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mobile.html
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mobile.html
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<html>
<head>
<title>oK Mobile</title>
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no, width=device-width">
<meta name="apple-mobile-web-app-capable" content="yes"/>
<link rel="apple-touch-icon" href="icon.png">
<link rel="stylesheet" href="http://yui.yahooapis.com/pure/0.6.0/base-min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.3.0/Chart.min.js"></script>
<style>
body {
display: flex;
flex-direction: column;
height: 100%;
overflow: hidden;
}
/* the IO transcript: */
#console {
font-family: monospace;
font-size: 20px;
padding: 5px;
overflow: hidden;
background-color: white;
}
#console-pane {
height: 40%;
overflow-y: scroll;
}
#console-content {
display: flex;
flex-direction: column;
background-color: white;
}
.input,
.output,
.error,
.palette {
padding-left: 10px;
padding-right: 10px;
border-radius: 5px;
margin-top: 4px;
}
.input {
background-color: orange;
align-self: flex-end;
}
.output {
background-color: lightgray;
align-self: flex-start;
}
.error {
background-color: pink;
align-self: flex-start;
}
.palette {
background-color: lightblue;
align-self: flex-start;
display:flex;
flex-wrap: wrap;
padding: 10px;
}
.palette span {
background-color: #0066FF;
color: white;
border-radius: 5px;
padding: 5px;
padding-left: 10px;
padding-right: 10px;
margin: 5px;
}
/* the editor line: */
#editline {
background-color: black;
color: white;
font-size: 30px;
font-family: monospace;
padding-left: 5px;
padding-right: 5px;
overflow-wrap: break-word;
/* disable text selection */
user-select: none;
-moz-user-select: none;
-khtml-user-select: none;
-webkit-user-select: none;
-o-user-select: none;
}
.cursor {
color: orange;
font-weight: lighter;
font-family: sans-serif;
}
/* the actual keyboard */
#keyboard {
background-color: gray;
display: flex;
flex-direction: column;
flex-grow: 2;
}
.row {
/* layout */
display: flex;
flex-direction: row;
flex-grow: 1;
/* appearance */
margin-top: 2px;
margin-bottom: 2px;
}
.key {
/* layout */
flex-grow: 1;
display: flex;
flex-direction: column;
justify-content: center;
text-align: center;
/* appearance */
background-color: lightgray;
border-radius: 5px;
margin-left: 2px;
margin-right: 2px;
font-weight: bold;
font-family: monospace;
font-size: 20px;
/* disable text selection */
user-select: none;
-moz-user-select: none;
-khtml-user-select: none;
-webkit-user-select: none;
-o-user-select: none;
}
.key:active {
background-color: darkgray;
}
.alpha-key {
background-color: white;
}
.num-key {
background-color: white;
}
.special-key {
background-color: orange;
}
.space-key {
background-color: white;
flex-grow: 2;
}
</style>
</head>
<body oncontextmenu="return false;">
<div id="console">
<div id="console-pane">
<div id="console-content">
</div>
</div>
</div>
<div id="keyboard"/>
</body>
<script src="oK.js"></script>
<script src="convert.js"></script>
<script>
function inl(x, list) {
return list.indexOf(x) >= 0;
}
function read(x) {
var s = tojs(x);
var i = localStorage.getItem(s);
if (!i) { return k(3,[]); }
return parse(i);
}
function write(x, y) {
var t = tojs(x);
if (t.length == 0) {
var s = tojs(y);
if (Array.isArray(s)) { s = s.join('\n') + '\n'; }
if (typeof s !== 'string') { throw new Error('type error'); }
printText("output", s);
}
else {
localStorage.setItem(t, format(y));
}
return y;
}
function writeMenu(x, y) {
var title = tojs(x);
if (y.t == 4) {
var options = y.k.v.map(function(x) {
return (x.t == 3) ? ""+tojs(x) : x.v;
});
var triggers = y.v.v.map(function(x) {
if (!(x.t in {5:0, 8:0, 9:0})) { throw new Error('menu triggers must be verbs.'); }
return x;
});
printMenu(title, options, triggers);
}
else if (y.t == 3) {
var options = y.v.map(function(x) {
return (x.t == 3) ? ""+tojs(x) : x.v;
});
printMenu(title, options);
}
else {
throw new Error('menu items must be a dictionary or list.');
}
return y;
}
function httpRequest(url, verb, body, response) {
try {
var xhr = new XMLHttpRequest();
xhr.open(verb, url);
xhr.ontimeout = function() {
printText('error', 'HTTP ' + verb + ' request timed out.');
}
xhr.onerror = function(error) {
printText('error', 'HTTP ' + verb + ' request failed. Bad URL?');
}
xhr.onreadystatechange = function() {
if (xhr.readyState != 4) { return; }
if (xhr.status != 200) {
printText('error', 'HTTP '+xhr.status+' from ' + verb + ' request.');
return;
}
response(xhr.responseText);
}
xhr.send(body);
}
catch(e) {
printText('error', e.message + ' from ' + verb + ' request.');
}
}
function loadHTTP(target, url) {
httpRequest(
tojs(url),
'GET',
undefined,
function(text) {
if (target.t in { 5:0, 8:0, 9:0 }) {
call(target, k(3,[tok(text)]), env);
}
else if (target.t == 2) {
env.put(target, true, tok(text));
printMenu('GET successful:', [target.v]);
}
else {
printText('error', '1: left argument must be a symbol or monad.');
}
}
);
return url;
}
function storeHTTP(url, source) {
httpRequest(
tojs(url),
'POST',
tojs(source),
function(text) {
printText('output', 'POST successful.');
}
);
return url;
}
var env = baseEnv();
for (var i = 0; i < 2; i++) { setIO('0:', i, read); }
for (var i = 2; i < 6; i++) { setIO('0:', i, write); }
for (var i = 0; i < 2; i++) { setIO('5:', i, function(x) { return stok(format(x)); }); }
setIO('1:', 4, loadHTTP);
setIO('2:', 3, storeHTTP);
setIO('2:', 5, storeHTTP);
setIO('6:', 3, writeMenu);
setIO('6:', 5, writeMenu);
/**
* The REPL edit line and output:
**/
var editText = "";
var editIndex = 0;
var kkeys = {};
function asHTML(text) {
return text.replace(/[&]/g, "&").
replace(/[ ]/g, " ").
replace(/[<]/g, "<").
replace(/[>]/g, ">").
replace(/[\n]/g, "<br/>");
}
function printNode(type, n) {
var div = document.createElement("div");
div.className = type;
div.appendChild(n);
document.getElementById("console-content").appendChild(div);
var panel = document.getElementById("console-pane");
panel.scrollTop = panel.scrollHeight;
}
function printText(type, text) {
var div = document.createElement("div");
div.className = type;
div.innerHTML = asHTML(text);
document.getElementById("console-content").appendChild(div);
var panel = document.getElementById("console-pane");
panel.scrollTop = panel.scrollHeight;
div.onclick = function(event) {
updateEdit(text, text.length);
};
}
function printMenu(label, options, triggers) {
var div = document.createElement("div");
div.className = "palette";
if (options.length < 1) {
div.innerHTML = "No "+label+" defined.";
}
else {
div.innerHTML = "<div style='display:block;width:100%'>" + label + "</div>";
}
options.forEach(function(x, index) {
var o = document.createElement("span");
o.innerHTML = x;
o.onclick = function(event) {
if (triggers) {
var r = call(triggers[index], k(3,[tok(x)]), env);
if (r.t == 3) { insertText(""+tojs(r)); }
return;
}
try {
var i = env.lookup(ks(x), true);
}
catch(e) {
var i = k(0,0);
}
if (i.t == 5) {
var a = i.args.slice(1).map(function() { return ";" }).join("");
insertText(x+"["+a+"]");
updateEdit(editText, editIndex - (1 + a.length));
}
else {
insertText(""+x);
}
};
div.appendChild(o);
});
document.getElementById("console-content").appendChild(div);
var panel = document.getElementById("console-pane");
panel.scrollTop = panel.scrollHeight;
}
function searchEnv(filter) {
var r = [];
for(var z = 0; z < len(env.d.k); z++) {
if (filter(env.d.v.v[z])) { r.push(env.d.k.v[z].v); }
}
return r;
}
function processLine() {
printText("input", editText);
var beforeTime = null;
while(editText.match(/^\\[a-z]/)) {
var c = editText[1];
editText = editText.substring(2);
if (c == 't') {
beforeTime = new Date().getTime();
}
else if (c == 'c') {
document.getElementById("console-content").innerHTML = "";
updateEdit("", 0);
return;
}
else if (c == 'x') {
printMenu("functions", searchEnv(function(v) { return v.t >= 5 && v.t != 13; }));
}
else if (c == 'y') {
printMenu("variables", searchEnv(function(v) { return v.t < 5; }));
}
else {
printText("error", "unknown command flag '"+c+"'.");
updateEdit("", 0);
return;
}
}
try {
var parsed = parse(editText);
var result = format(run(parsed, env));
printText("output", result);
if (beforeTime) {
var afterTime = new Date().getTime();
printText("output", "completed in "+(afterTime-beforeTime)+"ms.");
}
}
catch(error) {
printText("error", error.message);
}
updateEdit("", 0);
}
function updateEdit(t, c) {
function byChar(s) {
return s.split("").map(function(c) {
return "<span>" + asHTML(c) + "</span>";
}).join('');
}
var before = byChar(t.substring(0, c));
var after = byChar(t.substring(c, t.length));
var cursor = "<span class='cursor'>|</span>";
document.getElementById("editline").innerHTML = before + cursor + after;
editText = t;
editIndex = c;
}
/**
* Charting
**/
Chart.defaults.global.legend.display = false;
function linePlot(drawLines, points) {
var p = document.createElement("div");
p.style.paddingTop = "10px";
var c = document.createElement("canvas");
p.appendChild(c);
printNode("output", p);
var myChart = Chart.Line(c, {
data: {
datasets: [{
lineTension: 0,
data: points,
}]
},
options: {
showLines: drawLines,
scales: {
xAxes: [{
type: 'linear',
position: 'bottom'
}]
}
}
});
}
function kplot(func, x, y) {
// if x is a number, make it !x
if (x.t == 0) { x = iota(x); }
if (x.t != 3) { throw new Error("plot domain must be a number or list."); }
// if y is a function, make it y'x
if (y.t != 3) {
if (valence(y, env) != 1) {
throw new Error("plot function must be monadic.");
}
y = each(y, x, env);
}
if (y.t != 3) { throw new Error("plot range must be a list."); }
var xv = tojs(x);
var yv = tojs(y);
// trim ragged data to minimum, for convenience:
var l = Math.min(xv.length, yv.length);
var d = [];
for (var z=0; z < l; z++) {
d.push({ x: xv[z], y: yv[z] });
}
func(d);
}
function plotHelper(func, name) {
// install the necessary wrappers for a plotting function into env:
var f = kplot.bind(this, func);
natives[name] = 0;
verbs[name] = [null, null, f, f, f, f, null, null];
trampoline(env, name, ["x", "y"], f);
}
plotHelper(linePlot.bind(this, true), "pl");
plotHelper(linePlot.bind(this, false), "ps");
/**
* The keyboard itself:
**/
var alpha = "abcdefghijklmnopqrstuvwxyz".split("");
var numeric = "0123456789".split("");
var shiftbase = "`1234567890-=[],./;'\\".split("");
var shiftalt = "~!@#$%^&*()_+{}<>?:\"|".split("");
var special = ["←","→","DEL","EVAL","BACK","SHIFT","MODE","↵","×"];
var shiftHeld = false;
var keyboardMode = null;
function shiftedLabel(key, label, shifted) {
if (label == 'BACK' && shifted) { return 'HOME'; }
if (label == 'DEL' && shifted) { return 'CLR'; }
if (key.isAlpha) {
return shifted ? label.toUpperCase() : label;
}
if (inl(label, shiftbase)) {
return shifted ? shiftalt[shiftbase.indexOf(label)] : label;
}
return label;
}
function insertText(text) {
updateEdit(
editText.substring(0, editIndex) + text + editText.substring(editIndex),
editIndex + text.length
);
}
function typeNormal(key, text, event) {
event.preventDefault();
event.stopPropagation();
if (text in { "pl":0, "ps":0 }) { text += "["; }
if (text in { "sin":0, "cos":0, "log":0, "exp":0, "in":0, "prm":0 }) { text += " "; }
text = shiftedLabel(key, text, shiftHeld);
insertText(text);
}
function specialDown(key) {
switch(key) {
case "SHIFT":
return function(event) {
if (event) {
event.preventDefault();
event.stopPropagation();
}
shiftHeld = true;
Object.keys(kkeys).forEach(function(k) {
kkeys[k].innerHTML = shiftedLabel(kkeys[k], k, true);
});
};
default: return function(event) {};
}
}
function specialUp(key) {
switch(key) {
case "MODE":
return function(event) {
event.preventDefault();
event.stopPropagation();
if (keyboardMode == "full") {
buildCalcKeyboard();
}
else {
buildFullKeyboard();
}
}
case "SHIFT":
return function(event) {
if (event) {
event.preventDefault();
event.stopPropagation();
}
shiftHeld = false;
Object.keys(kkeys).forEach(function(k) {
kkeys[k].innerHTML = shiftedLabel(kkeys[k], k, false);
});
};
case "EVAL":
case "↵":
return function(event) {
event.preventDefault();
event.stopPropagation();
processLine();
};
case "DEL":
case "×":
return function(event) {
event.preventDefault();
event.stopPropagation();
if (shiftHeld) {
// CLR
updateEdit("", 0);
return;
}
updateEdit(
editText.substring(0, editIndex - 1) + editText.substring(editIndex),
Math.max(0, editIndex - 1)
);
};
case "←":
return function(event) {
event.preventDefault();
event.stopPropagation();
updateEdit(
editText,
Math.max(0, editIndex - 1)
);
};
case "→":
return function(event) {
event.preventDefault();
event.stopPropagation();
updateEdit(
editText,
Math.min(editText.length, editIndex + 1)
);
};
default: return function(event) {};
}
}
function buildKey(key) {
var r = document.createElement("span");
r.className = "key";
kkeys[key] = r;
if (key == " ") {
r.className += " space-key";
r.innerHTML = " ";
var handler = typeNormal.bind(this, r, " ");
r.addEventListener("mouseup", handler);
r.addEventListener("touchend", handler);
}
else if (inl(key, alpha)) {
r.className += " alpha-key";
r.innerHTML = key;
r.isAlpha = true;
var handler = typeNormal.bind(this, r, key);
r.addEventListener("mouseup", handler);
r.addEventListener("touchend", handler);
}
else if (inl(key, special)) {
r.className += " special-key";
r.innerHTML = key;
var downHandler = specialDown(key);
var upHandler = specialUp(key);
r.addEventListener("mousedown", downHandler);
r.addEventListener("touchstart", downHandler);
r.addEventListener("mouseup", upHandler);
r.addEventListener("touchend", upHandler);
}
else {
r.innerHTML = key;
if (inl(key, numeric)) { r.className += " num-key"; }
var handler = typeNormal.bind(this, r, key);
r.addEventListener("mouseup", handler);
r.addEventListener("touchend", handler);
}
return r;
}
function swipeEdit(event) {
if (event.targetTouches) { event = event.targetTouches[0]; }
if (!event) { return; }
var edit = document.getElementById("editline");
var tx = event.clientX;
var ty = event.clientY;
var i = 0;
var c = edit.childNodes;
for(var index = 0; index < c.length; index++) {
var r = c[index].getBoundingClientRect();
var cx = r.left;
var cy = r.top;
if (cx < tx && cy < ty) { i = index; }
}
updateEdit(editText, i);
}
function buildKeyboard(keyrows) {
var board = document.getElementById("keyboard");
var d = document.createElement("div");
d.id = "editline";
board.innerHTML = "";
board.appendChild(d);
d.addEventListener("touchend", swipeEdit);
d.addEventListener("mousedown", swipeEdit);
keyrows.forEach(function(rowKeys) {
var row = document.createElement("div");
row.className = "row";
board.appendChild(row);
rowKeys.split("|").forEach(function(keyString) {
if (keyString == "BAR") { keyString = "|"; }
row.appendChild(buildKey(keyString));
});
});
}
function buildFullKeyboard() {
keyboardMode = "full";
shiftHeld = false;
buildKeyboard([
"←|→|1|2|3|4|5|6|7|8|9|0|DEL",
"\\|q|w|e|r|t|y|u|i|o|p|[|]",
";|a|s|d|f|g|h|j|k|l|'",
"`|-|=|z|x|c|v|b|n|m|,|.|/",
"SHIFT| |EVAL|SHIFT",
]);
updateEdit(editText, editIndex);
}
function buildCalcKeyboard() {
keyboardMode = "calc";
shiftHeld = false;
buildKeyboard([
"←|/|\\|'|/:|\\:|':|:|→",
"sin|cos|log|exp|in|prm|pl|ps",
"+|-|*|%|^|#|_|!",
"<|>|=|~|&|BAR|,|?",
"`|x|7|8|9|(|)",
"$|y|4|5|6|{|}",
"@|z|1|2|3|[|]",
"DEL|.|0| |;|↵",
]);
updateEdit(editText, editIndex);
}
document.body.onkeydown = function(event) {
if (event.shiftKey) { specialDown("SHIFT")(null); }
if (event.keyCode == 37) { specialUp("←")(event); }
if (event.keyCode == 39) { specialUp("→")(event); }
if (event.keyCode == 8) { specialUp("DEL")(event); }
if (event.keyCode == 13) { specialUp("EVAL")(event); }
}
document.body.onkeyup = function(event) {
if (event.keyCode == 16) { specialUp("SHIFT")(event); }
}
window.onkeypress = function(event) {
typeNormal({}, String.fromCharCode(event.charCode), event);
}
window.onresize = function() {
if (window.innerWidth > window.innerHeight) {
if (keyboardMode != "full") {
buildFullKeyboard();
}
}
else {
if (keyboardMode != "calc") {
buildCalcKeyboard();
}
}
}
/**
* Initialization (including temporary testing data):
**/
window.onresize();
printText("output", "oK Mobile v"+version);
var bootEnv = localStorage.getItem('env');
if (bootEnv && bootEnv != '()') {
try {
var parsed = parse(bootEnv)[0];
if (parsed.t != 4) {
printText("error", "base environment must be a dictionary.");
}
else {
env.d = parsed;
}
}
catch(error) {
printText("error", "environment: " + error.message);
}
}
var bootString = localStorage.getItem('boot');
if (bootString && bootString != "()") {
try {
var parsed = parse(bootString);
keval(parsed[0], env);
}
catch(error) {
printText("error", "bootloader: " + error.message);
}
}
// partially suppress stretch-scroll on iOS/Safari:
document.getElementById("keyboard").ontouchmove = function(event){
event.preventDefault();
}
</script>
</html>