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index.html
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<!doctype html>
<head>
<style>
body {
font-family: sans-serif;
color: #333333;
}
.demo, .noedit {
font-family: monospace;
font-size : 14px;
padding : 2px;
margin : 0px;
border: 1px solid #ccc;
display : inline-block;
border-radius: 3px;
}
.demoInput {
background-color: rgb(255, 255, 244);
}
.demoOutput {
background-color: rgb(172, 243, 172);
}
.demoError {
background-color: rgb(248, 151, 151);
}
.demoNull {
background-color: rgb(224, 203, 149);
}
.demoIO, .noedit {
border: 1px solid #ccc;
border-radius: 3px;
display: inline-block;
padding: 5px;
background-color: #f8f8f8;
}
.noedit {
display: block;
}
.markdown {
display: inline-block;
background: #fff;
border-radius: 3px;
padding: 3px;
font-size: 14px;
line-height: 1.6;
font: 13px Helvetica, arial, freesans, clean, sans-serif;
border: 1px solid #CACACA;
margin: 0px auto auto;
padding: 0px 30px 0px 30px;
text-align: left;
}
.markdown p {
max-width: 600px;
}
#centerer {
text-align: center;
padding: 0px;
margin: 0px;
}
.markdown>h2, .markdown>h3,
.markdown>h4, .markdown>h5, .markdown>h6 {
border-bottom: 1px solid #ccc;
}
.container {
padding: 3px;
background: #EEE;
border-radius: 3px;
margin: 0px;
display: inline-block;
margin-bottom: 200px;
}
#footer {
font-size: 10px;
text-align: center;
}
</style>
<script>var require = function (file, cwd) {
var resolved = require.resolve(file, cwd || '/');
var mod = require.modules[resolved];
if (!mod) throw new Error(
'Failed to resolve module ' + file + ', tried ' + resolved
);
var cached = require.cache[resolved];
var res = cached? cached.exports : mod();
return res;
};
require.paths = [];
require.modules = {};
require.cache = {};
require.extensions = [".js",".coffee",".json"];
require._core = {
'assert': true,
'events': true,
'fs': true,
'path': true,
'vm': true
};
require.resolve = (function () {
return function (x, cwd) {
if (!cwd) cwd = '/';
if (require._core[x]) return x;
var path = require.modules.path();
cwd = path.resolve('/', cwd);
var y = cwd || '/';
if (x.match(/^(?:\.\.?\/|\/)/)) {
var m = loadAsFileSync(path.resolve(y, x))
|| loadAsDirectorySync(path.resolve(y, x));
if (m) return m;
}
var n = loadNodeModulesSync(x, y);
if (n) return n;
throw new Error("Cannot find module '" + x + "'");
function loadAsFileSync (x) {
x = path.normalize(x);
if (require.modules[x]) {
return x;
}
for (var i = 0; i < require.extensions.length; i++) {
var ext = require.extensions[i];
if (require.modules[x + ext]) return x + ext;
}
}
function loadAsDirectorySync (x) {
x = x.replace(/\/+$/, '');
var pkgfile = path.normalize(x + '/package.json');
if (require.modules[pkgfile]) {
var pkg = require.modules[pkgfile]();
var b = pkg.browserify;
if (typeof b === 'object' && b.main) {
var m = loadAsFileSync(path.resolve(x, b.main));
if (m) return m;
}
else if (typeof b === 'string') {
var m = loadAsFileSync(path.resolve(x, b));
if (m) return m;
}
else if (pkg.main) {
var m = loadAsFileSync(path.resolve(x, pkg.main));
if (m) return m;
}
}
return loadAsFileSync(x + '/index');
}
function loadNodeModulesSync (x, start) {
var dirs = nodeModulesPathsSync(start);
for (var i = 0; i < dirs.length; i++) {
var dir = dirs[i];
var m = loadAsFileSync(dir + '/' + x);
if (m) return m;
var n = loadAsDirectorySync(dir + '/' + x);
if (n) return n;
}
var m = loadAsFileSync(x);
if (m) return m;
}
function nodeModulesPathsSync (start) {
var parts;
if (start === '/') parts = [ '' ];
else parts = path.normalize(start).split('/');
var dirs = [];
for (var i = parts.length - 1; i >= 0; i--) {
if (parts[i] === 'node_modules') continue;
var dir = parts.slice(0, i + 1).join('/') + '/node_modules';
dirs.push(dir);
}
return dirs;
}
};
})();
require.alias = function (from, to) {
var path = require.modules.path();
var res = null;
try {
res = require.resolve(from + '/package.json', '/');
}
catch (err) {
res = require.resolve(from, '/');
}
var basedir = path.dirname(res);
var keys = (Object.keys || function (obj) {
var res = [];
for (var key in obj) res.push(key);
return res;
})(require.modules);
for (var i = 0; i < keys.length; i++) {
var key = keys[i];
if (key.slice(0, basedir.length + 1) === basedir + '/') {
var f = key.slice(basedir.length);
require.modules[to + f] = require.modules[basedir + f];
}
else if (key === basedir) {
require.modules[to] = require.modules[basedir];
}
}
};
(function () {
var process = {};
var global = typeof window !== 'undefined' ? window : {};
var definedProcess = false;
require.define = function (filename, fn) {
if (!definedProcess && require.modules.__browserify_process) {
process = require.modules.__browserify_process();
definedProcess = true;
}
var dirname = require._core[filename]
? ''
: require.modules.path().dirname(filename)
;
var require_ = function (file) {
var requiredModule = require(file, dirname);
var cached = require.cache[require.resolve(file, dirname)];
if (cached && cached.parent === null) {
cached.parent = module_;
}
return requiredModule;
};
require_.resolve = function (name) {
return require.resolve(name, dirname);
};
require_.modules = require.modules;
require_.define = require.define;
require_.cache = require.cache;
var module_ = {
id : filename,
filename: filename,
exports : {},
loaded : false,
parent: null
};
require.modules[filename] = function () {
require.cache[filename] = module_;
fn.call(
module_.exports,
require_,
module_,
module_.exports,
dirname,
filename,
process,
global
);
module_.loaded = true;
return module_.exports;
};
};
})();
require.define("path",Function(['require','module','exports','__dirname','__filename','process','global'],"function filter (xs, fn) {\n var res = [];\n for (var i = 0; i < xs.length; i++) {\n if (fn(xs[i], i, xs)) res.push(xs[i]);\n }\n return res;\n}\n\n// resolves . and .. elements in a path array with directory names there\n// must be no slashes, empty elements, or device names (c:\\) in the array\n// (so also no leading and trailing slashes - it does not distinguish\n// relative and absolute paths)\nfunction normalizeArray(parts, allowAboveRoot) {\n // if the path tries to go above the root, `up` ends up > 0\n var up = 0;\n for (var i = parts.length; i >= 0; i--) {\n var last = parts[i];\n if (last == '.') {\n parts.splice(i, 1);\n } else if (last === '..') {\n parts.splice(i, 1);\n up++;\n } else if (up) {\n parts.splice(i, 1);\n up--;\n }\n }\n\n // if the path is allowed to go above the root, restore leading ..s\n if (allowAboveRoot) {\n for (; up--; up) {\n parts.unshift('..');\n }\n }\n\n return parts;\n}\n\n// Regex to split a filename into [*, dir, basename, ext]\n// posix version\nvar splitPathRe = /^(.+\\/(?!$)|\\/)?((?:.+?)?(\\.[^.]*)?)$/;\n\n// path.resolve([from ...], to)\n// posix version\nexports.resolve = function() {\nvar resolvedPath = '',\n resolvedAbsolute = false;\n\nfor (var i = arguments.length; i >= -1 && !resolvedAbsolute; i--) {\n var path = (i >= 0)\n ? arguments[i]\n : process.cwd();\n\n // Skip empty and invalid entries\n if (typeof path !== 'string' || !path) {\n continue;\n }\n\n resolvedPath = path + '/' + resolvedPath;\n resolvedAbsolute = path.charAt(0) === '/';\n}\n\n// At this point the path should be resolved to a full absolute path, but\n// handle relative paths to be safe (might happen when process.cwd() fails)\n\n// Normalize the path\nresolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {\n return !!p;\n }), !resolvedAbsolute).join('/');\n\n return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';\n};\n\n// path.normalize(path)\n// posix version\nexports.normalize = function(path) {\nvar isAbsolute = path.charAt(0) === '/',\n trailingSlash = path.slice(-1) === '/';\n\n// Normalize the path\npath = normalizeArray(filter(path.split('/'), function(p) {\n return !!p;\n }), !isAbsolute).join('/');\n\n if (!path && !isAbsolute) {\n path = '.';\n }\n if (path && trailingSlash) {\n path += '/';\n }\n \n return (isAbsolute ? '/' : '') + path;\n};\n\n\n// posix version\nexports.join = function() {\n var paths = Array.prototype.slice.call(arguments, 0);\n return exports.normalize(filter(paths, function(p, index) {\n return p && typeof p === 'string';\n }).join('/'));\n};\n\n\nexports.dirname = function(path) {\n var dir = splitPathRe.exec(path)[1] || '';\n var isWindows = false;\n if (!dir) {\n // No dirname\n return '.';\n } else if (dir.length === 1 ||\n (isWindows && dir.length <= 3 && dir.charAt(1) === ':')) {\n // It is just a slash or a drive letter with a slash\n return dir;\n } else {\n // It is a full dirname, strip trailing slash\n return dir.substring(0, dir.length - 1);\n }\n};\n\n\nexports.basename = function(path, ext) {\n var f = splitPathRe.exec(path)[2] || '';\n // TODO: make this comparison case-insensitive on windows?\n if (ext && f.substr(-1 * ext.length) === ext) {\n f = f.substr(0, f.length - ext.length);\n }\n return f;\n};\n\n\nexports.extname = function(path) {\n return splitPathRe.exec(path)[3] || '';\n};\n\nexports.relative = function(from, to) {\n from = exports.resolve(from).substr(1);\n to = exports.resolve(to).substr(1);\n\n function trim(arr) {\n var start = 0;\n for (; start < arr.length; start++) {\n if (arr[start] !== '') break;\n }\n\n var end = arr.length - 1;\n for (; end >= 0; end--) {\n if (arr[end] !== '') break;\n }\n\n if (start > end) return [];\n return arr.slice(start, end - start + 1);\n }\n\n var fromParts = trim(from.split('/'));\n var toParts = trim(to.split('/'));\n\n var length = Math.min(fromParts.length, toParts.length);\n var samePartsLength = length;\n for (var i = 0; i < length; i++) {\n if (fromParts[i] !== toParts[i]) {\n samePartsLength = i;\n break;\n }\n }\n\n var outputParts = [];\n for (var i = samePartsLength; i < fromParts.length; i++) {\n outputParts.push('..');\n }\n\n outputParts = outputParts.concat(toParts.slice(samePartsLength));\n\n return outputParts.join('/');\n};\n\n//@ sourceURL=path"
));
require.define("__browserify_process",Function(['require','module','exports','__dirname','__filename','process','global'],"var process = module.exports = {};\n\nprocess.nextTick = (function () {\n var canSetImmediate = typeof window !== 'undefined'\n && window.setImmediate;\n var canPost = typeof window !== 'undefined'\n && window.postMessage && window.addEventListener\n ;\n\n if (canSetImmediate) {\n return function (f) { return window.setImmediate(f) };\n }\n\n if (canPost) {\n var queue = [];\n window.addEventListener('message', function (ev) {\n if (ev.source === window && ev.data === 'browserify-tick') {\n ev.stopPropagation();\n if (queue.length > 0) {\n var fn = queue.shift();\n fn();\n }\n }\n }, true);\n\n return function nextTick(fn) {\n queue.push(fn);\n window.postMessage('browserify-tick', '*');\n };\n }\n\n return function nextTick(fn) {\n setTimeout(fn, 0);\n };\n})();\n\nprocess.title = 'browser';\nprocess.browser = true;\nprocess.env = {};\nprocess.argv = [];\n\nprocess.binding = function (name) {\n if (name === 'evals') return (require)('vm')\n else throw new Error('No such module. (Possibly not yet loaded)')\n};\n\n(function () {\n var cwd = '/';\n var path;\n process.cwd = function () { return cwd };\n process.chdir = function (dir) {\n if (!path) path = require('path');\n cwd = path.resolve(dir, cwd);\n };\n})();\n\n//@ sourceURL=__browserify_process"
));
require.define("/node_modules/hyperscript/node_modules/hyperscript/package.json",Function(['require','module','exports','__dirname','__filename','process','global'],"module.exports = {}\n//@ sourceURL=/node_modules/hyperscript/node_modules/hyperscript/package.json"
));
require.define("/node_modules/hyperscript/index.js",Function(['require','module','exports','__dirname','__filename','process','global'],";(function () {\n\nvar ClassList = require(\"class-list\")\n\nfunction h() {\n var args = [].slice.call(arguments), e = null\n function item (l) {\n var r\n function parseClass (string) {\n var m = string.split(/([\\.#]?[a-zA-Z0-9_-]+)/)\n m.forEach(function (v) {\n var s = v.substring(1,v.length)\n if(!v) return\n if(!e)\n e = document.createElement(v)\n else if (v[0] === '.')\n ClassList(e).add(s)\n else if (v[0] === '#')\n e.setAttribute('id', s)\n })\n }\n\n if(l == null)\n ;\n else if('string' === typeof l) {\n if(!e)\n parseClass(l)\n else\n e.appendChild(r = document.createTextNode(l))\n }\n else if('number' === typeof l\n || 'boolean' === typeof l\n || l instanceof Date\n || l instanceof RegExp ) {\n e.appendChild(r = document.createTextNode(l.toString()))\n }\n //there might be a better way to handle this...\n else if (Array.isArray(l))\n l.forEach(item)\n else if(l instanceof Node)\n e.appendChild(r = l)\n else if(l instanceof Text)\n e.appendChild(r = l)\n else if ('object' === typeof l) {\n for (var k in l) {\n if('function' === typeof l[k]) {\n if(/^on\\w+/.test(k)) {\n e.addEventListener(k.substring(2), l[k])\n } else {\n e[k] = l[k]()\n l[k](function (v) {\n e[k] = v\n })\n }\n }\n else if(k === 'style') {\n for (var s in l[k]) (function(s, v) {\n if('function' === typeof v) {\n e.style.setProperty(s, v())\n v(function (val) {\n e.style.setProperty(s, val)\n })\n } else\n e.style.setProperty(s, l[k][s])\n })(s, l[k][s])\n } else\n e[k] = l[k]\n }\n } else if ('function' === typeof l) {\n //assume it's an observable!\n var v = l()\n e.appendChild(r = v instanceof Node ? v : document.createTextNode(v))\n\n l(function (v) {\n if(v instanceof Node && r.parentElement)\n r.parentElement.replaceChild(v, r), r = v\n else\n r.textContent = v\n })\n\n }\n\n return r\n }\n while(args.length)\n item(args.shift())\n\n return e\n}\n\nif(typeof module === 'object')\n module.exports = h\nelse\n this.hyperscript = h\n})()\n\n//@ sourceURL=/node_modules/hyperscript/index.js"
));
require.define("/node_modules/hyperscript/node_modules/class-list/package.json",Function(['require','module','exports','__dirname','__filename','process','global'],"module.exports = {\"main\":\"index\"}\n//@ sourceURL=/node_modules/hyperscript/node_modules/class-list/package.json"
));
require.define("/node_modules/hyperscript/node_modules/class-list/index.js",Function(['require','module','exports','__dirname','__filename','process','global'],"// contains, add, remove, toggle\n\nmodule.exports = ClassList\n\nfunction ClassList(elem) {\n var cl = elem.classList\n\n if (cl) {\n return cl\n }\n\n var classList = {\n add: add\n , remove: remove\n , contains: contains\n , toggle: toggle\n , toString: $toString\n , length: 0\n , item: item\n }\n\n return classList\n\n function add(token) {\n var list = getTokens()\n if (list.indexOf(token) > -1) {\n return\n }\n list.push(token)\n setTokens(list)\n }\n\n function remove(token) {\n var list = getTokens()\n , index = list.indexOf(token)\n\n if (index === -1) {\n return\n }\n\n list.splice(index, 1)\n setTokens(list)\n }\n\n function contains(token) {\n return getTokens().indexOf(token) > -1\n }\n\n function toggle(token) {\n if (contains(token)) {\n remove(token)\n return false\n } else {\n add(token)\n return true\n }\n }\n\n function $toString() {\n return elem.className\n }\n\n function item(index) {\n var tokens = getTokens()\n return tokens[index] || null\n }\n\n function getTokens() {\n var className = elem.className\n\n return className.split(\" \").filter(isTruthy)\n }\n\n function setTokens(list) {\n var length = list.length\n\n elem.className = list.join(\" \")\n classList.length = length\n\n for (var i = 0; i < list.length; i++) {\n classList[i] = list[i]\n }\n\n delete list[length]\n }\n}\n\nfunction isTruthy(value) {\n return !!value\n}\n//@ sourceURL=/node_modules/hyperscript/node_modules/class-list/index.js"
));
require.define("/tmp.js",Function(['require','module','exports','__dirname','__filename','process','global'],"var funx = [\nfunction () {\nvar h = require('hyperscript')\nh('div#page',\n h('div#header',\n h('h1.classy', 'h', { style: {'background-color': '#22f'} })),\n h('div#menu', { style: {'background-color': '#2f2'} },\n h('ul',\n h('li', 'one'),\n h('li', 'two'),\n h('li', 'three'))),\n h('h2', 'content title', { style: {'background-color': '#f22'} }),\n h('p', \n \"so it's just like a templating engine,\\n\",\n \"but easy to use inline with javascript\\n\"),\n h('p', \n \"the intention is for this to be used to create\\n\",\n \"reusable, interactive html widgets. \"))\n},\nfunction () {\nvar h = require('hyperscript')\nh('a', {href: 'https://npm.im/hyperscript'}, 'hyperscript')\n},\nfunction () {\nvar h = require('hyperscript')\nh('a', {href: '#', \n onclick: function (e) {\n alert('you are 1,000,000th visitor!')\n e.preventDefault()\n }\n}, 'click here to win a prize')\n},\nfunction () {\nvar h = require('hyperscript')\nh('h1.fun', {style: {'font-family': 'Comic Sans MS'}}, 'Happy Birthday!')\n},\nfunction () {\nvar h = require('hyperscript')\nvar obj = {\n a: 'Apple',\n b: 'Banana',\n c: 'Cherry',\n d: 'Durian',\n e: 'Elder Berry'\n}\nh('table',\n h('tr', h('th', 'letter'), h('th', 'fruit')),\n Object.keys(obj).map(function (k) {\n return h('tr', \n h('th', k),\n h('td', obj[k])\n )\n })\n)\n}\n];\n\n//@ sourceURL=/tmp.js"
));
require("/tmp.js");
</script>
</head>
<body>
<div id=centerer>
<div class=container><div class=markdown>
<h1>HyperScript</h1>
<p>Create HyperText with JavaScript.</p>
<p><a href="http://dominictarr.github.com/hyperscript">Interactive Demo</a></p>
<h2>Example</h2>
<pre><code class="lang-js">var h = require('hyperscript')
h('div#page',
h('div#header',
h('h1.classy', 'h', { style: {'background-color': '#22f'} })),
h('div#menu', { style: {'background-color': '#2f2'} },
h('ul',
h('li', 'one'),
h('li', 'two'),
h('li', 'three'))),
h('h2', 'content title', { style: {'background-color': '#f22'} }),
h('p',
"so it's just like a templating engine,\n",
"but easy to use inline with javascript\n"),
h('p',
"the intention is for this to be used to create\n",
"reusable, interactive html widgets. "))</code></pre>
<h2>h (tag, attrs, [text?, Elements?,...])</h2>
<p>Create an <code>HTMLElement</code>. first argument must be the tag name.</p>
<h3>classes & id</h3>
<p>If the tag name is of form <code>name.class1.class2#id</code> that is a short cut
for setting the class and id.</p>
<h3>Attributes</h3>
<p>If an <code>{}</code> object is passed in, it's values will be used to set attributes.</p>
<pre><code class="lang-js">var h = require('hyperscript')
h('a', {href: 'https://npm.im/hyperscript'}, 'hyperscript')</code></pre>
<h3>events</h3>
<p>If an attribute is a function, then it will be registered as an event listener.</p>
<pre><code class="lang-js">var h = require('hyperscript')
h('a', {href: '#',
onclick: function (e) {
alert('you are 1,000,000th visitor!')
e.preventDefault()
}
}, 'click here to win a prize')</code></pre>
<h3>styles</h3>
<p>If an attribute has a style property, then that will be handled specially.</p>
<pre><code class="lang-js">var h = require('hyperscript')
h('h1.fun', {style: {'font-family': 'Comic Sans MS'}}, 'Happy Birthday!')</code></pre>
<p>You may pass in attributes in multiple positions, it's no problem!</p>
<h3>children - string</h3>
<p>If an argument is a string, a TextNode is created in that position.</p>
<h3>children - HTMLElement</h3>
<p>If a argument is a <code>Node</code> (or <code>HTMLElement</code>), for example, the return value of a call to <code>h</code>
thats cool too.</p>
<h3>children - null.</h3>
<p>This is just ignored.</p>
<h3>children - Array</h3>
<p>Each item in the array is treated like a ordinary child. (string or HTMLElement)
this is uesful when you want to iterate over an object:</p>
<pre><code>var h = require('hyperscript')
var obj = {
a: 'Apple',
b: 'Banana',
c: 'Cherry',
d: 'Durian',
e: 'Elder Berry'
}
h('table',
h('tr', h('th', 'letter'), h('th', 'fruit')),
Object.keys(obj).map(function (k) {
return h('tr',
h('th', k),
h('td', obj[k])
)
})
)</code></pre>
<h2>License</h2>
<p>MIT</p>
</div></div>
</div>
<div id=footer>
created with <a href=https://github.com/dominictarr/demonstrate>demonstrate</a>
</div>
<script>;(function () {
;(function () {
function h() {
var args = [].slice.call(arguments), e = null
function item (l) {
var r
function parseClass (string) {
var m = string.split(/([\.#]?[a-zA-Z0-9_-]+)/)
m.forEach(function (v) {
var s = v.substring(1,v.length)
if(!v) return
if(!e)
e = document.createElement(v)
else if (v[0] === '.')
e.classList.add(s)
else if (v[0] === '#')
e.setAttribute('id', s)
})
}
if(l == null)
;
else if('string' === typeof l) {
if(!e)
parseClass(l)
else
e.appendChild(r = document.createTextNode(l))
}
else if('number' === typeof l
|| 'boolean' === typeof l
|| l instanceof Date
|| l instanceof RegExp ) {
e.appendChild(r = document.createTextNode(l.toString()))
}
//there might be a better way to handle this...
else if (Array.isArray(l))
l.forEach(item)
else if(l instanceof Node)
e.appendChild(r = l)
else if(l instanceof Text)
e.appendChild(r = l)
else if ('object' === typeof l) {
for (var k in l) {
if('function' === typeof l[k]) {
if(/^on\w+/.test(k)) {
e.addEventListener(k, l[k])
} else {
e[k] = l[k]()
l[k](function (v) {
e[k] = v
})
}
}
else if(k === 'style') {
for (var s in l[k]) (function(s, v) {
if('function' === typeof v) {
e.style.setProperty(s, v())
v(function (val) {
e.style.setProperty(s, val)
})
} else
e.style.setProperty(s, l[k][s])
})(s, l[k][s])
} else
e[k] = l[k]
}
} else if ('function' === typeof l) {
//assume it's an observable!
var v = l()
e.appendChild(r = v instanceof Node ? v : document.createTextNode(v))
l(function (v) {
if(v instanceof Node && r.parentElement)
r.parentElement.replaceChild(v, r), r = v
else
r.textContent = v
})
}
return r
}
while(args.length)
item(args.shift())
return e
}
if(typeof module === 'object')
module.exports = h
else
this.hyperscript = h
})()
;(function () {
//---util-funtions------
function all(ary, val) {
for(var k in ary)
ary[k](val)
}
function remove(ary, item) {
delete ary[ary.indexOf(item)]
}
/*
##value
An observable that stores a value.
*/
function value () {
var _val, listeners = []
return function (val) {
return (
get(val) ? _val
: set(val) ? all(listeners, _val = val)
: (listeners.push(val), function () {
remove(listeners, val)
})
)}}
/*
##property
observe a property of an object, works with scuttlebutt.
could change this to work with backbone Model - but it would become ugly.
*/
function get(val) {
//void(0) is a trick to get a true undefined value, even if user has overwrit
return undefined === val
}
/*
### set(val) _(private)_
return true if this call is a set (a non function is supplied)
set(val) assumes you have already checked get(val)
if the call is neither a get or a set, a function is passed, it's a listen.
*/
function set(val) {
return 'function' !== typeof val
}
/*
now, lets rewrite our first example
*/
function property (model, key) {
return function (val) {
return (
get(val) ? model.get(key) :
set(val) ? model.set(key, val) :
(model.on('change:'+key, val), function () {
model.removeListener('change:'+key, val)
})
)}}
//^ if written in this style, always ends )}}
/*
note the use of the elvis operator `?:` in chained else-if formation,
and also the comma operator `,` which evaluates each part and then
returns the last value.
only 8 lines! that isn't much for what this baby can do!
*/
function transform (observable, down, up) {
return function (val) {
return (
get(val) ? down(observable())
: set(val) ? observable((up || down)(val))
: observable(function (_val) { val(down(_val)) })
)}}
function not(observable) {
return transform(observable, function (v) { return !v })
}
function listen (element, event, attr, listener) {
function onEvent () {
listener(element[attr])
}
element.addEventListener(event, onEvent, false)
return function () {
element.removeEventListener(event, onEvent, false)
}
}
function attribute(element, attr, event) {
attr = attr || 'value'; event = event || 'input'
return function (val) {
return (
get(val) ? element[attr]
: set(val) ? element[attr] = val
: listen(element, event, attr, val)
)}}
function html (element) {
return attribute(element, 'innerHTML', false) //read only
}
function error (message) {
throw new Error(message)
}
function compute (observables, compute) {
function getAll() {
return compute.apply(null, observables.map(function (e) {return e()}))
}
return function (val) {
return (
get(val) ? getAll()
: set(val) ? error('read-only')
: observables.forEach(function (obs) {
obs(function () { val(getAll()) })
})
)}}
function boolean (observable, truthy, falsey) {
return transform(observable, function (val) {
return val ? truthy : falsey
}, function (val) {
return val == truthy ? true : false
})
}
var exports = value
exports.value = value
exports.not = not
exports.input =
exports.attribute = attribute
exports.html = html
exports.compute = compute
exports.transform = transform
exports.boolean = boolean
if('object' === typeof module) module.exports = exports
else this.observable = exports
})()
var h = hyperscript
var o = observable
var a = [].slice.call(document.body.getElementsByTagName('pre'))
a.filter(function (e) {
return !~[].slice.call(e.classList).indexOf('noedit')
}).forEach(function (e) {
var textarea
var demo =
h('div.demoIO',
textarea = h('textarea.demo.demoInput',
{cols: 80, rows: e.innerText.split('\n').length + 1},
e.innerText),
h('div', o.transform(o.input(textarea), function (code) {
try {
var r = eval(code)
if(r instanceof Node)
return r
if(r == null)
return h('pre.demo.demoNull', r === null ? 'null' : 'undefined')
return h('pre.demo.demoOutput', r)
}
catch (err) { return h('pre.demo.demoError', err.toString()) }
})
)
)
//no scrolling!
//It's much nicer to just resize the textarea to fit
o.input(textarea)(function (v) {
textarea.rows = v.split('\n').length + 1
})
e.parentElement.replaceChild(demo, e)
})
;})();
</script>
</body>
</html>