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Add all core JavaScript libraries.

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This commit is contained in:
evancz 2012-04-19 23:10:25 -04:00
parent a587ff5132
commit ff3d6ec6cb
14 changed files with 1583 additions and 0 deletions
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274
core-js/Element.js Normal file
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var Element = function() {
var newElement = function(elementType) {
var e = document.createElement(elementType);
e.id = Guid.guid();
//e.timesAdded = 0;
return e;
};
var addTo = function(container, elem) {
container.appendChild(clone(elem));
//elem.timesAdded += 1;
};
var clone = function(e) {
return e;
/*if (e.timesAdded === 0) { return e; }
if (e.tagName === "CANVAS") {
var newCanvas = e.cloneNode(true);
var ctx = newCanvas.getContext('2d');
ctx.drawImage(e, 0, 0);
return newCanvas;
} else if (e.tagName === "IMG") {
d = image([]);
d.src = e.src;
d.name = e.name;
if (e.style.width !== "") { d.style.width = d.width = e.style.width; }
if (e.style.height !== ""){d.style.height = d.height = e.style.height;}
return d;
} else if (e.hasOwnProperty('isElmLeaf')) {
return e.cloneNode(true);
} else {
d = e.cloneNode(false);
var kids = e.childNodes;
var len = kids.length;
for (var i = 0; i < len; i++) {
d.appendChild(clone(kids[i]));
}
return d;
}*/
};
var divify = function(e) {
var div = newElement('div');
addTo(div, e);
return div;
};
var makeText = function(w) { return function(pos) { return function(txt) {
var e = newElement('div');
e.isElmText = true;
e.innerHTML = txt;
e.style.textAlign = pos;
if (w > 0) e.style.width = w + "px";
e.isElmLeaf = true;
e.style.visibility = "hidden";
e.style.styleFloat = "left";
e.style.cssFloat = "left";
document.body.appendChild(e);
var cStyle = window.getComputedStyle(e);
if (w <= 0) e.style.width = cStyle.getPropertyValue("width");
e.style.height = cStyle.getPropertyValue("height");
document.body.removeChild(e);
e.style.visibility = "visible"
e.style.styleFloat = "none";
e.style.cssFloat = "none";
return e;
};
};
};
var link = function (href) { return function (e) {
var a = newElement('a');
a.href = Text.fromString(href);
addTo(a,e);
return divify(a);
};
};
var text = makeText(0)('left');
var plainText = function(str) {
return makeText(0)("left")(String.toText(str)); };
var justifiedText = makeText(0)('justify');
var centeredText = makeText(0)('center');
var asText = function(v) { return makeText(0)("left")(Value.show(v)); };
var image = function(src) {
var img = newElement('img');
img.isElmLeaf = true;
img.onload = function() {
if (img.style.width === "" && this.width > 0) {
img.style.width = img.width = this.width + "px";
}
if (img.style.height === "" && this.height > 0) {
img.style.height = img.height = this.height + "px";
}
Dispatcher.adjust()
};
img.src = String.toText(src);
img.name = img.src;
return img;
};
var video = function(src) {
src = String.toText(src);
var e = newElement('video');
e.controls = "controls";
var source = newElement('source');
source.src = src;
source.type = "video/" + src.substring(src.length - 3, src.length);
addTo(e, source);
e.isElmLeaf = true;
return e;
};
var audio = function(src) {
src = String.toString(src);
var e = newElement('video');
e.controls = "controls";
var source = newElement('source');
source.src = src;
source.type = "audio/" + src.substring(src.length - 3, src.length);
addTo(e, source);
e.isElmLeaf = true;
return e;
};
var collage = function(w) { return function(h) { return function(cflist) {
var canvas = newElement('canvas');
canvas.style.width = w + 'px';
canvas.style.height = h + 'px';
canvas.width = w;
canvas.height = h;
if (canvas.getContext) {
var ctx = canvas.getContext('2d');
ctx.clearRect(0,0, canvas.width, canvas.height);
while (cflist[0] === "Cons") {
ctx = cflist[1](ctx);
cflist = cflist[2];
}
return canvas;
}
canvas.innerHTML = "Your browser does not support the canvas element.";
canvas.isElmLeaf = true;
return canvas;
};
};
};
var goDown = function(e) {
return e.tagName === "DIV" ? e : divify(e);
};
var goRight = function(e) {
e.style.styleFloat = "left";
e.style.cssFloat = "left";
return e;
};
var goIn = function(e) {
e.style.position = 'absolute';
return e;
};
var flowWith = function(dir, f, elist) {
var container = newElement('div');
for (var i = elist.length; i--; ) {
addTo(container, f(elist[i]));
}
container.elmFlowDirection = dir;
return container;
};
var flow = function(direction) { return function(elist) {
var arr = [];
while (elist[0] === "Cons") {
arr.push(elist[1]);
elist = elist[2];
}
if (direction >= 3) arr.reverse();
var f = function(x) { return x; };
var dir = direction % 3;
if (dir == 0) return flowWith("Y", goDown , arr);
if (dir == 1) return flowWith("X", goRight, arr);
if (dir == 2) return flowWith("Z", goIn , arr);
};
};
var beside = function(a) { return function(b) {
return flow(1)(["Cons",a,["Cons",b,["Nil"]]]); }; };
var above = function(a) { return function(b) {
return flow(0)(["Cons",a,["Cons",b,["Nil"]]]); }; };
var below = function(a) { return function(b) {
return flow(3)(["Cons",a,["Cons",b,["Nil"]]]); }; };
var box = function(pos) { return function(e) {
e.style.position = "absolute";
e.style.margin = "auto";
var x = (pos - 1) % 3;
var y = (pos - 1) / 3;
if (x < 2) e.style.left = 0;
if (x > 0) e.style.right = 0;
if (y < 2) e.style.top = 0;
if (y > 0) e.style.bottom = 0;
var div = newElement('div');
div.style.position = "relative";
addTo(div,e);
return div;
};
};
var width = function(w) { return function(e) {
if (e.tagName === "A") {
width(w)(e.firstChild);
return e;
}
if (e.hasOwnProperty('isElmText')) {
var d = makeText(w)(e.style.textAlign)(e.innerHTML);
e.style.height = d.style.height;
}
e.style.width = w + "px";
return e;
};
};
var height = function(h) { return function(e) {
(e.tagName === "A" ? e.firstChild : e).style.height = h + "px";
return e;
};
};
var size = function(w) { return function(h) { return function(e) {
var d = e.tagName === "A" ? e.firstChild : e;
d.style.width = w + "px";
d.style.height = h + "px";
return e;
};
};
};
var color = function(c) { return function(e) {
e.style.backgroundColor = Color.Internal.extract(c);
return e;
};
};
var opacity = function(value) { return function(e) {
e.style.opacity = value;
return e;
};
};
return {text : text,
image : image,
video : video,
audio : audio,
collage : collage,
flow : flow,
layers : flow(2),
beside : beside,
above : above,
below : below,
box : box,
width : width,
height : height,
size : size,
color : color,
opacity : opacity,
link : link,
asText : asText,
plainText : plainText,
justifiedText : justifiedText,
centeredText : centeredText,
// directions
up : 0,
left : 1,
inward : 2,
down : 3,
right : 4,
outward : 5
};
}();

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var id = function(x) { return x; };
var not = function(exp) { return !exp; };
var sqrt = function(x) { return Math.sqrt(x); };
var mod = function(x) { return function(y) { return x % y; }; };
var abs = function(x) { return Math.abs(x); };
var logBase = function(base) { return function(x) { return Math.log(x) / Math.log(base); }; };
var min = function(x) { return function(y) { return Math.min(x,y); }; };
var max = function(x) { return function(y) { return Math.max(x,y); }; };
var clamp = function(lo) { return function(hi) {
return function(x) { return Math.min(hi, Math.max(lo, x)); };
};
};
var sin = Math.sin, cos = Math.cos, tan = Math.tan;
var asin = Math.asin, acos = Math.acos, atan = Math.atan;
var flip = function(f){return function(x){return function(y){return f(y)(x);};};};
function constant(v) { return Elm.Input(v); }
function lift(f) { return function(e) { return Elm.Lift(f, [e]); }; }
function lift2(f) { return function(e1) { return function(e2) {
return Elm.Lift(f, [e1,e2]); }; }; }
function lift3(f) { return function(e1) { return function(e2) {
return function(e3) { return Elm.Lift(f, [e1,e2,e3]); }; }; }; }
function lift4(f) { return function(e1) { return function(e2) {
return function(e3) { return function(e4) {
return Elm.Lift(f, [e1,e2,e3,e4]); }; }; }; }; }
function foldp(f) { return function(b) { return function(e) {
return Elm.Fold(f,b,e); }; }; }
var includeGlobal = this;
(function() {
var include = function(library) {
for (var i in library) {
if (i === 'Internal') continue;
try {
includeGlobal[i] = library[i];
} catch (err) {
if (i === 'length') {
includeGlobal.execScript('var length;');
length = library[i];
continue;
}
}
}
};
var includeAs = function(name) { return function(library) {
includeGlobal[name] = includeGlobal[name] || {};
for (var i in library) {
if (i === 'Internal') continue;
includeGlobal[name][i] = library[i];
}
};
};
include (Element);
include (Text);
color = Element.color;
height = Element.height;
show = Value.show;
includeAs ('Time') (Signal.Time);
includeAs ('Mouse') (Signal.Mouse);
includeAs ('Window') (Signal.Window);
includeAs ('HTTP') (Signal.HTTP);
includeAs ('Input') (Signal.Input);
includeAs ('Random') (Signal.Random);
include (Color);
include (Shape);
include (Line);
}());

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var Guid = function() {
var counter = 0;
var guid = function() { counter += 1; return counter; };
return {guid : guid};
}();

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var List = function() {
var throwError = function() { throw "Function expecting a list!"; }
function length(xs) {
var out = 0;
while (xs[0] === "Cons") {
out += 1;
xs = xs[2];
}
return out;
};
var reverse = foldl(function(x_72) {
return function(y_73) {
return["Cons", x_72, y_73]
}
})(["Nil"]);
var concat = foldr(function(x_74) {
return function(y_75) {
return Value.append(x_74, y_75)
}
})(["Nil"]);
var and = foldl(function(x_77) {
return function(y_78) {
return x_77 && y_78
}
})(true);
var or = foldl(function(x_79) {
return function(y_80) {
return x_79 || y_80
}
})(false);
var sum = foldl(function(x_89) {
return function(y_90) {
return x_89 + y_90
}
})(0);
var product = foldl(function(x_91) {
return function(y_92) {
return x_91 * y_92
}
})(1);
var maximum = foldl1(function(x) { return function(y) { return Math.max(x,y) } });
var minimum = foldl1(function(x) { return function(y) { return Math.min(x,y) } });
function head(v) {
if (v[0] !== "Cons") {
throw "Error: 'head' only accepts lists of length greater than one.";
}
return v[1];
}
function tail(v) {
if (v[0] !== "Cons") {
throw "Error: 'tail' only accepts lists of length greater than one.";
}
return v[2];
}
function map(f) {
return function(xs) {
if (xs[0] === "Nil") { return xs; }
if (xs[0] !== "Cons") { throwError(); }
var root = ["Cons", f(xs[1]), ["Nil"]];
var curr = root;
xs = xs[2];
while (xs[0]==="Cons") {
curr[2] = ["Cons", f(xs[1]), ["Nil"]];
xs = xs[2];
curr = curr[2];
}
return root;
}
}
function foldl(f) {
return function(b) {
return function(xs) {
var acc = b;
if (xs[0] === "Nil") { return acc; }
if (xs[0] !== "Cons") { throwError(); }
while (xs[0] === "Cons") {
acc = f(xs[1])(acc);
xs = xs[2];
}
return acc;
}
}
}
function foldr(f) {
return function(b) {
return function(xs) {
var acc = b;
if (xs[0] === "Nil") { return acc; }
if (xs[0] !== "Cons") { throwError(); }
var arr = [];
while (xs[0] === "Cons") {
arr.push(xs[1]);
xs = xs[2];
}
for (var i = arr.length; i--; ) {
acc = f(arr[i])(acc);
}
return acc;
}
}
}
function foldl1(f_49) {
return function(_temp_50) {
return function(v) {
if("Cons" !== v[0]) {
return undefined
}else {
var x_51 = v[1];
var xs_52 = v[2];
return foldl(f_49)(x_51)(xs_52)
}
}(_temp_50)
}
}
function foldr1(f_53) {
return function(_temp_54) {
return function(v) {
if("Cons" !== v[0]) {
return undefined
}else {
var x_55 = v[1];
var xs_56 = v[2];
return foldr(f_53)(x_55)(xs_56)
}
}(_temp_54)
}
}
function scanl(f) {
return function(b) {
return function(xs) {
if (xs[0] === "Nil") { return ["Cons",b,["Nil"]]; }
if (xs[0] !== "Cons") { throwError(); }
var arr = [b];
while (xs[0] === "Cons") {
b = f(xs[1])(b);
arr.push(b);
xs = xs[2];
}
var out = ["Nil"];
for (var i = arr.length; i--; ) {
out = ["Cons", arr[i], out];
}
return out;
}
}
}
function scanl1(f) {
return function(xs) {
if (xs[0] !== "Cons") {
throw "Error: 'scanl1' requires a list of at least length 1.";
}
return scanl(f)(xs[1])(xs[2]);
}
}
function filter(pred) {
return function(xs) {
if (xs[0] === "Nil") { return xs; }
if (xs[0] !== "Cons") { throwError(); }
var arr = [];
while (xs[0] === "Cons") {
if (pred(xs[1])) { arr.push(xs[1]); }
xs = xs[2];
}
var out = ["Nil"];
for (var i = arr.length; i--; ) {
out = ["Cons", arr[i], out];
}
return out;
}
}
function concatMap(f_76) {
return function(x) {
return concat(map(f_76)(x))
}
}
function forall(pred) {
return foldl(function(x) { return function(acc) {
return acc && pred(x);
};})(true);
}
function exists(pred) {
return foldl(function(x) { return function(acc) {
return acc || pred(x);
};})(false);
}
function partition(pred_93) {
return function(lst_94) {
return function() {
var v = lst_94;
var c = [function(v) {
if("Nil" !== v[0]) {
return undefined
}else {
return["Tuple2", ["Nil"], ["Nil"]]
}
}, function(v) {
if("Cons" !== v[0]) {
return undefined
}else {
var x_95 = v[1];
var xs_96 = v[2];
return function(v) {
if("Tuple2" !== v[0]) {
return undefined
}else {
var as_97 = v[1];
var bs_98 = v[2];
return pred_93(x_95) ? ["Tuple2", ["Cons", x_95, as_97], bs_98] : ["Tuple2", as_97, ["Cons", x_95, bs_98]]
}
}(partition(pred_93)(xs_96))
}
}];
for(var i = c.length;i--;) {
var r = c[i](v);
if(r !== undefined) {
return r
}
}
}()
}
}
function zipWith(f) {
return function(listA) {
return function(listB) {
if (listA[0] === "Nil" || listB[0] === "Nil") { return listA; }
if (listA[0] !== "Cons" || listB[0] !== "Cons") { throwError(); }
var arr = [];
while (listA[0] === "Cons" && listB[0] === "Cons") {
arr.push(f(listA[1])(listB[1]));
listA = listA[2];
listB = listB[2];
}
var out = ["Nil"];
for (var i = arr.length; i--; ) {
out = ["Cons", arr[i], out];
}
return out;
}
}
}
function zip(listA) {
return function(listB) {
if (listA[0] === "Nil" || listB[0] === "Nil") { return listA; }
if (listA[0] !== "Cons" || listB[0] !== "Cons") { throwError(); }
var arr = [];
while (listA[0] === "Cons" && listB[0] === "Cons") {
arr.push(["Tuple2", listA[1], listB[1]]);
listA = listA[2];
listB = listB[2];
}
var out = ["Nil"];
for (var i = arr.length; i--; ) {
out = ["Cons", arr[i], out];
}
return out;
}
}
function unzip(pairs_112) {
return function() {
var v = pairs_112;
var c = [function(v) {
if("Nil" !== v[0]) {
return undefined
}else {
return["Tuple2", ["Nil"], ["Nil"]]
}
}, function(v) {
if("Cons" !== v[0]) {
return undefined
}else {
var p_113 = v[1];
var ps_114 = v[2];
return function(v) {
if("Tuple2" !== v[0]) {
return undefined
}else {
if("Tuple2" !== v[1][0]) {
return undefined
}else {
var x_115 = v[1][1];
var y_116 = v[1][2];
if("Tuple2" !== v[2][0]) {
return undefined
}else {
var xs_117 = v[2][1];
var ys_118 = v[2][2];
return["Tuple2", ["Cons", x_115, xs_117], ["Cons", y_116, ys_118]]
}
}
}
}(["Tuple2", p_113, unzip(ps_114)])
}
}];
for(var i = c.length;i--;) {
var r = c[i](v);
if(r !== undefined) {
return r
}
}
}()
}
function intersperse(sep_119) {
return function(xs_120) {
return function() {
var v = xs_120;
var c = [function(v) {
if("Nil" !== v[0]) {
return undefined
}else {
return["Nil"]
}
}, function(v) {
if("Cons" !== v[0]) {
return undefined
}else {
var a_124 = v[1];
if("Nil" !== v[2][0]) {
return undefined
}else {
return["Cons", a_124, ["Nil"]]
}
}
}, function(v) {
if("Cons" !== v[0]) {
return undefined
}else {
var a_121 = v[1];
if("Cons" !== v[2][0]) {
return undefined
}else {
var b_122 = v[2][1];
var cs_123 = v[2][2];
return["Cons", a_121, ["Cons", sep_119, intersperse(sep_119)(["Cons", b_122, cs_123])]]
}
}
}];
for(var i = c.length;i--;) {
var r = c[i](v);
if(r !== undefined) {
return r
}
}
}()
}
}
function intercalate(sep_125) {
return function(xs_126) {
return function() {
var v = xs_126;
var c = [function(v) {
if("Nil" !== v[0]) {
return undefined
}else {
return["Nil"]
}
}, function(v) {
if("Cons" !== v[0]) {
return undefined
}else {
var a_130 = v[1];
if("Nil" !== v[2][0]) {
return undefined
}else {
return a_130
}
}
}, function(v) {
if("Cons" !== v[0]) {
return undefined
}else {
var a_127 = v[1];
if("Cons" !== v[2][0]) {
return undefined
}else {
var b_128 = v[2][1];
var cs_129 = v[2][2];
return Value.append(a_127, Value.append(sep_125, intercalate(sep_125)(["Cons", b_128, cs_129])))
}
}
}];
for(var i = c.length;i--;) {
var r = c[i](v);
if(r !== undefined) {
return r
}
}
}()
}
}
function sort(xs) {
if (xs[0] === "Nil") { return xs; }
if (xs[0] !== "Cons") { throwError(); }
var arr = [];
while (xs[0] === "Cons") {
arr.push(xs[1]);
xs = xs[2];
}
arr.sort(function(a,b) { return a - b});
var out = ["Nil"];
for (var i = arr.length; i--; ) {
out = [ "Cons", arr[i], out ];
}
return out;
}
return {head:head,
tail:tail,
map:map,
foldl:foldl,
foldr:foldr,
foldl1:foldl1,
foldr1:foldr1,
scanl:scanl,
scanl1:scanl1,
filter:filter,
length:length,
reverse:reverse,
concat:concat,
concatMap:concatMap,
and:and,
or:or,
forall:forall,
exists:exists,
sum:sum,
product:product,
maximum:maximum,
minimum:minimum,
partition:partition,
zipWith:zipWith,
zip:zip,
unzip:unzip,
intersperse:intersperse,
intercalate:intercalate,
sort:sort};
}();

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var String = function() {
var properEscape = function(str) {
str.replace('"', "&#34;");
str.replace("&", "&#38;");
str.replace("'", "&#39;");
str.replace("<", "&#60;");
str.replace(">", "&#62;");
return str;
};
var toText = function(elmList) {
var a = [];
while (elmList[0] === "Cons") {
a.push(elmList[1]);
elmList = elmList[2];
}
return String.properEscape(a.join(''));
};
return {toText : toText,
properEscape : properEscape };
}();

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var Text = function() {
var fromString = function(elmList) {
var a = [];
while (elmList[0] === "Cons") {
a.push(elmList[1]);
elmList = elmList[2];
}
return String.properEscape(a.join(''));
};
var addTag = function(tag) { return function(text) {
return '<' + tag + '>' + text + '</' + tag + '>';
};
};
var addStyle = function(style, value) { return function(text) {
return "<span style='" + style + ":" + value + "'>" + text + "</span>";
};
};
var typeface = function(name) { return addStyle('font-family', name); };
var size = function(px) {
return addStyle('font-size', px + 'px');
};
var header = addTag('h1');
var height = function(h) { return addStyle('font-size', h+'em'); }
var italic = addStyle('font-style', 'italic');
var bold = addTag('b');
var color = function(c) {
return addStyle('color', Color.Internal.extract(c));
};
var underline = addStyle('text-decoration', 'underline');
var overline = addStyle('text-decoration', 'overline');
var strikeThrough = addStyle('text-decoration', 'line-through');
var link = function(href) { return function(text) {
return "<a href='" + fromString(href) + "'>" + text + "</a>";
};
};
return {fromString : fromString,
toText: fromString,
header : header,
height : height,
italic : italic,
bold : bold,
underline : underline,
overline : overline,
strikeThrough : strikeThrough,
monospace : typeface('monospace'),
color : color,
link : link };
}();

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var Value = function(){
var Tuple = function() {
var len = arguments.length;
var arr = new Array(len+1);
arr[0] = "Tuple" + arguments.length;
for (var i = len; i--; ) {
arr[i+1] = arguments[i];
}
return arr;
};
var toString = function(v) {
if (typeof v === "boolean") {
return v ? "True" : "False";
} else if (typeof v === "number") {
return v+"";
} else if (v[0]) {
if (v[0].substring(0,5) === "Tuple") {
var output = "";
for (var i = v.length; --i; ) {
output = "," + toString(v[i]) + output;
}
if (output[0] === ",") output = output.substring(1);
return "("+output+")";
} else if (v[0] === "Cons") {
var start = (typeof v[1] === "string") ? '"' : "[";
var end = (typeof v[1] === "string") ? '"' : "]";
var div = (typeof v[1] === "string") ? "" : ",";
var output = start + toString(v[1]);
v = v[2];
while (true) {
if (v[0] === "Cons") {
output += div + toString(v[1]);
v = v[2];
} else {
return output + end;
}
}
} else if (v[0] === "Nil") {
return "[]";
} else {
var output = "";
for (var i = v.length; --i; ) {
output = " " + toString(v[i]) + output
}
output = v[0] + output;
return (v.length > 1) ? "(" + output + ")" : output;
}
}
return v+"";
};
var show = function(v) {
return Text.monospace(String.properEscape(toString(v)));
};
var append = function(xs,ys) {
if (typeof xs === "string" && typeof ys === "string") {
return xs.concat(ys);
}
if (xs[0] === "Nil") {
return ys;
}
var root = ["Cons", xs[1], ["Nil"]];
var curr = root;
xs = xs[2];
while (xs[0]==="Cons") {
curr[2] = ["Cons", xs[1], ["Nil"]];
xs = xs[2];
curr = curr[2];
}
curr[2] = ys;
return root;
};
return {show:show, Tuple:Tuple, append:append};
}();

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var Color = function() {
var create = function(r,g,b,a) {
return { r: Math.round(255*r),
g: Math.round(255*g),
b: Math.round(255*b),
a: a };
};
var extract = function(c) {
if (c.a === 1) {
return 'rgb(' + c.r + ',' + c.g + ',' + c.b + ')';
}
return 'rgba(' + c.r + ',' + c.g + ',' + c.b + ',' + c.a + ')';
};
var rgba = function(r) { return function(g) { return function(b) {
return function(a) { return create(r,g,b,a); }; }; };
};
var rgb = function(r) { return function(g) { return function(b) {
return create(r,g,b,1); }; };
};
return {black: create(0,0,0,1),
white: create(1,1,1,1),
red : create(1,0,0,1),
green: create(0,1,0,1),
blue : create(0,0,1,1),
rgba : rgba,
rgb : rgb,
Internal : { extract:extract }
};
}();

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var Form = function() {
var move = function(x) { return function(y) { return function(form) {
var t = form[1];
return [form[0], [[x + t[0][0], y + t[0][1]], t[1], t[2]]];
};
};
};
var rotate = function(theta) { return function(form) {
var t = form[1];
return [form[0], [t[0], t[1] + 2* Math.PI*theta, t[2]]];
};
};
var scale = function(s) { return function(form) {
var t = form[1];
return [form[0], [t[0], t[1], t[2] * s]];
};
};
var create = function(howToDraw, center) {
return [howToDraw, Transforms.create(center, 0, 1)];
};
var draw = function(form) {
ctx.save();
var trans = form[1];
ctx.translate(trans[0][0], trans[0][1]);
ctx.rotate(trans[1]);
ctx.scale(trans[2], trans[2]);
form[0](ctx);
ctx.restore();
return ctx;
};
return {create:create, move:move, rotate:rotate, scale:scale, draw:draw};
}();

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var Image = function() {
var image = function(src) {
var img = new Image(src);
img.onload = function() {
};
};
}();

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var Line = function() {
var pair = function(a,b) { return [a,b]; };
var create = function(center, ps, theta, s) {
return { center: center, points: ps, theta: theta, scale: s };
};
//// Construction ////
var line = function(ps) {
var parr = [];
while (ps[0] === "Cons") {
parr.push(pair(ps[1][1], ps[1][2]));
ps = ps[2];
}
return create(pair(0,0), parr, 0, 1);
};
//// Atomize ////
var solid = function(color) { return function(line) { return function(ctx) {
ctx.save();
ctx.beginPath();
ctx.translate(line.center[0], line.center[1]);
ctx.rotate(line.theta);
ctx.scale(line.scale, line.scale);
var points = line.points;
var i = points.length;
ctx.moveTo(points[i-1][0], points[i-1][1]);
while (i--) {
ctx.lineTo(points[i][0], points[i][1]);
}
ctx.strokeStyle = Color.Internal.extract(color);
ctx.stroke();
ctx.restore();
return ctx;
};
};
};
var customLine = function(pattern) {
return function(color) { return function(line) {
if (typeof pattern[0] === "string") {
var temp = [];
while (pattern[0] === "Cons") {
temp.push(pattern[1]);
pattern = pattern[2];
}
pattern = temp;
}
if (pattern.length === 0) { pattern = [8,4]; }
return function(ctx) {
ctx.save();
ctx.beginPath();
ctx.translate(line.center[0], line.center[1]);
ctx.rotate(line.theta);
ctx.scale(line.scale, line.scale);
customLineHelp(ctx, pattern, line.points);
ctx.strokeStyle = Color.Internal.extract(color);
ctx.stroke();
ctx.restore();
return ctx;
};
};
};
};
var customLineHelp = function(ctx, pattern, points) {
var i = points.length - 1;
var x0 = points[i][0], y0 = points[i][1];
var x1=0, y1=0, dx=0, dy=0, remaining=0, nx=0, ny=0;
var pindex = 0, plen = pattern.length;
var draw = true, segmentLength = pattern[0];
ctx.moveTo(x0,y0);
while (i--) {
x1 = points[i][0]; y1 = points[i][1];
dx = x1 - x0; dy = y1 - y0;
remaining = Math.sqrt(dx * dx + dy * dy);
while (segmentLength <= remaining) {
x0 += dx * segmentLength / remaining;
y0 += dy * segmentLength / remaining;
ctx[draw ? 'lineTo' : 'moveTo'](x0, y0);
// update starting position
dx = x1 - x0; dy = y1 - y0;
remaining = Math.sqrt(dx * dx + dy * dy);
// update pattern
draw = !draw;
pindex = (pindex + 1) % plen;
segmentLength = pattern[pindex];
}
if (remaining > 0) {
ctx[draw ? 'lineTo' : 'moveTo'](x1, y1);
segmentLength -= remaining;
}
x0 = x1; y0 = y1;
}
};
return {line:line, customLine:customLine, solid:solid,
dashed: customLine([8,4]), dotted: customLine([3,3]) };
}();

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var Shape = function() {
var create = function(center, ps, theta, s) {
return { center: center, points: ps, theta: theta, scale: s };
};
//// Construction ////
var polygon = function(ps) { return function(center) {
var parr = [];
while (ps[0] === "Cons") {
parr.push([ps[1][1], ps[1][2]]);
ps = ps[2];
}
center = [center[1], center[2]];
return create(center, parr, 0, 1);
};
};
var ngon = function(n) { return function(r) { return function(center) {
var ps = [];
for (var i = n; i--;) {
ps.push([r * Math.cos(Math.PI * 2 * i/n),
r * Math.sin(Math.PI * 2 * i/n)]);
}
center = [center[1], center[2]];
return create(center, ps, 0, 1);
};
};
};
var rect = function(w) { return function(h) { return function(center) {
var ps = [[- w/2, - h/2],
[ w/2, - h/2],
[ w/2, h/2],
[- w/2, h/2]];
center = [center[1], center[2]];
return create(center, ps, 0, 1);
};
};
};
var oval = function(w) { return function(h) { return function(center) {
var ps = [];
for (var theta = 2 * Math.PI; theta > 0; theta -= Math.PI /50) {
ps.push([w/2 * Math.cos(theta), h/2 * Math.sin(theta)]);
}
center = [center[1], center[2]];
return create(center, ps, 0, 1);
};
};
};
//// Transforms ////
var move = function(x) { return function(y) { return function(shape) {
var newCenter = [x + shape.center[0],y + shape.center[1]];
return create(newCenter, shape.points, shape.theta, shape.scale);
};
};
};
var rotate = function(theta) { return function(shape) {
var newTheta = shape.theta + 2 * Math.PI * theta;
return create(shape.center, shape.points, newTheta, shape.scale);
};
};
var scale = function(s) { return function(shape) {
return create(shape.center, shape.points, shape.theta, shape.scale * s);
};
};
//// Atomize ////
var draw = function(fill) {
return function(color) { return function(shape) { return function(ctx) {
ctx.save();
ctx.translate(shape.center[0], shape.center[1]);
ctx.rotate(shape.theta);
ctx.scale(shape.scale, shape.scale);
ctx.beginPath();
var points = shape.points;
ctx.moveTo(points[0][0], points[0][1]);
for (var i = points.length; i--; ) {
ctx.lineTo(points[i][0], points[i][1]);
}
ctx.closePath();
if (fill) {
ctx.fillStyle = Color.Internal.extract(color);
ctx.fill();
} else {
ctx.strokeStyle = Color.Internal.extract(color);
ctx.stroke();
}
ctx.restore();
return ctx;
};
};
};
};
var customOutline = function(p) {
return function(c) { return function(shape) {
shape.points.push(shape.points[0]);
return Line.customLine(p)(c)(shape);
};
};
};
return {polygon:polygon, ngon:ngon, rect:rect, oval:oval,
move:move, rotate:rotate, scale:scale,
filled:draw(true), outlined:draw(false), customOutline:customOutline };
}();

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var Elm = function() {
var input = function(base) {
this.id = Guid.guid();
this.value = base;
this.step = function(eid,v) {
var changed = eid === this.id;
if (changed) { this.value = v; }
return changed;
};
};
var lift = function(func,args) {
this.id = Guid.guid();
this.value = null;
args.reverse();
this.recalc = function() {
var f = func;
for (var i = args.length; i--; ) {
f = f(args[i].value);
}
this.value = f;
};
this.recalc();
this.step = function(id,v) {
if (this.hasOwnProperty(id)) return false;
var changed = false;
for (var i = args.length; i--; ) {
changed = changed || args[i].step(id,v);
}
changed ? (this.recalc()) : (this[id] = true);
return changed;
};
};
var fold = function(func,base,input) {
this.id = Guid.guid();
this.value = base;
this.step = function(id,v) {
if (this.hasOwnProperty(id)) return false;
var changed = input.step(id,v);
if (changed) { this.value = func(input.value)(this.value); }
else { this[id] = true; }
return changed;
};
};
return {Input: function(x) {return new input(x);},
Lift: function(f,xs){return new lift(f,xs);},
Fold: function(f,b,x){return new fold(f,b,x);}
};
}();
var Dispatcher = function() {
var program = null;
var update = function(context, newNode, oldNode) {
if (oldNode.style && newNode.style) {
oldNode.style.width = newNode.style.width;
oldNode.style.height = newNode.style.height;
}
if (newNode.hasOwnProperty('isElmLeaf') &&
oldNode.hasOwnProperty('isElmLeaf')) {
newNode.id = oldNode.id;
if (!newNode.isEqualNode(oldNode)) {
context.replaceChild(newNode, oldNode);
}
return;
}
if (newNode.nodeName === "CANVAS") {
context.replaceChild(newNode, oldNode);
return;
}
var nlist = newNode.childNodes;
var olist = oldNode.childNodes;
if (nlist.length !== olist.length) {
context.replaceChild(newNode, oldNode);
return;
}
for (var i = nlist.length; i--; ) {
update(oldNode, nlist[i], olist[i]);
}
};
var correctSize = function(e) {
var kids = e.childNodes;
var len = kids.length;
if (e.hasOwnProperty('isElmLeaf')) {
var w = e.style.width === "" ?
0 : e.style.width.slice(0,-2) - 0;
var h = e.style.height === "" ?
0 : e.style.height.slice(0,-2) - 0;
return [w, h];
}
if (len === 1) {
var dim = correctSize(kids[0]);
if (e.style.width !== "") { dim[0] = e.style.width.slice(0,-2) - 0; }
if (e.style.height !== "") { dim[1] = e.style.height.slice(0,-2) - 0; }
if (dim[0] !== 0) { e.style.width = dim[0] + "px"; }
if (dim[1] !== 0) { e.style.height = dim[1] + "px"; }
return dim;
}
var wmax = 0, hmax = 0, wsum = 0, hsum = 0;
var hasWidth = true, hasHeight = true, dim = null;
while (len--) {
dim = correctSize(kids[len]);
wmax = Math.max(wmax, dim[0]);
hmax = Math.max(hmax, dim[1]);
wsum += dim[0];
hsum += dim[1];
hasWidth = hasWidth && dim[0] > 0;
hasHeight = hasHeight && dim[1] > 0;
}
var w = wmax, h = hmax, dir = e.elmFlowDirection;
if (dir === "X") { w = hasWidth ? wsum : 0; }
if (dir === "Y") { h = hasHeight ? hsum : 0; }
if (w > 0) e.style.width = w + "px";
if (h > 0) e.style.height = h + "px";
return [w,h];
};
var initialize = function() {
/*try {*/ program = main(); //}
//catch (e) { program = text("An Error Occured: Better Messages to come."); }
if (!program.hasOwnProperty('step')) {
program = Elm.Input(program);
}
var content = document.getElementById('content');
content.appendChild(program.value);
correctSize(content);
var w = document.getElementById('widthChecker').offsetWidth;
if (w !== window.innerWidth) {
Dispatcher.notify(Window.dimensions.id, Value.Tuple(w, window.innerHeight));
}
};
var adjust = function() {
var content = document.getElementById('content');
correctSize(content);
}
var notify = function(id, v) {
if (program.step(id,v)) {
var content = document.getElementById('content');
update(content, program.value, content.children[0]);
correctSize(content);
}
};
return {initialize:initialize, notify:notify, adjust:adjust};
}();

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var Signal = function() {
var addListener = function() {
if(document.addEventListener) {
return function(element, event, handler) {
element.addEventListener(event, handler, false);
};
}
else {
return function(element, event, handler) {
element.attachEvent('on' + event, handler);
};
}
}();
var Mouse = function() {
var position = Elm.Input(Value.Tuple(0,0));
var isDown = Elm.Input(false);
var isClicked = Elm.Input(false);
function getXY(e) {
var posx = 0;
var posy = 0;
if (!e) var e = window.event;
if (e.pageX || e.pageY) {
posx = e.pageX;
posy = e.pageY;
} else if (e.clientX || e.clientY) {
posx = e.clientX + document.body.scrollLeft +
document.documentElement.scrollLeft;
posy = e.clientY + document.body.scrollTop +
document.documentElement.scrollTop;
}
return Value.Tuple(posx, posy);
}
addListener(document, 'click', function(e) {
Dispatcher.notify(isClicked.id, true);
Dispatcher.notify(isClicked.id, false);
});
addListener(document, 'mousedown', function(e) {
Dispatcher.notify(isDown.id, true); });
addListener(document, 'mouseup', function(e) {
Dispatcher.notify(isDown.id, false); });
addListener(document, 'mousemove', function(e) {
Dispatcher.notify(position.id, getXY(e)); });
return {position: position,
x: Elm.Lift(function(p){return p[1];},[position]),
y: Elm.Lift(function(p){return p[2];},[position]),
isClicked: isClicked,
isDown: isDown
};
}();
var Time = function() {
var every = function(t) {
t *= 1000;
var clock = Elm.Input(0);
var time = 0;
setInterval(function() {
time += t;
Dispatcher.notify(clock.id, time/1000);
}, t);
return clock;
};
var after = function(t) {
t *= 1000;
var thread = Elm.Input(false);
setTimeout(function() { Dispatcher.notify(thread.id, true); }, t);
return thread;
};
var before = function(t) {
t *= 1000;
var thread = Elm.Input(true);
setTimeout(function() { Dispatcher.notify(thread.id, false); }, t);
return thread;
};
return {every:every,after:after,before:before};
}();
var Window = function() {
var dimensions = Elm.Input(Value.Tuple(window.innerWidth,window.innerHeight));
addListener(window, 'resize', function(e) {
var w = document.getElementById('widthChecker').offsetWidth;
Dispatcher.notify(dimensions.id, Value.Tuple(w, window.innerHeight));
});
return {dimensions:dimensions,
width : Elm.Lift(function(p){return p[1];},[dimensions]),
height: Elm.Lift(function(p){return p[2];},[dimensions]) };
}();
var HTTP = function() {
var fetch = function(how) { return function(url) {
var thread = Elm.Input("Requesting Data...");
if (window.XMLHttpRequest) {
request = new XMLHttpRequest();
} else if (window.ActiveXObject) {
request = new ActiveXObject("Microsoft.XMLHTTP");
}
request.onreadystatechange = function(e) {
var result = "";
if (request.readyState === 4) {
result = request.status === 200 ? request.responseText
: request.statusText;
} else {
result = 'Request Failed';
}
Dispatcher.notify(thread.id, result);
};
request.open(how, String.toText(url), true);
request.send(null);
return thread;
};
};
return { get : fetch("GET"), post : fetch("POST") };
}();
var Random = function() {
var inRange = function(min) { return function(max) {
return Elm.Input(Math.floor(Math.random() * (max-min+1)) + min);
};
};
var randomize = function(min) { return function(max) { return function(signal) {
return Elm.Lift(function(x) { return Math.floor(Math.random() * (max-min+1)) + min;},[signal]);
};
};
};
return { inRange:inRange, randomize:randomize };
}();
var Input = function() {
function toElmString(str) {
var out = ["Nil"];
for (var i = str.length; i--; ) {
out = ["Cons", str[i], out];
}
return out;
}
var newTextInput = function(elem, ghostText) {
elem.isElmLeaf = true;
var str = Elm.Input(["Nil"]);
addListener(elem, 'keyup', function(e) {
Dispatcher.notify(str.id, toElmString(elem.value));
elem.focus();
});
return Value.Tuple(elem, str);
};
var newElement = function(name) {
var e = document.createElement(name);
e.id = Guid.guid();
return e;
};
var textArea = function(cols) { return function(rows) {
var textarea = newElement('textarea');
textarea.rows = rows;
textarea.cols = cols;
return newTextInput(textarea, "");
};
};
var textField = function(ghostText) {
var field = newElement('input');
field.type = 'text';
return newTextInput(field, ghostText);
};
var password = function(ghostText) {
var field = newElement('input');
field.type = 'password';
return newTextInput(field, ghostText);
};
var checkbox = function(checked) {
var box = newElement('input');
box.type = 'checkbox';
box.checked = checked;
var status = Elm.Input(checked);
console.log(checked, box);
addListener(box, 'change', function(e) {
Dispatcher.notify(status.id, box.checked);
});
return Value.Tuple(box, status);
};
var dropDown = function(options) {
var slct = newElement('select');
var opts = [];
while (options[0] === "Cons") {
var opt = newElement('option');
var str = Text.toText(options[1][1]);
opt.value = str;
opt.innerHTML = str;
slct.appendChild(opt);
opts.push(options[1][2]);
options = options[2];
}
var status = Elm.Input(opts[0]);
addListener(slct, 'change', function(e) {
Dispatcher.notify(status.id, opts[slct.selectedIndex]);
});
return Value.Tuple(slct, status);
};
var stringDropDown = function(opts) {
return dropDown(List.map (function(x) {return Value.Tuple(x,x);}) (opts));
};
return {textArea:textArea, textField:textField,
password:password, checkbox:checkbox,
dropDown:dropDown, stringDropDown:stringDropDown};
}();
return {Mouse:Mouse, Time:Time, Window:Window,
HTTP:HTTP, Random:Random, Input:Input };
}();