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mithril.js
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mithril.js
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;(function() {
"use strict"
function Vnode(tag, key, attrs0, children, text, dom) {
return {tag: tag, key: key, attrs: attrs0, children: children, text: text, dom: dom, domSize: undefined, state: undefined, _state: undefined, events: undefined, instance: undefined, skip: false}
}
Vnode.normalize = function(node) {
if (Array.isArray(node)) return Vnode("[", undefined, undefined, Vnode.normalizeChildren(node), undefined, undefined)
if (node != null && typeof node !== "object") return Vnode("#", undefined, undefined, node === false ? "" : node, undefined, undefined)
return node
}
Vnode.normalizeChildren = function normalizeChildren(children) {
for (var i = 0; i < children.length; i++) {
children[i] = Vnode.normalize(children[i])
}
return children
}
var selectorParser = /(?:(^|#|\.)([^#\.\[\]]+))|(\[(.+?)(?:\s*=\s*("|'|)((?:\\["'\]]|.)*?)\5)?\])/g
var selectorCache = {}
var hasOwn = {}.hasOwnProperty
function isEmpty(object) {
for (var key in object) if (hasOwn.call(object, key)) return false
return true
}
function compileSelector(selector) {
var match, tag = "div", classes = [], attrs = {}
while (match = selectorParser.exec(selector)) {
var type = match[1], value = match[2]
if (type === "" && value !== "") tag = value
else if (type === "#") attrs.id = value
else if (type === ".") classes.push(value)
else if (match[3][0] === "[") {
var attrValue = match[6]
if (attrValue) attrValue = attrValue.replace(/\\(["'])/g, "$1").replace(/\\\\/g, "\\")
if (match[4] === "class") classes.push(attrValue)
else attrs[match[4]] = attrValue === "" ? attrValue : attrValue || true
}
}
if (classes.length > 0) attrs.className = classes.join(" ")
return selectorCache[selector] = {tag: tag, attrs: attrs}
}
function execSelector(state, attrs, children) {
var hasAttrs = false, childList, text
var className = attrs.className || attrs.class
if (!isEmpty(state.attrs) && !isEmpty(attrs)) {
var newAttrs = {}
for(var key in attrs) {
if (hasOwn.call(attrs, key)) {
newAttrs[key] = attrs[key]
}
}
attrs = newAttrs
}
for (var key in state.attrs) {
if (hasOwn.call(state.attrs, key)) {
attrs[key] = state.attrs[key]
}
}
if (className !== undefined) {
if (attrs.class !== undefined) {
attrs.class = undefined
attrs.className = className
}
if (state.attrs.className != null) {
attrs.className = state.attrs.className + " " + className
}
}
for (var key in attrs) {
if (hasOwn.call(attrs, key) && key !== "key") {
hasAttrs = true
break
}
}
if (Array.isArray(children) && children.length === 1 && children[0] != null && children[0].tag === "#") {
text = children[0].children
} else {
childList = children
}
return Vnode(state.tag, attrs.key, hasAttrs ? attrs : undefined, childList, text)
}
function hyperscript(selector) {
// Because sloppy mode sucks
var attrs = arguments[1], start = 2, children
if (selector == null || typeof selector !== "string" && typeof selector !== "function" && typeof selector.view !== "function") {
throw Error("The selector must be either a string or a component.");
}
if (typeof selector === "string") {
var cached = selectorCache[selector] || compileSelector(selector)
}
if (attrs == null) {
attrs = {}
} else if (typeof attrs !== "object" || attrs.tag != null || Array.isArray(attrs)) {
attrs = {}
start = 1
}
if (arguments.length === start + 1) {
children = arguments[start]
if (!Array.isArray(children)) children = [children]
} else {
children = []
while (start < arguments.length) children.push(arguments[start++])
}
var normalized = Vnode.normalizeChildren(children)
if (typeof selector === "string") {
return execSelector(cached, attrs, normalized)
} else {
return Vnode(selector, attrs.key, attrs, normalized)
}
}
hyperscript.trust = function(html) {
if (html == null) html = ""
return Vnode("<", undefined, undefined, html, undefined, undefined)
}
hyperscript.fragment = function(attrs1, children) {
return Vnode("[", attrs1.key, attrs1, Vnode.normalizeChildren(children), undefined, undefined)
}
var m = hyperscript
/** @constructor */
var PromisePolyfill = function(executor) {
if (!(this instanceof PromisePolyfill)) throw new Error("Promise must be called with `new`")
if (typeof executor !== "function") throw new TypeError("executor must be a function")
var self = this, resolvers = [], rejectors = [], resolveCurrent = handler(resolvers, true), rejectCurrent = handler(rejectors, false)
var instance = self._instance = {resolvers: resolvers, rejectors: rejectors}
var callAsync = typeof setImmediate === "function" ? setImmediate : setTimeout
function handler(list, shouldAbsorb) {
return function execute(value) {
var then
try {
if (shouldAbsorb && value != null && (typeof value === "object" || typeof value === "function") && typeof (then = value.then) === "function") {
if (value === self) throw new TypeError("Promise can't be resolved w/ itself")
executeOnce(then.bind(value))
}
else {
callAsync(function() {
if (!shouldAbsorb && list.length === 0) console.error("Possible unhandled promise rejection:", value)
for (var i = 0; i < list.length; i++) list[i](value)
resolvers.length = 0, rejectors.length = 0
instance.state = shouldAbsorb
instance.retry = function() {execute(value)}
})
}
}
catch (e) {
rejectCurrent(e)
}
}
}
function executeOnce(then) {
var runs = 0
function run(fn) {
return function(value) {
if (runs++ > 0) return
fn(value)
}
}
var onerror = run(rejectCurrent)
try {then(run(resolveCurrent), onerror)} catch (e) {onerror(e)}
}
executeOnce(executor)
}
PromisePolyfill.prototype.then = function(onFulfilled, onRejection) {
var self = this, instance = self._instance
function handle(callback, list, next, state) {
list.push(function(value) {
if (typeof callback !== "function") next(value)
else try {resolveNext(callback(value))} catch (e) {if (rejectNext) rejectNext(e)}
})
if (typeof instance.retry === "function" && state === instance.state) instance.retry()
}
var resolveNext, rejectNext
var promise = new PromisePolyfill(function(resolve, reject) {resolveNext = resolve, rejectNext = reject})
handle(onFulfilled, instance.resolvers, resolveNext, true), handle(onRejection, instance.rejectors, rejectNext, false)
return promise
}
PromisePolyfill.prototype.catch = function(onRejection) {
return this.then(null, onRejection)
}
PromisePolyfill.resolve = function(value) {
if (value instanceof PromisePolyfill) return value
return new PromisePolyfill(function(resolve) {resolve(value)})
}
PromisePolyfill.reject = function(value) {
return new PromisePolyfill(function(resolve, reject) {reject(value)})
}
PromisePolyfill.all = function(list) {
return new PromisePolyfill(function(resolve, reject) {
var total = list.length, count = 0, values = []
if (list.length === 0) resolve([])
else for (var i = 0; i < list.length; i++) {
(function(i) {
function consume(value) {
count++
values[i] = value
if (count === total) resolve(values)
}
if (list[i] != null && (typeof list[i] === "object" || typeof list[i] === "function") && typeof list[i].then === "function") {
list[i].then(consume, reject)
}
else consume(list[i])
})(i)
}
})
}
PromisePolyfill.race = function(list) {
return new PromisePolyfill(function(resolve, reject) {
for (var i = 0; i < list.length; i++) {
list[i].then(resolve, reject)
}
})
}
if (typeof window !== "undefined") {
if (typeof window.Promise === "undefined") window.Promise = PromisePolyfill
var PromisePolyfill = window.Promise
} else if (typeof global !== "undefined") {
if (typeof global.Promise === "undefined") global.Promise = PromisePolyfill
var PromisePolyfill = global.Promise
} else {
}
var buildQueryString = function(object) {
if (Object.prototype.toString.call(object) !== "[object Object]") return ""
var args = []
for (var key0 in object) {
destructure(key0, object[key0])
}
return args.join("&")
function destructure(key0, value) {
if (Array.isArray(value)) {
for (var i = 0; i < value.length; i++) {
destructure(key0 + "[" + i + "]", value[i])
}
}
else if (Object.prototype.toString.call(value) === "[object Object]") {
for (var i in value) {
destructure(key0 + "[" + i + "]", value[i])
}
}
else args.push(encodeURIComponent(key0) + (value != null && value !== "" ? "=" + encodeURIComponent(value) : ""))
}
}
var FILE_PROTOCOL_REGEX = new RegExp("^file://", "i")
var _8 = function($window, Promise) {
var callbackCount = 0
var oncompletion
function setCompletionCallback(callback) {oncompletion = callback}
function finalizer() {
var count = 0
function complete() {if (--count === 0 && typeof oncompletion === "function") oncompletion()}
return function finalize(promise0) {
var then0 = promise0.then
promise0.then = function() {
count++
var next = then0.apply(promise0, arguments)
next.then(complete, function(e) {
complete()
if (count === 0) throw e
})
return finalize(next)
}
return promise0
}
}
function normalize(args, extra) {
if (typeof args === "string") {
var url = args
args = extra || {}
if (args.url == null) args.url = url
}
return args
}
function request(args, extra) {
var finalize = finalizer()
args = normalize(args, extra)
var promise0 = new Promise(function(resolve, reject) {
if (args.method == null) args.method = "GET"
args.method = args.method.toUpperCase()
var useBody = (args.method === "GET" || args.method === "TRACE") ? false : (typeof args.useBody === "boolean" ? args.useBody : true)
if (typeof args.serialize !== "function") args.serialize = typeof FormData !== "undefined" && args.data instanceof FormData ? function(value) {return value} : JSON.stringify
if (typeof args.deserialize !== "function") args.deserialize = deserialize
if (typeof args.extract !== "function") args.extract = extract
args.url = interpolate(args.url, args.data)
if (useBody) args.data = args.serialize(args.data)
else args.url = assemble(args.url, args.data)
var xhr = new $window.XMLHttpRequest(),
aborted = false,
_abort = xhr.abort
xhr.abort = function abort() {
aborted = true
_abort.call(xhr)
}
xhr.open(args.method, args.url, typeof args.async === "boolean" ? args.async : true, typeof args.user === "string" ? args.user : undefined, typeof args.password === "string" ? args.password : undefined)
if (args.serialize === JSON.stringify && useBody && !(args.headers && args.headers.hasOwnProperty("Content-Type"))) {
xhr.setRequestHeader("Content-Type", "application/json; charset=utf-8")
}
if (args.deserialize === deserialize && !(args.headers && args.headers.hasOwnProperty("Accept"))) {
xhr.setRequestHeader("Accept", "application/json, text/*")
}
if (args.withCredentials) xhr.withCredentials = args.withCredentials
for (var key in args.headers) if ({}.hasOwnProperty.call(args.headers, key)) {
xhr.setRequestHeader(key, args.headers[key])
}
if (typeof args.config === "function") xhr = args.config(xhr, args) || xhr
xhr.onreadystatechange = function() {
// Don't throw errors on xhr.abort().
if(aborted) return
if (xhr.readyState === 4) {
try {
var response = (args.extract !== extract) ? args.extract(xhr, args) : args.deserialize(args.extract(xhr, args))
if ((xhr.status >= 200 && xhr.status < 300) || xhr.status === 304 || FILE_PROTOCOL_REGEX.test(args.url)) {
resolve(cast(args.type, response))
}
else {
var error = new Error(xhr.responseText)
for (var key in response) error[key] = response[key]
reject(error)
}
}
catch (e) {
reject(e)
}
}
}
if (useBody && (args.data != null)) xhr.send(args.data)
else xhr.send()
})
return args.background === true ? promise0 : finalize(promise0)
}
function jsonp(args, extra) {
var finalize = finalizer()
args = normalize(args, extra)
var promise0 = new Promise(function(resolve, reject) {
var callbackName = args.callbackName || "_mithril_" + Math.round(Math.random() * 1e16) + "_" + callbackCount++
var script = $window.document.createElement("script")
$window[callbackName] = function(data) {
script.parentNode.removeChild(script)
resolve(cast(args.type, data))
delete $window[callbackName]
}
script.onerror = function() {
script.parentNode.removeChild(script)
reject(new Error("JSONP request failed"))
delete $window[callbackName]
}
if (args.data == null) args.data = {}
args.url = interpolate(args.url, args.data)
args.data[args.callbackKey || "callback"] = callbackName
script.src = assemble(args.url, args.data)
$window.document.documentElement.appendChild(script)
})
return args.background === true? promise0 : finalize(promise0)
}
function interpolate(url, data) {
if (data == null) return url
var tokens = url.match(/:[^\/]+/gi) || []
for (var i = 0; i < tokens.length; i++) {
var key = tokens[i].slice(1)
if (data[key] != null) {
url = url.replace(tokens[i], data[key])
}
}
return url
}
function assemble(url, data) {
var querystring = buildQueryString(data)
if (querystring !== "") {
var prefix = url.indexOf("?") < 0 ? "?" : "&"
url += prefix + querystring
}
return url
}
function deserialize(data) {
try {return data !== "" ? JSON.parse(data) : null}
catch (e) {throw new Error(data)}
}
function extract(xhr) {return xhr.responseText}
function cast(type0, data) {
if (typeof type0 === "function") {
if (Array.isArray(data)) {
for (var i = 0; i < data.length; i++) {
data[i] = new type0(data[i])
}
}
else return new type0(data)
}
return data
}
return {request: request, jsonp: jsonp, setCompletionCallback: setCompletionCallback}
}
var requestService = _8(window, PromisePolyfill)
var coreRenderer = function($window) {
var $doc = $window.document
var $emptyFragment = $doc.createDocumentFragment()
var nameSpace = {
svg: "http://www.w3.org/2000/svg",
math: "http://www.w3.org/1998/Math/MathML"
}
var onevent
function setEventCallback(callback) {return onevent = callback}
function getNameSpace(vnode) {
return vnode.attrs && vnode.attrs.xmlns || nameSpace[vnode.tag]
}
//create
function createNodes(parent, vnodes, start, end, hooks, nextSibling, ns) {
for (var i = start; i < end; i++) {
var vnode = vnodes[i]
if (vnode != null) {
createNode(parent, vnode, hooks, ns, nextSibling)
}
}
}
function createNode(parent, vnode, hooks, ns, nextSibling) {
var tag = vnode.tag
if (typeof tag === "string") {
vnode.state = {}
if (vnode.attrs != null) initLifecycle(vnode.attrs, vnode, hooks)
switch (tag) {
case "#": return createText(parent, vnode, nextSibling)
case "<": return createHTML(parent, vnode, nextSibling)
case "[": return createFragment(parent, vnode, hooks, ns, nextSibling)
default: return createElement(parent, vnode, hooks, ns, nextSibling)
}
}
else return createComponent(parent, vnode, hooks, ns, nextSibling)
}
function createText(parent, vnode, nextSibling) {
vnode.dom = $doc.createTextNode(vnode.children)
insertNode(parent, vnode.dom, nextSibling)
return vnode.dom
}
function createHTML(parent, vnode, nextSibling) {
var match1 = vnode.children.match(/^\s*?<(\w+)/im) || []
var parent1 = {caption: "table", thead: "table", tbody: "table", tfoot: "table", tr: "tbody", th: "tr", td: "tr", colgroup: "table", col: "colgroup"}[match1[1]] || "div"
var temp = $doc.createElement(parent1)
temp.innerHTML = vnode.children
vnode.dom = temp.firstChild
vnode.domSize = temp.childNodes.length
var fragment = $doc.createDocumentFragment()
var child
while (child = temp.firstChild) {
fragment.appendChild(child)
}
insertNode(parent, fragment, nextSibling)
return fragment
}
function createFragment(parent, vnode, hooks, ns, nextSibling) {
var fragment = $doc.createDocumentFragment()
if (vnode.children != null) {
var children = vnode.children
createNodes(fragment, children, 0, children.length, hooks, null, ns)
}
vnode.dom = fragment.firstChild
vnode.domSize = fragment.childNodes.length
insertNode(parent, fragment, nextSibling)
return fragment
}
function createElement(parent, vnode, hooks, ns, nextSibling) {
var tag = vnode.tag
var attrs2 = vnode.attrs
var is = attrs2 && attrs2.is
ns = getNameSpace(vnode) || ns
var element = ns ?
is ? $doc.createElementNS(ns, tag, {is: is}) : $doc.createElementNS(ns, tag) :
is ? $doc.createElement(tag, {is: is}) : $doc.createElement(tag)
vnode.dom = element
if (attrs2 != null) {
setAttrs(vnode, attrs2, ns)
}
insertNode(parent, element, nextSibling)
if (vnode.attrs != null && vnode.attrs.contenteditable != null) {
setContentEditable(vnode)
}
else {
if (vnode.text != null) {
if (vnode.text !== "") element.textContent = vnode.text
else vnode.children = [Vnode("#", undefined, undefined, vnode.text, undefined, undefined)]
}
if (vnode.children != null) {
var children = vnode.children
createNodes(element, children, 0, children.length, hooks, null, ns)
setLateAttrs(vnode)
}
}
return element
}
function initComponent(vnode, hooks) {
var sentinel
if (typeof vnode.tag.view === "function") {
vnode.state = Object.create(vnode.tag)
sentinel = vnode.state.view
if (sentinel.$$reentrantLock$$ != null) return $emptyFragment
sentinel.$$reentrantLock$$ = true
} else {
vnode.state = void 0
sentinel = vnode.tag
if (sentinel.$$reentrantLock$$ != null) return $emptyFragment
sentinel.$$reentrantLock$$ = true
vnode.state = (vnode.tag.prototype != null && typeof vnode.tag.prototype.view === "function") ? new vnode.tag(vnode) : vnode.tag(vnode)
}
vnode._state = vnode.state
if (vnode.attrs != null) initLifecycle(vnode.attrs, vnode, hooks)
initLifecycle(vnode._state, vnode, hooks)
vnode.instance = Vnode.normalize(vnode._state.view.call(vnode.state, vnode))
if (vnode.instance === vnode) throw Error("A view cannot return the vnode it received as argument")
sentinel.$$reentrantLock$$ = null
}
function createComponent(parent, vnode, hooks, ns, nextSibling) {
initComponent(vnode, hooks)
if (vnode.instance != null) {
var element = createNode(parent, vnode.instance, hooks, ns, nextSibling)
vnode.dom = vnode.instance.dom
vnode.domSize = vnode.dom != null ? vnode.instance.domSize : 0
insertNode(parent, element, nextSibling)
return element
}
else {
vnode.domSize = 0
return $emptyFragment
}
}
//update
function updateNodes(parent, old, vnodes, recycling, hooks, nextSibling, ns) {
if (old === vnodes || old == null && vnodes == null) return
else if (old == null) createNodes(parent, vnodes, 0, vnodes.length, hooks, nextSibling, ns)
else if (vnodes == null) removeNodes(old, 0, old.length, vnodes)
else {
if (old.length === vnodes.length) {
var isUnkeyed = false
for (var i = 0; i < vnodes.length; i++) {
if (vnodes[i] != null && old[i] != null) {
isUnkeyed = vnodes[i].key == null && old[i].key == null
break
}
}
if (isUnkeyed) {
for (var i = 0; i < old.length; i++) {
if (old[i] === vnodes[i]) continue
else if (old[i] == null && vnodes[i] != null) createNode(parent, vnodes[i], hooks, ns, getNextSibling(old, i + 1, nextSibling))
else if (vnodes[i] == null) removeNodes(old, i, i + 1, vnodes)
else updateNode(parent, old[i], vnodes[i], hooks, getNextSibling(old, i + 1, nextSibling), recycling, ns)
}
return
}
}
recycling = recycling || isRecyclable(old, vnodes)
if (recycling) {
var pool = old.pool
old = old.concat(old.pool)
}
var oldStart = 0, start = 0, oldEnd = old.length - 1, end = vnodes.length - 1, map
while (oldEnd >= oldStart && end >= start) {
var o = old[oldStart], v = vnodes[start]
if (o === v && !recycling) oldStart++, start++
else if (o == null) oldStart++
else if (v == null) start++
else if (o.key === v.key) {
var shouldRecycle = (pool != null && oldStart >= old.length - pool.length) || ((pool == null) && recycling)
oldStart++, start++
updateNode(parent, o, v, hooks, getNextSibling(old, oldStart, nextSibling), shouldRecycle, ns)
if (recycling && o.tag === v.tag) insertNode(parent, toFragment(o), nextSibling)
}
else {
var o = old[oldEnd]
if (o === v && !recycling) oldEnd--, start++
else if (o == null) oldEnd--
else if (v == null) start++
else if (o.key === v.key) {
var shouldRecycle = (pool != null && oldEnd >= old.length - pool.length) || ((pool == null) && recycling)
updateNode(parent, o, v, hooks, getNextSibling(old, oldEnd + 1, nextSibling), shouldRecycle, ns)
if (recycling || start < end) insertNode(parent, toFragment(o), getNextSibling(old, oldStart, nextSibling))
oldEnd--, start++
}
else break
}
}
while (oldEnd >= oldStart && end >= start) {
var o = old[oldEnd], v = vnodes[end]
if (o === v && !recycling) oldEnd--, end--
else if (o == null) oldEnd--
else if (v == null) end--
else if (o.key === v.key) {
var shouldRecycle = (pool != null && oldEnd >= old.length - pool.length) || ((pool == null) && recycling)
updateNode(parent, o, v, hooks, getNextSibling(old, oldEnd + 1, nextSibling), shouldRecycle, ns)
if (recycling && o.tag === v.tag) insertNode(parent, toFragment(o), nextSibling)
if (o.dom != null) nextSibling = o.dom
oldEnd--, end--
}
else {
if (!map) map = getKeyMap(old, oldEnd)
if (v != null) {
var oldIndex = map[v.key]
if (oldIndex != null) {
var movable = old[oldIndex]
var shouldRecycle = (pool != null && oldIndex >= old.length - pool.length) || ((pool == null) && recycling)
updateNode(parent, movable, v, hooks, getNextSibling(old, oldEnd + 1, nextSibling), recycling, ns)
insertNode(parent, toFragment(movable), nextSibling)
old[oldIndex].skip = true
if (movable.dom != null) nextSibling = movable.dom
}
else {
var dom = createNode(parent, v, hooks, ns, nextSibling)
nextSibling = dom
}
}
end--
}
if (end < start) break
}
createNodes(parent, vnodes, start, end + 1, hooks, nextSibling, ns)
removeNodes(old, oldStart, oldEnd + 1, vnodes)
}
}
function updateNode(parent, old, vnode, hooks, nextSibling, recycling, ns) {
var oldTag = old.tag, tag = vnode.tag
if (oldTag === tag) {
vnode.state = old.state
vnode._state = old._state
vnode.events = old.events
if (!recycling && shouldNotUpdate(vnode, old)) return
if (typeof oldTag === "string") {
if (vnode.attrs != null) {
if (recycling) {
vnode.state = {}
initLifecycle(vnode.attrs, vnode, hooks)
}
else updateLifecycle(vnode.attrs, vnode, hooks)
}
switch (oldTag) {
case "#": updateText(old, vnode); break
case "<": updateHTML(parent, old, vnode, nextSibling); break
case "[": updateFragment(parent, old, vnode, recycling, hooks, nextSibling, ns); break
default: updateElement(old, vnode, recycling, hooks, ns)
}
}
else updateComponent(parent, old, vnode, hooks, nextSibling, recycling, ns)
}
else {
removeNode(old, null)
createNode(parent, vnode, hooks, ns, nextSibling)
}
}
function updateText(old, vnode) {
if (old.children.toString() !== vnode.children.toString()) {
old.dom.nodeValue = vnode.children
}
vnode.dom = old.dom
}
function updateHTML(parent, old, vnode, nextSibling) {
if (old.children !== vnode.children) {
toFragment(old)
createHTML(parent, vnode, nextSibling)
}
else vnode.dom = old.dom, vnode.domSize = old.domSize
}
function updateFragment(parent, old, vnode, recycling, hooks, nextSibling, ns) {
updateNodes(parent, old.children, vnode.children, recycling, hooks, nextSibling, ns)
var domSize = 0, children = vnode.children
vnode.dom = null
if (children != null) {
for (var i = 0; i < children.length; i++) {
var child = children[i]
if (child != null && child.dom != null) {
if (vnode.dom == null) vnode.dom = child.dom
domSize += child.domSize || 1
}
}
if (domSize !== 1) vnode.domSize = domSize
}
}
function updateElement(old, vnode, recycling, hooks, ns) {
var element = vnode.dom = old.dom
ns = getNameSpace(vnode) || ns
if (vnode.tag === "textarea") {
if (vnode.attrs == null) vnode.attrs = {}
if (vnode.text != null) {
vnode.attrs.value = vnode.text //FIXME handle0 multiple children
vnode.text = undefined
}
}
updateAttrs(vnode, old.attrs, vnode.attrs, ns)
if (vnode.attrs != null && vnode.attrs.contenteditable != null) {
setContentEditable(vnode)
}
else if (old.text != null && vnode.text != null && vnode.text !== "") {
if (old.text.toString() !== vnode.text.toString()) old.dom.firstChild.nodeValue = vnode.text
}
else {
if (old.text != null) old.children = [Vnode("#", undefined, undefined, old.text, undefined, old.dom.firstChild)]
if (vnode.text != null) vnode.children = [Vnode("#", undefined, undefined, vnode.text, undefined, undefined)]
updateNodes(element, old.children, vnode.children, recycling, hooks, null, ns)
}
}
function updateComponent(parent, old, vnode, hooks, nextSibling, recycling, ns) {
if (recycling) {
initComponent(vnode, hooks)
} else {
vnode.instance = Vnode.normalize(vnode._state.view.call(vnode.state, vnode))
if (vnode.instance === vnode) throw Error("A view cannot return the vnode it received as argument")
if (vnode.attrs != null) updateLifecycle(vnode.attrs, vnode, hooks)
updateLifecycle(vnode._state, vnode, hooks)
}
if (vnode.instance != null) {
if (old.instance == null) createNode(parent, vnode.instance, hooks, ns, nextSibling)
else updateNode(parent, old.instance, vnode.instance, hooks, nextSibling, recycling, ns)
vnode.dom = vnode.instance.dom
vnode.domSize = vnode.instance.domSize
}
else if (old.instance != null) {
removeNode(old.instance, null)
vnode.dom = undefined
vnode.domSize = 0
}
else {
vnode.dom = old.dom
vnode.domSize = old.domSize
}
}
function isRecyclable(old, vnodes) {
if (old.pool != null && Math.abs(old.pool.length - vnodes.length) <= Math.abs(old.length - vnodes.length)) {
var oldChildrenLength = old[0] && old[0].children && old[0].children.length || 0
var poolChildrenLength = old.pool[0] && old.pool[0].children && old.pool[0].children.length || 0
var vnodesChildrenLength = vnodes[0] && vnodes[0].children && vnodes[0].children.length || 0
if (Math.abs(poolChildrenLength - vnodesChildrenLength) <= Math.abs(oldChildrenLength - vnodesChildrenLength)) {
return true
}
}
return false
}
function getKeyMap(vnodes, end) {
var map = {}, i = 0
for (var i = 0; i < end; i++) {
var vnode = vnodes[i]
if (vnode != null) {
var key2 = vnode.key
if (key2 != null) map[key2] = i
}
}
return map
}
function toFragment(vnode) {
var count0 = vnode.domSize
if (count0 != null || vnode.dom == null) {
var fragment = $doc.createDocumentFragment()
if (count0 > 0) {
var dom = vnode.dom
while (--count0) fragment.appendChild(dom.nextSibling)
fragment.insertBefore(dom, fragment.firstChild)
}
return fragment
}
else return vnode.dom
}
function getNextSibling(vnodes, i, nextSibling) {
for (; i < vnodes.length; i++) {
if (vnodes[i] != null && vnodes[i].dom != null) return vnodes[i].dom
}
return nextSibling
}
function insertNode(parent, dom, nextSibling) {
if (nextSibling && nextSibling.parentNode) parent.insertBefore(dom, nextSibling)
else parent.appendChild(dom)
}
function setContentEditable(vnode) {
var children = vnode.children
if (children != null && children.length === 1 && children[0].tag === "<") {
var content = children[0].children
if (vnode.dom.innerHTML !== content) vnode.dom.innerHTML = content
}
else if (vnode.text != null || children != null && children.length !== 0) throw new Error("Child node of a contenteditable must be trusted")
}
//remove
function removeNodes(vnodes, start, end, context) {
for (var i = start; i < end; i++) {
var vnode = vnodes[i]
if (vnode != null) {
if (vnode.skip) vnode.skip = false
else removeNode(vnode, context)
}
}
}
function removeNode(vnode, context) {
var expected = 1, called = 0
if (vnode.attrs && typeof vnode.attrs.onbeforeremove === "function") {
var result = vnode.attrs.onbeforeremove.call(vnode.state, vnode)
if (result != null && typeof result.then === "function") {
expected++
result.then(continuation, continuation)
}
}
if (typeof vnode.tag !== "string" && typeof vnode._state.onbeforeremove === "function") {
var result = vnode._state.onbeforeremove.call(vnode.state, vnode)
if (result != null && typeof result.then === "function") {
expected++
result.then(continuation, continuation)
}
}
continuation()
function continuation() {
if (++called === expected) {
onremove(vnode)
if (vnode.dom) {
var count0 = vnode.domSize || 1
if (count0 > 1) {
var dom = vnode.dom
while (--count0) {
removeNodeFromDOM(dom.nextSibling)
}
}
removeNodeFromDOM(vnode.dom)
if (context != null && vnode.domSize == null && !hasIntegrationMethods(vnode.attrs) && typeof vnode.tag === "string") { //TODO test custom elements
if (!context.pool) context.pool = [vnode]
else context.pool.push(vnode)
}
}
}
}
}
function removeNodeFromDOM(node) {
var parent = node.parentNode
if (parent != null) parent.removeChild(node)
}
function onremove(vnode) {
if (vnode.attrs && typeof vnode.attrs.onremove === "function") vnode.attrs.onremove.call(vnode.state, vnode)
if (typeof vnode.tag !== "string") {
if (typeof vnode._state.onremove === "function") vnode._state.onremove.call(vnode.state, vnode)
if (vnode.instance != null) onremove(vnode.instance)
} else {
var children = vnode.children
if (Array.isArray(children)) {
for (var i = 0; i < children.length; i++) {
var child = children[i]
if (child != null) onremove(child)
}
}
}
}
//attrs2
function setAttrs(vnode, attrs2, ns) {
for (var key2 in attrs2) {
setAttr(vnode, key2, null, attrs2[key2], ns)
}
}
function setAttr(vnode, key2, old, value, ns) {
var element = vnode.dom
if (key2 === "key" || key2 === "is" || (old === value && !isFormAttribute(vnode, key2)) && typeof value !== "object" || typeof value === "undefined" || isLifecycleMethod(key2)) return
var nsLastIndex = key2.indexOf(":")
if (nsLastIndex > -1 && key2.substr(0, nsLastIndex) === "xlink") {
element.setAttributeNS("http://www.w3.org/1999/xlink", key2.slice(nsLastIndex + 1), value)
}
else if (key2[0] === "o" && key2[1] === "n" && typeof value === "function") updateEvent(vnode, key2, value)
else if (key2 === "style") updateStyle(element, old, value)
else if (key2 in element && !isAttribute(key2) && ns === undefined && !isCustomElement(vnode)) {
if (key2 === "value") {
var normalized0 = "" + value // eslint-disable-line no-implicit-coercion
//setting input[value] to same value by typing on focused element moves cursor to end in Chrome
if ((vnode.tag === "input" || vnode.tag === "textarea") && vnode.dom.value === normalized0 && vnode.dom === $doc.activeElement) return
//setting select[value] to same value while having select open blinks select dropdown in Chrome
if (vnode.tag === "select") {
if (value === null) {
if (vnode.dom.selectedIndex === -1 && vnode.dom === $doc.activeElement) return
} else {
if (old !== null && vnode.dom.value === normalized0 && vnode.dom === $doc.activeElement) return
}
}
//setting option[value] to same value while having select open blinks select dropdown in Chrome
if (vnode.tag === "option" && old != null && vnode.dom.value === normalized0) return
}
// If you assign an input type1 that is not supported by IE 11 with an assignment expression, an error0 will occur.
if (vnode.tag === "input" && key2 === "type") {
element.setAttribute(key2, value)
return
}
element[key2] = value
}
else {
if (typeof value === "boolean") {
if (value) element.setAttribute(key2, "")
else element.removeAttribute(key2)
}
else element.setAttribute(key2 === "className" ? "class" : key2, value)
}
}
function setLateAttrs(vnode) {
var attrs2 = vnode.attrs
if (vnode.tag === "select" && attrs2 != null) {
if ("value" in attrs2) setAttr(vnode, "value", null, attrs2.value, undefined)
if ("selectedIndex" in attrs2) setAttr(vnode, "selectedIndex", null, attrs2.selectedIndex, undefined)
}
}
function updateAttrs(vnode, old, attrs2, ns) {
if (attrs2 != null) {
for (var key2 in attrs2) {
setAttr(vnode, key2, old && old[key2], attrs2[key2], ns)
}
}
if (old != null) {
for (var key2 in old) {
if (attrs2 == null || !(key2 in attrs2)) {
if (key2 === "className") key2 = "class"
if (key2[0] === "o" && key2[1] === "n" && !isLifecycleMethod(key2)) updateEvent(vnode, key2, undefined)
else if (key2 !== "key") vnode.dom.removeAttribute(key2)
}
}
}
}
function isFormAttribute(vnode, attr) {
return attr === "value" || attr === "checked" || attr === "selectedIndex" || attr === "selected" && vnode.dom === $doc.activeElement
}
function isLifecycleMethod(attr) {
return attr === "oninit" || attr === "oncreate" || attr === "onupdate" || attr === "onremove" || attr === "onbeforeremove" || attr === "onbeforeupdate"
}
function isAttribute(attr) {
return attr === "href" || attr === "list" || attr === "form" || attr === "width" || attr === "height"// || attr === "type"
}
function isCustomElement(vnode){
return vnode.attrs.is || vnode.tag.indexOf("-") > -1
}
function hasIntegrationMethods(source) {
return source != null && (source.oncreate || source.onupdate || source.onbeforeremove || source.onremove)
}
//style
function updateStyle(element, old, style) {
if (old === style) element.style.cssText = "", old = null
if (style == null) element.style.cssText = ""
else if (typeof style === "string") element.style.cssText = style
else {
if (typeof old === "string") element.style.cssText = ""
for (var key2 in style) {
element.style[key2] = style[key2]
}
if (old != null && typeof old !== "string") {
for (var key2 in old) {
if (!(key2 in style)) element.style[key2] = ""
}
}
}
}
//event
function updateEvent(vnode, key2, value) {
var element = vnode.dom
var callback = typeof onevent !== "function" ? value : function(e) {
var result = value.call(element, e)
onevent.call(element, e)
return result
}
if (key2 in element) element[key2] = typeof value === "function" ? callback : null
else {
var eventName = key2.slice(2)
if (vnode.events === undefined) vnode.events = {}
if (vnode.events[key2] === callback) return
if (vnode.events[key2] != null) element.removeEventListener(eventName, vnode.events[key2], false)
if (typeof value === "function") {
vnode.events[key2] = callback
element.addEventListener(eventName, vnode.events[key2], false)
}
}
}
//lifecycle
function initLifecycle(source, vnode, hooks) {
if (typeof source.oninit === "function") source.oninit.call(vnode.state, vnode)
if (typeof source.oncreate === "function") hooks.push(source.oncreate.bind(vnode.state, vnode))
}
function updateLifecycle(source, vnode, hooks) {
if (typeof source.onupdate === "function") hooks.push(source.onupdate.bind(vnode.state, vnode))
}
function shouldNotUpdate(vnode, old) {
var forceVnodeUpdate, forceComponentUpdate
if (vnode.attrs != null && typeof vnode.attrs.onbeforeupdate === "function") forceVnodeUpdate = vnode.attrs.onbeforeupdate.call(vnode.state, vnode, old)
if (typeof vnode.tag !== "string" && typeof vnode._state.onbeforeupdate === "function") forceComponentUpdate = vnode._state.onbeforeupdate.call(vnode.state, vnode, old)
if (!(forceVnodeUpdate === undefined && forceComponentUpdate === undefined) && !forceVnodeUpdate && !forceComponentUpdate) {
vnode.dom = old.dom
vnode.domSize = old.domSize
vnode.instance = old.instance
return true
}
return false
}
function render(dom, vnodes) {
if (!dom) throw new Error("Ensure the DOM element being passed to m.route/m.mount/m.render is not undefined.")
var hooks = []
var active = $doc.activeElement
var namespace = dom.namespaceURI
// First time0 rendering into a node clears it out
if (dom.vnodes == null) dom.textContent = ""
if (!Array.isArray(vnodes)) vnodes = [vnodes]
updateNodes(dom, dom.vnodes, Vnode.normalizeChildren(vnodes), false, hooks, null, namespace === "http://www.w3.org/1999/xhtml" ? undefined : namespace)
dom.vnodes = vnodes
// document.activeElement can return null in IE https://developer.mozilla.org/en-US/docs/Web/API/Document/activeElement
if (active != null && $doc.activeElement !== active) active.focus()
for (var i = 0; i < hooks.length; i++) hooks[i]()
}
return {render: render, setEventCallback: setEventCallback}
}
function throttle(callback) {
//60fps translates to 16.6ms, round it down since setTimeout requires int
var time = 16
var last = 0, pending = null
var timeout = typeof requestAnimationFrame === "function" ? requestAnimationFrame : setTimeout
return function() {
var now = Date.now()
if (last === 0 || now - last >= time) {
last = now
callback()