IP is ",
-    "wifi.not_conn": "Not connected.",
-    "wifi.enter_passwd": "Enter password for \":ssid:\""
-};
 
-module.exports = function tr (key) { return _tr[key] || '?' + key + '?' }
+module.exports = function localize (key) {
+  return data[key] || `?${key}?`
+}

js/lib/color_utils.js

@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2010 Tim Baumann
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// NOTE:
+// Extracted from ColorTriangle and
+// Converted to ES6 by MightyPork (2017)
+
+/*******************
+ * Color conversion *
+ *******************/
+
+const M = Math
+const TAU = 2 * M.PI
+
+exports.hue2rgb = function (v1, v2, h) {
+  if (h < 0) h += 1
+  if (h > 1) h -= 1
+
+  if ((6 * h) < 1) return v1 + (v2 - v1) * 6 * h
+  if ((2 * h) < 1) return v2
+  if ((3 * h) < 2) return v1 + (v2 - v1) * ((2 / 3) - h) * 6
+  return v1
+}
+
+exports.hsl2rgb = function (h, s, l) {
+  h /= TAU
+  let r, g, b
+
+  if (s === 0) {
+    r = g = b = l
+  } else {
+    let var_1, var_2
+
+    if (l < 0.5) var_2 = l * (1 + s)
+    else var_2 = (l + s) - (s * l)
+
+    var_1 = 2 * l - var_2
+
+    r = exports.hue2rgb(var_1, var_2, h + (1 / 3))
+    g = exports.hue2rgb(var_1, var_2, h)
+    b = exports.hue2rgb(var_1, var_2, h - (1 / 3))
+  }
+  return [r, g, b]
+}
+
+exports.rgb2hsl = function (r, g, b) {
+  const min = M.min(r, g, b)
+  const max = M.max(r, g, b)
+  const d = max - min // delta
+
+  let h, s, l
+
+  l = (max + min) / 2
+
+  if (d === 0) {
+    // gray
+    h = s = 0 // HSL results from 0 to 1
+  } else {
+    // chroma
+    if (l < 0.5) s = d / (max + min)
+    else s = d / (2 - max - min)
+
+    const d_r = (((max - r) / 6) + (d / 2)) / d
+    const d_g = (((max - g) / 6) + (d / 2)) / d
+    const d_b = (((max - b) / 6) + (d / 2)) / d // deltas
+
+    if (r === max) h = d_b - d_g
+    else if (g === max) h = (1 / 3) + d_r - d_b
+    else if (b === max) h = (2 / 3) + d_g - d_r
+
+    if (h < 0) h += 1
+    else if (h > 1) h -= 1
+  }
+  h *= TAU
+  return [h, s, l]
+}
+
+exports.hex2rgb = function (hex) {
+  const groups = hex.match(/^#([\da-f]{3,6})$/i)
+  if (groups) {
+    hex = groups[1]
+    const bytes = hex.length / 3
+    const max = (16 ** bytes) - 1
+    return [0, 1, 2].map(x => parseInt(hex.slice(x * bytes, (x + 1) * bytes), 16) / max)
+  }
+  return [0, 0, 0]
+}
+
+function pad (n) {
+  return `00${n}`.substr(-2)
+}
+
+exports.rgb255ToHex = function (r, g, b) {
+  return '#' + [r, g, b].map(x => pad(x.toString(16))).join('')
+}
+
+exports.rgb2hex = function (r, g, b) {
+  return '#' + [r, g, b].map(x => pad(Math.round(x * 255).toString(16))).join('')
+}

js/lib/colortriangle.js

@@ -0,0 +1,572 @@
+/*
+ * Copyright (c) 2010 Tim Baumann
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// NOTE: Converted to ES6 by MightyPork (2017)
+// Modified for ESPTerm
+
+const EventEmitter = require('events')
+const {
+  rgb2hex,
+  hex2rgb,
+  hsl2rgb,
+  rgb2hsl
+} = require('./color_utils')
+
+const win = window
+const doc = document
+const M = Math
+const TAU = 2 * M.PI
+
+function times (i, fn) {
+  for (let j = 0; j < i; j++) {
+    fn(j)
+  }
+}
+
+function each (obj, fn) {
+  if (obj.length) {
+    times(obj.length, function (i) {
+      fn(obj[i], i)
+    })
+  } else {
+    for (let key in obj) {
+      if (obj.hasOwnProperty(key)) {
+        fn(obj[key], key)
+      }
+    }
+  }
+}
+
+module.exports = class ColorTriangle extends EventEmitter {
+  /****************
+   * ColorTriangle *
+   ****************/
+
+  // Constructor function:
+  constructor (color, options) {
+    super()
+
+    this.options = {
+      size: 150,
+      padding: 8,
+      triangleSize: 0.8,
+      wheelPointerColor1: '#444',
+      wheelPointerColor2: '#eee',
+      trianglePointerSize: 16,
+      // wheelPointerSize: 16,
+      trianglePointerColor1: '#eee',
+      trianglePointerColor2: '#444',
+      background: 'transparent'
+    }
+
+    this.pixelRatio = window.devicePixelRatio
+
+    this.setOptions(options)
+    this.calculateProperties()
+
+    this.createContainer()
+    this.createTriangle()
+    this.createWheel()
+    this.createWheelPointer()
+    this.createTrianglePointer()
+    this.attachEvents()
+
+    color = color || '#f00'
+    if (typeof color == 'string') {
+      this.setHEX(color)
+    }
+  }
+
+  calculateProperties () {
+    let opts = this.options
+
+    this.padding = opts.padding
+    this.innerSize = opts.size - opts.padding * 2
+    this.triangleSize = opts.triangleSize * this.innerSize
+    this.wheelThickness = (this.innerSize - this.triangleSize) / 2
+    this.wheelPointerSize = opts.wheelPointerSize || this.wheelThickness
+
+    this.wheelRadius = (this.innerSize) / 2
+    this.triangleRadius = (this.triangleSize) / 2
+    this.triangleSideLength = M.sqrt(3) * this.triangleRadius
+  }
+
+  calculatePositions () {
+    const r = this.triangleRadius
+    const hue = this.hue
+    const third = TAU / 3
+    const s = this.saturation
+    const l = this.lightness
+
+    // Colored point
+    const hx = this.hx = M.cos(hue) * r
+    const hy = this.hy = -M.sin(hue) * r
+    // Black point
+    const sx = this.sx = M.cos(hue - third) * r
+    const sy = this.sy = -M.sin(hue - third) * r
+    // White point
+    const vx = this.vx = M.cos(hue + third) * r
+    const vy = this.vy = -M.sin(hue + third) * r
+    // Current point
+    const mx = (sx + vx) / 2
+    const my = (sy + vy) / 2
+    const a = (1 - 2 * M.abs(l - 0.5)) * s
+    this.x = sx + (vx - sx) * l + (hx - mx) * a
+    this.y = sy + (vy - sy) * l + (hy - my) * a
+  }
+
+  createContainer () {
+    let c = this.container = doc.createElement('div')
+    c.className = 'color-triangle'
+
+    c.style.display = 'block'
+    c.style.padding = `${this.padding}px`
+    c.style.position = 'relative'
+    c.style.boxShadow = '0 1px 10px black'
+    c.style.borderRadius = '5px'
+    c.style.width = c.style.height = `${this.innerSize + 2 * this.padding}px`
+    c.style.background = this.options.background
+  }
+
+  createWheel () {
+    let c = this.wheel = doc.createElement('canvas')
+    c.width = c.height = this.innerSize * this.pixelRatio
+    c.style.width = c.style.height = `${this.innerSize}px`
+    c.style.position = 'absolute'
+    c.style.margin = c.style.padding = '0'
+    c.style.left = c.style.top = `${this.padding}px`
+
+    this.drawWheel(c.getContext('2d'))
+    this.container.appendChild(c)
+  }
+
+  drawWheel (ctx) {
+    let s, i
+
+    ctx.save()
+    ctx.setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0)
+    ctx.translate(this.wheelRadius, this.wheelRadius)
+    s = this.wheelRadius - this.triangleRadius
+    // Draw a circle for every color
+    for (i = 0; i < 360; i++) {
+      ctx.rotate(TAU / -360) // rotate one degree
+      ctx.beginPath()
+      ctx.fillStyle = 'hsl(' + i + ', 100%, 50%)'
+      ctx.arc(this.wheelRadius - (s / 2), 0, s / 2, 0, TAU, true)
+      ctx.fill()
+    }
+    ctx.restore()
+  }
+
+  createTriangle () {
+    let c = this.triangle = doc.createElement('canvas')
+
+    c.width = c.height = this.innerSize * this.pixelRatio
+    c.style.width = c.style.height = `${this.innerSize}px`
+    c.style.position = 'absolute'
+    c.style.margin = c.style.padding = '0'
+    c.style.left = c.style.top = this.padding + 'px'
+
+    this.triangleCtx = c.getContext('2d')
+
+    this.container.appendChild(c)
+  }
+
+  drawTriangle () {
+    const hx = this.hx
+    const hy = this.hy
+    const sx = this.sx
+    const sy = this.sy
+    const vx = this.vx
+    const vy = this.vy
+    const size = this.innerSize
+
+    let ctx = this.triangleCtx
+
+    // clear
+    ctx.clearRect(0, 0, size * this.pixelRatio, size * this.pixelRatio)
+
+    ctx.save()
+    ctx.setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0)
+    ctx.translate(this.wheelRadius, this.wheelRadius)
+
+    // make a triangle
+    ctx.beginPath()
+    ctx.moveTo(hx, hy)
+    ctx.lineTo(sx, sy)
+    ctx.lineTo(vx, vy)
+    ctx.closePath()
+    ctx.clip()
+
+    ctx.fillStyle = '#000'
+    ctx.fillRect(-this.wheelRadius, -this.wheelRadius, size, size)
+    // => black triangle
+
+    // create gradient from hsl(hue, 1, 1) to transparent
+    let grad0 = ctx.createLinearGradient(hx, hy, (sx + vx) / 2, (sy + vy) / 2)
+    const hsla = 'hsla(' + M.round(this.hue * (360 / TAU)) + ', 100%, 50%, '
+    grad0.addColorStop(0, hsla + '1)')
+    grad0.addColorStop(1, hsla + '0)')
+    ctx.fillStyle = grad0
+    ctx.fillRect(-this.wheelRadius, -this.wheelRadius, size, size)
+    // => gradient: one side of the triangle is black, the opponent angle is $color
+
+    // create color gradient from white to transparent
+    let grad1 = ctx.createLinearGradient(vx, vy, (hx + sx) / 2, (hy + sy) / 2)
+    grad1.addColorStop(0, '#fff')
+    grad1.addColorStop(1, 'rgba(255, 255, 255, 0)')
+    ctx.globalCompositeOperation = 'lighter'
+    ctx.fillStyle = grad1
+    ctx.fillRect(-this.wheelRadius, -this.wheelRadius, size, size)
+    // => white angle
+
+    ctx.restore()
+  }
+
+  // The two pointers
+  createWheelPointer () {
+    let c = this.wheelPointer = doc.createElement('canvas')
+    const size = this.wheelPointerSize
+    c.width = c.height = size * this.pixelRatio
+    c.style.width = c.style.height = `${size}px`
+    c.style.position = 'absolute'
+    c.style.margin = c.style.padding = '0'
+    this.drawPointer(c.getContext('2d'), size / 2, this.options.wheelPointerColor1, this.options.wheelPointerColor2)
+    this.container.appendChild(c)
+  }
+
+  moveWheelPointer () {
+    const r = this.wheelPointerSize / 2
+    const s = this.wheelPointer.style
+    s.top = this.padding + this.wheelRadius - M.sin(this.hue) * (this.triangleRadius + this.wheelThickness / 2) - r + 'px'
+    s.left = this.padding + this.wheelRadius + M.cos(this.hue) * (this.triangleRadius + this.wheelThickness / 2) - r + 'px'
+  }
+
+  createTrianglePointer () { // create pointer in the triangle
+    let c = this.trianglePointer = doc.createElement('canvas')
+    const size = this.options.trianglePointerSize
+
+    c.width = c.height = size * this.pixelRatio
+    c.style.width = c.style.height = `${size}px`
+    c.style.position = 'absolute'
+    c.style.margin = c.style.padding = '0'
+    this.drawPointer(c.getContext('2d'), size / 2, this.options.trianglePointerColor1, this.options.trianglePointerColor2)
+    this.container.appendChild(c)
+  }
+
+  moveTrianglePointer (x, y) {
+    const s = this.trianglePointer.style
+    const r = this.options.trianglePointerSize / 2
+    s.top = (this.y + this.wheelRadius + this.padding - r) + 'px'
+    s.left = (this.x + this.wheelRadius + this.padding - r) + 'px'
+  }
+
+  drawPointer (ctx, r, color1, color2) {
+    ctx.setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0)
+    ctx.fillStyle = color2
+    ctx.beginPath()
+    ctx.arc(r, r, r, 0, TAU, true)
+    ctx.fill() // => black circle
+    ctx.fillStyle = color1
+    ctx.beginPath()
+    ctx.arc(r, r, r - 2, 0, TAU, true)
+    ctx.fill() // => white circle with 1px black border
+    ctx.fillStyle = color2
+    ctx.beginPath()
+    ctx.arc(r, r, r / 4 + 2, 0, TAU, true)
+    ctx.fill() // => black circle with big white border and a small black border
+    ctx.globalCompositeOperation = 'destination-out'
+    ctx.beginPath()
+    ctx.arc(r, r, r / 4, 0, TAU, true)
+    ctx.fill() // => transparent center
+  }
+
+  // The Element and the DOM
+  inject (parent) {
+    parent.appendChild(this.container)
+  }
+
+  getRelativeCoordinates (evt) {
+    let elem = this.triangle
+    let rect = elem.getBoundingClientRect()
+
+    return {
+      x: evt.clientX - rect.x,
+      y: evt.clientY - rect.y
+    }
+  }
+
+  dispose () {
+    let parent = this.container.parentNode
+    if (parent) {
+      parent.removeChild(this.container)
+    }
+  }
+
+  getElement () {
+    return this.container
+  }
+
+  // Color accessors
+  getCSS () {
+    const h = Math.round(this.hue * (360 / TAU))
+    const s = Math.round(this.saturation * 100)
+    const l = Math.round(this.lightness * 100)
+
+    return `hsl(${h}, ${s}%, ${l}%)`
+  }
+
+  getHEX () {
+    return rgb2hex(...this.getRGB())
+  }
+
+  setHEX (hex) {
+    this.setRGB(...hex2rgb(hex))
+  }
+
+  getRGB () {
+    return hsl2rgb(...this.getHSL())
+  }
+
+  setRGB (r, g, b) {
+    this.setHSL(...rgb2hsl(r, g, b))
+  }
+
+  getHSL () {
+    return [this.hue, this.saturation, this.lightness]
+  }
+
+  setHSL (h, s, l) {
+    this.hue = h
+    this.saturation = s
+    this.lightness = l
+
+    this.initColor()
+  }
+
+  initColor () {
+    this.calculatePositions()
+    this.moveWheelPointer()
+    this.drawTriangle()
+    this.moveTrianglePointer()
+  }
+
+  // Mouse event handling
+  attachEvents () {
+    this.down = null
+
+    let mousedown = (evt) => {
+      evt.stopPropagation()
+      evt.preventDefault()
+
+      doc.body.addEventListener('mousemove', mousemove, false)
+      doc.body.addEventListener('mouseup', mouseup, false)
+
+      let xy = this.getRelativeCoordinates(evt)
+      this.map(xy.x, xy.y)
+    }
+
+    let mousemove = (evt) => {
+      let xy = this.getRelativeCoordinates(evt)
+      this.move(xy.x, xy.y)
+    }
+
+    let mouseup = (evt) => {
+      if (this.down) {
+        this.down = null
+        this.emit('dragend')
+      }
+      doc.body.removeEventListener('mousemove', mousemove, false)
+      doc.body.removeEventListener('mouseup', mouseup, false)
+    }
+
+    this.container.addEventListener('mousedown', mousedown, false)
+    this.container.addEventListener('mousemove', mousemove, false)
+  }
+
+  map (x, y) {
+    let x0 = x
+    let y0 = y
+    x -= this.wheelRadius
+    y -= this.wheelRadius
+
+    const r = M.sqrt(x * x + y * y) // Pythagoras
+    if (r > this.triangleRadius && r < this.wheelRadius) {
+      // Wheel
+      this.down = 'wheel'
+      this.emit('dragstart')
+      this.move(x0, y0)
+    } else if (r < this.triangleRadius) {
+      // Inner circle
+      this.down = 'triangle'
+      this.emit('dragstart')
+      this.move(x0, y0)
+    }
+  }
+
+  move (x, y) {
+    if (!this.down) {
+      return
+    }
+
+    x -= this.wheelRadius
+    y -= this.wheelRadius
+
+    let rad = M.atan2(-y, x)
+    if (rad < 0) {
+      rad += TAU
+    }
+
+    if (this.down === 'wheel') {
+      this.hue = rad
+      this.initColor()
+      this.emit('drag')
+    } else if (this.down === 'triangle') {
+      // get radius and max radius
+      let rad0 = (rad + TAU - this.hue) % TAU
+      let rad1 = rad0 % (TAU / 3) - (TAU / 6)
+      let a = 0.5 * this.triangleRadius
+      let b = M.tan(rad1) * a
+      let r = M.sqrt(x * x + y * y) // Pythagoras
+      let maxR = M.sqrt(a * a + b * b) // Pythagoras
+
+      if (r > maxR) {
+        const dx = M.tan(rad1) * r
+        let rad2 = M.atan(dx / maxR)
+        if (rad2 > TAU / 6) {
+          rad2 = TAU / 6
+        } else if (rad2 < -TAU / 6) {
+          rad2 = -TAU / 6
+        }
+        rad += rad2 - rad1
+
+        rad0 = (rad + TAU - this.hue) % TAU
+        rad1 = rad0 % (TAU / 3) - (TAU / 6)
+        b = M.tan(rad1) * a
+        r = maxR = M.sqrt(a * a + b * b) // Pythagoras
+      }
+
+      x = M.round(M.cos(rad) * r)
+      y = M.round(-M.sin(rad) * r)
+
+      const l = this.lightness = ((M.sin(rad0) * r) / this.triangleSideLength) + 0.5
+
+      const widthShare = 1 - (M.abs(l - 0.5) * 2)
+      let s = this.saturation = (((M.cos(rad0) * r) + (this.triangleRadius / 2)) / (1.5 * this.triangleRadius)) / widthShare
+      s = M.max(0, s) // cannot be lower than 0
+      s = M.min(1, s) // cannot be greater than 1
+
+      this.lightness = l
+      this.saturation = s
+
+      this.x = x
+      this.y = y
+      this.moveTrianglePointer()
+
+      this.emit('drag')
+    }
+  }
+
+  /***************
+   * Init helpers *
+   ***************/
+
+  static initInput (input, options) {
+    options = options || {}
+
+    let ct
+    let openColorTriangle = function () {
+      let hex = input.value
+      if (options.parseColor) hex = options.parseColor(hex)
+      if (!ct) {
+        options.size = options.size || input.offsetWidth
+        options.background = win.getComputedStyle(input, null).backgroundColor
+        options.margin = options.margin || 10
+        options.event = options.event || 'dragend'
+
+        ct = new ColorTriangle(hex, options)
+        ct.on(options.event, () => {
+          const hex = ct.getHEX()
+          input.value = options.uppercase ? hex.toUpperCase() : hex
+          fireChangeEvent()
+        })
+      } else {
+        ct.setHEX(hex)
+      }
+
+      let top = input.offsetTop
+      if (win.innerHeight - input.getBoundingClientRect().top > input.offsetHeight + options.margin + options.size) {
+        top += input.offsetHeight + options.margin // below
+      } else {
+        top -= options.margin + options.size // above
+      }
+
+      let el = ct.getElement()
+      el.style.position = 'absolute'
+      el.style.left = input.offsetLeft + 'px'
+      el.style.top = top + 'px'
+      el.style.zIndex = '1338' // above everything
+
+      ct.inject(input.parentNode)
+    }
+
+    let closeColorTriangle = () => {
+      if (ct) {
+        ct.dispose()
+      }
+    }
+
+    let fireChangeEvent = () => {
+      let evt = doc.createEvent('HTMLEvents')
+      evt.initEvent('input', true, false) // bubbles = true, cancable = false
+      input.dispatchEvent(evt) // fire event
+    }
+
+    input.addEventListener('focus', openColorTriangle, false)
+    input.addEventListener('blur', closeColorTriangle, false)
+    input.addEventListener('keyup', () => {
+      const val = input.value
+      if (val.match(/^#((?:[0-9A-Fa-f]{3})|(?:[0-9A-Fa-f]{6}))$/)) {
+        openColorTriangle()
+        fireChangeEvent()
+      } else {
+        closeColorTriangle()
+      }
+    }, false)
+  }
+
+  /*******************
+   * Helper functions *
+   *******************/
+
+  setOptions (opts) {
+    opts = opts || {}
+    let dflt = this.options
+    let options = this.options = {}
+
+    each(dflt, function (val, key) {
+      options[key] = (opts.hasOwnProperty(key))
+        ? opts[key]
+        : val
+    })
+  }
+}

js/term/buttons.js

@@ -0,0 +1,57 @@
+const { qs } = require('../utils')
+
+module.exports = function initButtons (input) {
+  let container = qs('#action-buttons')
+
+  // button labels
+  let labels = []
+
+  // button elements
+  let buttons = []
+
+  // add a button element
+  let pushButton = function pushButton () {
+    let button = document.createElement('button')
+    button.classList.add('action-button')
+    button.setAttribute('data-n', buttons.length)
+    buttons.push(button)
+    container.appendChild(button)
+
+    button.addEventListener('click', e => {
+      // might as well use the attribute ¯\_(ツ)_/¯
+      let index = +button.getAttribute('data-n')
+      input.sendButton(index)
+    })
+
+    return button
+  }
+
+  // remove a button element
+  let popButton = function popButton () {
+    let button = buttons.pop()
+    button.parentNode.removeChild(button)
+  }
+
+  // sync with DOM
+  let update = function updateButtons () {
+    if (labels.length > buttons.length) {
+      for (let i = buttons.length; i < labels.length; i++) {
+        pushButton()
+      }
+    } else if (buttons.length > labels.length) {
+      for (let i = labels.length; i <= buttons.length; i++) {
+        popButton()
+      }
+    }
+
+    for (let i = 0; i < labels.length; i++) {
+      let label = labels[i].trim()
+      let button = buttons[i]
+      button.textContent = label || '\u00a0' // label or nbsp
+      if (!label) button.classList.add('inactive')
+      else button.classList.remove('inactive')
+    }
+  }
+
+  return { update, labels }
+}

js/term/connection.js

@@ -3,6 +3,9 @@ const $ = require('../lib/chibi')
 let demo
 try { demo = require('./demo') } catch (err) {}
 
+const RECONN_DELAY = 2000
+const HEARTBEAT_TIME = 3000
+
 /** Handle connections */
 module.exports = class TermConnection extends EventEmitter {
   constructor (screen) {
@@ -17,6 +20,18 @@ module.exports = class TermConnection extends EventEmitter {
     this.reconnTimeout = null
     this.forceClosing = false
 
+    try {
+      this.blobReader = new FileReader()
+      this.blobReader.onload = (evt) => {
+        this.onDecodedWSMessage(this.blobReader.result)
+      }
+      this.blobReader.onerror = (evt) => {
+        console.error(evt)
+      }
+    } catch (e) {
+      this.blobReader = null
+    }
+
     this.pageShown = false
 
     this.disconnectTimeout = null
@@ -59,15 +74,15 @@ module.exports = class TermConnection extends EventEmitter {
     }
 
     clearTimeout(this.reconnTimeout)
-    this.reconnTimeout = setTimeout(() => this.init(), 2000)
+    this.reconnTimeout = setTimeout(() => this.init(), RECONN_DELAY)
 
     this.emit('disconnect', evt.code)
   }
 
-  onWSMessage (evt) {
+  onDecodedWSMessage (str) {
-    try {
+    switch (str.charAt(0)) {
-      switch (evt.data.charAt(0)) {
       case '.':
+        console.log(str)
         // heartbeat, no-op message
         break
 
@@ -86,7 +101,7 @@ module.exports = class TermConnection extends EventEmitter {
         break
 
       default:
-          this.screen.load(evt.data)
+        this.screen.load(str)
         if (!this.pageShown) {
           window.showPage()
           this.pageShown = true
@@ -94,8 +109,23 @@ module.exports = class TermConnection extends EventEmitter {
         break
     }
     this.heartbeat()
-    } catch (e) {
+  }
-      console.error(e)
+
+  onWSMessage (evt) {
+    if (typeof evt.data === 'string') this.onDecodedWSMessage(evt.data)
+    else {
+      if (!this.blobReader) {
+        console.error('No FileReader!')
+        return
+      }
+
+      if (this.blobReader.readyState !== 1) {
+        this.blobReader.readAsText(evt.data)
+      } else {
+        setTimeout(() => {
+          this.onWSMessage(evt)
+        }, 1)
+      }
     }
   }
 
@@ -166,19 +196,13 @@ module.exports = class TermConnection extends EventEmitter {
 
   heartbeat () {
     clearTimeout(this.heartbeatTimeout)
-    this.heartbeatTimeout = setTimeout(() => this.onHeartbeatFail(), 2500)
+    this.heartbeatTimeout = setTimeout(() => this.onHeartbeatFail(), HEARTBEAT_TIME)
   }
 
-  onHeartbeatFail () {
+  sendPing () {
-    this.closeSocket()
-    this.emit('silence')
-    console.error('Heartbeat lost, probing server...')
-    clearInterval(this.pingInterval)
-
-    this.pingInterval = setInterval(() => {
     console.log('> ping')
     this.emit('ping')
-      $.get('http://' + window._root + '/system/ping', (resp, status) => {
+    $.get('http://' + window._root + '/api/v1/ping', (resp, status) => {
       if (status === 200) {
         clearInterval(this.pingInterval)
         console.info('Server ready, opening socket…')
@@ -190,6 +214,16 @@ module.exports = class TermConnection extends EventEmitter {
       timeout: 100,
       loader: false // we have loader on-screen
     })
-    }, 1000)
+  }
+
+  onHeartbeatFail () {
+    this.closeSocket()
+    this.emit('silence')
+    console.error('Heartbeat lost, probing server...')
+    clearInterval(this.pingInterval)
+    this.pingInterval = setInterval(() => { this.sendPing() }, 1000)
+
+    // first ping, if this gets through, it'll will reduce delay
+    setTimeout(() => { this.sendPing() }, 200)
   }
 }

js/term/debug_screen.js

@@ -4,17 +4,32 @@ module.exports = function attachDebugScreen (screen) {
   const debugCanvas = mk('canvas')
   const ctx = debugCanvas.getContext('2d')
 
-  debugCanvas.style.position = 'absolute'
+  debugCanvas.classList.add('debug-canvas')
-  // hackity hack should probably set this in CSS
+
-  debugCanvas.style.top = '6px'
+  let mouseHoverCell = null
-  debugCanvas.style.left = '6px'
+  let updateToolbar
-  debugCanvas.style.pointerEvents = 'none'
+
+  let onMouseMove = e => {
+    mouseHoverCell = screen.screenToGrid(e.offsetX, e.offsetY)
+    startDrawing()
+    updateToolbar()
+  }
+  let onMouseOut = () => (mouseHoverCell = null)
 
   let addCanvas = function () {
-    if (!debugCanvas.parentNode) screen.canvas.parentNode.appendChild(debugCanvas)
+    if (!debugCanvas.parentNode) {
+      screen.canvas.parentNode.appendChild(debugCanvas)
+      screen.canvas.addEventListener('mousemove', onMouseMove)
+      screen.canvas.addEventListener('mouseout', onMouseOut)
+    }
   }
   let removeCanvas = function () {
-    if (debugCanvas.parentNode) debugCanvas.parentNode.removeChild(debugCanvas)
+    if (debugCanvas.parentNode) {
+      debugCanvas.parentNode.removeChild(debugCanvas)
+      screen.canvas.removeEventListener('mousemove', onMouseMove)
+      screen.canvas.removeEventListener('mouseout', onMouseOut)
+      onMouseOut()
+    }
   }
   let updateCanvasSize = function () {
     let { width, height, devicePixelRatio } = screen.window
@@ -25,9 +40,13 @@ module.exports = function attachDebugScreen (screen) {
     debugCanvas.style.height = `${height * cellSize.height}px`
   }
 
+  let drawInfo = mk('div')
+  drawInfo.classList.add('draw-info')
+
   let startTime, endTime, lastReason
   let cells = new Map()
   let clippedRects = []
+  let updateFrames = []
 
   let startDrawing
 
@@ -39,7 +58,7 @@ module.exports = function attachDebugScreen (screen) {
     },
     drawEnd () {
       endTime = Date.now()
-      console.log(`Draw: ${lastReason} (${(endTime - startTime)} ms) with fancy graphics: ${screen.window.graphics}`)
+      console.log(drawInfo.textContent = `Draw: ${lastReason} (${(endTime - startTime)} ms) with graphics=${screen.window.graphics}`)
       startDrawing()
     },
     setCell (cell, flags) {
@@ -47,6 +66,11 @@ module.exports = function attachDebugScreen (screen) {
     },
     clipRect (...args) {
       clippedRects.push(args)
+    },
+    pushFrame (frame) {
+      frame.push(Date.now())
+      updateFrames.push(frame)
+      startDrawing()
     }
   }
 
@@ -73,10 +97,16 @@ module.exports = function attachDebugScreen (screen) {
   }
 
   let isDrawing = false
+  let lastDrawTime = 0
+  let t = 0
 
   let drawLoop = function () {
     if (isDrawing) window.requestAnimationFrame(drawLoop)
 
+    let dt = (Date.now() - lastDrawTime) / 1000
+    lastDrawTime = Date.now()
+    t += dt
+
     let { devicePixelRatio, width, height } = screen.window
     let { width: cellWidth, height: cellHeight } = screen.getCellSize()
     let screenLength = width * height
@@ -131,7 +161,42 @@ module.exports = function attachDebugScreen (screen) {
       ctx.fill()
     }
 
-    if (activeCells === 0) {
+    let didDrawUpdateFrames = false
+    if (updateFrames.length) {
+      let framesToDelete = []
+      for (let frame of updateFrames) {
+        let time = frame[4]
+        let elapsed = Date.now() - time
+        if (elapsed > 1000) framesToDelete.push(frame)
+        else {
+          didDrawUpdateFrames = true
+          ctx.globalAlpha = 1 - elapsed / 1000
+          ctx.strokeStyle = '#ff0'
+          ctx.lineWidth = 2
+          ctx.strokeRect(frame[0] * cellWidth, frame[1] * cellHeight, frame[2] * cellWidth, frame[3] * cellHeight)
+        }
+      }
+      for (let frame of framesToDelete) {
+        updateFrames.splice(updateFrames.indexOf(frame), 1)
+      }
+    }
+
+    if (mouseHoverCell) {
+      ctx.save()
+      ctx.globalAlpha = 1
+      ctx.lineWidth = 1 + 0.5 * Math.sin(t * 10)
+      ctx.strokeStyle = '#fff'
+      ctx.lineJoin = 'round'
+      ctx.setLineDash([2, 2])
+      ctx.lineDashOffset = t * 10
+      ctx.strokeRect(mouseHoverCell[0] * cellWidth, mouseHoverCell[1] * cellHeight, cellWidth, cellHeight)
+      ctx.lineDashOffset += 2
+      ctx.strokeStyle = '#000'
+      ctx.strokeRect(mouseHoverCell[0] * cellWidth, mouseHoverCell[1] * cellHeight, cellWidth, cellHeight)
+      ctx.restore()
+    }
+
+    if (activeCells === 0 && !mouseHoverCell && !didDrawUpdateFrames) {
       isDrawing = false
       removeCanvas()
     }
@@ -142,6 +207,7 @@ module.exports = function attachDebugScreen (screen) {
     addCanvas()
     updateCanvasSize()
     isDrawing = true
+    lastDrawTime = Date.now()
     drawLoop()
   }
 
@@ -149,6 +215,33 @@ module.exports = function attachDebugScreen (screen) {
   const toolbar = mk('div')
   toolbar.classList.add('debug-toolbar')
   let toolbarAttached = false
+  const dataDisplay = mk('div')
+  dataDisplay.classList.add('data-display')
+  toolbar.appendChild(dataDisplay)
+  const internalDisplay = mk('div')
+  internalDisplay.classList.add('internal-display')
+  toolbar.appendChild(internalDisplay)
+  toolbar.appendChild(drawInfo)
+  const buttons = mk('div')
+  buttons.classList.add('toolbar-buttons')
+  toolbar.appendChild(buttons)
+
+  {
+    const redraw = mk('button')
+    redraw.textContent = 'Redraw'
+    redraw.addEventListener('click', e => {
+      screen.renderer.resetDrawn()
+      screen.renderer.draw('debug-redraw')
+    })
+    buttons.appendChild(redraw)
+
+    const fancyGraphics = mk('button')
+    fancyGraphics.textContent = 'Toggle Graphics'
+    fancyGraphics.addEventListener('click', e => {
+      screen.window.graphics = +!screen.window.graphics
+    })
+    buttons.appendChild(fancyGraphics)
+  }
 
   const attachToolbar = function () {
     screen.canvas.parentNode.appendChild(toolbar)
@@ -161,20 +254,128 @@ module.exports = function attachDebugScreen (screen) {
     if (debug !== toolbarAttached) {
       toolbarAttached = debug
       if (debug) attachToolbar()
-      else detachToolbar()
+      else {
+        detachToolbar()
+        removeCanvas()
+      }
     }
   })
 
-  screen.on('draw', () => {
+  const displayCellAttrs = attrs => {
-    if (!toolbarAttached) return
+    let result = attrs.toString(16)
-    let cursorCell = screen.cursor.y * screen.window.width + screen.cursor.x
+    if (attrs & 1 || attrs & 2) {
-    let cellFG = screen.screenFG[cursorCell]
+      result += ':has('
-    let cellBG = screen.screenBG[cursorCell]
+      if (attrs & 1) result += 'fg'
-    let cellCode = (screen.screen[cursorCell] || '').codePointAt(0)
+      if (attrs & 2) result += (attrs & 1 ? ',' : '') + 'bg'
-    let cellAttrs = screen.screenAttrs[cursorCell]
+      result += ')'
+    }
+    let attributes = []
+    if (attrs & (1 << 2)) attributes.push('\\[bold]bold\\()')
+    if (attrs & (1 << 3)) attributes.push('\\[underline]underln\\()')
+    if (attrs & (1 << 4)) attributes.push('\\[invert]invert\\()')
+    if (attrs & (1 << 5)) attributes.push('blink')
+    if (attrs & (1 << 6)) attributes.push('\\[italic]italic\\()')
+    if (attrs & (1 << 7)) attributes.push('\\[strike]strike\\()')
+    if (attrs & (1 << 8)) attributes.push('\\[overline]overln\\()')
+    if (attrs & (1 << 9)) attributes.push('\\[faint]faint\\()')
+    if (attrs & (1 << 10)) attributes.push('fraktur')
+    if (attributes.length) result += ':' + attributes.join()
+    return result.trim()
+  }
+
+  const formatColor = color => color < 256 ? color : `#${`000000${(color - 256).toString(16)}`.substr(-6)}`
+  const getCellData = cell => {
+    if (cell < 0 || cell > screen.screen.length) return '(-)'
+    let cellAttrs = screen.renderer.drawnScreenAttrs[cell] | 0
+    let cellFG = screen.renderer.drawnScreenFG[cell] | 0
+    let cellBG = screen.renderer.drawnScreenBG[cell] | 0
+    let fgText = formatColor(cellFG)
+    let bgText = formatColor(cellBG)
+    fgText += `\\[color=${screen.renderer.getColor(cellFG).replace(/ /g, '')}]●\\[]`
+    bgText += `\\[color=${screen.renderer.getColor(cellBG).replace(/ /g, '')}]●\\[]`
+    let cellCode = (screen.renderer.drawnScreen[cell] || '').codePointAt(0) | 0
     let hexcode = cellCode.toString(16).toUpperCase()
     if (hexcode.length < 4) hexcode = `0000${hexcode}`.substr(-4)
     hexcode = `U+${hexcode}`
-    toolbar.textContent = `Cursor cell (${cursorCell}): ${hexcode} FG: ${cellFG} BG: ${cellBG} Attrs: ${cellAttrs.toString(2)}`
+    let x = cell % screen.window.width
+    let y = Math.floor(cell / screen.window.width)
+    return `((${y},${x})=${cell}:\\[bold]${hexcode}\\[]:F${fgText}:B${bgText}:A(${displayCellAttrs(cellAttrs)}))`
+  }
+
+  const setFormattedText = (node, text) => {
+    node.innerHTML = ''
+
+    let match
+    let attrs = {}
+
+    let pushSpan = content => {
+      let span = mk('span')
+      node.appendChild(span)
+      span.textContent = content
+      for (let key in attrs) span[key] = attrs[key]
+    }
+
+    while ((match = text.match(/\\\[(.*?)\]/))) {
+      if (match.index > 0) pushSpan(text.substr(0, match.index))
+
+      attrs = { style: '' }
+      let data = match[1].split(' ')
+      for (let attr of data) {
+        if (!attr) continue
+        let key, value
+        if (attr.indexOf('=') > -1) {
+          key = attr.substr(0, attr.indexOf('='))
+          value = attr.substr(attr.indexOf('=') + 1)
+        } else {
+          key = attr
+          value = true
+        }
+
+        if (key === 'color') console.log(value)
+
+        if (key === 'bold') attrs.style += 'font-weight:bold;'
+        if (key === 'italic') attrs.style += 'font-style:italic;'
+        if (key === 'underline') attrs.style += 'text-decoration:underline;'
+        if (key === 'invert') attrs.style += 'background:#000;filter:invert(1);'
+        if (key === 'strike') attrs.style += 'text-decoration:line-through;'
+        if (key === 'overline') attrs.style += 'text-decoration:overline;'
+        if (key === 'faint') attrs.style += 'opacity:0.5;'
+        else if (key === 'color') attrs.style += `color:${value};`
+        else attrs[key] = value
+      }
+
+      text = text.substr(match.index + match[0].length)
+    }
+
+    if (text) pushSpan(text)
+  }
+
+  let internalInfo = {}
+
+  updateToolbar = () => {
+    if (!toolbarAttached) return
+    let text = `C((${screen.cursor.y},${screen.cursor.x}),hang:${screen.cursor.hanging},vis:${screen.cursor.visible})`
+    if (mouseHoverCell) {
+      text += ' m' + getCellData(mouseHoverCell[1] * screen.window.width + mouseHoverCell[0])
+    }
+    setFormattedText(dataDisplay, text)
+
+    if ('flags' in internalInfo) {
+      // we got ourselves some internal data
+      let text = ' '
+      text += ` flags:${internalInfo.flags.toString(2)}`
+      text += ` curAttrs:${internalInfo.cursorAttrs.toString(2)}`
+      text += ` Region:${internalInfo.regionStart}->${internalInfo.regionEnd}`
+      text += ` Charset:${internalInfo.charsetGx} (0:${internalInfo.charsetG0},1:${internalInfo.charsetG1})`
+      text += ` Heap:${internalInfo.freeHeap}`
+      text += ` Clients:${internalInfo.clientCount}`
+      setFormattedText(internalDisplay, text)
+    }
+  }
+
+  screen.on('draw', updateToolbar)
+  screen.on('internal', data => {
+    internalInfo = data
+    updateToolbar()
   })
 }

js/term/demo.js

@@ -2,6 +2,8 @@ const EventEmitter = require('events')
 const { parse2B } = require('../utils')
 const { themes } = require('./themes')
 
+const encodeAsCodePoint = i => String.fromCodePoint(i + (i >= 0xD800 ? 0x801 : 1))
+
 class ANSIParser {
   constructor (handler) {
     this.reset()
@@ -36,19 +38,21 @@ class ANSIParser {
         this.handler('insert-blanks', numOr1)
       } else if (type === 'q') this.handler('set-cursor-style', numOr1)
       else if (type === 'm') {
-        if (!numbers.length || numbers[0] === 0) {
+        if (!numbers.length) {
           this.handler('reset-style')
           return
         }
-        let type = numbers[0]
+        let type
-        if (type === 1) this.handler('add-attrs', 1) // bold
+        while ((type = numbers.shift())) {
-        else if (type === 2) this.handler('add-attrs', 1 << 1) // faint
+          if (type === 0) this.handler('reset-style')
-        else if (type === 3) this.handler('add-attrs', 1 << 2) // italic
+          else if (type === 1) this.handler('add-attrs', 1 << 2) // bold
+          else if (type === 2) this.handler('add-attrs', 1 << 9) // faint
+          else if (type === 3) this.handler('add-attrs', 1 << 6) // italic
           else if (type === 4) this.handler('add-attrs', 1 << 3) // underline
-        else if (type === 5 || type === 6) this.handler('add-attrs', 1 << 4) // blink
+          else if (type === 5 || type === 6) this.handler('add-attrs', 1 << 5) // blink
-        else if (type === 7) this.handler('add-attrs', -1) // invert
+          else if (type === 7) this.handler('add-attrs', 1 << 4) // invert
-        else if (type === 9) this.handler('add-attrs', 1 << 6) // strike
+          else if (type === 9) this.handler('add-attrs', 1 << 7) // strike
-        else if (type === 20) this.handler('add-attrs', 1 << 5) // fraktur
+          else if (type === 20) this.handler('add-attrs', 1 << 10) // fraktur
           else if (type >= 30 && type <= 37) this.handler('set-color-fg', type % 10)
           else if (type >= 40 && type <= 47) this.handler('set-color-bg', type % 10)
           else if (type === 39) this.handler('reset-color-fg')
@@ -56,12 +60,21 @@ class ANSIParser {
           else if (type >= 90 && type <= 98) this.handler('set-color-fg', (type % 10) + 8)
           else if (type >= 100 && type <= 108) this.handler('set-color-bg', (type % 10) + 8)
           else if (type === 38 || type === 48) {
-          if (numbers[1] === 5) {
+            let mode = numbers.shift()
-            let color = (numbers[2] | 0) & 0xFF
+            if (mode === 2) {
+              let r = numbers.shift()
+              let g = numbers.shift()
+              let b = numbers.shift()
+              let color = (r << 16 | g << 8 | b) + 256
+              if (type === 38) this.handler('set-color-fg', color)
+              if (type === 48) this.handler('set-color-bg', color)
+            } else if (mode === 5) {
+              let color = (numbers.shift() | 0) & 0xFF
               if (type === 38) this.handler('set-color-fg', color)
               if (type === 48) this.handler('set-color-bg', color)
             }
           }
+        }
       } else if (type === 'h' || type === 'l') {
         if (content === '?25') {
           if (type === 'h') this.handler('show-cursor')
@@ -101,8 +114,7 @@ class ANSIParser {
     if (!this.joinChunks) this.reset()
   }
 }
-const TERM_DEFAULT_STYLE = 0
+const TERM_DEFAULT_STYLE = [0, 0, 0]
-const TERM_MIN_DRAW_DELAY = 10
 
 let getRainbowColor = t => {
   let r = Math.floor(Math.sin(t) * 2.5 + 2.5)
@@ -117,33 +129,34 @@ class ScrollingTerminal {
     this.height = 25
     this.termScreen = screen
     this.parser = new ANSIParser((...args) => this.handleParsed(...args))
+    this.buttonLabels = []
 
     this.reset()
 
     this._lastLoad = Date.now()
-    this.termScreen.load(this.serialize())
+    this.loadTimer()
 
     window.showPage()
   }
   reset () {
-    this.style = TERM_DEFAULT_STYLE
+    this.style = TERM_DEFAULT_STYLE.slice()
     this.cursor = { x: 0, y: 0, style: 1, visible: true }
     this.trackMouse = false
-    this.theme = -1
+    this.theme = 0
-    this.rainbow = false
+    this.rainbow = this.superRainbow = false
     this.parser.reset()
     this.clear()
   }
   clear () {
     this.screen = []
     for (let i = 0; i < this.width * this.height; i++) {
-      this.screen.push([' ', this.style])
+      this.screen.push([' ', this.style.slice()])
     }
   }
   scroll () {
     this.screen.splice(0, this.width)
     for (let i = 0; i < this.width; i++) {
-      this.screen.push([' ', TERM_DEFAULT_STYLE])
+      this.screen.push([' ', TERM_DEFAULT_STYLE.slice()])
     }
     this.cursor.y--
   }
@@ -152,7 +165,7 @@ class ScrollingTerminal {
     if (this.cursor.y >= this.height) this.scroll()
   }
   writeChar (character) {
-    this.screen[this.cursor.y * this.width + this.cursor.x] = [character, this.style]
+    this.screen[this.cursor.y * this.width + this.cursor.x] = [character, this.style.slice()]
     this.cursor.x++
     if (this.cursor.x >= this.width) {
       this.cursor.x = 0
@@ -181,12 +194,12 @@ class ScrollingTerminal {
   }
   deleteChar () {  // FIXME unused?
     this.moveBack()
-    this.screen.splice((this.cursor.y + 1) * this.width, 0, [' ', TERM_DEFAULT_STYLE])
+    this.screen.splice((this.cursor.y + 1) * this.width, 0, [' ', TERM_DEFAULT_STYLE.slice()])
     this.screen.splice(this.cursor.y * this.width + this.cursor.x, 1)
   }
   deleteForward (n) {
     n = Math.min(this.width, n)
-    for (let i = 0; i < n; i++) this.screen.splice((this.cursor.y + 1) * this.width, 0, [' ', TERM_DEFAULT_STYLE])
+    for (let i = 0; i < n; i++) this.screen.splice((this.cursor.y + 1) * this.width, 0, [' ', TERM_DEFAULT_STYLE.slice()])
     this.screen.splice(this.cursor.y * this.width + this.cursor.x, n)
   }
   clampCursor () {
@@ -205,11 +218,12 @@ class ScrollingTerminal {
     } else if (action === 'clear') {
       this.clear()
     } else if (action === 'bell') {
-      this.termScreen.load('B')
+      this.termScreen.load('U\x01B')
     } else if (action === 'back') {
       this.moveBack()
     } else if (action === 'new-line') {
       this.newLine()
+      this.cursor.x = 0
     } else if (action === 'return') {
       this.cursor.x = 0
     } else if (action === 'set-cursor') {
@@ -231,17 +245,21 @@ class ScrollingTerminal {
     } else if (action === 'set-cursor-style') {
       this.cursor.style = Math.max(0, Math.min(6, args[0]))
     } else if (action === 'reset-style') {
-      this.style = TERM_DEFAULT_STYLE
+      this.style = TERM_DEFAULT_STYLE.slice()
     } else if (action === 'add-attrs') {
-      this.style |= (args[0] << 16)
+      this.style[2] |= args[0]
     } else if (action === 'set-color-fg') {
-      this.style = (this.style & 0xFFFFFF00) | (1 << 8 << 16) | args[0]
+      this.style[0] = args[0]
+      this.style[2] |= 1
     } else if (action === 'set-color-bg') {
-      this.style = (this.style & 0xFFFF00FF) | (1 << 9 << 16) | (args[0] << 8)
+      this.style[1] = args[0]
+      this.style[2] |= 1 << 1
     } else if (action === 'reset-color-fg') {
-      this.style = this.style & 0xFFFEFF00
+      this.style[0] = 0
+      if (this.style[2] & 1) this.style[2] ^= 1
     } else if (action === 'reset-color-bg') {
-      this.style = this.style & 0xFFFD00FF
+      this.style[1] = 0
+      if (this.style[2] & (1 << 1)) this.style[2] ^= (1 << 1)
     } else if (action === 'hide-cursor') {
       this.cursor.visible = false
     } else if (action === 'show-cursor') {
@@ -250,65 +268,132 @@ class ScrollingTerminal {
   }
   write (text) {
     this.parser.write(text)
-    this.scheduleLoad()
   }
-  serialize () {
+  getScreenOpts () {
-    let serialized = 'S'
+    let data = 'O'
-    serialized += String.fromCodePoint(this.height + 1) + String.fromCodePoint(this.width + 1)
+    data += encodeAsCodePoint(25)
-    serialized += String.fromCodePoint(this.cursor.y + 1) + String.fromCodePoint(this.cursor.x + 1)
+    data += encodeAsCodePoint(80)
-
+    data += encodeAsCodePoint(this.theme)
+    data += encodeAsCodePoint(7)
+    data += encodeAsCodePoint(0)
+    data += encodeAsCodePoint(0)
+    data += encodeAsCodePoint(0)
     let attributes = +this.cursor.visible
     attributes |= (3 << 5) * +this.trackMouse // track mouse controls both
     attributes |= 3 << 7 // buttons/links always visible
     attributes |= (this.cursor.style << 9)
-    serialized += String.fromCodePoint(attributes + 1)
+    data += encodeAsCodePoint(attributes)
+    return data
+  }
+  getButtons () {
+    let data = 'B'
+    data += encodeAsCodePoint(this.buttonLabels.length)
+    data += this.buttonLabels.map(x => x + '\x01').join('')
+    return data
+  }
+  getTitle () {
+    return 'TESPTerm Web UI Demo\x01'
+  }
+  getCursor () {
+    let data = 'C'
+    data += encodeAsCodePoint(this.cursor.y)
+    data += encodeAsCodePoint(this.cursor.x)
+    data += encodeAsCodePoint(0)
+    return data
+  }
+  encodeColor (color) {
+    if (color < 256) {
+      return encodeAsCodePoint(color)
+    } else {
+      color -= 256
+      return encodeAsCodePoint((color & 0xFFF) | 0x10000) + encodeAsCodePoint(color >> 12)
+    }
+  }
+  serializeScreen () {
+    let serialized = 'S'
+    serialized += encodeAsCodePoint(0) + encodeAsCodePoint(0)
+    serialized += encodeAsCodePoint(this.height) + encodeAsCodePoint(this.width)
 
-    let lastStyle = null
+    let lastStyle = [null, null, null]
     let index = 0
     for (let cell of this.screen) {
-      let style = cell[1]
+      let style = cell[1].slice()
       if (this.rainbow) {
         let x = index % this.width
         let y = Math.floor(index / this.width)
-        // C instead of F in mask and 1 << 8 in attrs to change attr bits 8 and 9
+        // C instead of F in mask and 1 << 8 in attrs to change attr bits 1 and 2
-        style = (style & 0xFFFC0000) | (1 << 8 << 16) | getRainbowColor((x + y) / 10 + Date.now() / 1000)
+        let t = (x + y) / 10 + Date.now() / 1000
+        if (this.superRainbow) {
+          t = (x * y + Date.now()) / 100 + Date.now() / 1000
+        }
+        style[0] = getRainbowColor(t)
+        style[1] = 0
+        if (this.superRainbow) style[1] = getRainbowColor(t / 10)
+        style[2] = style[2] | 1
+        if (!this.superRainbow && style[2] & (1 << 1)) style[2] ^= (1 << 1)
         index++
       }
-      if (style !== lastStyle) {
+
-        let foreground = style & 0xFF
+      let foreground = style[0]
-        let background = (style >> 8) & 0xFF
+      let background = style[1]
-        let attributes = (style >> 16) & 0xFFFF
+      let attributes = style[2]
-        let setForeground = foreground !== (lastStyle & 0xFF)
+      let setForeground = foreground !== lastStyle[0]
-        let setBackground = background !== ((lastStyle >> 8) & 0xFF)
+      let setBackground = background !== lastStyle[1]
-        let setAttributes = attributes !== ((lastStyle >> 16) & 0xFFFF)
+      let setAttributes = attributes !== lastStyle[2]
-
+
-        if (setForeground && setBackground) serialized += '\x03' + String.fromCodePoint((style & 0xFFFF) + 1)
+      if (setForeground && setBackground) {
-        else if (setForeground) serialized += '\x05' + String.fromCodePoint(foreground + 1)
+        if (foreground < 256 && background < 256) {
-        else if (setBackground) serialized += '\x06' + String.fromCodePoint(background + 1)
+          serialized += '\x03' + encodeAsCodePoint((background << 8) | foreground)
-        if (setAttributes) serialized += '\x04' + String.fromCodePoint(attributes + 1)
+        } else {
-        lastStyle = style
+          serialized += '\x05' + this.encodeColor(foreground)
+          serialized += '\x06' + this.encodeColor(background)
         }
+      } else if (setForeground) serialized += '\x05' + this.encodeColor(foreground)
+      else if (setBackground) serialized += '\x06' + this.encodeColor(background)
+      if (setAttributes) serialized += '\x04' + encodeAsCodePoint(attributes)
+      lastStyle = style
+
       serialized += cell[0]
     }
     return serialized
   }
-  scheduleLoad () {
+  getUpdate () {
-    clearTimeout(this._scheduledLoad)
+    let topics = 0
-    if (this._lastLoad < Date.now() - TERM_MIN_DRAW_DELAY) {
+    let topicData = []
-      this.termScreen.load(this.serialize(), { theme: this.theme })
+    let screenOpts = this.getScreenOpts()
-      this.theme = -1 // prevent useless theme setting next time
+    let title = this.getTitle()
-    } else {
+    let buttons = this.getButtons()
-      this._scheduledLoad = setTimeout(() => {
+    let cursor = this.getCursor()
-        this.termScreen.load(this.serialize())
+    let screen = this.serializeScreen()
-      }, TERM_MIN_DRAW_DELAY - this._lastLoad)
+    if (this._screenOpts !== screenOpts) {
-    }
+      this._screenOpts = screenOpts
-  }
+      topicData.push(screenOpts)
-  rainbowTimer () {
+    }
-    if (!this.rainbow) return
+    if (this._title !== title) {
-    clearInterval(this._rainbowTimer)
+      this._title = title
-    this._rainbowTimer = setInterval(() => {
+      topicData.push(title)
-      if (this.rainbow) this.scheduleLoad()
+    }
-    }, 50)
+    if (this._buttons !== buttons) {
+      this._buttons = buttons
+      topicData.push(buttons)
+    }
+    if (this._cursor !== cursor) {
+      this._cursor = cursor
+      topicData.push(cursor)
+    }
+    if (this._screen !== screen) {
+      this._screen = screen
+      topicData.push(screen)
+    }
+    if (!topicData.length) return ''
+    return 'U' + encodeAsCodePoint(topics) + topicData.join('')
+  }
+  loadTimer () {
+    clearInterval(this._loadTimer)
+    this._loadTimer = setInterval(() => {
+      let update = this.getUpdate()
+      if (update) this.termScreen.load(update)
+    }, 30)
   }
 }
 
@@ -326,22 +411,7 @@ class Process extends EventEmitter {
 }
 
 let demoData = {
-  buttons: {
+  buttons: [],
-    1: '',
-    2: '',
-    3: '',
-    4: '',
-    5: function (terminal, shell) {
-      if (shell.child) shell.child.destroy()
-      let chars = 'info\r'
-      let loop = function () {
-        shell.write(chars[0])
-        chars = chars.substr(1)
-        if (chars) setTimeout(loop, 100)
-      }
-      setTimeout(loop, 200)
-    }
-  },
   mouseReceiver: null
 }
 
@@ -456,7 +526,7 @@ let demoshIndex = {
       }
       return new Promise((resolve, reject) => {
         const self = this
-        let x = 14
+        let x = 13
         let cycles = 0
         let loop = function () {
           for (let y = 0; y < splash.length; y++) {
@@ -464,9 +534,9 @@ let demoshIndex = {
             if (dx > 0) drawCell(dx, y)
           }
 
-          if (++x < 69) {
+          if (++x < 70) {
             if (++cycles >= 3) {
-              setTimeout(loop, 20)
+              setTimeout(loop, 50)
               cycles = 0
             } else loop()
           } else {
@@ -557,7 +627,7 @@ let demoshIndex = {
       let theme = +args[0] | 0
       const maxnum = themes.length
       if (!args.length || !Number.isFinite(theme) || theme < 0 || theme >= maxnum) {
-        this.emit('write', `\x1b[31mUsage: theme [0–${maxnum - 1}]\r\n`)
+        this.emit('write', `\x1b[31mUsage: theme [0–${maxnum - 1}]\n`)
         this.destroy()
         return
       }
@@ -568,6 +638,40 @@ let demoshIndex = {
       this.destroy()
     }
   },
+  themes: class ShowThemes extends Process {
+    color (hex) {
+      hex = parseInt(hex.substr(1), 16)
+      let r = hex >> 16
+      let g = (hex >> 8) & 0xFF
+      let b = hex & 0xFF
+      this.emit('write', `\x1b[48;2;${r};${g};${b}m`)
+      if (((r + g + b) / 3) > 127) {
+        this.emit('write', '\x1b[38;5;16m')
+      } else {
+        this.emit('write', '\x1b[38;5;255m')
+      }
+    }
+    run (...args) {
+      for (let i in themes) {
+        let theme = themes[i]
+
+        let name = `  ${i}`.substr(-2)
+
+        this.emit('write', `Theme ${name}: `)
+
+        for (let col = 0; col < 16; col++) {
+          let text = `  ${col}`.substr(-2)
+          this.color(theme[col])
+          this.emit('write', text)
+          this.emit('write', '\x1b[m ')
+        }
+
+        this.emit('write', '\n')
+      }
+
+      this.destroy()
+    }
+  },
   cursor: class SetCursor extends Process {
     run (...args) {
       let steady = args.includes('--steady')
@@ -584,16 +688,40 @@ let demoshIndex = {
     }
   },
   rainbow: class ToggleRainbow extends Process {
-    constructor (shell) {
+    constructor (shell, options = {}) {
       super()
       this.shell = shell
+      this.su = options.su
+      this.abort = false
+    }
+    write (data, newLine = true) {
+      if (data === 'y') {
+        this.shell.terminal.rainbow = !this.shell.terminal.rainbow
+        this.shell.terminal.superRainbow = true
+        demoData._didWarnRainbow = true
+      } else {
+        this.emit('write', data)
+      }
+      if (newLine) this.emit('write', '\x1b[0;32m\x1b[G\x1b[79PRainbow!\n')
+      this.destroy()
     }
     run () {
+      if (this.su && !this.shell.terminal.rainbow) {
+        if (!demoData._didWarnRainbow) {
+          this.emit('write', '\x1b[31;1mWarning: flashy colors. Continue? [y/N] ')
+        } else {
+          this.write('y', false)
+        }
+      } else {
         this.shell.terminal.rainbow = !this.shell.terminal.rainbow
-      this.shell.terminal.rainbowTimer()
+        this.shell.terminal.superRainbow = false
-      this.emit('write', '')
         this.destroy()
       }
+    }
+    destroy () {
+      this.abort = true
+      super.destroy()
+    }
   },
   mouse: class ShowMouse extends Process {
     constructor (shell) {
@@ -601,6 +729,15 @@ let demoshIndex = {
       this.shell = shell
     }
     run () {
+      this.emit('buttons', [
+        {
+          label: 'Exit',
+          action (shell) {
+            shell.write('\x03')
+          }
+        }
+      ])
+
       this.shell.terminal.trackMouse = true
       demoData.mouseReceiver = this
       this.randomData = []
@@ -618,7 +755,7 @@ let demoshIndex = {
     }
     render () {
       this.emit('write', '\x1b[m\x1b[2J\x1b[1;1H')
-      this.emit('write', '\x1b[97m\x1b[1mMouse Demo\r\n\x1b[mMouse movement, clicking and scrolling!')
+      this.emit('write', '\x1b[97m\x1b[1mMouse Demo\r\n\x1b[mMouse movement, clicking, and scrolling!')
 
       // render random data for scrolling
       for (let y = 0; y < 23; y++) {
@@ -662,47 +799,26 @@ let demoshIndex = {
     constructor (shell) {
       super()
       this.shell = shell
+      this.didDestroy = false
     }
     run (...args) {
       if (args.length === 0) {
-        this.emit('write', '\x1b[31mUsage: sudo <command>\x1b[m\r\n')
+        this.emit('write', '\x1b[31mUsage: sudo [command]\x1b[m\r\n')
-        this.destroy()
-      } else if (args.length === 4 && args.join(' ').toLowerCase() === 'make me a sandwich') {
-        const b = '\x1b[33m'
-        const r = '\x1b[0m'
-        const l = '\x1b[32m'
-        const c = '\x1b[38;5;229m'
-        const h = '\x1b[38;5;225m'
-        this.emit('write',
-          `                    ${b}_.---._\r\n` +
-          `                _.-~       ~-._\r\n` +
-          `            _.-~               ~-._\r\n` +
-          `        _.-~                       ~---._\r\n` +
-          `    _.-~                                 ~\\\r\n` +
-          ` .-~                                    _.;\r\n` +
-          ` :-._                               _.-~ ./\r\n` +
-          ` \`-._~-._                   _..__.-~ _.-~\r\n` +
-          `  ${c}/  ${b}~-._~-._              / .__..--${c}~-${l}---._\r\n` +
-          `${c} \\_____(_${b};-._\\.        _.-~_/${c}       ~)${l}.. . \\\r\n` +
-          `${l}    /(_____  ${b}\\\`--...--~_.-~${c}______..-+${l}_______)\r\n` +
-          `${l}  .(_________/${b}\`--...--~/${l}    _/ ${h}          ${b}/\\\r\n` +
-          `${b} /-._${h}     \\_     ${l}(___./_..-~${h}__.....${b}__..-~./\r\n` +
-          `${b} \`-._~-._${h}   ~\\--------~  .-~${b}_..__.-~ _.-~\r\n` +
-          `${b}     ~-._~-._ ${h}~---------\`  ${b}/ .__..--~\r\n` +
-          `${b}         ~-._\\.        _.-~_/\r\n` +
-          `${b}             \\\`--...--~_.-~\r\n` +
-          `${b}              \`--...--~${r}\r\n`)
         this.destroy()
       } else {
         let name = args.shift()
         if (this.shell.index[name]) {
           let Process = this.shell.index[name]
           if (Process instanceof Function) {
-            let child = new Process(this)
+            let child = this.child = new Process(this.shell, { su: true })
+            this.on('in', data => child.write(data))
             let write = data => this.emit('write', data)
+            let setButtons = buttons => this.emit('buttons', buttons)
             child.on('write', write)
+            child.on('buttons', setButtons)
             child.on('exit', code => {
               child.removeListener('write', write)
+              child.removeListener('buttons', setButtons)
               this.destroy()
             })
             child.run(...args)
@@ -716,12 +832,49 @@ let demoshIndex = {
         }
       }
     }
+    destroy () {
+      if (this.didDestroy) return
+      this.didDestroy = true
+      if (this.child) this.child.destroy()
+      super.destroy()
+    }
   },
   make: class Make extends Process {
+    constructor (shell, options = {}) {
+      super()
+      this.su = options.su
+    }
     run (...args) {
       if (args.length === 0) this.emit('write', '\x1b[31mmake: *** No targets specified.  Stop.\x1b[0m\r\n')
       else if (args.length === 3 && args.join(' ').toLowerCase() === 'me a sandwich') {
+        if (this.su) {
+          const b = '\x1b[33m'
+          const r = '\x1b[0m'
+          const l = '\x1b[32m'
+          const c = '\x1b[38;5;229m'
+          const h = '\x1b[38;5;225m'
+          this.emit('write',
+            `                    ${b}_.---._\r\n` +
+            `                _.-~       ~-._\r\n` +
+            `            _.-~               ~-._\r\n` +
+            `        _.-~                       ~---._\r\n` +
+            `    _.-~                                 ~\\\r\n` +
+            ` .-~                                    _.;\r\n` +
+            ` :-._                               _.-~ ./\r\n` +
+            ` \`-._~-._                   _..__.-~ _.-~\r\n` +
+            `  ${c}/  ${b}~-._~-._              / .__..--${c}~-${l}---._\r\n` +
+            `${c} \\_____(_${b};-._\\.        _.-~_/${c}       ~)${l}.. . \\\r\n` +
+            `${l}    /(_____  ${b}\\\`--...--~_.-~${c}______..-+${l}_______)\r\n` +
+            `${l}  .(_________/${b}\`--...--~/${l}    _/ ${h}          ${b}/\\\r\n` +
+            `${b} /-._${h}     \\_     ${l}(___./_..-~${h}__.....${b}__..-~./\r\n` +
+            `${b} \`-._~-._${h}   ~\\--------~  .-~${b}_..__.-~ _.-~\r\n` +
+            `${b}     ~-._~-._ ${h}~---------\`  ${b}/ .__..--~\r\n` +
+            `${b}         ~-._\\.        _.-~_/\r\n` +
+            `${b}             \\\`--...--~_.-~\r\n` +
+            `${b}              \`--...--~${r}\r\n`)
+        } else {
           this.emit('write', '\x1b[31mmake: me a sandwich : Permission denied\x1b[0m\r\n')
+        }
       } else {
         this.emit('write', `\x1b[31mmake: *** No rule to make target '${args.join(' ').toLowerCase()}'.  Stop.\x1b[0m\r\n`)
       }
@@ -747,6 +900,12 @@ let demoshIndex = {
     }
   }
 }
+let autocompleteIndex = {
+  'local-echo': 'local-echo [--suppress-note]',
+  theme: 'theme [n]',
+  cursor: 'cursor [block|line|bar] [--steady]',
+  sudo: 'sudo [command]'
+}
 
 class DemoShell {
   constructor (terminal, printInfo) {
@@ -756,6 +915,7 @@ class DemoShell {
     this.history = []
     this.historyIndex = 0
     this.cursorPos = 0
+    this.lastInputLength = 0
     this.child = null
     this.index = demoshIndex
 
@@ -775,6 +935,8 @@ class DemoShell {
     this.terminal.write('$ \x1b[m')
     this.history.unshift('')
     this.cursorPos = 0
+
+    this.setButtons()
   }
   copyFromHistoryIndex () {
     if (!this.historyIndex) return
@@ -782,8 +944,29 @@ class DemoShell {
     this.history[0] = current
     this.historyIndex = 0
   }
+  getCompleted (visual = false) {
+    if (this.history[0]) {
+      let input = this.history[0]
+      let prefix = ''
+      if (input.startsWith('sudo ')) {
+        let newInput = input.replace(/^(sudo\s+)+/, '')
+        prefix = input.substr(0, input.length - newInput.length)
+        input = newInput
+      }
+      for (let name in this.index) {
+        if (name.startsWith(input) && name !== input) {
+          if (visual && name in autocompleteIndex) return prefix + autocompleteIndex[name]
+          return prefix + name
+        }
+      }
+      return null
+    }
+    return null
+  }
   handleParsed (action, ...args) {
+    this.terminal.write(`\x1b[${this.lastInputLength - this.cursorPos}P`)
     this.terminal.write('\b\x1b[P'.repeat(this.cursorPos))
+
     if (action === 'write') {
       this.copyFromHistoryIndex()
       this.history[0] = this.history[0].substr(0, this.cursorPos) + args[0] + this.history[0].substr(this.cursorPos)
@@ -794,7 +977,11 @@ class DemoShell {
       this.cursorPos--
       if (this.cursorPos < 0) this.cursorPos = 0
     } else if (action === 'tab') {
-      console.warn('TAB not implemented') // TODO completion
+      let completed = this.getCompleted()
+      if (completed) {
+        this.history[0] = completed
+        this.cursorPos = this.history[0].length
+      }
     } else if (action === 'move-cursor-x') {
       this.cursorPos = Math.max(0, Math.min(this.history[this.historyIndex].length, this.cursorPos + args[0]))
     } else if (action === 'delete-line') {
@@ -817,17 +1004,27 @@ class DemoShell {
     this.terminal.write(this.history[this.historyIndex])
     this.terminal.write('\b'.repeat(this.history[this.historyIndex].length))
     this.terminal.moveForward(this.cursorPos)
-    this.terminal.write('') // dummy. Apply the moveFoward
+
+    this.lastInputLength = this.cursorPos
+
+    let completed = this.getCompleted(true)
+    if (this.historyIndex === 0 && completed && action !== 'return') {
+      // show closest match faintly
+      let rest = completed.substr(this.history[0].length)
+      this.terminal.write(`\x1b[2m${rest}\x1b[m${'\b'.repeat(rest.length)}`)
+      this.lastInputLength += rest.length
+    }
 
     if (action === 'return') {
-      this.terminal.write('\r\n')
+      this.terminal.write('\n')
       this.parse(this.history[this.historyIndex])
     }
   }
   parse (input) {
     if (input === 'help') input = 'info'
     // TODO: basic chaining (i.e. semicolon)
-    this.run(input)
+    if (input) this.run(input)
+    else this.prompt()
   }
   run (command) {
     let parts = ['']
@@ -857,11 +1054,17 @@ class DemoShell {
   spawn (name, args = []) {
     let Process = this.index[name]
     if (Process instanceof Function) {
+      this.setButtons([])
       this.child = new Process(this)
       let write = data => this.terminal.write(data)
+      let setButtons = buttons => this.setButtons(buttons)
       this.child.on('write', write)
+      this.child.on('buttons', setButtons)
       this.child.on('exit', code => {
-        if (this.child) this.child.removeListener('write', write)
+        if (this.child) {
+          this.child.removeListener('write', write)
+          this.child.removeListener('buttons', setButtons)
+        }
         this.child = null
         this.prompt(!code)
       })
@@ -871,6 +1074,46 @@ class DemoShell {
       this.prompt()
     }
   }
+
+  setButtons (buttons) {
+    if (!buttons) {
+      const shell = this
+      let writeChars = chars => {
+        let loop = () => {
+          shell.write(chars[0])
+          chars = chars.substr(1)
+          if (chars) setTimeout(loop, 100)
+        }
+        setTimeout(loop, 200)
+      }
+
+      buttons = [
+        {
+          label: 'Open GitHub',
+          action (shell) {
+            if (shell.child) shell.child.destroy()
+            writeChars('github\r')
+          }
+        },
+        {
+          label: 'Help',
+          action (shell) {
+            if (shell.child) shell.child.destroy()
+            writeChars('info\r')
+          }
+        }
+      ]
+    }
+    if (!buttons.length) buttons.push({ label: '', action () {} })
+    this.buttons = buttons
+    this.terminal.buttonLabels = buttons.map(x => x.label)
+  }
+
+  onButtonPress (index) {
+    let button = this.buttons[index]
+    if (!button) return
+    button.action(this, this.terminal)
+  }
 }
 
 window.demoInterface = module.exports = {
@@ -882,11 +1125,7 @@ window.demoInterface = module.exports = {
       this.shell.write(content)
     } else if (type === 'b') {
       let button = content.charCodeAt(0)
-      let action = demoData.buttons[button]
+      this.shell.onButtonPress(button - 1)
-      if (action) {
-        if (typeof action === 'string') this.shell.write(action)
-        else if (action instanceof Function) action(this.terminal, this.shell)
-      }
     } else if (type === 'm' || type === 'p' || type === 'r') {
       let row = parse2B(content, 0)
       let column = parse2B(content, 2)

js/term/index.js

@@ -1,4 +1,5 @@
 const { qs, mk } = require('../utils')
+const localize = require('../lang')
 const Notify = require('../notif')
 const TermScreen = require('./screen')
 const TermConnection = require('./connection')
@@ -6,6 +7,7 @@ const TermInput = require('./input')
 const TermUpload = require('./upload')
 const initSoftKeyboard = require('./soft_keyboard')
 const attachDebugScreen = require('./debug_screen')
+const initButtons = require('./buttons')
 
 /** Init the terminal sub-module - called from HTML */
 module.exports = function (opts) {
@@ -17,6 +19,13 @@ module.exports = function (opts) {
   screen.conn = conn
   input.termUpload = termUpload
 
+  const buttons = initButtons(input)
+  screen.on('button-labels', labels => {
+    // TODO: don't use pointers for this
+    buttons.labels.splice(0, buttons.labels.length, ...labels)
+    buttons.update()
+  })
+
   let showSplashTimeout = null
   let showSplash = (obj, delay = 250) => {
     clearTimeout(showSplashTimeout)
@@ -27,11 +36,11 @@ module.exports = function (opts) {
 
   conn.on('open', () => {
     // console.log('*open')
-    showSplash({ title: 'Connecting', loading: true })
+    showSplash({ title: localize('term_conn.connecting'), loading: true })
   })
   conn.on('connect', () => {
     // console.log('*connect')
-    showSplash({ title: 'Waiting for content', loading: true })
+    showSplash({ title: localize('term_conn.waiting_content'), loading: true })
   })
   conn.on('load', () => {
     // console.log('*load')
@@ -40,7 +49,7 @@ module.exports = function (opts) {
   })
   conn.on('disconnect', () => {
     // console.log('*disconnect')
-    showSplash({ title: 'Disconnected' })
+    showSplash({ title: localize('term_conn.disconnected') }, 500)
     screen.screen = []
     screen.screenFG = []
     screen.screenBG = []
@@ -48,12 +57,12 @@ module.exports = function (opts) {
   })
   conn.on('silence', () => {
     // console.log('*silence')
-    showSplash({ title: 'Waiting for server', loading: true }, 0)
+    showSplash({ title: localize('term_conn.waiting_server'), loading: true }, 0)
   })
   // conn.on('ping-fail', () => { screen.window.statusScreen = { title: 'Disconnected' } })
   conn.on('ping-success', () => {
     // console.log('*ping-success')
-    showSplash({ title: 'Re-connecting', loading: true }, 0)
+    showSplash({ title: localize('term_conn.reconnecting'), loading: true }, 0)
   })
 
   conn.init()
@@ -67,20 +76,36 @@ module.exports = function (opts) {
   }
 
   qs('#screen').appendChild(screen.canvas)
-  screen.load(opts.labels, opts) // load labels and theme
 
   initSoftKeyboard(screen, input)
   if (attachDebugScreen) attachDebugScreen(screen)
 
+  let fullscreenIcon = {} // dummy
   let isFullscreen = false
+  let properFullscreen = false
   let fitScreen = false
+  let screenPadding = screen.window.padding
   let fitScreenIfNeeded = function fitScreenIfNeeded () {
     if (isFullscreen) {
+      fullscreenIcon.className = 'icn-resize-small'
+      if (properFullscreen) {
         screen.window.fitIntoWidth = window.screen.width
         screen.window.fitIntoHeight = window.screen.height
+        screen.window.padding = 0
+      } else {
+        screen.window.fitIntoWidth = window.innerWidth
+        if (qs('#term-nav').classList.contains('hidden')) {
+          screen.window.fitIntoHeight = window.innerHeight
+        } else {
+          screen.window.fitIntoHeight = window.innerHeight - 24
+        }
+        screen.window.padding = 0
+      }
     } else {
-      screen.window.fitIntoWidth = fitScreen ? window.innerWidth - 20 : 0
+      fullscreenIcon.className = 'icn-resize-full'
+      screen.window.fitIntoWidth = fitScreen ? window.innerWidth - 4 : 0
       screen.window.fitIntoHeight = fitScreen ? window.innerHeight : 0
+      screen.window.padding = screenPadding
     }
   }
   fitScreenIfNeeded()
@@ -106,6 +131,8 @@ module.exports = function (opts) {
 
   // add fullscreen mode & button
   if (window.Element.prototype.requestFullscreen || window.Element.prototype.webkitRequestFullscreen) {
+    properFullscreen = true
+
     let checkForFullscreen = function () {
       // document.fullscreenElement is not really supported yet, so here's a hack
       if (isFullscreen && (window.innerWidth !== window.screen.width || window.innerHeight !== window.screen.height)) {
@@ -114,28 +141,40 @@ module.exports = function (opts) {
       }
     }
     setInterval(checkForFullscreen, 500)
+  }
 
   // (why are the buttons anchors?)
   let button = mk('a')
+  button.id = 'fullscreen-button'
   button.href = '#'
   button.addEventListener('click', e => {
     e.preventDefault()
 
+    if (document.body.classList.contains('pseudo-fullscreen')) {
+      document.body.classList.remove('pseudo-fullscreen')
+      isFullscreen = false
+      fitScreenIfNeeded()
+      return
+    }
+
     isFullscreen = true
     fitScreenIfNeeded()
     screen.updateSize()
 
+    if (properFullscreen) {
       if (screen.canvas.requestFullscreen) screen.canvas.requestFullscreen()
       else screen.canvas.webkitRequestFullscreen()
+    } else {
+      document.body.classList.add('pseudo-fullscreen')
+    }
   })
-    let icon = mk('i')
+  fullscreenIcon = mk('i')
-    icon.classList.add('icn-resize-full') // TODO: less confusing icons
+  fullscreenIcon.className = 'icn-resize-full'
-    button.appendChild(icon)
+  button.appendChild(fullscreenIcon)
   let span = mk('span')
-    span.textContent = 'Fullscreen'
+  span.textContent = localize('term_nav.fullscreen')
   button.appendChild(span)
   qs('#term-nav').insertBefore(button, qs('#term-nav').firstChild)
-  }
 
   // for debugging
   window.termScreen = screen

js/term/input.js

@@ -242,8 +242,8 @@ module.exports = function (conn, screen) {
   }
 
   /** Send a button event */
-  function sendButton (n) {
+  function sendButton (index) {
-    conn.send('b' + String.fromCharCode(n))
+    conn.send('b' + String.fromCharCode(index + 1))
   }
 
   const shouldAcceptEvent = function () {
@@ -354,13 +354,6 @@ module.exports = function (conn, screen) {
   function init (opts) {
     initKeys(opts)
 
-    // Button presses
-    $('#action-buttons button').forEach(s => {
-      s.addEventListener('click', function (evt) {
-        sendButton(+this.dataset['n'])
-      })
-    })
-
     // global mouse state tracking - for motion reporting
     window.addEventListener('mousedown', evt => {
       if (evt.button === 0) mb1 = 1
@@ -404,6 +397,7 @@ module.exports = function (conn, screen) {
 
     /** Send a literal string message */
     sendString,
+    sendButton,
 
     /** Enable alternate key modes (cursors, numpad, fn) */
     setAlts: function (cu, np, fn, crlf) {

js/term/screen.js

@@ -55,6 +55,7 @@ module.exports = class TermScreen extends EventEmitter {
       devicePixelRatio: 1,
       fontFamily: '"DejaVu Sans Mono", "Liberation Mono", "Inconsolata", "Menlo", monospace',
       fontSize: 20,
+      padding: 6,
       gridScaleX: 1.0,
       gridScaleY: 1.2,
       fitIntoWidth: 0,
@@ -67,11 +68,15 @@ module.exports = class TermScreen extends EventEmitter {
     // scaling caused by fitIntoWidth/fitIntoHeight
     this._windowScale = 1
 
+    // actual padding, as it may be disabled by fullscreen mode etc.
+    this._padding = 0
+
     // properties of this.window that require updating size and redrawing
     this.windowState = {
       width: 0,
       height: 0,
       devicePixelRatio: 0,
+      padding: 0,
       gridScaleX: 0,
       gridScaleY: 0,
       fontFamily: '',
@@ -98,10 +103,12 @@ module.exports = class TermScreen extends EventEmitter {
     const self = this
     this.window = new Proxy(this._window, {
       set (target, key, value, receiver) {
+        if (target[key] !== value) {
           target[key] = value
           self.scheduleSizeUpdate()
           self.renderer.scheduleDraw(`window:${key}=${value}`)
           self.emit(`update-window:${key}`, value)
+        }
         return true
       }
     })
@@ -215,7 +222,7 @@ module.exports = class TermScreen extends EventEmitter {
           selectionPos[1]}px)`
       }
 
-      if (!touchDidMove) {
+      if (!touchDidMove && !this.mouseMode.clicks) {
         this.emit('tap', Object.assign(e, {
           x: touchPosition[0],
           y: touchPosition[1]
@@ -261,10 +268,20 @@ module.exports = class TermScreen extends EventEmitter {
       }
     })
 
+    let aggregateWheelDelta = 0
     this.canvas.addEventListener('wheel', e => {
       if (this.mouseMode.clicks) {
-        this.input.onMouseWheel(...this.screenToGrid(e.offsetX, e.offsetY),
+        if (Math.abs(e.wheelDeltaY) === 120) {
-          e.deltaY > 0 ? 1 : -1)
+          // mouse wheel scrolling
+          this.input.onMouseWheel(...this.screenToGrid(e.offsetX, e.offsetY), e.deltaY > 0 ? 1 : -1)
+        } else {
+          // smooth scrolling
+          aggregateWheelDelta -= e.wheelDeltaY
+          if (Math.abs(aggregateWheelDelta) >= 40) {
+            this.input.onMouseWheel(...this.screenToGrid(e.offsetX, e.offsetY), aggregateWheelDelta > 0 ? 1 : -1)
+            aggregateWheelDelta = 0
+          }
+        }
 
         // prevent page scrolling
         e.preventDefault()
@@ -312,10 +329,14 @@ module.exports = class TermScreen extends EventEmitter {
   screenToGrid (x, y, rounded = false) {
     let cellSize = this.getCellSize()
 
-    return [
+    x = x / this._windowScale - this._padding
-      Math.floor((x + (rounded ? cellSize.width / 2 : 0)) / cellSize.width),
+    y = y / this._windowScale - this._padding
-      Math.floor(y / cellSize.height)
+    x = Math.floor((x + (rounded ? cellSize.width / 2 : 0)) / cellSize.width)
-    ]
+    y = Math.floor(y / cellSize.height)
+    x = Math.max(0, Math.min(this.window.width - 1, x))
+    y = Math.max(0, Math.min(this.window.height - 1, y))
+
+    return [x, y]
   }
 
   /**
@@ -328,7 +349,7 @@ module.exports = class TermScreen extends EventEmitter {
   gridToScreen (x, y, withScale = false) {
     let cellSize = this.getCellSize()
 
-    return [x * cellSize.width, y * cellSize.height].map(v => withScale ? v * this._windowScale : v)
+    return [x * cellSize.width, y * cellSize.height].map(v => this._padding + (withScale ? v * this._windowScale : v))
   }
 
   /**
@@ -363,7 +384,7 @@ module.exports = class TermScreen extends EventEmitter {
    */
   updateSize () {
     // see below (this is just updating it)
-    this._window.devicePixelRatio = Math.round(this._windowScale * (window.devicePixelRatio || 1) * 2) / 2
+    this._window.devicePixelRatio = Math.ceil(this._windowScale * (window.devicePixelRatio || 1))
 
     let didChange = false
     for (let key in this.windowState) {
@@ -378,13 +399,15 @@ module.exports = class TermScreen extends EventEmitter {
         width,
         height,
         fitIntoWidth,
-        fitIntoHeight
+        fitIntoHeight,
+        padding
       } = this.window
       const cellSize = this.getCellSize()
 
       // real height of the canvas element in pixels
       let realWidth = width * cellSize.width
       let realHeight = height * cellSize.height
+      let originalWidth = realWidth
 
       if (fitIntoWidth && fitIntoHeight) {
         let terminalAspect = realWidth / realHeight
@@ -392,30 +415,30 @@ module.exports = class TermScreen extends EventEmitter {
 
         if (terminalAspect < fitAspect) {
           // align heights
-          realHeight = fitIntoHeight
+          realHeight = fitIntoHeight - 2 * padding
           realWidth = realHeight * terminalAspect
         } else {
           // align widths
-          realWidth = fitIntoWidth
+          realWidth = fitIntoWidth - 2 * padding
           realHeight = realWidth / terminalAspect
         }
-      } else if (fitIntoWidth) {
-        realHeight = fitIntoWidth / (realWidth / realHeight)
-        realWidth = fitIntoWidth
-      } else if (fitIntoHeight) {
-        realWidth = fitIntoHeight * (realWidth / realHeight)
-        realHeight = fitIntoHeight
       }
 
       // store new window scale
-      this._windowScale = realWidth / (width * cellSize.width)
+      this._windowScale = realWidth / originalWidth
+
+      realWidth += 2 * padding
+      realHeight += 2 * padding
+
+      // store padding
+      this._padding = padding * (originalWidth / realWidth)
 
       // the DPR must be rounded to a very nice value to prevent gaps between cells
-      let devicePixelRatio = this._window.devicePixelRatio = Math.round(this._windowScale * (window.devicePixelRatio || 1) * 2) / 2
+      let devicePixelRatio = this._window.devicePixelRatio = Math.ceil(this._windowScale * (window.devicePixelRatio || 1))
 
-      this.canvas.width = width * devicePixelRatio * cellSize.width
+      this.canvas.width = (width * cellSize.width + 2 * Math.round(this._padding)) * devicePixelRatio
       this.canvas.style.width = `${realWidth}px`
-      this.canvas.height = height * devicePixelRatio * cellSize.height
+      this.canvas.height = (height * cellSize.height + 2 * Math.round(this._padding)) * devicePixelRatio
       this.canvas.style.height = `${realHeight}px`
 
       // the screen has been cleared (by changing canvas width)

js/term/screen_parser.js

@@ -1,13 +1,56 @@
 const $ = require('../lib/chibi')
 const { qs } = require('../utils')
-const { themes } = require('./themes')
 
 // constants for decoding the update blob
+const SEQ_SKIP = 1
 const SEQ_REPEAT = 2
 const SEQ_SET_COLORS = 3
 const SEQ_SET_ATTRS = 4
 const SEQ_SET_FG = 5
 const SEQ_SET_BG = 6
+const SEQ_SET_ATTR_0 = 7
+
+function du (str) {
+  let num = str.codePointAt(0)
+  if (num > 0xDFFF) num -= 0x800
+  return num - 1
+}
+
+/* eslint-disable no-multi-spaces */
+const TOPIC_SCREEN_OPTS  = 'O'
+const TOPIC_CONTENT      = 'S'
+const TOPIC_TITLE        = 'T'
+const TOPIC_BUTTONS      = 'B'
+const TOPIC_CURSOR       = 'C'
+const TOPIC_INTERNAL     = 'D'
+const TOPIC_BELL         = '!'
+
+const OPT_CURSOR_VISIBLE   = (1 << 0)
+const OPT_DEBUGBAR         = (1 << 1)
+const OPT_CURSORS_ALT_MODE = (1 << 2)
+const OPT_NUMPAD_ALT_MODE  = (1 << 3)
+const OPT_FN_ALT_MODE      = (1 << 4)
+const OPT_CLICK_TRACKING   = (1 << 5)
+const OPT_MOVE_TRACKING    = (1 << 6)
+const OPT_SHOW_BUTTONS     = (1 << 7)
+const OPT_SHOW_CONFIG_LINKS = (1 << 8)
+// const OPT_CURSOR_SHAPE   = (7 << 9)
+const OPT_CRLF_MODE        = (1 << 12)
+const OPT_BRACKETED_PASTE  = (1 << 13)
+const OPT_REVERSE_VIDEO    = (1 << 14)
+
+const ATTR_FG        = (1 << 0)  // 1 if not using default background color (ignore cell bg) - color extension bit
+const ATTR_BG        = (1 << 1)  // 1 if not using default foreground color (ignore cell fg) - color extension bit
+const ATTR_BOLD      = (1 << 2)  // Bold font
+const ATTR_UNDERLINE = (1 << 3)  // Underline decoration
+const ATTR_INVERSE   = (1 << 4)  // Invert colors - this is useful so we can clear then with SGR manipulation commands
+const ATTR_BLINK     = (1 << 5)  // Blinking
+const ATTR_ITALIC    = (1 << 6)  // Italic font
+const ATTR_STRIKE    = (1 << 7)  // Strike-through decoration
+const ATTR_OVERLINE  = (1 << 8)  // Over-line decoration
+const ATTR_FAINT     = (1 << 9)  // Faint foreground color (reduced alpha)
+const ATTR_FRAKTUR   = (1 << 10) // Fraktur font (unicode substitution)
+/* eslint-enable no-multi-spaces */
 
 module.exports = class ScreenParser {
   constructor (screen) {
@@ -16,77 +59,74 @@ module.exports = class ScreenParser {
     // true if TermScreen#load was called at least once
     this.contentLoaded = false
   }
+
   /**
-   * Parses the content of an `S` message and schedules a draw
+   * Hide the warning message about failed data load
-   * @param {string} str - the message content
    */
-  loadContent (str) {
+  hideLoadFailedMsg () {
-    // current index
-    let i = 0
-    let strArray = Array.from ? Array.from(str) : str.split('')
-
-    // Uncomment to capture screen content for the demo page
-    // console.log(JSON.stringify(`S${str}`))
-
     if (!this.contentLoaded) {
       let errmsg = qs('#load-failed')
       if (errmsg) errmsg.parentNode.removeChild(errmsg)
       this.contentLoaded = true
     }
+  }
 
-    // window size
+  loadUpdate (str) {
-    const newHeight = strArray[i++].codePointAt(0) - 1
+    // console.log(`update ${str}`)
-    const newWidth = strArray[i++].codePointAt(0) - 1
+    // current index
-    const resized = (this.screen.window.height !== newHeight) || (this.screen.window.width !== newWidth)
+    let ci = 0
-    this.screen.window.height = newHeight
+    let strArray = Array.from ? Array.from(str) : str.split('')
-    this.screen.window.width = newWidth
 
-    // cursor position
+    let text
-    let [cursorY, cursorX] = [
+    let resized = false
-      strArray[i++].codePointAt(0) - 1,
+    const topics = du(strArray[ci++])
-      strArray[i++].codePointAt(0) - 1
+    // this.screen.cursor.hanging = !!(attributes & (1 << 1))
-    ]
-    let cursorMoved = (cursorX !== this.screen.cursor.x || cursorY !== this.screen.cursor.y)
-    this.screen.cursor.x = cursorX
-    this.screen.cursor.y = cursorY
 
-    if (cursorMoved) {
+    while (ci < strArray.length) {
-      this.screen.renderer.resetCursorBlink()
+      const topic = strArray[ci++]
-      this.screen.emit('cursor-moved')
+
-    }
+      if (topic === TOPIC_SCREEN_OPTS) {
+        const newHeight = du(strArray[ci++])
+        const newWidth = du(strArray[ci++])
+        const theme = du(strArray[ci++])
+        const defFg = (du(strArray[ci++]) & 0xFFFF) | ((du(strArray[ci++]) & 0xFFFF) << 16)
+        const defBg = (du(strArray[ci++]) & 0xFFFF) | ((du(strArray[ci++]) & 0xFFFF) << 16)
+        const attributes = du(strArray[ci++])
+
+        // theming
+        this.screen.renderer.loadTheme(theme)
+        this.screen.renderer.setDefaultColors(defFg, defBg)
 
-    // attributes
+        // apply size
-    let attributes = strArray[i++].codePointAt(0) - 1
+        resized = (this.screen.window.height !== newHeight) || (this.screen.window.width !== newWidth)
+        this.screen.window.height = newHeight
+        this.screen.window.width = newWidth
 
-    this.screen.cursor.visible = !!(attributes & 1)
+        // process attributes
-    this.screen.cursor.hanging = !!(attributes & (1 << 1))
+        this.screen.cursor.visible = !!(attributes & OPT_CURSOR_VISIBLE)
 
         this.screen.input.setAlts(
-      !!(attributes & (1 << 2)), // cursors alt
+          !!(attributes & OPT_CURSORS_ALT_MODE),
-      !!(attributes & (1 << 3)), // numpad alt
+          !!(attributes & OPT_NUMPAD_ALT_MODE),
-      !!(attributes & (1 << 4)), // fn keys alt
+          !!(attributes & OPT_FN_ALT_MODE),
-      !!(attributes & (1 << 12)) // crlf mode
+          !!(attributes & OPT_CRLF_MODE)
         )
 
-    let trackMouseClicks = !!(attributes & (1 << 5))
+        const trackMouseClicks = !!(attributes & OPT_CLICK_TRACKING)
-    let trackMouseMovement = !!(attributes & (1 << 6))
+        const trackMouseMovement = !!(attributes & OPT_MOVE_TRACKING)
 
         // 0 - Block blink     2 - Block steady (1 is unused)
         // 3 - Underline blink 4 - Underline steady
         // 5 - I-bar blink     6 - I-bar steady
         let cursorShape = (attributes >> 9) & 0x07
-
         // if it's not zero, decrement such that the two most significant bits
         // are the type and the least significant bit is the blink state
         if (cursorShape > 0) cursorShape--
-
+        const cursorStyle = cursorShape >> 1
-    let cursorStyle = cursorShape >> 1
+        const cursorBlinking = !(cursorShape & 1)
-    let cursorBlinking = !(cursorShape & 1)
-
         if (cursorStyle === 0) this.screen.cursor.style = 'block'
         else if (cursorStyle === 1) this.screen.cursor.style = 'line'
         else if (cursorStyle === 2) this.screen.cursor.style = 'bar'
-
         if (this.screen.cursor.blinking !== cursorBlinking) {
           this.screen.cursor.blinking = cursorBlinking
           this.screen.renderer.resetCursorBlink()
@@ -100,14 +140,112 @@ module.exports = class ScreenParser {
           movement: trackMouseMovement
         }
 
-    let showButtons = !!(attributes & (1 << 7))
+        const showButtons = !!(attributes & OPT_SHOW_BUTTONS)
-    let showConfigLinks = !!(attributes & (1 << 8))
+        const showConfigLinks = !!(attributes & OPT_SHOW_CONFIG_LINKS)
 
         $('.x-term-conf-btn').toggleClass('hidden', !showConfigLinks)
         $('#action-buttons').toggleClass('hidden', !showButtons)
 
-    this.screen.bracketedPaste = !!(attributes & (1 << 13))
+        this.screen.bracketedPaste = !!(attributes & OPT_BRACKETED_PASTE)
-    this.screen.reverseVideo = !!(attributes & (1 << 14))
+        this.screen.reverseVideo = !!(attributes & OPT_REVERSE_VIDEO)
+
+        const debugbar = !!(attributes & OPT_DEBUGBAR)
+        // TODO do something with debugbar
+
+      } else if (topic === TOPIC_CURSOR) {
+
+        // cursor position
+        const cursorY = du(strArray[ci++])
+        const cursorX = du(strArray[ci++])
+        const hanging = du(strArray[ci++])
+
+        const cursorMoved = (
+          hanging !== this.screen.cursor.hanging ||
+          cursorX !== this.screen.cursor.x ||
+          cursorY !== this.screen.cursor.y)
+
+        this.screen.cursor.x = cursorX
+        this.screen.cursor.y = cursorY
+
+        this.screen.cursor.hanging = !!hanging
+
+        if (cursorMoved) {
+          this.screen.renderer.resetCursorBlink()
+          this.screen.emit('cursor-moved')
+        }
+
+        this.screen.renderer.scheduleDraw('cursor-moved')
+      } else if (topic === TOPIC_TITLE) {
+
+        // TODO optimize this
+        text = ''
+        while (ci < strArray.length) {
+          let c = strArray[ci++]
+          if (c !== '\x01') {
+            text += c
+          } else {
+            break
+          }
+        }
+
+        qs('#screen-title').textContent = text
+        if (text.length === 0) text = 'Terminal'
+        qs('title').textContent = `${text} :: ESPTerm`
+
+      } else if (topic === TOPIC_BUTTONS) {
+        const count = du(strArray[ci++])
+
+        let labels = []
+        for (let j = 0; j < count; j++) {
+          text = ''
+          while (ci < strArray.length) {
+            let c = strArray[ci++]
+            if (c === '\x01') break
+            text += c
+          }
+          labels.push(text)
+        }
+
+        this.screen.emit('button-labels', labels)
+      } else if (topic === TOPIC_BELL) {
+
+        this.screen.beep()
+
+      } else if (topic === TOPIC_INTERNAL) {
+        // debug info
+
+        const flags = du(strArray[ci++])
+        const cursorAttrs = du(strArray[ci++])
+        const regionStart = du(strArray[ci++])
+        const regionEnd = du(strArray[ci++])
+        const charsetGx = du(strArray[ci++])
+        const charsetG0 = strArray[ci++]
+        const charsetG1 = strArray[ci++]
+        const freeHeap = du(strArray[ci++])
+        const clientCount = du(strArray[ci++])
+
+        this.screen.emit('internal', {
+          flags,
+          cursorAttrs,
+          regionStart,
+          regionEnd,
+          charsetGx,
+          charsetG0,
+          charsetG1,
+          freeHeap,
+          clientCount
+        })
+      } else if (topic === TOPIC_CONTENT) {
+        // set screen content
+
+        const frameY = du(strArray[ci++])
+        const frameX = du(strArray[ci++])
+        const frameHeight = du(strArray[ci++])
+        const frameWidth = du(strArray[ci++])
+
+        if (this.screen._debug && this.screen.window.debug) {
+          this.screen._debug.pushFrame([frameX, frameY, frameWidth, frameHeight])
+        }
 
         // content
         let fg = 7
@@ -115,6 +253,7 @@ module.exports = class ScreenParser {
         let attrs = 0
         let cell = 0 // cell index
         let lastChar = ' '
+        let frameLength = frameWidth * frameHeight
         let screenLength = this.screen.window.width * this.screen.window.height
 
         if (resized) {
@@ -126,14 +265,22 @@ module.exports = class ScreenParser {
           this.screen.screenAttrs = new Array(screenLength).fill(0)
         }
 
-    const MASK_LINE_ATTR = 0xC8
+        const MASK_LINE_ATTR = ATTR_UNDERLINE | ATTR_OVERLINE | ATTR_STRIKE
-    const MASK_BLINK = 1 << 4
+        const MASK_BLINK = ATTR_BLINK
 
-    let setCellContent = () => {
+        let pushCell = () => {
           // Remove blink attribute if it wouldn't have any effect
           let myAttrs = attrs
-      let hasFG = attrs & (1 << 8)
+          let hasFG = attrs & ATTR_FG
-      let hasBG = attrs & (1 << 9)
+          let hasBG = attrs & ATTR_BG
+          let cellFG = fg
+          let cellBG = bg
+
+          // use 0,0 if no fg/bg. this is to match back-end implementation
+          // and allow leaving out fg/bg setting for cells with none
+          if (!hasFG) cellFG = 0
+          if (!hasBG) cellBG = 0
+
           if ((myAttrs & MASK_BLINK) !== 0 &&
             ((lastChar === ' ' && ((myAttrs & MASK_LINE_ATTR) === 0)) || // no line styles
               (fg === bg && hasFG && hasBG) // invisible text
@@ -147,51 +294,78 @@ module.exports = class ScreenParser {
             else this.screen.blinkingCellCount--
           }
 
-      this.screen.screen[cell] = lastChar
+          let cellXInFrame = cell % frameWidth
-      this.screen.screenFG[cell] = fg
+          let cellYInFrame = Math.floor(cell / frameWidth)
-      this.screen.screenBG[cell] = bg
+          let index = (frameY + cellYInFrame) * this.screen.window.width + frameX + cellXInFrame
-      this.screen.screenAttrs[cell] = myAttrs
+
+          // 8 dark system colors turn bright when bold
+          if ((myAttrs & ATTR_BOLD) && !(myAttrs & ATTR_FAINT) && hasFG && cellFG < 8) {
+            cellFG += 8
+          }
+
+          this.screen.screen[index] = lastChar
+          this.screen.screenFG[index] = cellFG
+          this.screen.screenBG[index] = cellBG
+          this.screen.screenAttrs[index] = myAttrs
         }
 
-    while (i < strArray.length && cell < screenLength) {
+        while (ci < strArray.length && cell < frameLength) {
-      let character = strArray[i++]
+          let character = strArray[ci++]
           let charCode = character.codePointAt(0)
 
-      let data
+          let data, count
           switch (charCode) {
             case SEQ_REPEAT:
-          let count = strArray[i++].codePointAt(0) - 1
+              count = du(strArray[ci++])
               for (let j = 0; j < count; j++) {
-            setCellContent()
+                pushCell()
-            if (++cell > screenLength) break
+                if (++cell > frameLength) break
               }
               break
 
+            case SEQ_SKIP:
+              cell += du(strArray[ci++])
+              break
+
             case SEQ_SET_COLORS:
-          data = strArray[i++].codePointAt(0) - 1
+              data = du(strArray[ci++])
               fg = data & 0xFF
               bg = (data >> 8) & 0xFF
               break
 
             case SEQ_SET_ATTRS:
-          data = strArray[i++].codePointAt(0) - 1
+              data = du(strArray[ci++])
               attrs = data & 0xFFFF
               break
 
+            case SEQ_SET_ATTR_0:
+              attrs = 0
+              break
+
             case SEQ_SET_FG:
-          data = strArray[i++].codePointAt(0) - 1
+              data = du(strArray[ci++])
-          fg = data & 0xFF
+              if (data & 0x10000) {
+                data &= 0xFFF
+                data |= (du(strArray[ci++]) & 0xFFF) << 12
+                data += 256
+              }
+              fg = data
               break
 
             case SEQ_SET_BG:
-          data = strArray[i++].codePointAt(0) - 1
+              data = du(strArray[ci++])
-          bg = data & 0xFF
+              if (data & 0x10000) {
+                data &= 0xFFF
+                data |= (du(strArray[ci++]) & 0xFFF) << 12
+                data += 256
+              }
+              bg = data
               break
 
             default:
               if (charCode < 32) character = '\ufffd'
               lastChar = character
-          setCellContent()
+              pushCell()
               cell++
           }
         }
@@ -200,62 +374,26 @@ module.exports = class ScreenParser {
 
         this.screen.renderer.scheduleDraw('load', 16)
         this.screen.conn.emit('load')
+
       }
 
-  /**
+      if ((topics & 0x3B) !== 0) this.hideLoadFailedMsg()
-   * Parses the content of a `T` message and updates the screen title and button
+    }
-   * labels.
-   * @param {string} str - the message content
-   */
-  loadLabels (str) {
-    let pieces = str.split('\x01')
-    let screenTitle = pieces[0]
-    qs('#screen-title').textContent = screenTitle
-    if (screenTitle.length === 0) screenTitle = 'Terminal'
-    qs('title').textContent = `${screenTitle} :: ESPTerm`
-    $('#action-buttons button').forEach((button, i) => {
-      let label = pieces[i + 1].trim()
-      // if empty string, use the "dim" effect and put nbsp instead to
-      // stretch the button vertically
-      button.innerHTML = label ? $.htmlEscape(label) : '&nbsp;'
-      button.style.opacity = label ? 1 : 0.2
-    })
   }
 
   /**
    * Loads a message from the server, and optionally a theme.
    * @param {string} str - the message
-   * @param {object} [opts] - options
-   * @param {number} [opts.theme] - theme
-   * @param {number} [opts.defaultFg] - default foreground
-   * @param {number} [opts.defaultBg] - default background
    */
-  load (str, opts = null) {
+  load (str) {
     const content = str.substr(1)
 
-    if (opts) {
+    // This is a good place for debugging the message
-      if (typeof opts.defaultFg !== 'undefined' && typeof opts.defaultBg !== 'undefined') {
+    // console.log(str)
-        this.screen.renderer.setDefaultColors(opts.defaultFg, opts.defaultBg)
-      }
-
-      if (typeof opts.theme !== 'undefined') {
-        if (opts.theme >= 0 && opts.theme < themes.length) {
-          this.screen.renderer.palette = themes[opts.theme]
-        }
-      }
-    }
 
     switch (str[0]) {
-      case 'S':
+      case 'U':
-        this.loadContent(content)
+        this.loadUpdate(content)
-        break
-
-      case 'T':
-        this.loadLabels(content)
-        break
-
-      case 'B':
-        this.screen.beep()
         break
 
       case 'G':

js/term/screen_renderer.js

@@ -9,6 +9,21 @@ const frakturExceptions = {
   'Z': '\u2128'
 }
 
+// TODO do not repeat - this is also defined in screen_parser ...
+/* eslint-disable no-multi-spaces */
+const ATTR_FG        = (1 << 0)  // 1 if not using default background color (ignore cell bg) - color extension bit
+const ATTR_BG        = (1 << 1)  // 1 if not using default foreground color (ignore cell fg) - color extension bit
+const ATTR_BOLD      = (1 << 2)  // Bold font
+const ATTR_UNDERLINE = (1 << 3)  // Underline decoration
+const ATTR_INVERSE   = (1 << 4)  // Invert colors - this is useful so we can clear then with SGR manipulation commands
+const ATTR_BLINK     = (1 << 5)  // Blinking
+const ATTR_ITALIC    = (1 << 6)  // Italic font
+const ATTR_STRIKE    = (1 << 7)  // Strike-through decoration
+const ATTR_OVERLINE  = (1 << 8)  // Over-line decoration
+const ATTR_FAINT     = (1 << 9)  // Faint foreground color (reduced alpha)
+const ATTR_FRAKTUR   = (1 << 10) // Fraktur font (unicode substitution)
+/* eslint-enable no-multi-spaces */
+
 module.exports = class ScreenRenderer {
   constructor (screen) {
     this.screen = screen
@@ -37,6 +52,9 @@ module.exports = class ScreenRenderer {
   resetDrawn () {
     // used to determine if a cell should be redrawn; storing the current state
     // as it is on screen
+    if (this.screen.window && this.screen.window.debug) {
+      console.log('Resetting drawn screen')
+    }
     this.drawnScreen = []
     this.drawnScreenFG = []
     this.drawnScreenBG = []
@@ -61,11 +79,17 @@ module.exports = class ScreenRenderer {
     }
   }
 
+  loadTheme (i) {
+    if (i in themes) this.palette = themes[i]
+  }
+
   setDefaultColors (fg, bg) {
+    if (fg !== this.defaultFgNum || bg !== this.defaultBgNum) {
+      this.resetDrawn()
       this.defaultFgNum = fg
       this.defaultBgNum = bg
-    this.resetDrawn()
+      this.scheduleDraw('default-colors')
-    this.scheduleDraw('defaultColors')
+    }
   }
 
   /**
@@ -159,9 +183,27 @@ module.exports = class ScreenRenderer {
    */
   drawBackground ({ x, y, cellWidth, cellHeight, bg }) {
     const ctx = this.ctx
+    const { width, height } = this.screen.window
+    const padding = Math.round(this.screen._padding)
     ctx.fillStyle = this.getColor(bg)
-    ctx.clearRect(x * cellWidth, y * cellHeight, cellWidth, cellHeight)
+    let screenX = x * cellWidth + padding
-    ctx.fillRect(x * cellWidth, y * cellHeight, cellWidth, cellHeight)
+    let screenY = y * cellHeight + padding
+    let isBorderCell = x === 0 || y === 0 || x === width - 1 || y === height - 1
+    if (isBorderCell) {
+      let left = screenX
+      let top = screenY
+      let right = screenX + cellWidth
+      let bottom = screenY + cellHeight
+      if (x === 0) left -= padding
+      else if (x === width - 1) right += padding
+      if (y === 0) top -= padding
+      else if (y === height - 1) bottom += padding
+      ctx.clearRect(left, top, right - left, bottom - top)
+      ctx.fillRect(left, top, right - left, bottom - top)
+    } else {
+      ctx.clearRect(screenX, screenY, cellWidth, cellHeight)
+      ctx.fillRect(screenX, screenY, cellWidth, cellHeight)
+    }
   }
 
   /**
@@ -182,24 +224,28 @@ module.exports = class ScreenRenderer {
     if (!text) return
 
     const ctx = this.ctx
+    const padding = Math.round(this.screen._padding)
 
     let underline = false
     let strike = false
     let overline = false
-    if (attrs & (1 << 1)) ctx.globalAlpha = 0.5
+    if (attrs & ATTR_FAINT) ctx.globalAlpha = 0.5
-    if (attrs & (1 << 3)) underline = true
+    if (attrs & ATTR_UNDERLINE) underline = true
-    if (attrs & (1 << 5)) text = ScreenRenderer.alphaToFraktur(text)
+    if (attrs & ATTR_FRAKTUR) text = ScreenRenderer.alphaToFraktur(text)
-    if (attrs & (1 << 6)) strike = true
+    if (attrs & ATTR_STRIKE) strike = true
-    if (attrs & (1 << 7)) overline = true
+    if (attrs & ATTR_OVERLINE) overline = true
 
     ctx.fillStyle = this.getColor(fg)
 
+    let screenX = x * cellWidth + padding
+    let screenY = y * cellHeight + padding
+
     let codePoint = text.codePointAt(0)
     if (codePoint >= 0x2580 && codePoint <= 0x259F) {
       // block elements
       ctx.beginPath()
-      const left = x * cellWidth
+      const left = screenX
-      const top = y * cellHeight
+      const top = screenY
       const cw = cellWidth
       const ch = cellHeight
       const c2w = cellWidth / 2
@@ -251,16 +297,16 @@ module.exports = class ScreenRenderer {
           for (let dx = 0; dx < cw; dx += dotSpacingX) {
             // prevent overflow
             let dotSizeY = Math.min(dotSize, ch - dy)
-            ctx.rect(x * cw + (alignRight ? cw - dx - dotSize : dx), y * ch + dy, dotSize, dotSizeY)
+            ctx.rect(left + (alignRight ? cw - dx - dotSize : dx), top + dy, dotSize, dotSizeY)
           }
           alignRight = !alignRight
         }
       } else if (codePoint === 0x2594) {
         // upper one eighth block >▔<
-        ctx.rect(x * cw, y * ch, cw, ch / 8)
+        ctx.rect(left, top, cw, ch / 8)
       } else if (codePoint === 0x2595) {
         // right one eighth block >▕<
-        ctx.rect((x + 7 / 8) * cw, y * ch, cw / 8, ch)
+        ctx.rect(left + (7 / 8) * cw, top, cw / 8, ch)
       } else if (codePoint === 0x2596) {
         // left bottom quadrant >▖<
         ctx.rect(left, top + c2h, c2w, c2h)
@@ -300,9 +346,33 @@ module.exports = class ScreenRenderer {
       }
 
       ctx.fill()
+    } else if (codePoint >= 0xE0B0 && codePoint <= 0xE0B3) {
+      // powerline symbols, except branch, line, and lock. Basically, just the triangles
+      ctx.beginPath()
+
+      if (codePoint === 0xE0B0 || codePoint === 0xE0B1) {
+        // right-pointing triangle
+        ctx.moveTo(screenX, screenY)
+        ctx.lineTo(screenX + cellWidth, screenY + cellHeight / 2)
+        ctx.lineTo(screenX, screenY + cellHeight)
+      } else if (codePoint === 0xE0B2 || codePoint === 0xE0B3) {
+        // left-pointing triangle
+        ctx.moveTo(screenX + cellWidth, screenY)
+        ctx.lineTo(screenX, screenY + cellHeight / 2)
+        ctx.lineTo(screenX + cellWidth, screenY + cellHeight)
+      }
+
+      if (codePoint % 2 === 0) {
+        // triangle
+        ctx.fill()
+      } else {
+        // chevron
+        ctx.strokeStyle = ctx.fillStyle
+        ctx.stroke()
+      }
     } else {
       // Draw other characters using the text renderer
-      ctx.fillText(text, (x + 0.5) * cellWidth, (y + 0.5) * cellHeight)
+      ctx.fillText(text, screenX + 0.5 * cellWidth, screenY + 0.5 * cellHeight)
     }
 
     // -- line drawing - a reference for a possible future rect/line implementation ---
@@ -324,21 +394,21 @@ module.exports = class ScreenRenderer {
       ctx.beginPath()
 
       if (underline) {
-        let lineY = Math.round(y * cellHeight + charSize.height) + 0.5
+        let lineY = Math.round(screenY + charSize.height) + 0.5
-        ctx.moveTo(x * cellWidth, lineY)
+        ctx.moveTo(screenX, lineY)
-        ctx.lineTo((x + 1) * cellWidth, lineY)
+        ctx.lineTo(screenX + cellWidth, lineY)
       }
 
       if (strike) {
-        let lineY = Math.round((y + 0.5) * cellHeight) + 0.5
+        let lineY = Math.round(screenY + 0.5 * cellHeight) + 0.5
-        ctx.moveTo(x * cellWidth, lineY)
+        ctx.moveTo(screenX, lineY)
-        ctx.lineTo((x + 1) * cellWidth, lineY)
+        ctx.lineTo(screenX + cellWidth, lineY)
       }
 
       if (overline) {
-        let lineY = Math.round(y * cellHeight) + 0.5
+        let lineY = Math.round(screenY) + 0.5
-        ctx.moveTo(x * cellWidth, lineY)
+        ctx.moveTo(screenX, lineY)
-        ctx.lineTo((x + 1) * cellWidth, lineY)
+        ctx.lineTo(screenX + cellWidth, lineY)
       }
 
       ctx.stroke()
@@ -402,7 +472,7 @@ module.exports = class ScreenRenderer {
     ctx.textBaseline = 'middle'
 
     // bits in the attr value that affect the font
-    const FONT_MASK = 0b101
+    const FONT_MASK = ATTR_BOLD | ATTR_ITALIC
 
     // Map of (attrs & FONT_MASK) -> Array of cell indices
     let fontGroups = new Map()
@@ -413,11 +483,10 @@ module.exports = class ScreenRenderer {
     for (let cell = 0; cell < screenLength; cell++) {
       let x = cell % width
       let y = Math.floor(cell / width)
-      let isCursor = !this.screen.cursor.hanging &&
+      let isCursor = this.cursorBlinkOn &&
         this.screen.cursor.x === x &&
         this.screen.cursor.y === y &&
-        this.screen.cursor.visible &&
+        this.screen.cursor.visible
-        this.cursorBlinkOn
 
       let wasCursor = x === this.drawnCursor[0] && y === this.drawnCursor[1]
 
@@ -428,13 +497,13 @@ module.exports = class ScreenRenderer {
       let bg = this.screen.screenBG[cell] | 0
       let attrs = this.screen.screenAttrs[cell] | 0
 
-      if (!(attrs & (1 << 8))) fg = this.defaultFgNum
+      if (!(attrs & ATTR_FG)) fg = this.defaultFgNum
-      if (!(attrs & (1 << 9))) bg = this.defaultBgNum
+      if (!(attrs & ATTR_BG)) bg = this.defaultBgNum
 
-      if (attrs & (1 << 10)) [fg, bg] = [bg, fg] // swap - reversed character colors
+      if (attrs & ATTR_INVERSE) [fg, bg] = [bg, fg] // swap - reversed character colors
       if (this.screen.reverseVideo) [fg, bg] = [bg, fg] // swap - reversed all screen
 
-      if (attrs & (1 << 4) && !this.blinkStyleOn) {
+      if (attrs & ATTR_BLINK && !this.blinkStyleOn) {
         // blinking is enabled and blink style is off
         // set text to nothing so drawCharacter doesn't draw anything
         text = ''
@@ -450,7 +519,8 @@ module.exports = class ScreenRenderer {
         bg !== this.drawnScreenBG[cell] || // background updated
         attrs !== this.drawnScreenAttrs[cell] || // attributes updated
         isCursor !== wasCursor || // cursor blink/position updated
-        (isCursor && this.screen.cursor.style !== this.drawnCursor[2]) // cursor style updated
+        (isCursor && this.screen.cursor.style !== this.drawnCursor[2]) || // cursor style updated
+        (isCursor && this.screen.cursor.hanging !== this.drawnCursor[3]) // cursor hanging updated
 
       let font = attrs & FONT_MASK
       if (!fontGroups.has(font)) fontGroups.set(font, [])
@@ -499,6 +569,7 @@ module.exports = class ScreenRenderer {
     // mask to redrawing regions only
     if (this.screen.window.graphics >= 1) {
       let debug = this.screen.window.debug && this.screen._debug
+      let padding = Math.round(this.screen._padding)
       ctx.save()
       ctx.beginPath()
       for (let y = 0; y < height; y++) {
@@ -508,13 +579,13 @@ module.exports = class ScreenRenderer {
           let redrawing = redrawMap.get(cell)
           if (redrawing && regionStart === null) regionStart = x
           if (!redrawing && regionStart !== null) {
-            ctx.rect(regionStart * cellWidth, y * cellHeight, (x - regionStart) * cellWidth, cellHeight)
+            ctx.rect(padding + regionStart * cellWidth, padding + y * cellHeight, (x - regionStart) * cellWidth, cellHeight)
             if (debug) this.screen._debug.clipRect(regionStart * cellWidth, y * cellHeight, (x - regionStart) * cellWidth, cellHeight)
             regionStart = null
           }
         }
         if (regionStart !== null) {
-          ctx.rect(regionStart * cellWidth, y * cellHeight, (width - regionStart) * cellWidth, cellHeight)
+          ctx.rect(padding + regionStart * cellWidth, padding + y * cellHeight, (width - regionStart) * cellWidth, cellHeight)
           if (debug) this.screen._debug.clipRect(regionStart * cellWidth, y * cellHeight, (width - regionStart) * cellWidth, cellHeight)
         }
       }
@@ -548,8 +619,8 @@ module.exports = class ScreenRenderer {
       // set font once because in Firefox, this is a really slow action for some
       // reason
       let modifiers = {}
-      if (font & 1) modifiers.weight = 'bold'
+      if (font & ATTR_BOLD) modifiers.weight = 'bold'
-      if (font & 1 << 2) modifiers.style = 'italic'
+      if (font & ATTR_ITALIC) modifiers.style = 'italic'
       ctx.font = this.screen.getFont(modifiers)
 
       for (let data of fontGroups.get(font)) {
@@ -565,22 +636,34 @@ module.exports = class ScreenRenderer {
           this.drawnScreenBG[cell] = bg
           this.drawnScreenAttrs[cell] = attrs
 
-          if (isCursor) this.drawnCursor = [x, y, this.screen.cursor.style]
+          if (isCursor) this.drawnCursor = [x, y, this.screen.cursor.style, this.screen.cursor.hanging]
 
+          // draw cursor
           if (isCursor && !inSelection) {
             ctx.save()
             ctx.beginPath()
+
+            let cursorX = x
+            let cursorY = y
+
+            if (this.screen.cursor.hanging) {
+              // draw hanging cursor in the margin
+              cursorX += 1
+            }
+
+            let screenX = cursorX * cellWidth + this.screen._padding
+            let screenY = cursorY * cellHeight + this.screen._padding
             if (this.screen.cursor.style === 'block') {
               // block
-              ctx.rect(x * cellWidth, y * cellHeight, cellWidth, cellHeight)
+              ctx.rect(screenX, screenY, cellWidth, cellHeight)
             } else if (this.screen.cursor.style === 'bar') {
               // vertical bar
               let barWidth = 2
-              ctx.rect(x * cellWidth, y * cellHeight, barWidth, cellHeight)
+              ctx.rect(screenX, screenY, barWidth, cellHeight)
             } else if (this.screen.cursor.style === 'line') {
               // underline
               let lineHeight = 2
-              ctx.rect(x * cellWidth, y * cellHeight + charSize.height, cellWidth, lineHeight)
+              ctx.rect(screenX, screenY + charSize.height, cellWidth, lineHeight)
             }
             ctx.clip()
 
@@ -590,9 +673,9 @@ module.exports = class ScreenRenderer {
             // HACK: ensure cursor is visible
             if (fg === bg) bg = fg === 0 ? 7 : 0
 
-            this.drawBackground({ x, y, cellWidth, cellHeight, bg })
+            this.drawBackground({ x: cursorX, y: cursorY, cellWidth, cellHeight, bg })
             this.drawCharacter({
-              x, y, charSize, cellWidth, cellHeight, text, fg, attrs
+              x: cursorX, y: cursorY, charSize, cellWidth, cellHeight, text, fg, attrs
             })
             ctx.restore()
           }
@@ -604,7 +687,7 @@ module.exports = class ScreenRenderer {
 
     if (this.screen.window.debug && this.screen._debug) this.screen._debug.drawEnd()
 
-    this.screen.emit('draw')
+    this.screen.emit('draw', why)
   }
 
   drawStatus (statusScreen) {
@@ -620,14 +703,15 @@ module.exports = class ScreenRenderer {
     this.drawnScreen = []
 
     const cellSize = this.screen.getCellSize()
-    const screenWidth = width * cellSize.width
+    const screenWidth = width * cellSize.width + 2 * this.screen._padding
-    const screenHeight = height * cellSize.height
+    const screenHeight = height * cellSize.height + 2 * this.screen._padding
 
     ctx.setTransform(devicePixelRatio, 0, 0, devicePixelRatio, 0, 0)
-    ctx.clearRect(0, 0, screenWidth, screenHeight)
+    ctx.fillStyle = this.getColor(this.defaultBgNum)
+    ctx.fillRect(0, 0, screenWidth, screenHeight)
 
     ctx.font = `24px ${fontFamily}`
-    ctx.fillStyle = '#fff'
+    ctx.fillStyle = this.getColor(this.defaultFgNum)
     ctx.textAlign = 'center'
     ctx.textBaseline = 'middle'
     ctx.fillText(statusScreen.title || '', screenWidth / 2, screenHeight / 2 - 50)
@@ -637,7 +721,7 @@ module.exports = class ScreenRenderer {
       ctx.save()
       ctx.translate(screenWidth / 2, screenHeight / 2 + 20)
 
-      ctx.strokeStyle = '#fff'
+      ctx.strokeStyle = this.getColor(this.defaultFgNum)
       ctx.lineWidth = 5
       ctx.lineCap = 'round'
 

js/term/soft_keyboard.js

@@ -48,6 +48,7 @@ module.exports = function (screen, input) {
 
   // sends the difference between the last and the new composition string
   let sendInputDelta = function (newValue) {
+    if (newValue === null) newValue = '' // this sometimes happens, why?
     let resend = false
     if (newValue.length > lastCompositionString.length) {
       if (newValue.startsWith(lastCompositionString)) {

js/term/themes.js

@@ -1,58 +1,70 @@
+const $ = require('../lib/chibi')
+const { rgb255ToHex } = require('../lib/color_utils')
 
 const themes = exports.themes = [
-  [ // Tango
+  [ // 0 - Tango - terminator
     '#111213', '#CC0000', '#4E9A06', '#C4A000', '#3465A4', '#75507B', '#06989A', '#D3D7CF',
     '#555753', '#EF2929', '#8AE234', '#FCE94F', '#729FCF', '#AD7FA8', '#34E2E2', '#EEEEEC'
   ],
-  [ // Linux (CGA)
+  [ // 1 - Linux (CGA) - terminator
     '#000000', '#aa0000', '#00aa00', '#aa5500', '#0000aa', '#aa00aa', '#00aaaa', '#aaaaaa',
     '#555555', '#ff5555', '#55ff55', '#ffff55', '#5555ff', '#ff55ff', '#55ffff', '#ffffff'
   ],
-  [ // xterm
+  [ // 2 - xterm - terminator
     '#000000', '#cd0000', '#00cd00', '#cdcd00', '#0000ee', '#cd00cd', '#00cdcd', '#e5e5e5',
     '#7f7f7f', '#ff0000', '#00ff00', '#ffff00', '#5c5cff', '#ff00ff', '#00ffff', '#ffffff'
   ],
-  [ // rxvt
+  [ // 3 - rxvt - terminator
     '#000000', '#cd0000', '#00cd00', '#cdcd00', '#0000cd', '#cd00cd', '#00cdcd', '#faebd7',
     '#404040', '#ff0000', '#00ff00', '#ffff00', '#0000ff', '#ff00ff', '#00ffff', '#ffffff'
   ],
-  [ // Ambience
+  [ // 4 - Ambience - terminator
     '#2e3436', '#cc0000', '#4e9a06', '#c4a000', '#3465a4', '#75507b', '#06989a', '#d3d7cf',
     '#555753', '#ef2929', '#8ae234', '#fce94f', '#729fcf', '#ad7fa8', '#34e2e2', '#eeeeec'
   ],
-  [ // Solarized light
+  [ // 5 - Solarized Dark - terminator
     '#073642', '#dc322f', '#859900', '#b58900', '#268bd2', '#d33682', '#2aa198', '#eee8d5',
     '#002b36', '#cb4b16', '#586e75', '#657b83', '#839496', '#6c71c4', '#93a1a1', '#fdf6e3'
   ],
-  [ // CGA NTSC
+  [ // 6 - CGA NTSC - wikipedia
     '#000000', '#69001A', '#117800', '#769100', '#1A00A6', '#8019AB', '#289E76', '#A4A4A4',
     '#484848', '#C54E76', '#6DD441', '#D2ED46', '#765BFF', '#DC75FF', '#84FAD2', '#FFFFFF'
   ],
-  [ // ZX Spectrum
+  [ // 7 - ZX Spectrum - wikipedia
     '#000000', '#aa0000', '#00aa00', '#aaaa00', '#0000aa', '#aa00aa', '#00aaaa', '#aaaaaa',
     '#000000', '#ff0000', '#00FF00', '#ffff00', '#0000ff', '#ff00ff', '#00ffff', '#ffffff'
   ],
-  [ // Apple II
+  [ // 8 - Apple II - wikipedia
     '#000000', '#722640', '#0E5940', '#808080', '#40337F', '#E434FE', '#1B9AFE', '#BFB3FF',
     '#404C00', '#E46501', '#1BCB01', '#BFCC80', '#808080', '#F1A6BF', '#8DD9BF', '#ffffff'
   ],
-  [ // Commodore
+  [ // 9 - Commodore - wikipedia
     '#000000', '#8D3E37', '#55A049', '#AAB95D', '#40318D', '#80348B', '#72C1C8', '#D59F74',
     '#8B5429', '#B86962', '#94E089', '#FFFFB2', '#8071CC', '#AA5FB6', '#87D6DD', '#ffffff'
+  ],
+  [ // 10 - Solarized Light - https://github.com/sgerrand/xfce4-terminal-colors-solarized
+    '#eee8d5', '#dc322f', '#859900', '#b58900', '#268bd2', '#d33682', '#2aa198', '#073642',
+    '#fdf6e3', '#cb4b16', '#93a1a1', '#839496', '#657b83', '#6c71c4', '#586e75', '#002b36'
+  ],
+  [ // 11 - Solarized Dark High contrast - https://github.com/sgerrand/xfce4-terminal-colors-solarized
+    '#073642', '#dc322f', '#859900', '#b58900', '#268bd2', '#d33682', '#2aa198', '#fdf6e3',
+    '#002b36', '#cb4b16', '#657b83', '#839496', '#93a1a1', '#6c71c4', '#eee8d5', '#fdf6e3'
   ]
 ]
 
 exports.fgbgThemes = [
-  ['#AAAAAA', '#000000'], // GREY_ON_BLACK
+  ['#AAAAAA', '#000000', 'Lnx', 'Linux'],
-  ['#EFF0F1', '#31363B'], // BREEZE
+  ['#FFFFFF', '#000000', 'W+K', 'White on Black'],
-  ['#FFFFFF', '#000000'], // WHITE_ON_BLACK
+  ['#00FF00', '#000000', 'Lim', 'Lime'],
-  ['#00FF00', '#000000'], // GREEN_ON_BLACK
+  ['#E53C00', '#000000', 'Nix', 'Nixie'],
-  ['#E53C00', '#000000'], // ORANGE_ON_BLACK
+  ['#EFF0F1', '#31363B', 'Brz', 'Breeze'],
-  ['#FFFFFF', '#300A24'], // AMBIENCE
+  ['#FFFFFF', '#300A24', 'Amb', 'Ambiance'],
-  ['#839496', '#002B36'], // SOLARIZED_DARK
+  ['#839496', '#002B36', 'SoD', 'Solarized Dark'],
-  ['#657B83', '#FDF6E3'], // SOLARIZED_LIGHT
+  ['#93a1a1', '#002b36', 'SoH', 'Solarized Dark (High Contrast)'],
-  ['#000000', '#FFFFDD'], // BLACK_ON_YELLOW
+  ['#657B83', '#FDF6E3', 'SoL', 'Solarized Light'],
-  ['#000000', '#FFFFFF']  // BLACK_ON_WHITE
+  ['#000000', '#FFD75F', 'Wsp', 'Wasp'],
+  ['#000000', '#FFFFDD', 'K+Y', 'Black on Yellow'],
+  ['#000000', '#FFFFFF', 'K+W', 'Black on White']
 ]
 
 let colorTable256 = null
@@ -62,7 +74,7 @@ exports.buildColorTable = function () {
 
   // 256color lookup table
   // should not be used to look up 0-15 (will return transparent)
-  colorTable256 = new Array(16).fill('rgba(0, 0, 0, 0)')
+  colorTable256 = new Array(16).fill('#000000')
 
   // fill color table
   // colors 16-231 are a 6x6x6 color cube
@@ -72,14 +84,14 @@ exports.buildColorTable = function () {
         let redValue = red * 40 + (red ? 55 : 0)
         let greenValue = green * 40 + (green ? 55 : 0)
         let blueValue = blue * 40 + (blue ? 55 : 0)
-        colorTable256.push(`rgb(${redValue}, ${greenValue}, ${blueValue})`)
+        colorTable256.push(rgb255ToHex(redValue, greenValue, blueValue))
       }
     }
   }
   // colors 232-255 are a grayscale ramp, sans black and white
   for (let gray = 0; gray < 24; gray++) {
     let value = gray * 10 + 8
-    colorTable256.push(`rgb(${value}, ${value}, ${value})`)
+    colorTable256.push(rgb255ToHex(value, value, value))
   }
 
   return colorTable256
@@ -88,24 +100,26 @@ exports.buildColorTable = function () {
 exports.SELECTION_FG = '#333'
 exports.SELECTION_BG = '#b2d7fe'
 
-function resolveColor (themeN, shade) {
+exports.themePreview = function (themeN) {
-  shade = +shade
+  $('[data-fg]').forEach((elem) => {
-  if (shade < 16) shade = themes[themeN][shade]
-  else {
-    shade = exports.buildColorTable()[shade]
-  }
-  return shade
-}
-
-exports.themePreview = function (n) {
-  document.querySelectorAll('[data-fg]').forEach((elem) => {
     let shade = elem.dataset.fg
-    if (/^\d+$/.test(shade)) shade = resolveColor(n, shade)
+    if (/^\d+$/.test(shade)) shade = exports.toHex(shade, themeN)
     elem.style.color = shade
   })
-  document.querySelectorAll('[data-bg]').forEach((elem) => {
+  $('[data-bg]').forEach((elem) => {
     let shade = elem.dataset.bg
-    if (/^\d+$/.test(shade)) shade = resolveColor(n, shade)
+    if (/^\d+$/.test(shade)) shade = exports.toHex(shade, themeN)
     elem.style.backgroundColor = shade
   })
 }
+
+exports.toHex = function (shade, themeN) {
+  if (/^\d+$/.test(shade)) {
+    shade = +shade
+    if (shade < 16) shade = themes[themeN][shade]
+    else {
+      shade = exports.buildColorTable()[shade]
+    }
+  }
+  return shade
+}

js/term/upload.js

@@ -44,7 +44,7 @@ module.exports = function (conn, input, screen) {
     lines = v.split('\n')
     line_i = 0
     inline_pos = 0 // offset in line
-    send_delay_ms = qs('#fu_delay').value
+    send_delay_ms = +qs('#fu_delay').value
 
     // sanitize - 0 causes overflows
     if (send_delay_ms < 0) {
@@ -92,13 +92,18 @@ module.exports = function (conn, input, screen) {
       }
     }
 
+    let maxChunk = +qs('#fu_chunk').value
+    if (maxChunk === 0 || maxChunk > MAX_LINE_LEN) {
+      maxChunk = MAX_LINE_LEN
+    }
+
     let chunk
-    if ((curLine.length - inline_pos) <= MAX_LINE_LEN) {
+    if ((curLine.length - inline_pos) <= maxChunk) {
-      chunk = curLine.substr(inline_pos, MAX_LINE_LEN)
+      chunk = curLine.substr(inline_pos, maxChunk)
       inline_pos = 0
     } else {
-      chunk = curLine.substr(inline_pos, MAX_LINE_LEN)
+      chunk = curLine.substr(inline_pos, maxChunk)
-      inline_pos += MAX_LINE_LEN
+      inline_pos += maxChunk
     }
 
     if (!input.sendString(chunk)) {
@@ -154,19 +159,19 @@ module.exports = function (conn, input, screen) {
         reader.readAsText(file)
       }, false)
 
-      qs('#term-fu-open').addEventListener('click', function () {
+      qs('#term-fu-open').addEventListener('click', e => {
+        e.preventDefault()
         openUploadDialog()
-        return false
       })
 
-      qs('#term-fu-start').addEventListener('click', function () {
+      qs('#term-fu-start').addEventListener('click', e => {
+        e.preventDefault()
         startUpload()
-        return false
       })
 
-      qs('#term-fu-close').addEventListener('click', function () {
+      qs('#term-fu-close').addEventListener('click', e => {
+        e.preventDefault()
         fuClose()
-        return false
       })
     },
     open: openUploadDialog,

js/term_conf.js

@@ -0,0 +1,105 @@
+const ColorTriangle = require('./lib/colortriangle')
+const $ = require('./lib/chibi')
+const themes = require('./term/themes')
+const { qs } = require('./utils')
+
+function selectedTheme () {
+  return +$('#theme').val()
+}
+
+exports.init = function () {
+  $('#theme').on('change', showColor)
+
+  $('#default_fg').on('input', showColor)
+  $('#default_bg').on('input', showColor)
+
+  let opts = {
+    padding: 10,
+    event: 'drag',
+    uppercase: true,
+    trianglePointerSize: 20,
+    // wheelPointerSize: 12,
+    size: 200,
+    parseColor: (color) => {
+      return themes.toHex(color, selectedTheme())
+    }
+  }
+
+  ColorTriangle.initInput(qs('#default_fg'), opts)
+  ColorTriangle.initInput(qs('#default_bg'), opts)
+
+  $('.colorprev.bg span').on('click', function () {
+    const bg = this.dataset.bg
+    if (typeof bg != 'undefined') $('#default_bg').val(bg)
+    showColor()
+  })
+
+  $('.colorprev.fg span').on('click', function () {
+    const fg = this.dataset.fg
+    if (typeof fg != 'undefined') $('#default_fg').val(fg)
+    showColor()
+  })
+
+  let $presets = $('#fgbg_presets')
+  for (let i = 0; i < themes.fgbgThemes.length; i++) {
+    const thm = themes.fgbgThemes[i]
+    const fg = thm[0]
+    const bg = thm[1]
+    const lbl = thm[2]
+    const tit = thm[3]
+    $presets.htmlAppend(
+        '<span class="preset" ' +
+        'data-xfg="' + fg + '" data-xbg="' + bg + '" ' +
+        'style="color:' + fg + ';background:' + bg + '" title="' + tit + '">&nbsp;' + lbl + '&nbsp;</span>')
+
+    if ((i + 1) % 5 === 0) $presets.htmlAppend('<br>')
+  }
+
+  $('.preset').on('click', function () {
+    $('#default_fg').val(this.dataset.xfg)
+    $('#default_bg').val(this.dataset.xbg)
+    showColor()
+  })
+
+  showColor()
+}
+
+function showColor () {
+  let ex = qs('.color-example')
+  let fg = $('#default_fg').val()
+  let bg = $('#default_bg').val()
+
+  if (/^\d+$/.test(fg)) {
+    fg = +fg
+  } else if (!/^#[\da-f]{6}$/i.test(fg)) {
+    fg = 'black'
+  }
+
+  if (/^\d+$/.test(bg)) {
+    bg = +bg
+  } else if (!/^#[\da-f]{6}$/i.test(bg)) {
+    bg = 'black'
+  }
+
+  const themeN = selectedTheme()
+  ex.dataset.fg = fg
+  ex.dataset.bg = bg
+
+  themes.themePreview(themeN)
+
+  $('.colorprev.fg span').css('background', themes.toHex(bg, themeN))
+}
+
+exports.nextTheme = () => {
+  let sel = qs('#theme')
+  let i = sel.selectedIndex
+  sel.options[++i % sel.options.length].selected = true
+  showColor()
+}
+
+exports.prevTheme = () => {
+  let sel = qs('#theme')
+  let i = sel.selectedIndex
+  sel.options[(sel.options.length + (--i)) % sel.options.length].selected = true
+  showColor()
+}

js/utils.js

@@ -26,11 +26,6 @@ exports.cr = function cr (hdl) {
   }
 }
 
-/** Convert any to bool safely */
-exports.bool = function bool (x) {
-  return (x === 1 || x === '1' || x === true || x === 'true')
-}
-
 /** Decode number from 2B encoding */
 exports.parse2B = function parse2B (s, i = 0) {
   return (s.charCodeAt(i++) - 1) + (s.charCodeAt(i) - 1) * 127

js/wifi.js

@@ -1,9 +1,11 @@
 const $ = require('./lib/chibi')
-const { mk, bool } = require('./utils')
+const { mk } = require('./utils')
 const tr = require('./lang')
 
-;(function (w) {
+{
-  const authStr = ['Open', 'WEP', 'WPA', 'WPA2', 'WPA/WPA2']
+  const w = window.WiFi = {}
+
+  const authTypes = ['Open', 'WEP', 'WPA', 'WPA2', 'WPA/WPA2']
   let curSSID
 
   // Get XX % for a slider input
@@ -20,9 +22,13 @@ const tr = require('./lang')
     $('#sta-nw-nil').toggleClass('hidden', name.length > 0)
 
     $('#sta-nw .essid').html($.htmlEscape(name))
-    const nopw = !password || password.length === 0
+    const hasPassword = !!password
-    $('#sta-nw .passwd').toggleClass('hidden', nopw)
+
-    $('#sta-nw .nopasswd').toggleClass('hidden', !nopw)
+    // (the following is kind of confusing with the double-double negations,
+    // but it works)
+    $('#sta-nw .passwd').toggleClass('hidden', !hasPassword)
+    $('#sta-nw .nopasswd').toggleClass('hidden', hasPassword)
+
     $('#sta-nw .ip').html(ip.length > 0 ? tr('wifi.connected_ip_is') + ip : tr('wifi.not_conn'))
   }
 
@@ -40,7 +46,7 @@ const tr = require('./lang')
 
     if (status !== 200) {
       // bad response
-      rescan(5000) // wait 5sm then retry
+      rescan(5000) // wait 5s then retry
       return
     }
 
@@ -52,7 +58,7 @@ const tr = require('./lang')
       return
     }
 
-    const done = !bool(resp.result.inProgress) && (resp.result.APs.length > 0)
+    const done = !resp.result.inProgress && resp.result.APs.length > 0
     rescan(done ? 15000 : 1000)
     if (!done) return // no redraw yet
 
@@ -65,9 +71,7 @@ const tr = require('./lang')
     $('#ap-loader').toggleClass('hidden', done)
 
     // scan done
-    resp.result.APs.sort(function (a, b) {
+    resp.result.APs.sort((a, b) => b.rssi - a.rssi).forEach(function (ap) {
-      return b.rssi - a.rssi
-    }).forEach(function (ap) {
       ap.enc = parseInt(ap.enc)
 
       if (ap.enc > 4) return // hide unsupported auths
@@ -90,7 +94,7 @@ const tr = require('./lang')
       $(inner).addClass('inner')
         .htmlAppend(`<div class="rssi">${ap.rssi_perc}</div>`)
         .htmlAppend(`<div class="essid" title="${escapedSSID}">${escapedSSID}</div>`)
-        .htmlAppend(`<div class="auth">${authStr[ap.enc]}</div>`)
+        .htmlAppend(`<div class="auth">${authTypes[ap.enc]}</div>`)
 
       $item.on('click', function () {
         let $th = $(this)
@@ -164,4 +168,4 @@ const tr = require('./lang')
 
   w.init = wifiInit
   w.startScanning = startScanning
-})(window.WiFi = {})
+}

lang/_js-dump.php

@@ -0,0 +1,14 @@
+#! /usr/bin/env php
+<?php
+
+require_once __DIR__ . '/../base.php';
+
+$selected = array_slice($argv, 1);
+
+$output = [];
+
+foreach ($selected as $key) {
+  $output[$key] = tr($key);
+}
+
+fwrite(STDOUT, json_encode($output, JSON_UNESCAPED_UNICODE));

lang/_js-lang-loader.js

@@ -0,0 +1,54 @@
+/*
+ * This is a Webpack loader that loads the language data by running
+ * dump_selected.php.
+ */
+
+const { spawnSync } = require('child_process')
+const path = require('path')
+const selectedKeys = require('./js-keys')
+
+module.exports = function (source) {
+  let child = spawnSync(path.resolve(__dirname, '_js-dump.php'), selectedKeys, {
+    timeout: 1000
+  })
+
+  let data
+  try {
+    data = JSON.parse(child.stdout.toString().trim())
+  } catch (err) {
+    console.error(`\x1b[31;1m[lang-loader] Failed to parse JSON:`)
+    console.error(child.stdout.toString().trim())
+    console.error(`\x1b[m`)
+
+    if (err) throw err
+  }
+
+  // adapted from webpack/loader-utils
+  let remainingRequest = this.remainingRequest
+  if (!remainingRequest) {
+    remainingRequest = this.loaders.slice(this.loaderIndex + 1)
+      .map(obj => obj.request)
+      .concat([this.resource]).join('!')
+  }
+
+  let currentRequest = this.currentRequest
+  if (!currentRequest) {
+    remainingRequest = this.loaders.slice(this.loaderIndex)
+      .map(obj => obj.request)
+      .concat([this.resource]).join('!')
+  }
+
+  let map = {
+    version: 3,
+    file: currentRequest,
+    sourceRoot: '',
+    sources: [remainingRequest],
+    sourcesContent: [source],
+    names: [],
+    mappings: 'AAAA;AAAA'
+  }
+
+  this.callback(null,
+    `/* Generated language file */\n` +
+    `module.exports=${JSON.stringify(data)}\n`, map)
+}

lang/common.php

@@ -0,0 +1,19 @@
+<?php
+
+return [
+	'appname' => 'ESPTerm',
+	'appname_demo' => 'ESPTerm<sup> DEMO</sup>',
+
+	// not used - api etc. Added to suppress warnings
+	'menu.term_set' => '',
+	'menu.wifi_connstatus' => '',
+	'menu.wifi_set' => '',
+	'menu.wifi_scan' => '',
+	'menu.network_set' => '',
+	'menu.system_set' => '',
+	'menu.write_defaults' => '',
+	'menu.restore_defaults' => '',
+	'menu.restore_hard' => '',
+	'menu.reset_screen' => '',
+	'menu.index' => '',
+];

lang/cs.php

@@ -0,0 +1,271 @@
+<?php
+
+return [
+	'menu.cfg_wifi' => 'Nastavení WiFi',
+	'menu.cfg_network' => 'Nastavení sítě',
+	'menu.cfg_term' => 'Nastavení terminalu',
+	'menu.about' => 'About',
+	'menu.help' => 'Nápověda',
+	'menu.term' => 'Zpět k terminálu',
+	'menu.cfg_system' => 'Nastavení systému',
+	'menu.cfg_wifi_conn' => 'Připojování',
+	'menu.settings' => 'Nastavení',
+
+	// Terminal page
+
+	'title.term' => 'Terminál', // page title of the terminal page
+
+	'term_nav.fullscreen' => 'Celá obr.',
+	'term_nav.config' => 'Nastavení',
+	'term_nav.wifi' => 'WiFi',
+	'term_nav.help' => 'Nápověda',
+	'term_nav.about' => 'About',
+	'term_nav.paste' => 'Vložit',
+	'term_nav.upload' => 'Nahrát',
+	'term_nav.keybd' => 'Klávesnice',
+	'term_nav.paste_prompt' => 'Vložte text k~odeslání:',
+
+	'term_conn.connecting' => 'Připojuji se',
+	'term_conn.waiting_content' => 'Čekám na data',
+	'term_conn.disconnected' => 'Odpojen',
+	'term_conn.waiting_server' => 'Čekám na server',
+	'term_conn.reconnecting' => 'Obnova spojení',
+
+	// Terminal settings page
+
+	'term.defaults' => 'Výchozí nastavení',
+	'term.expert' => 'Pokročilé volby',
+	'term.explain_initials' => '
+		Tato nastavení jsou použita po spuštění a při resetu obrazovky
+		(příkaz RIS, <code>\ec</code>). Tyto volby lze měnit za běhu 
+		pomocí řídicích sekvencí.
+		',
+	'term.explain_expert' => '
+		Interní parametry terminálu. Změnou časování lze dosáhnout kratší
+		latence a~rychlejšího překreslování, hodnoty záleží na konkrétní 
+		aplikaci. Timeout parseru je čas do automatického zrušení započaté 
+		řídicí sekvence.',
+
+	'term.example' => 'Náhled výchozích barev',
+
+	'term.explain_scheme' => '
+		Výchozí barvu textu a pozadí vyberete kliknutím na barvy v~paletě.
+		Dále lze použít ANSI barvy 0-255 a hex ve formátu #FFFFFF.
+		',
+
+	'term.fgbg_presets' => 'Předvolby výchozích<br>barev textu a pozadí',
+	'term.color_scheme' => 'Barevné schéma',
+	'term.reset_screen' => 'Resetovat obrazovku a parser',
+	'term.term_title' => 'Nadpis',
+	'term.term_width' => 'Šířka',
+	'term.term_height' => 'Výška',
+	'term.buttons' => 'Text tlačítke',
+	'term.theme' => 'Barevná paleta',
+	'term.cursor_shape' => 'Styl kurzoru',
+	'term.parser_tout_ms' => 'Timeout parseru',
+	'term.display_tout_ms' => 'Prodleva překreslení',
+	'term.display_cooldown_ms' => 'Min. čas překreslení',
+	'term.allow_decopt_12' => 'Povolit \e?12h/l',
+	'term.fn_alt_mode' => 'SS3 Fx klávesy',
+	'term.show_config_links' => 'Menu pod obrazovkou',
+	'term.show_buttons' => 'Zobrazit tlačítka',
+	'term.loopback' => 'Loopback (<span style="text-decoration:overline">SRM</span>)',
+	'term.crlf_mode' => 'Enter = CR+LF (LNM)',
+	'term.want_all_fn' => 'Zachytávat F5, F11, F12',
+	'term.button_msgs' => 'Reporty tlačítek<br>(dek. ASCII CSV)',
+	'term.color_fg' => 'Výchozí text',
+	'term.color_bg' => 'Výchozí pozadí',
+	'term.color_fg_prev' => 'Barva textu',
+	'term.color_bg_prev' => 'Barva pozadí',
+	'term.colors_preview' => '',
+//	'term.debugbar' => 'Ladění ',
+//	'term.ascii_debug' => 'Použít debug parser',
+
+	'cursor.block_blink' => 'Blok, blikající',
+    'cursor.block_steady' => 'Blok, stálý',
+    'cursor.underline_blink' => 'Podtržítko, blikající',
+    'cursor.underline_steady' => 'Podtržítko, stálé',
+    'cursor.bar_blink' => 'Svislice, blikající',
+    'cursor.bar_steady' => 'Svislice, stálá',
+
+	// Text upload dialog
+
+	'upload.title' => 'Upload textu',
+	'upload.prompt' => 'Načíst ze souboru:',
+	'upload.endings' => 'Konce řádku:',
+	'upload.endings.cr' => 'CR (klávesa Enter)',
+	'upload.endings.crlf' => 'CR LF (Windows)',
+	'upload.endings.lf' => 'LF (Linux)',
+	'upload.chunk_delay' => 'Prodleva (ms):',
+	'upload.chunk_size' => 'Délka úseku (0=řádek):',
+	'upload.progress' => 'Proběh:',
+
+	// Network config page
+
+	'net.explain_sta' => '
+		Odškrtněte "Použít dynamickou IP" pro nastavení statické IP adresy.',
+
+	'net.explain_ap' => '
+		Tato nastavení ovlivňují interní DHCP server v AP režimu (hotspot).',
+
+	'net.ap_dhcp_time' => 'Doba zapůjčení adresy',
+	'net.ap_dhcp_start' => 'Začátek IP poolu',
+	'net.ap_dhcp_end' => 'Konec IP poolu',
+	'net.ap_addr_ip' => 'Vlastní IP adresa',
+	'net.ap_addr_mask' => 'Maska podsítě',
+
+	'net.sta_dhcp_enable' => 'Použít dynamickou IP',
+	'net.sta_addr_ip' => 'Statická IP modulu',
+	'net.sta_addr_mask' => 'Maska podsítě',
+	'net.sta_addr_gw' => 'Gateway',
+
+	'net.ap' => 'DHCP server (AP)',
+	'net.sta' => 'DHCP klient',
+	'net.sta_mac' => 'MAC adresa klienta',
+	'net.ap_mac' => 'MAC adresa AP',
+	'net.details' => 'MAC adresy',
+
+	// Wifi config page
+
+	'wifi.ap' => 'WiFi hotspot',
+	'wifi.sta' => 'Připojení k~externí síti',
+
+	'wifi.enable' => 'Zapnuto',
+	'wifi.tpw' => 'Vysílací výkon',
+	'wifi.ap_channel' => 'WiFi kanál',
+	'wifi.ap_ssid' => 'Jméno hotspotu',
+	'wifi.ap_password' => 'Přístupové heslo',
+	'wifi.ap_hidden' => 'Skrýt síť',
+	'wifi.sta_info' => 'Zvolená síť',
+
+	'wifi.not_conn' => 'Nepřipojen.',
+	'wifi.sta_none' => 'Žádná',
+	'wifi.sta_active_pw' => '🔒 Uložené heslo',
+	'wifi.sta_active_nopw' => '🔓 Bez hesla',
+	'wifi.connected_ip_is' => 'Připojen, IP: ',
+	'wifi.sta_password' => 'Heslo:',
+
+	'wifi.scanning' => 'Hledám sítě',
+	'wifi.scan_now' => 'Klikněte pro vyhledání sítí!',
+	'wifi.cant_scan_no_sta' => 'Klikněte pro zapnutí režimu klienta a vyhledání sítí!',
+	'wifi.select_ssid' => 'Dostupné sítě:',
+	'wifi.enter_passwd' => 'Zadejte heslo pro ":ssid:"',
+	'wifi.sta_explain' => 'Vyberte síť a připojte se tlačítkem vpravo nahoře.',
+
+	// Wifi connecting status page
+
+	'wificonn.status' => 'Stav:',
+	'wificonn.back_to_config' => 'Zpět k~nastavení WiFi',
+	'wificonn.telemetry_lost' => 'Spojení bylo přerušeno; připojování selhalo, nebo jste byli odpojeni od sítě.',
+	'wificonn.explain_android_sucks' => '
+		Pokud ESPTerm konfigurujete pomocí mobilu nebo z~externí sítě, může se stát
+		že některé ze zařízení změní síť a~ukazatel průběhu přestane fungovat. 
+		Počkejte ~15s a pak zkontrolujte, zda se připojení zdařilo.
+		',
+
+	'wificonn.explain_reset' => '
+		Interní hotspot lze kdykoliv vynutit podržením tlačítka BOOT, až modrá LED začne blikat.
+		Podržíte-li tlačítko déle (LED začne blikat rychleji), dojde k~obnovení do výchozích anstavení.',
+
+	'wificonn.disabled' => "Režim klienta není povolen.",
+	'wificonn.idle' => "Žádná IP adresa, připojování neprobíhá.",
+	'wificonn.success' => "Připijen! IP adresa je ",
+	'wificonn.working' => "Připojuji k zvolené síti",
+	'wificonn.fail' => "Připojení selhalo, zkontrolujte nastavení a~pokus opakujte. Důvod: ",
+
+	// Access restrictions form
+
+	'pwlock.title' => 'Omezení přístupu',
+	'pwlock.explain' => '
+		Části webového rozhraní lze chránit heslem. Nemáte-li v úmyslu heslo měnit, 
+		do jeho políčka nic nevyplňujte.<br>
+		Výchozí přístupové heslo je "%def_access_pw%".
+	',
+	'pwlock.region' => 'Chránit heslem',
+	'pwlock.region.none' => 'Nic, vše volně přístupné',
+	'pwlock.region.settings_noterm' => 'Nastavení, mimo terminál',
+	'pwlock.region.settings' => 'Všechna nastavení',
+	'pwlock.region.menus' => 'Celá admin. sekce',
+	'pwlock.region.all' => 'Vše, včetně terminálu',
+	'pwlock.new_access_pw' => 'Nové přístupové heslo',
+	'pwlock.new_access_pw2' => 'Zopakujte nové heslo',
+	'pwlock.admin_pw' => 'Systémové heslo',
+	'pwlock.access_name' => 'Uživatelské jméno',
+
+	// Setting admin password
+
+	'adminpw.title' => 'Změna systémového hesla',
+	'adminpw.explain' =>
+		'
+		Systémové heslo slouží k úpravám uložených výchozích nastavení
+		a ke změně přístupových oprávnění.
+		Toto heslo je uloženo mimo ostatní data, obnovení do výchozách nastavení
+		na něj nemá vliv.
+		Toto heslo nelze jednoduše obnovit, v případě zapomenutí vymažte flash paměť a obnovte firmware.<br>
+		Vychozí systémové heslo je "%def_admin_pw%".
+		',
+	'adminpw.new_admin_pw' => 'Nové systémové heslo',
+	'adminpw.new_admin_pw2' => 'Zopakujte nové heslo',
+	'adminpw.old_admin_pw' => 'Původní systémové heslo',
+
+	// Persist form
+
+	'persist.title' => 'Záloha a~obnovení konfigurace',
+	'persist.explain' => '
+		Všechna nastavení jsou ukládána do flash paměti. V~paměti jsou
+		vyhrazené dva oddíly, aktivní nastavení a záloha. Zálohu lze přepsat
+		za použití systémového hesla, původní nastavení z ní pak můžete kdykoliv obnovit.
+		Pro obnovení ze zálohy stačí podržet tlačítko BOOT, až modrá LED začne rychle blikat.
+		',
+	'persist.confirm_restore' => 'Chcete obnovit všechna nastavení?',
+	'persist.confirm_restore_hard' =>
+		'Opravdu chcete načíst tovární nastavení? Všechna nastavení kromě zálohy a systémového hesla
+		 budou přepsána, včetně nastavení WiFi!',
+	'persist.confirm_store_defaults' =>
+		'Zadejte systémové heslo pro přepsání zálohy aktuálními parametry.',
+	'persist.password' => 'Systémové heslo:',
+	'persist.restore_defaults' => 'Obnovit ze zálohy',
+	'persist.write_defaults' => 'Zálohovat aktuální nastavení',
+	'persist.restore_hard' => 'Načíst tovární nastavení',
+	'persist.restore_hard_explain' =>
+		'(Tímto vymažete nastavení WiFi! Záloha a systémové heslo zůstanou beze změny.)',
+
+	// UART settings form
+
+	'uart.title' => 'Sériový port',
+	'uart.explain' => '
+		Tímto formulářem můžete upravit nastavení komunikačního UARTu. 
+		Ladicí výpisy jsou na pinu P2 s~pevnými parametry: 115200 baud, 1 stop bit, žádná parita. 
+		',
+	'uart.baud' => 'Rychlost',
+	'uart.parity' => 'Parita',
+	'uart.parity.none' => 'Źádná',
+	'uart.parity.odd' => 'Lichá',
+	'uart.parity.even' => 'Sudá',
+	'uart.stop_bits' => 'Stop-bity',
+	'uart.stop_bits.one' => '1',
+	'uart.stop_bits.one_and_half' => '1.5',
+	'uart.stop_bits.two' => '2',
+
+	// HW tuning form
+
+	'hwtuning.title' => 'Tuning hardwaru',
+	'hwtuning.explain' => '
+		ESP8266 lze přetaktovat z~80~MHz na 160~MHz. Vyšší rychlost umožní rychlejší překreslování
+		obrazovky a stránky se budou načítat rychleji. Nevýhodou je vyšší spotřeba a citlivost k~rušení.
+		',
+	'hwtuning.overclock' => 'Přetaktovat na 160~MHz',
+
+	// Generic button / dialog labels
+
+	'apply' => 'Uložit!',
+	'start' => 'Start',
+	'cancel' => 'Zrušit',
+	'enabled' => 'Zapnuto',
+	'disabled' => 'Vypnuto',
+	'yes' => 'Ano',
+	'no' => 'Ne',
+	'confirm' => 'OK',
+	'copy' => 'Kopírovat',
+	'form_errors' => 'Neplatné hodnoty:',
+];

lang/de.php

@@ -0,0 +1,270 @@
+<?php
+
+return [
+	'menu.cfg_wifi' => 'WLAN-Einstellungen',
+	'menu.cfg_network' => 'Netzwerkeinstellungen',
+	'menu.cfg_term' => 'Terminaleinstellungen',
+	'menu.about' => 'Über ESPTerm',
+	'menu.help' => 'Schnellreferenz',
+	'menu.term' => 'Zurück zum Terminal',
+	'menu.cfg_system' => 'Systemeinstellungen',
+	'menu.cfg_wifi_conn' => 'Verbinden mit dem Netzwerk',
+	'menu.settings' => 'Einstellungen',
+
+	// Terminal page
+
+	'title.term' => 'Terminal', // page title of the terminal page
+
+	'term_nav.fullscreen' => 'Vollbild',
+	'term_nav.config' => 'Konfiguration',
+	'term_nav.wifi' => 'WLAN',
+	'term_nav.help' => 'Hilfe',
+	'term_nav.about' => 'Info',
+	'term_nav.paste' => 'Einfügen',
+	'term_nav.upload' => 'Hochladen',
+	'term_nav.keybd' => 'Tastatur',
+	'term_nav.paste_prompt' => 'Text einfügen zum Versenden:',
+
+	'term_conn.connecting' => 'Verbinden',
+	'term_conn.waiting_content' => 'Warten auf Inhalt',
+	'term_conn.disconnected' => 'Nicht verbunden',
+	'term_conn.waiting_server' => 'Warten auf Server',
+	'term_conn.reconnecting' => 'Verbinden',
+
+	// Terminal settings page
+
+	'term.defaults' => 'Anfangseinstellungen',
+	'term.expert' => 'Expertenoptionen',
+	'term.explain_initials' => '
+		Dies sind die Anfangseinstellungen, die benutzt werden, nachdem ESPTerm startet,
+		oder wenn der Bildschirm mit dem <code>\ec</code>-Kommando zurückgesetzt wird.
+		Sie können durch Escape-Sequenzen verändert werden.
+		',
+	'term.explain_expert' => '
+		Dies sind erweiterte Konfigurationsoptionen, die meistens nicht verändert
+		werden müssen. Bearbeite sie nur, wenn du weißt, was du tust.',
+
+	'term.example' => 'Standardfarbenvorschau',
+
+	'term.explain_scheme' => '
+		Um die Standardtextfarbe und Standardhintergrundfarbe auszuwählen, klicke auf
+		die Vorschaupalette, oder benutze die Zahlen 0-15 für die Themafarben, 16-255
+		für Standardfarben, oder Hexadezimal (#FFFFFF) für True Color (24-bit).
+		',
+
+	'term.fgbg_presets' => 'Voreinstellungen',
+	'term.color_scheme' => 'Farbschema',
+	'term.reset_screen' => 'Bildschirm & Parser zurücksetzen',
+	'term.term_title' => 'Titeltext',
+	'term.term_width' => 'Breite',
+	'term.term_height' => 'Höhe',
+	'term.buttons' => 'Tastentext',
+	'term.theme' => 'Farbthema',
+	'term.cursor_shape' => 'Cursorstil',
+	'term.parser_tout_ms' => 'Parser-Auszeit',
+	'term.display_tout_ms' => 'Zeichenverzögerung',
+	'term.display_cooldown_ms' => 'Zeichenabkühlzeit',
+	'term.allow_decopt_12' => '\e?12h/l erlauben',
+	'term.fn_alt_mode' => 'SS3 Fn-Tasten',
+	'term.show_config_links' => 'Links anzeigen',
+	'term.show_buttons' => 'Tasten anzeigen',
+	'term.loopback' => 'Lokales Echo (<span style="text-decoration:overline">SRM</span>)',
+	'term.crlf_mode' => 'Enter = CR+LF (LNM)',
+	'term.want_all_fn' => 'F5, F11, F12 erfassen',
+	'term.button_msgs' => 'Tastencodes<br>(ASCII, dec, CSV)',
+	'term.color_fg' => 'Standardvordergr.',
+	'term.color_bg' => 'Standardhintergr.',
+	'term.color_fg_prev' => 'Vordergrund',
+	'term.color_bg_prev' => 'Hintergrund',
+	'term.colors_preview' => '',
+	'term.debugbar' => 'Debug-Leiste anzeigen',
+	'term.ascii_debug' => 'Kontrollcodes anzeigen',
+
+	'cursor.block_blink' => 'Block, blinkend',
+		'cursor.block_steady' => 'Block, ruhig',
+		'cursor.underline_blink' => 'Unterstrich, blinkend',
+		'cursor.underline_steady' => 'Unterstrich, ruhig',
+		'cursor.bar_blink' => 'Balken, blinkend',
+		'cursor.bar_steady' => 'Balken, ruhig',
+
+	// Text upload dialog
+
+	'upload.title' => 'Text Hochladen',
+	'upload.prompt' => 'Eine Textdatei laden:',
+	'upload.endings' => 'Zeilenumbruch:',
+	'upload.endings.cr' => 'CR (Enter-Taste)',
+	'upload.endings.crlf' => 'CR LF (Windows)',
+	'upload.endings.lf' => 'LF (Linux)',
+	'upload.chunk_delay' => 'Datenblockverzögerung (ms):',
+	'upload.chunk_size' => 'Datenblockgröße (0=Linie):',
+	'upload.progress' => 'Hochladen:',
+
+	// Network config page
+
+	'net.explain_sta' => '
+		Schalte Dynamische IP aus um die statische IP-Addresse zu konfigurieren.',
+
+	'net.explain_ap' => '
+		Diese Einstellungen beeinflussen den eingebauten DHCP-Server im AP-Modus.',
+
+	'net.ap_dhcp_time' => 'Leasezeit',
+	'net.ap_dhcp_start' => 'Pool Start-IP',
+	'net.ap_dhcp_end' => 'Pool End-IP',
+	'net.ap_addr_ip' => 'Eigene IP-Addresse',
+	'net.ap_addr_mask' => 'Subnet-Maske',
+
+	'net.sta_dhcp_enable' => 'Dynamische IP',
+	'net.sta_addr_ip' => 'ESPTerm statische IP',
+	'net.sta_addr_mask' => 'Subnet-Maske',
+	'net.sta_addr_gw' => 'Gateway-IP',
+
+	'net.ap' => 'DHCP Server (AP)',
+	'net.sta' => 'DHCP Client (Station)',
+	'net.sta_mac' => 'Station MAC',
+	'net.ap_mac' => 'AP MAC',
+	'net.details' => 'MAC-Addressen',
+
+	// Wifi config page
+
+	'wifi.ap' => 'Eingebauter Access Point',
+	'wifi.sta' => 'Bestehendes Netzwerk beitreten',
+
+	'wifi.enable' => 'Aktiviert',
+	'wifi.tpw' => 'Sendeleistung',
+	'wifi.ap_channel' => 'Kanal',
+	'wifi.ap_ssid' => 'AP SSID',
+	'wifi.ap_password' => 'Passwort',
+	'wifi.ap_hidden' => 'SSID verbergen',
+	'wifi.sta_info' => 'Ausgewählt',
+
+	'wifi.not_conn' => 'Nicht verbunden.',
+	'wifi.sta_none' => 'Keine',
+	'wifi.sta_active_pw' => '🔒 Passwort gespeichert',
+	'wifi.sta_active_nopw' => '🔓 Offen',
+	'wifi.connected_ip_is' => 'Verbunden, IP ist ',
+	'wifi.sta_password' => 'Passwort:',
+
+	'wifi.scanning' => 'Scannen',
+	'wifi.scan_now' => 'Klicke hier um zu scannen!',
+	'wifi.cant_scan_no_sta' => 'Klicke hier um Client-Modus zu aktivieren und zu scannen!',
+	'wifi.select_ssid' => 'Verfügbare Netzwerke:',
+	'wifi.enter_passwd' => 'Passwort für ":ssid:"',
+	'wifi.sta_explain' =>
+		'Nach dem Auswählen eines Netzwerks, drücke Bestätigen, um dich zu verbinden.',
+
+	// Wifi connecting status page
+
+	'wificonn.status' => 'Status:',
+	'wificonn.back_to_config' => 'Zurück zur WLAN-Konfiguration',
+	'wificonn.telemetry_lost' => 'Telemetrie verloren; etwas lief schief, oder dein Gerät wurde getrennt.',
+	'wificonn.explain_android_sucks' => '
+		Wenn du gerade ESPTerm mit einem Handy oder über ein anderes externes Netzwerk
+		konfigurierst, kann dein Gerät die Verbindung verlieren und diese Fortschrittsanzeige
+		wird nicht funktionieren. Bitte warte eine Weile (etwa 15 Sekunden) und prüfe dann,
+		ob die Verbindung gelangen ist.',
+
+	'wificonn.explain_reset' => '
+		Um den eingebauten AP zur Aktivierung zu zwingen, halte den BOOT-Knopf gedrückt bis die
+		blaue LED beginnt, zu blinken. Halte ihn länger gedrückt (bis die LED schnell blinkt)
+		um eine "Werksrückstellung" zu vollziehen.',
+
+	'wificonn.disabled' => "Stationsmodus ist deaktiviert.",
+	'wificonn.idle' => "Nicht verbunden und ohne IP.",
+	'wificonn.success' => "Verbunden! Empfangene IP: ",
+	'wificonn.working' => "Verbinden mit dem ausgewählten AP",
+	'wificonn.fail' => "Verbindung fehlgeschlagen; prüfe die Einstellungen und versuche es erneut. Grund: ",
+
+	// Access restrictions form
+
+	'pwlock.title' => 'Zugriffsbeschränkungen',
+	'pwlock.explain' => '
+		Manche, oder alle Teile des Web-Interface können mit einem Passwort geschützt werden.
+		Lass die Passwortfelder leer wenn du es sie verändern möchtest.<br>
+		Das voreingestellte Passwort ist "%def_access_pw%".',
+	'pwlock.region' => 'Geschützte Seiten',
+	'pwlock.region.none' => 'Keine, alles offen',
+	'pwlock.region.settings_noterm' => 'WLAN-, Netzwerk- & Systemeinstellungen',
+	'pwlock.region.settings' => 'Alle Einstellungsseiten',
+	'pwlock.region.menus' => 'Dieser ganze Menüabschnitt',
+	'pwlock.region.all' => 'Alles, sogar das Terminal',
+	'pwlock.new_access_pw' => 'Neues Passwort',
+	'pwlock.new_access_pw2' => 'Wiederholen',
+	'pwlock.admin_pw' => 'Systempasswort',
+	'pwlock.access_name' => 'Benutzername',
+
+	// Setting admin password
+
+	'adminpw.title' => 'Systempasswort ändern',
+	'adminpw.explain' =>'
+		Das "Systempasswort" wird benutzt, um die gespeicherten Standardeinstellungen
+		und die Zugriffsbeschränkungen zu verändern. Dieses Passwort wird nicht als Teil
+		der Hauptkonfiguration gespeichert, d.h. Speichern / Wiederherstellen wird das
+		Passwort nicht beeinflussen. Wenn das Systempasswort vergessen wird, ist
+		die einfachste Weise, wieder Zugriff zu erhalten, ein Re-flash des Chips.<br>
+		Das voreingestellte Systempasswort ist "%def_admin_pw%".
+		',
+	'adminpw.new_admin_pw' => 'Neues Systempasswort',
+	'adminpw.new_admin_pw2' => 'Wiederholen',
+	'adminpw.old_admin_pw' => 'Altes Systempasswort',
+
+	// Persist form
+
+	'persist.title' => 'Speichern & Wiederherstellen',
+	'persist.explain' => '
+		ESPTerm speichert alle Einstellungen im Flash-Speicher. Die aktiven Einstellungen
+		können in den “Voreinstellungsbereich” kopiert werden und später wiederhergestellt
+		werden mit der Taste unten.',
+	'persist.confirm_restore' => 'Alle Einstellungen zu den Voreinstellungen zurücksetzen?',
+	'persist.confirm_restore_hard' => '
+		Zurücksetzen zu den Firmware-Voreinstellungen? Dies wird alle aktiven
+		Einstellungen zürucksetzen und den AP-Modus aktivieren mit der Standard-SSID.',
+	'persist.confirm_store_defaults' =>
+		'Systempasswort eingeben um Voreinstellungen zu überschreiben',
+	'persist.password' => 'Systempasswort:',
+	'persist.restore_defaults' => 'Zu gespeicherten Voreinstellungen zurücksetzen',
+	'persist.write_defaults' => 'Aktive Einstellungen als Voreinstellungen speichern',
+	'persist.restore_hard' => 'Aktive Einstellungen zu Werkseinstellungen zurücksetzen',
+	'persist.restore_hard_explain' => '
+		(Dies löscht die WLAN-Konfiguration! Beeinflusst die gespeicherten Voreinstellungen
+		oder das Systempasswort nicht.)',
+
+	// UART settings form
+
+	'uart.title' => 'Serieller Port Parameter',
+	'uart.explain' => '
+		Dies steuert den Kommunikations-UART. Der Debug-UART ist auf 115.200 baud fest
+		eingestellt mit einem Stop-Bit und keiner Parität.
+		',
+	'uart.baud' => 'Baudrate',
+	'uart.parity' => 'Parität',
+	'uart.parity.none' => 'Keine',
+	'uart.parity.odd' => 'Ungerade',
+	'uart.parity.even' => 'Gerade',
+	'uart.stop_bits' => 'Stop-Bits',
+	'uart.stop_bits.one' => 'Eins',
+	'uart.stop_bits.one_and_half' => 'Eineinhalb',
+	'uart.stop_bits.two' => 'Zwei',
+
+	// HW tuning form
+
+	'hwtuning.title' => 'Hardware-Tuning',
+	'hwtuning.explain' => '
+		ESP8266 kann übertaktet werden von 80&nbsp;MHz auf 160&nbsp;MHz.
+		Alles wird etwas schneller sein, aber mit höherem Stromverbrauch,
+		und eventuell auch mit höherer Interferenz. Mit Sorgfalt benutzen.
+		',
+	'hwtuning.overclock' => 'Übertakten',
+
+	// Generic button / dialog labels
+
+	'apply' => 'Bestätigen!',
+	'start' => 'Starten',
+	'cancel' => 'Abbrechen',
+	'enabled' => 'Aktiviert',
+	'disabled' => 'Deaktiviert',
+	'yes' => 'Ja',
+	'no' => 'Nein',
+	'confirm' => 'OK',
+	'copy' => 'Kopieren',
+	'form_errors' => 'Gültigkeitsfehler für:',
+];

lang/en.php

@@ -1,9 +1,6 @@
 <?php
 
 return [
-	'appname' => 'ESPTerm',
-	'appname_demo' => 'ESPTerm<sup> DEMO</sup>',
-
 	'menu.cfg_wifi' => 'WiFi Settings',
 	'menu.cfg_network' => 'Network Settings',
 	'menu.cfg_term' => 'Terminal Settings',
@@ -14,23 +11,11 @@ return [
 	'menu.cfg_wifi_conn' => 'Connecting to Network',
 	'menu.settings' => 'Settings',
 
-	// not used - api etc. Added to suppress warnings
-	'menu.term_set' => '',
-	'menu.wifi_connstatus' => '',
-	'menu.wifi_set' => '',
-	'menu.wifi_scan' => '',
-	'menu.network_set' => '',
-	'menu.system_set' => '',
-	'menu.write_defaults' => '',
-	'menu.restore_defaults' => '',
-	'menu.restore_hard' => '',
-	'menu.reset_screen' => '',
-	'menu.index' => '',
-
 	// Terminal page
 
 	'title.term' => 'Terminal', // page title of the terminal page
 
+	'term_nav.fullscreen' => 'Fullscreen',
 	'term_nav.config' => 'Config',
 	'term_nav.wifi' => 'WiFi',
 	'term_nav.help' => 'Help',
@@ -40,14 +25,20 @@ return [
 	'term_nav.keybd' => 'Keyboard',
 	'term_nav.paste_prompt' => 'Paste text to send:',
 
+	'term_conn.connecting' => 'Connecting',
+	'term_conn.waiting_content' => 'Waiting for content',
+	'term_conn.disconnected' => 'Disconnected',
+	'term_conn.waiting_server' => 'Waiting for server',
+	'term_conn.reconnecting' => 'Reconnecting',
+
 	// Terminal settings page
 
 	'term.defaults' => 'Initial Settings',
 	'term.expert' => 'Expert Options',
 	'term.explain_initials' => '
-		Those are the initial settings used after ESPTerm powers on, or when the screen
+		Those are the initial settings used after ESPTerm powers on, 
-		reset command is received (<code>\ec</code>). They can be changed by the 
+		or when the screen reset command is received (<code>\ec</code>).
-		terminal application using escape sequences.
+		They can be changed by the terminal application using escape sequences.
 		',
 	'term.explain_expert' => '
 		Those are advanced config options that usually don\'t need to be changed.
@@ -57,34 +48,37 @@ return [
 
 	'term.explain_scheme' => '
 		To select default text and background color, click on the
-		preview palette. Alternatively, use numbers 0-15 for theme colors, 16-255 for standard 
+		preview palette. Alternatively, use numbers 0-15 for theme colors,
-		colors and hex (#FFFFFF) for True Color (24-bit).
+		16-255 for standard colors and hex (#FFFFFF) for True Color (24-bit).
 		',
 
-	'term.fgbg_presets' => 'Presets',
+	'term.fgbg_presets' => 'Defaults Presets',
 	'term.color_scheme' => 'Color Scheme',
 	'term.reset_screen' => 'Reset screen & parser',
-	'term.term_title' => 'Header text',
+	'term.term_title' => 'Header Text',
 	'term.term_width' => 'Width',
 	'term.term_height' => 'Height',
-	'term.buttons' => 'Button labels',
+	'term.buttons' => 'Button Labels',
-	'term.theme' => 'Color palette',
+	'term.theme' => 'Color Palette',
-	'term.cursor_shape' => 'Cursor style',
+	'term.cursor_shape' => 'Cursor Style',
-	'term.parser_tout_ms' => 'Parser timeout',
+	'term.parser_tout_ms' => 'Parser Timeout',
-	'term.display_tout_ms' => 'Redraw delay',
+	'term.display_tout_ms' => 'Redraw Delay',
-	'term.display_cooldown_ms' => 'Redraw cooldown',
+	'term.display_cooldown_ms' => 'Redraw Cooldown',
+	'term.allow_decopt_12' => 'Allow \e?12h/l',
 	'term.fn_alt_mode' => 'SS3 Fn keys',
 	'term.show_config_links' => 'Show nav links',
 	'term.show_buttons' => 'Show buttons',
 	'term.loopback' => 'Local Echo (<span style="text-decoration:overline">SRM</span>)',
 	'term.crlf_mode' => 'Enter = CR+LF (LNM)',
-	'term.want_all_fn' => 'Capture all keys<br>(F5, F11, F12…)',
+	'term.want_all_fn' => 'Capture F5, F11, F12',
 	'term.button_msgs' => 'Button codes<br>(ASCII, dec, CSV)',
-	'term.color_fg' => 'Default fg.',
+	'term.color_fg' => 'Default Fg.',
-	'term.color_bg' => 'Default bg.',
+	'term.color_bg' => 'Default Bg.',
 	'term.color_fg_prev' => 'Foreground',
 	'term.color_bg_prev' => 'Background',
-	'term.colors_preview' => 'Defaults',
+	'term.colors_preview' => '',
+	'term.debugbar' => 'Debug internal state',
+	'term.ascii_debug' => 'Display control codes',
 
 	'cursor.block_blink' => 'Block, blinking',
     'cursor.block_steady' => 'Block, steady',
@@ -93,6 +87,18 @@ return [
     'cursor.bar_blink' => 'I-bar, blinking',
     'cursor.bar_steady' => 'I-bar, steady',
 
+	// Text upload dialog
+
+	'upload.title' => 'Text Upload',
+	'upload.prompt' => 'Load a text file:',
+	'upload.endings' => 'Line endings:',
+	'upload.endings.cr' => 'CR (Enter key)',
+	'upload.endings.crlf' => 'CR LF (Windows)',
+	'upload.endings.lf' => 'LF (Linux)',
+	'upload.chunk_delay' => 'Chunk delay (ms):',
+	'upload.chunk_size' => 'Chunk size (0=line):',
+	'upload.progress' => 'Upload:',
+
 	// Network config page
 
 	'net.explain_sta' => '
@@ -152,14 +158,14 @@ return [
 	'wificonn.telemetry_lost' => 'Telemetry lost; something went wrong, or your device disconnected.',
 	'wificonn.explain_android_sucks' => '
 		If you\'re configuring ESPTerm via a smartphone, or were connected 
-		from another external network, your device may lose connection and this 
+		from another external network, your device may lose connection and 
-		progress indicator won\'t work. Please wait a while (~ 15 seconds), 
+		this progress indicator won\'t work. Please wait a while (~ 15 seconds), 
 		then check if the connection succeeded.',
 
 	'wificonn.explain_reset' => '
-		To force enable the built-in AP, hold the BOOT 
+		To force enable the built-in AP, hold the BOOT button until the blue LED 
-		button until the blue LED starts flashing. Hold the button longer (until the LED 
+		starts flashing. Hold the button longer (until the LED flashes rapidly) 
-		flashes rapidly) for a "factory reset".',
+		for a "factory reset".',
 
 	'wificonn.disabled' =>"Station mode is disabled.",
 	'wificonn.idle' =>"Idle, not connected and has no IP.",
@@ -219,7 +225,8 @@ return [
 	'persist.restore_defaults' => 'Reset to saved defaults',
 	'persist.write_defaults' => 'Save active settings as defaults',
 	'persist.restore_hard' => 'Reset active settings to factory defaults',
-	'persist.restore_hard_explain' => '(This clears the WiFi config! Does not affect saved defaults or admin password.)',
+	'persist.restore_hard_explain' =>
+		'(This clears the WiFi config! Does not affect saved defaults or admin password.)',
 
 	// UART settings form
 
@@ -242,20 +249,23 @@ return [
 
 	'hwtuning.title' => 'Hardware Tuning',
 	'hwtuning.explain' => '
-		ESP8266 can be overclocked from 80&nbsp;MHz to 160&nbsp;MHz. 
+		ESP8266 can be overclocked from 80&nbsp;MHz to 160&nbsp;MHz. This will make 
-		This will make it more responsive and allow faster screen updates
+		it more responsive and allow faster screen updates at the expense of slightly 
-		at the expense of slightly higher power consumption. This can also make 
+		higher power consumption. This can also make it more susceptible to interference.
-		it more susceptible to interference. Use with care.
+		Use with care.
 		',
 	'hwtuning.overclock' => 'Overclock to 160MHz',
 
 	// Generic button / dialog labels
 
 	'apply' => 'Apply!',
+	'start' => 'Start',
+	'cancel' => 'Cancel',
 	'enabled' => 'Enabled',
 	'disabled' => 'Disabled',
 	'yes' => 'Yes',
 	'no' => 'No',
 	'confirm' => 'OK',
+	'copy' => 'Copy',
 	'form_errors' => 'Validation errors for:',
 ];

lang/js-keys.js

@@ -0,0 +1,12 @@
+// define language keys used by JS here
+module.exports = [
+  'wifi.connected_ip_is',
+  'wifi.not_conn',
+  'wifi.enter_passwd',
+  'term_nav.fullscreen',
+  'term_conn.connecting',
+  'term_conn.waiting_content',
+  'term_conn.disconnected',
+  'term_conn.waiting_server',
+  'term_conn.reconnecting'
+]

pages/_head.php

@@ -5,8 +5,8 @@
 	<meta http-equiv="X-UA-Compatible" content="IE=edge">
 	<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, maximum-scale=1">
 	<title><?= $_GET['PAGE_TITLE'] ?></title>
-	<link href="/css/app.<?= GIT_HASH ?>.css" rel="stylesheet">
+	<link href="/css/app.<?= GIT_HASH . '-' . LOCALE ?>.css" rel="stylesheet">
-	<script src="/js/app.<?= GIT_HASH ?>.js"></script>
+	<script src="/js/app.<?= GIT_HASH . '-' . LOCALE ?>.js"></script>
 	<script>
 		var _root = <?= JS_WEB_ROOT ?>;
 		var _demo = <?= (int)ESP_DEMO ?>;

pages/cfg_term.php

@@ -12,18 +12,22 @@
 
 	<div class="Row">
 		<label for="theme"><?= tr("term.theme") ?></label>
-		<select name="theme" id="theme" class="short" onchange="showColor()">
+		<select name="theme" id="theme">
 			<option value="0">Tango</option>
 			<option value="1">Linux (CGA)</option>
 			<option value="2">XTerm</option>
 			<option value="3">Rxvt</option>
 			<option value="4">Ambience</option>
-			<option value="5">Solarized</option>
+			<option value="5">Solarized Dark</option>
+			<option value="11">Solarized Dark, high contrast</option>
+			<option value="10">Solarized Light</option>
 			<option value="6">CGA NTSC</option>
 			<option value="7">ZX Spectrum</option>
 			<option value="8">Apple II</option>
 			<option value="9">Commodore</option>
 		</select>
+		<span onclick="TermConf.prevTheme()" class="mq-no-phone theme-nav-btn">◀</span>
+		<span onclick="TermConf.nextTheme()" class="mq-no-phone theme-nav-btn">▶</span>
 	</div>
 
 	<div class="Row color-preview">
@@ -57,25 +61,25 @@
 		<label><?= tr("term.color_fg_prev") ?></label>
 		<div>
 			<div class="colorprev fg">
-				<span data-fg=0 data-bg=0 style="text-shadow: 0 0 4px white;">0</span><!--
+				<span data-fg=0>0</span><!--
-				--><span data-fg=1 data-bg=0>1</span><!--
+				--><span data-fg=1>1</span><!--
-				--><span data-fg=2 data-bg=0>2</span><!--
+				--><span data-fg=2>2</span><!--
-				--><span data-fg=3 data-bg=0>3</span><!--
+				--><span data-fg=3>3</span><!--
-				--><span data-fg=4 data-bg=0>4</span><!--
+				--><span data-fg=4>4</span><!--
-				--><span data-fg=5 data-bg=0>5</span><!--
+				--><span data-fg=5>5</span><!--
-				--><span data-fg=6 data-bg=0>6</span><!--
+				--><span data-fg=6>6</span><!--
-				--><span data-fg=7 data-bg=0>7</span>
+				--><span data-fg=7>7</span>
 			</div>
 
 			<div class="colorprev fg">
-				<span data-fg=8 data-bg=0>8</span><!--
+				<span data-fg=8>8</span><!--
-				--><span data-fg=9 data-bg=0>9</span><!--
+				--><span data-fg=9>9</span><!--
-				--><span data-fg=10 data-bg=0>10</span><!--
+				--><span data-fg=10>10</span><!--
-				--><span data-fg=11 data-bg=0>11</span><!--
+				--><span data-fg=11>11</span><!--
-				--><span data-fg=12 data-bg=0>12</span><!--
+				--><span data-fg=12>12</span><!--
-				--><span data-fg=13 data-bg=0>13</span><!--
+				--><span data-fg=13>13</span><!--
-				--><span data-fg=14 data-bg=0>14</span><!--
+				--><span data-fg=14>14</span><!--
-				--><span data-fg=15 data-bg=0>15</span>
+				--><span data-fg=15>15</span>
 			</div>
 		</div>
 	</div>
@@ -266,6 +270,19 @@
 		<span class="mq-no-phone">&nbsp;ms</span>
 	</div>
 
+	<div class="Row checkbox" >
+		<label><?= tr('term.debugbar') ?></label><!--
+		--><span class="box" tabindex=0 role=checkbox></span>
+		<input type="hidden" id="debugbar" name="debugbar" value="%debugbar%">
+	</div>
+
+	<div class="Row checkbox" >
+		<label><?= tr('term.ascii_debug') ?></label><!--
+		--><span class="box" tabindex=0 role=checkbox></span>
+		<input type="hidden" id="ascii_debug" name="ascii_debug" value="%ascii_debug%">
+	</div>
+
+
 	<div class="Row checkbox" >
 		<label><?= tr('term.fn_alt_mode') ?></label><!--
 		--><span class="box" tabindex=0 role=checkbox></span>
@@ -284,72 +301,25 @@
 		<input type="hidden" id="show_config_links" name="show_config_links" value="%show_config_links%">
 	</div>
 
+	<div class="Row checkbox" >
+		<label><?= tr('term.allow_decopt_12') ?></label><!--
+		--><span class="box" tabindex=0 role=checkbox></span>
+		<input type="hidden" id="allow_decopt_12" name="allow_decopt_12" value="%allow_decopt_12%">
+	</div>
+
 	<div class="Row buttons">
 		<a class="button icn-ok" href="#" onclick="qs('#form-expert').submit()"><?= tr('apply') ?></a>
 	</div>
 </form>
 
 <script>
-	$('#cursor_shape').val(%cursor_shape%);
+  $.ready(function () {
-	$('#theme').val(%theme%);
+    $('#cursor_shape').val('%cursor_shape%');
-
+    $('#theme').val('%theme%');
-    $('#uart_baud').val(%uart_baud%);
+    $('#uart_baud').val('%uart_baud%');
-    $('#uart_parity').val(%uart_parity%);
+    $('#uart_parity').val('%uart_parity%');
-    $('#uart_stopbits').val(%uart_stopbits%);
+    $('#uart_stopbits').val('%uart_stopbits%');
-
+
-	function showColor() {
+    TermConf.init();
-		var ex = qs('.color-example');
-		var fg = $('#default_fg').val();
-		var bg = $('#default_bg').val();
-
-		if (/^\d+$/.test(fg)) fg = +fg;
-		else if (!/^#[\da-f]{6}$/i.test(fg)) {
-		  fg = 'black';
-		}
-
-		if (/^\d+$/.test(bg)) bg = +bg;
-		else if (!/^#[\da-f]{6}$/i.test(bg)) {
-		  bg = 'black';
-		}
-
-		ex.dataset.fg = fg;
-		ex.dataset.bg = bg;
-
-		themes.themePreview(+$('#theme').val())
-	}
-	showColor();
-
-	$('#default_fg').on('input', showColor)
-	$('#default_bg').on('input', showColor)
-
-	$('.colorprev.bg span').on('click', function() {
-		var bg = this.dataset.bg;
-		if (typeof bg != 'undefined') $('#default_bg').val(bg);
-		showColor()
-	});
-
-	$('.colorprev.fg span').on('click', function() {
-		var fg = this.dataset.fg;
-		if (typeof fg != 'undefined') $('#default_fg').val(fg);
-		showColor()
-	});
-
-	var $presets = $('#fgbg_presets');
-	for(var i = 0; i < themes.fgbgThemes.length; i++) {
-	  fg = themes.fgbgThemes[i][0];
-	  bg = themes.fgbgThemes[i][1];
-      $presets
-        .htmlAppend(
-          '<span class="preset" ' +
-          'data-xfg="'+fg+'" data-xbg="'+bg+'" ' +
-          'style="color:'+fg+';background:'+bg+'">&nbsp;['+i+']&nbsp;</span>');
-
-	  if ((i+1)%5==0) $presets.htmlAppend('<br>');
-	}
-
-	$('.preset').on('click', function() {
-      $('#default_fg').val(this.dataset.xfg)
-      $('#default_bg').val(this.dataset.xbg)
-      showColor()
   });
 </script>

pages/help.php

@@ -16,6 +16,7 @@
 <?php require __DIR__ . "/help/sgr_colors.php"; ?>
 <?php require __DIR__ . "/help/cmd_cursor.php"; ?>
 <?php require __DIR__ . "/help/cmd_screen.php"; ?>
+<?php require __DIR__ . "/help/cmd_d2d.php"; ?>
 <?php require __DIR__ . "/help/cmd_system.php"; ?>
 
 <script>

pages/help/cmd_d2d.php

@@ -0,0 +1,92 @@
+<div class="Box fold">
+	<h2>Commands: Networking</h2>
+
+	<div class="Row v">
+		<p>
+			ESPTerm implements commands for device-to-device messaging and for requesting external
+			servers. This can be used e.g. for remote control, status reporting or data upload / download.
+		</p>
+
+		<p>
+			Networking commands use the format `\e^...\a`, a Privacy Message (PM).
+			PM is similar to OSC, which uses `]` in place of `^`. The PM payload (text between `\e^` and `\a`)
+			must be shorter than 256 bytes,	and should not contain any control characters (ASCII < 32).
+		</p>
+
+		<h3>Device-to-device Messaging</h3>
+
+		<p>
+			To send a message to another ESPTerm module, use: `\e^M;<i>DestIP</i>;<i>message</i>\a`.
+		</p>
+
+		<p>
+			This command sends a POST request to `http://<i>&lt;DestIP&gt;</i>/api/v1/msg`.
+			The IP address may be appended by a port, if needed (eg. :8080). In addition to POST,
+			a GET request can also be used. In that case, any GET arguments (`/api/v1/msg?<i>arguments</i>`)
+			will be used instead of the request body. This is intended for external access
+			when sending POST requests is not convenient.
+		</p>
+
+		<p>
+			Each ESPTerm listens for such requests and relays them to UART:
+			`\e^m;<i>SrcIP</i>;L=<i>length</i>;<i>message</i>\a`, with _length_ being the byte length of
+			_message_, as ASCII.
+		</p>
+
+		<p>
+			Notice a pattern with the first letter: capital is always a command, lower case a response.
+			This is followed with the HTTP commands and any networking commands added in the future.
+		</p>
+
+		<p>
+			*Example:* Node 192.168.0.10 sends a message to 192.168.0.19: `\e^M;192.168.0.19;Hello\a`.
+			Node 192.168.0.19 receives `\e^m;192.168.0.10;L=5;Hello\a` on the UART. Note that the IP
+			address in the reception message is that of the first node, thus it can be used to send a message back.
+		</p>
+
+		<h3>External HTTP requests</h3>
+
+		<p>
+			To request an external server, use `\e^H;<i>method</i>;<i>options</i>;<i>url</i>\n<i>body</i>\a`.
+		</p>
+
+		<ul>
+			<li>`_method_` - can be any usual HTTP verb, such as `GET`, `POST`, `PUT`, `HEAD`.
+			<li>`_options_` - is a comma-separated list of flags and parameters:
+				<ul>
+					<li>`H` - get response headers
+					<li>`B` - get response body
+					<li>`X` - ignore the response, return nothing
+					<li>`N=<i>nonce</i>` - a custom string that will be added in the options field of the response message.
+						Use this to keep track of which request a response belongs to.
+					<li>`T=<i>ms</i>` - request timeout (default 5000~ms), in milliseconds
+					<li>`L=<i>bytes</i>` - limit response length (default 0 = don't limit). Applies to the head, body, or both combined, depending on the `H` and `B` flags
+					<li>`l=<i>bytes</i>` - limit the response buffer size (default 5000~B).
+						This can reduce RAM usage, however it shouldn't be set too small, as this buffer
+						is used for both headers and the response body.
+				</ul>
+			<li>`_url_` - full request URL, including `http://`. Port may be specified if different from :80,
+				and GET arguments may be appended to the URL if needed.
+			<li>`_body_` - optional, separated from `_url_` by a single line feed character (`\n`).
+				This can be used for POST and PUT requests. Note: the command may be truncated to the
+				maximum total length of 256 characters if too long.
+		</ul>
+
+		<p>The response has the following format: `\e^h;<i>status</i>;<i>options</i>;<i>response</i>\a`</p>
+
+		<ul>
+			<li>`_status_` - a HTTP status code, eg. 200 is OK, 404 Not found.
+			<li>`_options_` - similar to those in the request, here describing the response data.
+				This field can contain comma-separated `B`, `H` and `L=<i>bytes</i>` and `N=<i>nonce</i>`.
+			<li>`_response_` - the response, as requested. If both headers and body are received,
+				they will be separated by an empty line (i.e. `\r\n\r\n`). Response can be up to several
+				kilobytes long, depending on the `L=` and `l=` options.
+		</ul>
+
+		<p>
+			*Example:* `\e^H;GET;B;http://wtfismyip.com/text\a` - get the body of a web page
+			(wtfismyip.com is a service that sends back your IP address).
+			A response could be `\e^h;200;B,L=11;80.70.60.50\a`.
+		</p>
+	</div>
+</div>

pages/help/input.php

@@ -21,6 +21,7 @@
 			Here are some examples of control key codes:
 		</p>
 
+		<div class="tscroll">
 		<table>
 			<thead><tr><th>Key</th><th>Code</th><th>Key</th><th>Code</th></tr></thead>
 			<tr>
@@ -108,6 +109,7 @@
 				<td>ASCII 1-26</td>
 			</tr>
 		</table>
+		</div>
 
 		<h3>Action buttons</h3>
 

pages/help/sgr_colors.php

@@ -1,6 +1,6 @@
 
 <div class="Box fold">
-	<h2>Commands: Color attributes</h2>
+	<h2>Commands: Color Attributes</h2>
 
 	<div class="Row v">
 		<p>

pages/help/sgr_styles.php

@@ -1,5 +1,5 @@
 <div class="Box fold">
-	<h2>Commands: Style attributes</h2>
+	<h2>Commands: Style Attributes</h2>
 
 	<div class="Row v">
 		<p>

pages/help/troubleshooting.php

@@ -12,15 +12,14 @@
 				appear on the screen. Set _Parser Timeout = 0_ in <a href="<?= url('cfg_term') ?>">Terminal Settings</a>
 				to be able to manually enter escape sequences.
 
-			<li>There is very little RAM available to the webserver, and it can support at most 4 connections at the same time.
+			<li>Use Ctrl+F12 to open a screen debug panel. Additional debugging can be enabled in the
-				Each terminal session (open window with the terminal screen) uses one persistent connection for screen updates.
+				<a href="<?= url('cfg_term') ?>">Terminal Settings</a> (near the bottom).
-				*Avoid leaving unused windows open*, or either the RAM or connections may be exhausted.
 
 			<li>*For best performance*, use the module in Client mode (connected to external network) and minimize the number
 				of simultaneous connections. Enabling AP consumes extra RAM because the DHCP server and Captive Portal
 				DNS server are started.
 
-			<li>In AP mode, *check that the WiFi channel used is clear*; interference may cause flaky connection.
+			<li>*Check that the WiFi channel used is clear*; interference may cause flaky connection.
 				A good mobile app to use for this is
 				<a href="https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer">WiFi Analyzer (Google Play)</a>.
 				Adjust the hotspot strength and range using the _Tx Power setting_.

pages/term.php

@@ -13,51 +13,53 @@
 <div class="Modal light hidden" id="fu_modal">
 	<div id="fu_form" class="Dialog">
 		<div class="fu-content">
-			<h2>Text Upload</h2>
+			<h2><?= tr('upload.title') ?></h2>
 			<p>
-				<label for="fu_file">Load a text file:</label>
+				<label for="fu_file"><?= tr('upload.prompt') ?></label>
 				<input type="file" id="fu_file" accept="text/*" /><br>
 				<textarea id="fu_text"></textarea>
 			</p>
 			<p>
-				<label for="fu_crlf">Line Endings:</label>
+				<label for="fu_crlf"><?= tr('upload.endings') ?></label>
 				<select id="fu_crlf">
-					<option value="CR">CR (Enter key)</option>
+					<option value="CR"><?= tr('upload.endings.cr') ?></option>
-					<option value="CRLF">CR LF (Windows)</option>
+					<option value="CRLF"><?= tr('upload.endings.crlf') ?></option>
-					<option value="LF">LF (Linux)</option>
+					<option value="LF"><?= tr('upload.endings.lf') ?></option>
 				</select>
 			</p>
 			<p>
-				<label for="fu_delay">Line Delay (ms):</label>
+				<label for="fu_delay"><?= tr('upload.chunk_delay') ?></label>
 				<input id="fu_delay" type="number" value=1 min=0>
 			</p>
+			<p>
+				<label for="fu_chunk"><?= tr('upload.chunk_size') ?></label>
+				<input id="fu_chunk" type="number" value=0 min=0 max=100>
+			</p>
 		</div>
 		<div class="fu-buttons">
-			<button id="term-fu-start" class="icn-ok x-fu-go">Start</button>&nbsp;
+			<button id="term-fu-start" class="icn-ok x-fu-go"><?= tr('start') ?></button>&nbsp;
-			<button id="term-fu-close" class="icn-cancel x-fu-cancel">Cancel</button>&nbsp;
+			<button id="term-fu-close" class="icn-cancel x-fu-cancel"><?= tr('cancel') ?></button>&nbsp;
-			<i class="fu-prog-box">Upload: <span id="fu_prog"></span></i>
+			<i class="fu-prog-box"><?= tr('upload.progress') ?> <span id="fu_prog"></span></i>
 		</div>
 	</div>
 </div>
 
-<h1 id="screen-title"><!-- Screen title is loaded here by JS --></h1>
+<h1 id="screen-title"><!-- JS, title --></h1>
 <a href="#" id="term-fit-screen" class="mq-tablet-max"><i id="resize-button-icon" class="icn-resize-small"></i></a>
 
 <div id="term-wrap">
 	<div id="screen">
 		<input id="softkb-input" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false" />
 		<div id="touch-select-menu">
-			<button id="touch-select-copy-btn">Copy</button>
+			<button id="touch-select-copy-btn"><?= tr('copy') ?></button>
 		</div>
+		<div class="screen-margin top"></div>
+		<div class="screen-margin left"></div>
+		<div class="screen-margin right"></div>
+		<div class="screen-margin bottom"></div>
 	</div>
 
-	<div id="action-buttons">
+	<div id="action-buttons"><!-- JS, buttons --></div>
-		<button data-n="1"></button><!--
-		--><button data-n="2"></button><!--
-		--><button data-n="3"></button><!--
-		--><button data-n="4"></button><!--
-		--><button data-n="5"></button>
-	</div>
 </div>
 
 <nav id="term-nav">
@@ -72,13 +74,7 @@
 <script>
   try {
     window.noAutoShow = true;
-    termInit({
+    termInit({ allFn: !!+'%want_all_fn%', });
-      labels: '%j:labels_seq%',
-	  theme: +'%theme%',
-      defaultFg: +'%default_fg%',
-	  defaultBg: +'%default_bg%',
-	  allFn: !!+'%want_all_fn%',
-    });
   } catch (e) {
     console.error(e);
 	  <?php if (!DEBUG): ?>

sass/app.scss

@@ -7,7 +7,7 @@
 
 @import "utils";
 
-$form-label-w: 180px;
+$form-label-w: 220px;
 $form-label-gap: 8px;
 $form-field-w: 250px;
 
@@ -20,6 +20,7 @@ $c-form-highlight-a: #2ea1f9;
 
 $c-modal-bg: #242426;
 
+$font-stack: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica, Roboto, Arial, sans-serif;
 $screen-stack: "DejaVu Sans Mono", "Liberation Mono", "Inconsolata", "Menlo", monospace;
 
 @function dist($x) {

sass/form/_form_elements.scss

@@ -17,7 +17,7 @@ input.tiny, select.tiny {
 	border-bottom: 2px solid $c-form-highlight;
 	background-color: $c-form-field-bg;
 	color: $c-form-field-fg;
-	padding: 6px;
+	padding: 4px 6px;
 	line-height: 1em;
 	//outline: 0 none !important;
 	//-moz-outline: 0 none !important;

sass/layout/_base.scss

@@ -1,10 +1,10 @@
 html {
-	font-family: Arial, sans-serif;
+	font-family: $font-stack;
 	color: #D0D0D0;
-	background: #131315;
 }
 
 html, body {
+	background: #131315;
 	@include naked();
 	width: 100%;
 	height: 100%;