Dominion/static/mithril.js

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JavaScript
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2020-12-28 23:30:20 +01:00
;(function() {
"use strict"
function Vnode(tag, key, attrs0, children0, text, dom) {
return {tag: tag, key: key, attrs: attrs0, children: children0, text: text, dom: dom, domSize: undefined, state: undefined, events: undefined, instance: undefined}
}
Vnode.normalize = function(node) {
if (Array.isArray(node)) return Vnode("[", undefined, undefined, Vnode.normalizeChildren(node), undefined, undefined)
if (node == null || typeof node === "boolean") return null
if (typeof node === "object") return node
return Vnode("#", undefined, undefined, String(node), undefined, undefined)
}
Vnode.normalizeChildren = function(input) {
var children0 = []
if (input.length) {
var isKeyed = input[0] != null && input[0].key != null
// Note: this is a *very* perf-sensitive check.
// Fun fact: merging the loop like this is somehow faster than splitting
// it, noticeably so.
for (var i = 1; i < input.length; i++) {
if ((input[i] != null && input[i].key != null) !== isKeyed) {
throw new TypeError("Vnodes must either always have keys or never have keys!")
}
}
for (var i = 0; i < input.length; i++) {
children0[i] = Vnode.normalize(input[i])
}
}
return children0
}
// Call via `hyperscriptVnode0.apply(startOffset, arguments)`
//
// The reason I do it this way, forwarding the arguments and passing the start
// offset in `this`, is so I don't have to create a temporary array in a
// performance-critical path.
//
// In native ES6, I'd instead add a final `...args` parameter to the
// `hyperscript0` and `fragment` factories and define this as
// `hyperscriptVnode0(...args)`, since modern engines do optimize that away. But
// ES5 (what Mithril requires thanks to IE support) doesn't give me that luxury,
// and engines aren't nearly intelligent enough to do either of these:
//
// 1. Elide the allocation for `[].slice.call(arguments, 1)` when it's passed to
// another function only to be indexed.
// 2. Elide an `arguments` allocation when it's passed to any function other
// than `Function.prototype.apply` or `Reflect.apply`.
//
// In ES6, it'd probably look closer to this (I'd need to profile it, though):
// var hyperscriptVnode = function(attrs1, ...children1) {
// if (attrs1 == null || typeof attrs1 === "object" && attrs1.tag == null && !Array.isArray(attrs1)) {
// if (children1.length === 1 && Array.isArray(children1[0])) children1 = children1[0]
// } else {
// children1 = children1.length === 0 && Array.isArray(attrs1) ? attrs1 : [attrs1, ...children1]
// attrs1 = undefined
// }
//
// if (attrs1 == null) attrs1 = {}
// return Vnode("", attrs1.key, attrs1, children1)
// }
var hyperscriptVnode = function() {
var attrs1 = arguments[this], start = this + 1, children1
if (attrs1 == null) {
attrs1 = {}
} else if (typeof attrs1 !== "object" || attrs1.tag != null || Array.isArray(attrs1)) {
attrs1 = {}
start = this
}
if (arguments.length === start + 1) {
children1 = arguments[start]
if (!Array.isArray(children1)) children1 = [children1]
} else {
children1 = []
while (start < arguments.length) children1.push(arguments[start++])
}
return Vnode("", attrs1.key, attrs1, children1)
}
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, vnode) {
var attrs = vnode.attrs
var children = Vnode.normalizeChildren(vnode.children)
var hasClass = hasOwn.call(attrs, "class")
var className = hasClass ? attrs.class : attrs.className
vnode.tag = state.tag
vnode.attrs = null
vnode.children = undefined
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) && key !== "className" && !hasOwn.call(attrs, key)){
attrs[key] = state.attrs[key]
}
}
if (className != null || state.attrs.className != null) attrs.className =
className != null
? state.attrs.className != null
? String(state.attrs.className) + " " + String(className)
: className
: state.attrs.className != null
? state.attrs.className
: null
if (hasClass) attrs.class = null
for (var key in attrs) {
if (hasOwn.call(attrs, key) && key !== "key") {
vnode.attrs = attrs
break
}
}
if (Array.isArray(children) && children.length === 1 && children[0] != null && children[0].tag === "#") {
vnode.text = children[0].children
} else {
vnode.children = children
}
return vnode
}
function hyperscript(selector) {
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.");
}
var vnode = hyperscriptVnode.apply(1, arguments)
if (typeof selector === "string") {
vnode.children = Vnode.normalizeChildren(vnode.children)
if (selector !== "[") return execSelector(selectorCache[selector] || compileSelector(selector), vnode)
}
vnode.tag = selector
return vnode
}
hyperscript.trust = function(html) {
if (html == null) html = ""
return Vnode("<", undefined, undefined, html, undefined, undefined)
}
hyperscript.fragment = function() {
var vnode2 = hyperscriptVnode.apply(0, arguments)
vnode2.tag = "["
vnode2.children = Vnode.normalizeChildren(vnode2.children)
return vnode2
}
/** @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.prototype.finally = function(callback) {
return this.then(
function(value) {
return PromisePolyfill.resolve(callback()).then(function() {
return value
})
},
function(reason) {
return PromisePolyfill.resolve(callback()).then(function() {
return PromisePolyfill.reject(reason);
})
}
)
}
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
} else if (!window.Promise.prototype.finally) {
window.Promise.prototype.finally = PromisePolyfill.prototype.finally
}
var PromisePolyfill = window.Promise
} else if (typeof global !== "undefined") {
if (typeof global.Promise === "undefined") {
global.Promise = PromisePolyfill
} else if (!global.Promise.prototype.finally) {
global.Promise.prototype.finally = PromisePolyfill.prototype.finally
}
var PromisePolyfill = global.Promise
} else {
}
var _12 = function($window) {
var $doc = $window && $window.document
var currentRedraw
var nameSpace = {
svg: "http://www.w3.org/2000/svg",
math: "http://www.w3.org/1998/Math/MathML"
}
function getNameSpace(vnode3) {
return vnode3.attrs && vnode3.attrs.xmlns || nameSpace[vnode3.tag]
}
//sanity check to discourage people from doing `vnode3.state = ...`
function checkState(vnode3, original) {
if (vnode3.state !== original) throw new Error("`vnode.state` must not be modified")
}
//Note: the hook is passed as the `this` argument to allow proxying the
//arguments without requiring a full array allocation to do so. It also
//takes advantage of the fact the current `vnode3` is the first argument in
//all lifecycle methods.
function callHook(vnode3) {
var original = vnode3.state
try {
return this.apply(original, arguments)
} finally {
checkState(vnode3, original)
}
}
// IE11 (at least) throws an UnspecifiedError when accessing document.activeElement when
// inside an iframe. Catch and swallow this error, and heavy-handidly return null.
function activeElement() {
try {
return $doc.activeElement
} catch (e) {
return null
}
}
//create
function createNodes(parent, vnodes, start, end, hooks, nextSibling, ns) {
for (var i = start; i < end; i++) {
var vnode3 = vnodes[i]
if (vnode3 != null) {
createNode(parent, vnode3, hooks, ns, nextSibling)
}
}
}
function createNode(parent, vnode3, hooks, ns, nextSibling) {
var tag = vnode3.tag
if (typeof tag === "string") {
vnode3.state = {}
if (vnode3.attrs != null) initLifecycle(vnode3.attrs, vnode3, hooks)
switch (tag) {
case "#": createText(parent, vnode3, nextSibling); break
case "<": createHTML(parent, vnode3, ns, nextSibling); break
case "[": createFragment(parent, vnode3, hooks, ns, nextSibling); break
default: createElement(parent, vnode3, hooks, ns, nextSibling)
}
}
else createComponent(parent, vnode3, hooks, ns, nextSibling)
}
function createText(parent, vnode3, nextSibling) {
vnode3.dom = $doc.createTextNode(vnode3.children)
insertNode(parent, vnode3.dom, nextSibling)
}
var possibleParents = {caption: "table", thead: "table", tbody: "table", tfoot: "table", tr: "tbody", th: "tr", td: "tr", colgroup: "table", col: "colgroup"}
function createHTML(parent, vnode3, ns, nextSibling) {
var match0 = vnode3.children.match(/^\s*?<(\w+)/im) || []
// not using the proper parent makes the child element(s) vanish.
// var div = document.createElement("div")
// div.innerHTML = "<td>i</td><td>j</td>"
// console.log(div.innerHTML)
// --> "ij", no <td> in sight.
var temp = $doc.createElement(possibleParents[match0[1]] || "div")
if (ns === "http://www.w3.org/2000/svg") {
temp.innerHTML = "<svg xmlns=\"http://www.w3.org/2000/svg\">" + vnode3.children + "</svg>"
temp = temp.firstChild
} else {
temp.innerHTML = vnode3.children
}
vnode3.dom = temp.firstChild
vnode3.domSize = temp.childNodes.length
// Capture nodes to remove, so we don't confuse them.
vnode3.instance = []
var fragment = $doc.createDocumentFragment()
var child
while (child = temp.firstChild) {
vnode3.instance.push(child)
fragment.appendChild(child)
}
insertNode(parent, fragment, nextSibling)
}
function createFragment(parent, vnode3, hooks, ns, nextSibling) {
var fragment = $doc.createDocumentFragment()
if (vnode3.children != null) {
var children3 = vnode3.children
createNodes(fragment, children3, 0, children3.length, hooks, null, ns)
}
vnode3.dom = fragment.firstChild
vnode3.domSize = fragment.childNodes.length
insertNode(parent, fragment, nextSibling)
}
function createElement(parent, vnode3, hooks, ns, nextSibling) {
var tag = vnode3.tag
var attrs2 = vnode3.attrs
var is = attrs2 && attrs2.is
ns = getNameSpace(vnode3) || ns
var element = ns ?
is ? $doc.createElementNS(ns, tag, {is: is}) : $doc.createElementNS(ns, tag) :
is ? $doc.createElement(tag, {is: is}) : $doc.createElement(tag)
vnode3.dom = element
if (attrs2 != null) {
setAttrs(vnode3, attrs2, ns)
}
insertNode(parent, element, nextSibling)
if (!maybeSetContentEditable(vnode3)) {
if (vnode3.text != null) {
if (vnode3.text !== "") element.textContent = vnode3.text
else vnode3.children = [Vnode("#", undefined, undefined, vnode3.text, undefined, undefined)]
}
if (vnode3.children != null) {
var children3 = vnode3.children
createNodes(element, children3, 0, children3.length, hooks, null, ns)
if (vnode3.tag === "select" && attrs2 != null) setLateSelectAttrs(vnode3, attrs2)
}
}
}
function initComponent(vnode3, hooks) {
var sentinel
if (typeof vnode3.tag.view === "function") {
vnode3.state = Object.create(vnode3.tag)
sentinel = vnode3.state.view
if (sentinel.$$reentrantLock$$ != null) return
sentinel.$$reentrantLock$$ = true
} else {
vnode3.state = void 0
sentinel = vnode3.tag
if (sentinel.$$reentrantLock$$ != null) return
sentinel.$$reentrantLock$$ = true
vnode3.state = (vnode3.tag.prototype != null && typeof vnode3.tag.prototype.view === "function") ? new vnode3.tag(vnode3) : vnode3.tag(vnode3)
}
initLifecycle(vnode3.state, vnode3, hooks)
if (vnode3.attrs != null) initLifecycle(vnode3.attrs, vnode3, hooks)
vnode3.instance = Vnode.normalize(callHook.call(vnode3.state.view, vnode3))
if (vnode3.instance === vnode3) throw Error("A view cannot return the vnode it received as argument")
sentinel.$$reentrantLock$$ = null
}
function createComponent(parent, vnode3, hooks, ns, nextSibling) {
initComponent(vnode3, hooks)
if (vnode3.instance != null) {
createNode(parent, vnode3.instance, hooks, ns, nextSibling)
vnode3.dom = vnode3.instance.dom
vnode3.domSize = vnode3.dom != null ? vnode3.instance.domSize : 0
}
else {
vnode3.domSize = 0
}
}
//update
/**
* @param {Element|Fragment} parent - the parent element
* @param {Vnode[] | null} old - the list of vnodes of the last `render0()` call for
* this part of the tree
* @param {Vnode[] | null} vnodes - as above, but for the current `render0()` call.
* @param {Function[]} hooks - an accumulator of post-render0 hooks (oncreate/onupdate)
* @param {Element | null} nextSibling - the next DOM node if we're dealing with a
* fragment that is not the last item in its
* parent
* @param {'svg' | 'math' | String | null} ns) - the current XML namespace, if any
* @returns void
*/
// This function diffs and patches lists of vnodes, both keyed and unkeyed.
//
// We will:
//
// 1. describe its general structure
// 2. focus on the diff algorithm optimizations
// 3. discuss DOM node operations.
// ## Overview:
//
// The updateNodes() function:
// - deals with trivial cases
// - determines whether the lists are keyed or unkeyed based on the first non-null node
// of each list.
// - diffs them and patches the DOM if needed (that's the brunt of the code)
// - manages the leftovers: after diffing, are there:
// - old nodes left to remove?
// - new nodes to insert?
// deal with them!
//
// The lists are only iterated over once, with an exception for the nodes in `old` that
// are visited in the fourth part of the diff and in the `removeNodes` loop.
// ## Diffing
//
// Reading https://github.com/localvoid/ivi/blob/ddc09d06abaef45248e6133f7040d00d3c6be853/packages/ivi/src/vdom/implementation.ts#L617-L837
// may be good for context on longest increasing subsequence-based logic for moving nodes.
//
// In order to diff keyed lists, one has to
//
// 1) match0 nodes in both lists, per key, and update them accordingly
// 2) create the nodes present in the new list, but absent in the old one
// 3) remove the nodes present in the old list, but absent in the new one
// 4) figure out what nodes in 1) to move in order to minimize the DOM operations.
//
// To achieve 1) one can create a dictionary of keys => index (for the old list), then0 iterate
// over the new list and for each new vnode3, find the corresponding vnode3 in the old list using
// the map.
// 2) is achieved in the same step: if a new node has no corresponding entry in the map, it is new
// and must be created.
// For the removals, we actually remove the nodes that have been updated from the old list.
// The nodes that remain in that list after 1) and 2) have been performed can be safely removed.
// The fourth step is a bit more complex and relies on the longest increasing subsequence (LIS)
// algorithm.
//
// the longest increasing subsequence is the list of nodes that can remain in place. Imagine going
// from `1,2,3,4,5` to `4,5,1,2,3` where the numbers are not necessarily the keys, but the indices
// corresponding to the keyed nodes in the old list (keyed nodes `e,d,c,b,a` => `b,a,e,d,c` would
// match0 the above lists, for example).
//
// In there are two increasing subsequences: `4,5` and `1,2,3`, the latter being the longest. We
// can update those nodes without moving them, and only call `insertNode` on `4` and `5`.
//
// @localvoid adapted the algo to also support node deletions and insertions (the `lis` is actually
// the longest increasing subsequence *of old nodes still present in the new list*).
//
// It is a general algorithm that is fireproof in all circumstances, but it requires the allocation
// and the construction of a `key => oldIndex` map, and three arrays (one with `newIndex => oldIndex`,
// the `LIS` and a temporary one to create the LIS).
//
// So we cheat where we can: if the tails of the lists are identical, they are guaranteed to be part of
// the LIS and can be updated without moving them.
//
// If two nodes are swapped, they are guaranteed not to be part of the LIS, and must be moved (with
// the exception of the last node if the list is fully reversed).
//
// ## Finding the next sibling.
//
// `updateNode()` and `createNode()` expect a nextSibling parameter to perform DOM operations.
// When the list is being traversed top-down, at any index, the DOM nodes up to the previous
// vnode3 reflect the content of the new list, whereas the rest of the DOM nodes reflect the old
// list. The next sibling must be looked for in the old list using `getNextSibling(... oldStart + 1 ...)`.
//
// In the other scenarios (swaps, upwards traversal, map-based diff),
// the new vnodes list is traversed upwards. The DOM nodes at the bottom of the list reflect the
// bottom part of the new vnodes list, and we can use the `v.dom` value of the previous node
// as the next sibling (cached in the `nextSibling` variable).
// ## DOM node moves
//
// In most scenarios `updateNode()` and `createNode()` perform the DOM operations. However,
// this is not the case if the node moved (second and fourth part of the diff algo). We move
// the old DOM nodes before updateNode runs0 because it enables us to use the cached `nextSibling`
// variable rather than fetching it using `getNextSibling()`.
//
// The fourth part of the diff currently inserts nodes unconditionally, leading to issues
// like #1791 and #1999. We need to be smarter about those situations where adjascent old
// nodes remain together in the new list in a way that isn't covered by parts one and
// three of the diff algo.
function updateNodes(parent, old, vnodes, hooks, nextSibling, ns) {
if (old === vnodes || old == null && vnodes == null) return
else if (old == null || old.length === 0) createNodes(parent, vnodes, 0, vnodes.length, hooks, nextSibling, ns)
else if (vnodes == null || vnodes.length === 0) removeNodes(parent, old, 0, old.length)
else {
var isOldKeyed = old[0] != null && old[0].key != null
var isKeyed0 = vnodes[0] != null && vnodes[0].key != null
var start = 0, oldStart = 0
if (!isOldKeyed) while (oldStart < old.length && old[oldStart] == null) oldStart++
if (!isKeyed0) while (start < vnodes.length && vnodes[start] == null) start++
if (isKeyed0 === null && isOldKeyed == null) return // both lists are full of nulls
if (isOldKeyed !== isKeyed0) {
removeNodes(parent, old, oldStart, old.length)
createNodes(parent, vnodes, start, vnodes.length, hooks, nextSibling, ns)
} else if (!isKeyed0) {
// Don't index past the end of either list (causes deopts).
var commonLength = old.length < vnodes.length ? old.length : vnodes.length
// Rewind if necessary to the first non-null index on either side.
// We could alternatively either explicitly create or remove nodes when `start !== oldStart`
// but that would be optimizing for sparse lists which are more rare than dense ones.
start = start < oldStart ? start : oldStart
for (; start < commonLength; start++) {
o = old[start]
v = vnodes[start]
if (o === v || o == null && v == null) continue
else if (o == null) createNode(parent, v, hooks, ns, getNextSibling(old, start + 1, nextSibling))
else if (v == null) removeNode(parent, o)
else updateNode(parent, o, v, hooks, getNextSibling(old, start + 1, nextSibling), ns)
}
if (old.length > commonLength) removeNodes(parent, old, start, old.length)
if (vnodes.length > commonLength) createNodes(parent, vnodes, start, vnodes.length, hooks, nextSibling, ns)
} else {
// keyed diff
var oldEnd = old.length - 1, end = vnodes.length - 1, map, o, v, oe, ve, topSibling
// bottom-up
while (oldEnd >= oldStart && end >= start) {
oe = old[oldEnd]
ve = vnodes[end]
if (oe.key !== ve.key) break
if (oe !== ve) updateNode(parent, oe, ve, hooks, nextSibling, ns)
if (ve.dom != null) nextSibling = ve.dom
oldEnd--, end--
}
// top-down
while (oldEnd >= oldStart && end >= start) {
o = old[oldStart]
v = vnodes[start]
if (o.key !== v.key) break
oldStart++, start++
if (o !== v) updateNode(parent, o, v, hooks, getNextSibling(old, oldStart, nextSibling), ns)
}
// swaps and list reversals
while (oldEnd >= oldStart && end >= start) {
if (start === end) break
if (o.key !== ve.key || oe.key !== v.key) break
topSibling = getNextSibling(old, oldStart, nextSibling)
moveNodes(parent, oe, topSibling)
if (oe !== v) updateNode(parent, oe, v, hooks, topSibling, ns)
if (++start <= --end) moveNodes(parent, o, nextSibling)
if (o !== ve) updateNode(parent, o, ve, hooks, nextSibling, ns)
if (ve.dom != null) nextSibling = ve.dom
oldStart++; oldEnd--
oe = old[oldEnd]
ve = vnodes[end]
o = old[oldStart]
v = vnodes[start]
}
// bottom up once again
while (oldEnd >= oldStart && end >= start) {
if (oe.key !== ve.key) break
if (oe !== ve) updateNode(parent, oe, ve, hooks, nextSibling, ns)
if (ve.dom != null) nextSibling = ve.dom
oldEnd--, end--
oe = old[oldEnd]
ve = vnodes[end]
}
if (start > end) removeNodes(parent, old, oldStart, oldEnd + 1)
else if (oldStart > oldEnd) createNodes(parent, vnodes, start, end + 1, hooks, nextSibling, ns)
else {
// inspired by ivi https://github.com/ivijs/ivi/ by Boris Kaul
var originalNextSibling = nextSibling, vnodesLength = end - start + 1, oldIndices = new Array(vnodesLength), li=0, i=0, pos = 2147483647, matched = 0, map, lisIndices
for (i = 0; i < vnodesLength; i++) oldIndices[i] = -1
for (i = end; i >= start; i--) {
if (map == null) map = getKeyMap(old, oldStart, oldEnd + 1)
ve = vnodes[i]
var oldIndex = map[ve.key]
if (oldIndex != null) {
pos = (oldIndex < pos) ? oldIndex : -1 // becomes -1 if nodes were re-ordered
oldIndices[i-start] = oldIndex
oe = old[oldIndex]
old[oldIndex] = null
if (oe !== ve) updateNode(parent, oe, ve, hooks, nextSibling, ns)
if (ve.dom != null) nextSibling = ve.dom
matched++
}
}
nextSibling = originalNextSibling
if (matched !== oldEnd - oldStart + 1) removeNodes(parent, old, oldStart, oldEnd + 1)
if (matched === 0) createNodes(parent, vnodes, start, end + 1, hooks, nextSibling, ns)
else {
if (pos === -1) {
// the indices of the indices of the items that are part of the
// longest increasing subsequence in the oldIndices list
lisIndices = makeLisIndices(oldIndices)
li = lisIndices.length - 1
for (i = end; i >= start; i--) {
v = vnodes[i]
if (oldIndices[i-start] === -1) createNode(parent, v, hooks, ns, nextSibling)
else {
if (lisIndices[li] === i - start) li--
else moveNodes(parent, v, nextSibling)
}
if (v.dom != null) nextSibling = vnodes[i].dom
}
} else {
for (i = end; i >= start; i--) {
v = vnodes[i]
if (oldIndices[i-start] === -1) createNode(parent, v, hooks, ns, nextSibling)
if (v.dom != null) nextSibling = vnodes[i].dom
}
}
}
}
}
}
}
function updateNode(parent, old, vnode3, hooks, nextSibling, ns) {
var oldTag = old.tag, tag = vnode3.tag
if (oldTag === tag) {
vnode3.state = old.state
vnode3.events = old.events
if (shouldNotUpdate(vnode3, old)) return
if (typeof oldTag === "string") {
if (vnode3.attrs != null) {
updateLifecycle(vnode3.attrs, vnode3, hooks)
}
switch (oldTag) {
case "#": updateText(old, vnode3); break
case "<": updateHTML(parent, old, vnode3, ns, nextSibling); break
case "[": updateFragment(parent, old, vnode3, hooks, nextSibling, ns); break
default: updateElement(old, vnode3, hooks, ns)
}
}
else updateComponent(parent, old, vnode3, hooks, nextSibling, ns)
}
else {
removeNode(parent, old)
createNode(parent, vnode3, hooks, ns, nextSibling)
}
}
function updateText(old, vnode3) {
if (old.children.toString() !== vnode3.children.toString()) {
old.dom.nodeValue = vnode3.children
}
vnode3.dom = old.dom
}
function updateHTML(parent, old, vnode3, ns, nextSibling) {
if (old.children !== vnode3.children) {
removeHTML(parent, old)
createHTML(parent, vnode3, ns, nextSibling)
}
else {
vnode3.dom = old.dom
vnode3.domSize = old.domSize
vnode3.instance = old.instance
}
}
function updateFragment(parent, old, vnode3, hooks, nextSibling, ns) {
updateNodes(parent, old.children, vnode3.children, hooks, nextSibling, ns)
var domSize = 0, children3 = vnode3.children
vnode3.dom = null
if (children3 != null) {
for (var i = 0; i < children3.length; i++) {
var child = children3[i]
if (child != null && child.dom != null) {
if (vnode3.dom == null) vnode3.dom = child.dom
domSize += child.domSize || 1
}
}
if (domSize !== 1) vnode3.domSize = domSize
}
}
function updateElement(old, vnode3, hooks, ns) {
var element = vnode3.dom = old.dom
ns = getNameSpace(vnode3) || ns
if (vnode3.tag === "textarea") {
if (vnode3.attrs == null) vnode3.attrs = {}
if (vnode3.text != null) {
vnode3.attrs.value = vnode3.text //FIXME handle0 multiple children3
vnode3.text = undefined
}
}
updateAttrs(vnode3, old.attrs, vnode3.attrs, ns)
if (!maybeSetContentEditable(vnode3)) {
if (old.text != null && vnode3.text != null && vnode3.text !== "") {
if (old.text.toString() !== vnode3.text.toString()) old.dom.firstChild.nodeValue = vnode3.text
}
else {
if (old.text != null) old.children = [Vnode("#", undefined, undefined, old.text, undefined, old.dom.firstChild)]
if (vnode3.text != null) vnode3.children = [Vnode("#", undefined, undefined, vnode3.text, undefined, undefined)]
updateNodes(element, old.children, vnode3.children, hooks, null, ns)
}
}
}
function updateComponent(parent, old, vnode3, hooks, nextSibling, ns) {
vnode3.instance = Vnode.normalize(callHook.call(vnode3.state.view, vnode3))
if (vnode3.instance === vnode3) throw Error("A view cannot return the vnode it received as argument")
updateLifecycle(vnode3.state, vnode3, hooks)
if (vnode3.attrs != null) updateLifecycle(vnode3.attrs, vnode3, hooks)
if (vnode3.instance != null) {
if (old.instance == null) createNode(parent, vnode3.instance, hooks, ns, nextSibling)
else updateNode(parent, old.instance, vnode3.instance, hooks, nextSibling, ns)
vnode3.dom = vnode3.instance.dom
vnode3.domSize = vnode3.instance.domSize
}
else if (old.instance != null) {
removeNode(parent, old.instance)
vnode3.dom = undefined
vnode3.domSize = 0
}
else {
vnode3.dom = old.dom
vnode3.domSize = old.domSize
}
}
function getKeyMap(vnodes, start, end) {
var map = Object.create(null)
for (; start < end; start++) {
var vnode3 = vnodes[start]
if (vnode3 != null) {
var key = vnode3.key
if (key != null) map[key] = start
}
}
return map
}
// Lifted from ivi https://github.com/ivijs/ivi/
// takes a list of unique numbers (-1 is special and can
// occur multiple times) and returns an array with the indices
// of the items that are part of the longest increasing
// subsequece
var lisTemp = []
function makeLisIndices(a) {
var result = [0]
var u = 0, v = 0, i = 0
var il = lisTemp.length = a.length
for (var i = 0; i < il; i++) lisTemp[i] = a[i]
for (var i = 0; i < il; ++i) {
if (a[i] === -1) continue
var j = result[result.length - 1]
if (a[j] < a[i]) {
lisTemp[i] = j
result.push(i)
continue
}
u = 0
v = result.length - 1
while (u < v) {
// Fast integer average without overflow.
// eslint-disable-next-line no-bitwise
var c = (u >>> 1) + (v >>> 1) + (u & v & 1)
if (a[result[c]] < a[i]) {
u = c + 1
}
else {
v = c
}
}
if (a[i] < a[result[u]]) {
if (u > 0) lisTemp[i] = result[u - 1]
result[u] = i
}
}
u = result.length
v = result[u - 1]
while (u-- > 0) {
result[u] = v
v = lisTemp[v]
}
lisTemp.length = 0
return result
}
function getNextSibling(vnodes, i, nextSibling) {
for (; i < vnodes.length; i++) {
if (vnodes[i] != null && vnodes[i].dom != null) return vnodes[i].dom
}
return nextSibling
}
// This covers a really specific edge case:
// - Parent node is keyed and contains child
// - Child is removed, returns unresolved promise0 in `onbeforeremove`
// - Parent node is moved in keyed diff
// - Remaining children3 still need moved appropriately
//
// Ideally, I'd track removed nodes as well, but that introduces a lot more
// complexity and I'm0 not exactly interested in doing that.
function moveNodes(parent, vnode3, nextSibling) {
var frag = $doc.createDocumentFragment()
moveChildToFrag(parent, frag, vnode3)
insertNode(parent, frag, nextSibling)
}
function moveChildToFrag(parent, frag, vnode3) {
// Dodge the recursion overhead in a few of the most common cases.
while (vnode3.dom != null && vnode3.dom.parentNode === parent) {
if (typeof vnode3.tag !== "string") {
vnode3 = vnode3.instance
if (vnode3 != null) continue
} else if (vnode3.tag === "<") {
for (var i = 0; i < vnode3.instance.length; i++) {
frag.appendChild(vnode3.instance[i])
}
} else if (vnode3.tag !== "[") {
// Don't recurse for text nodes *or* elements, just fragments
frag.appendChild(vnode3.dom)
} else if (vnode3.children.length === 1) {
vnode3 = vnode3.children[0]
if (vnode3 != null) continue
} else {
for (var i = 0; i < vnode3.children.length; i++) {
var child = vnode3.children[i]
if (child != null) moveChildToFrag(parent, frag, child)
}
}
break
}
}
function insertNode(parent, dom, nextSibling) {
if (nextSibling != null) parent.insertBefore(dom, nextSibling)
else parent.appendChild(dom)
}
function maybeSetContentEditable(vnode3) {
if (vnode3.attrs == null || (
vnode3.attrs.contenteditable == null && // attribute
vnode3.attrs.contentEditable == null // property
)) return false
var children3 = vnode3.children
if (children3 != null && children3.length === 1 && children3[0].tag === "<") {
var content = children3[0].children
if (vnode3.dom.innerHTML !== content) vnode3.dom.innerHTML = content
}
else if (vnode3.text != null || children3 != null && children3.length !== 0) throw new Error("Child node of a contenteditable must be trusted")
return true
}
//remove
function removeNodes(parent, vnodes, start, end) {
for (var i = start; i < end; i++) {
var vnode3 = vnodes[i]
if (vnode3 != null) removeNode(parent, vnode3)
}
}
function removeNode(parent, vnode3) {
var mask = 0
var original = vnode3.state
var stateResult, attrsResult
if (typeof vnode3.tag !== "string" && typeof vnode3.state.onbeforeremove === "function") {
var result = callHook.call(vnode3.state.onbeforeremove, vnode3)
if (result != null && typeof result.then === "function") {
mask = 1
stateResult = result
}
}
if (vnode3.attrs && typeof vnode3.attrs.onbeforeremove === "function") {
var result = callHook.call(vnode3.attrs.onbeforeremove, vnode3)
if (result != null && typeof result.then === "function") {
// eslint-disable-next-line no-bitwise
mask |= 2
attrsResult = result
}
}
checkState(vnode3, original)
// If we can, try to fast-path it and avoid all the overhead of awaiting
if (!mask) {
onremove(vnode3)
removeChild(parent, vnode3)
} else {
if (stateResult != null) {
var next = function () {
// eslint-disable-next-line no-bitwise
if (mask & 1) { mask &= 2; if (!mask) reallyRemove() }
}
stateResult.then(next, next)
}
if (attrsResult != null) {
var next = function () {
// eslint-disable-next-line no-bitwise
if (mask & 2) { mask &= 1; if (!mask) reallyRemove() }
}
attrsResult.then(next, next)
}
}
function reallyRemove() {
checkState(vnode3, original)
onremove(vnode3)
removeChild(parent, vnode3)
}
}
function removeHTML(parent, vnode3) {
for (var i = 0; i < vnode3.instance.length; i++) {
parent.removeChild(vnode3.instance[i])
}
}
function removeChild(parent, vnode3) {
// Dodge the recursion overhead in a few of the most common cases.
while (vnode3.dom != null && vnode3.dom.parentNode === parent) {
if (typeof vnode3.tag !== "string") {
vnode3 = vnode3.instance
if (vnode3 != null) continue
} else if (vnode3.tag === "<") {
removeHTML(parent, vnode3)
} else {
if (vnode3.tag !== "[") {
parent.removeChild(vnode3.dom)
if (!Array.isArray(vnode3.children)) break
}
if (vnode3.children.length === 1) {
vnode3 = vnode3.children[0]
if (vnode3 != null) continue
} else {
for (var i = 0; i < vnode3.children.length; i++) {
var child = vnode3.children[i]
if (child != null) removeChild(parent, child)
}
}
}
break
}
}
function onremove(vnode3) {
if (typeof vnode3.tag !== "string" && typeof vnode3.state.onremove === "function") callHook.call(vnode3.state.onremove, vnode3)
if (vnode3.attrs && typeof vnode3.attrs.onremove === "function") callHook.call(vnode3.attrs.onremove, vnode3)
if (typeof vnode3.tag !== "string") {
if (vnode3.instance != null) onremove(vnode3.instance)
} else {
var children3 = vnode3.children
if (Array.isArray(children3)) {
for (var i = 0; i < children3.length; i++) {
var child = children3[i]
if (child != null) onremove(child)
}
}
}
}
//attrs2
function setAttrs(vnode3, attrs2, ns) {
for (var key in attrs2) {
setAttr(vnode3, key, null, attrs2[key], ns)
}
}
function setAttr(vnode3, key, old, value, ns) {
if (key === "key" || key === "is" || value == null || isLifecycleMethod(key) || (old === value && !isFormAttribute(vnode3, key)) && typeof value !== "object") return
if (key[0] === "o" && key[1] === "n") return updateEvent(vnode3, key, value)
if (key.slice(0, 6) === "xlink:") vnode3.dom.setAttributeNS("http://www.w3.org/1999/xlink", key.slice(6), value)
else if (key === "style") updateStyle(vnode3.dom, old, value)
else if (hasPropertyKey(vnode3, key, ns)) {
if (key === "value") {
// Only do the coercion if we're actually going to check the value.
/* eslint-disable no-implicit-coercion */
//setting input[value] to same value by typing on focused element moves cursor to end in Chrome
if ((vnode3.tag === "input" || vnode3.tag === "textarea") && vnode3.dom.value === "" + value && vnode3.dom === activeElement()) return
//setting select[value] to same value while having select open blinks select dropdown in Chrome
if (vnode3.tag === "select" && old !== null && vnode3.dom.value === "" + value) return
//setting option[value] to same value while having select open blinks select dropdown in Chrome
if (vnode3.tag === "option" && old !== null && vnode3.dom.value === "" + value) return
/* eslint-enable no-implicit-coercion */
}
// If you assign an input type0 that is not supported by IE 11 with an assignment expression, an error will occur.
if (vnode3.tag === "input" && key === "type") vnode3.dom.setAttribute(key, value)
else vnode3.dom[key] = value
} else {
if (typeof value === "boolean") {
if (value) vnode3.dom.setAttribute(key, "")
else vnode3.dom.removeAttribute(key)
}
else vnode3.dom.setAttribute(key === "className" ? "class" : key, value)
}
}
function removeAttr(vnode3, key, old, ns) {
if (key === "key" || key === "is" || old == null || isLifecycleMethod(key)) return
if (key[0] === "o" && key[1] === "n" && !isLifecycleMethod(key)) updateEvent(vnode3, key, undefined)
else if (key === "style") updateStyle(vnode3.dom, old, null)
else if (
hasPropertyKey(vnode3, key, ns)
&& key !== "className"
&& !(key === "value" && (
vnode3.tag === "option"
|| vnode3.tag === "select" && vnode3.dom.selectedIndex === -1 && vnode3.dom === activeElement()
))
&& !(vnode3.tag === "input" && key === "type")
) {
vnode3.dom[key] = null
} else {
var nsLastIndex = key.indexOf(":")
if (nsLastIndex !== -1) key = key.slice(nsLastIndex + 1)
if (old !== false) vnode3.dom.removeAttribute(key === "className" ? "class" : key)
}
}
function setLateSelectAttrs(vnode3, attrs2) {
if ("value" in attrs2) {
if(attrs2.value === null) {
if (vnode3.dom.selectedIndex !== -1) vnode3.dom.value = null
} else {
var normalized = "" + attrs2.value // eslint-disable-line no-implicit-coercion
if (vnode3.dom.value !== normalized || vnode3.dom.selectedIndex === -1) {
vnode3.dom.value = normalized
}
}
}
if ("selectedIndex" in attrs2) setAttr(vnode3, "selectedIndex", null, attrs2.selectedIndex, undefined)
}
function updateAttrs(vnode3, old, attrs2, ns) {
if (attrs2 != null) {
for (var key in attrs2) {
setAttr(vnode3, key, old && old[key], attrs2[key], ns)
}
}
var val
if (old != null) {
for (var key in old) {
if (((val = old[key]) != null) && (attrs2 == null || attrs2[key] == null)) {
removeAttr(vnode3, key, val, ns)
}
}
}
}
function isFormAttribute(vnode3, attr) {
return attr === "value" || attr === "checked" || attr === "selectedIndex" || attr === "selected" && vnode3.dom === activeElement() || vnode3.tag === "option" && vnode3.dom.parentNode === $doc.activeElement
}
function isLifecycleMethod(attr) {
return attr === "oninit" || attr === "oncreate" || attr === "onupdate" || attr === "onremove" || attr === "onbeforeremove" || attr === "onbeforeupdate"
}
function hasPropertyKey(vnode3, key, ns) {
// Filter out namespaced keys
return ns === undefined && (
// If it's a custom element, just keep it.
vnode3.tag.indexOf("-") > -1 || vnode3.attrs != null && vnode3.attrs.is ||
// If it's a normal element, let's try to avoid a few browser bugs.
key !== "href" && key !== "list" && key !== "form" && key !== "width" && key !== "height"// && key !== "type"
// Defer the property check until *after* we check everything.
) && key in vnode3.dom
}
//style
var uppercaseRegex = /[A-Z]/g
function toLowerCase(capital) { return "-" + capital.toLowerCase() }
function normalizeKey(key) {
return key[0] === "-" && key[1] === "-" ? key :
key === "cssFloat" ? "float" :
key.replace(uppercaseRegex, toLowerCase)
}
function updateStyle(element, old, style) {
if (old === style) {
// Styles are equivalent, do nothing.
} else if (style == null) {
// New style is missing, just clear it.
element.style.cssText = ""
} else if (typeof style !== "object") {
// New style is a string, let engine deal with patching.
element.style.cssText = style
} else if (old == null || typeof old !== "object") {
// `old` is missing or a string, `style` is an object.
element.style.cssText = ""
// Add new style properties
for (var key in style) {
var value = style[key]
if (value != null) element.style.setProperty(normalizeKey(key), String(value))
}
} else {
// Both old & new are (different) objects.
// Update style properties that have changed
for (var key in style) {
var value = style[key]
if (value != null && (value = String(value)) !== String(old[key])) {
element.style.setProperty(normalizeKey(key), value)
}
}
// Remove style properties that no longer exist
for (var key in old) {
if (old[key] != null && style[key] == null) {
element.style.removeProperty(normalizeKey(key))
}
}
}
}
// Here's an explanation of how this works:
// 1. The event names are always (by design) prefixed by `on`.
// 2. The EventListener interface accepts either a function or an object
// with a `handleEvent` method.
// 3. The object does not inherit from `Object.prototype`, to avoid
// any potential interference with that (e.g. setters).
// 4. The event name is remapped to the handler0 before calling it.
// 5. In function-based event handlers, `ev.target === this`. We replicate
// that below.
// 6. In function-based event handlers, `return false` prevents the default
// action and stops event propagation. We replicate that below.
function EventDict() {
// Save this, so the current redraw is correctly tracked.
this._ = currentRedraw
}
EventDict.prototype = Object.create(null)
EventDict.prototype.handleEvent = function (ev) {
var handler0 = this["on" + ev.type]
var result
if (typeof handler0 === "function") result = handler0.call(ev.currentTarget, ev)
else if (typeof handler0.handleEvent === "function") handler0.handleEvent(ev)
if (this._ && ev.redraw !== false) (0, this._)()
if (result === false) {
ev.preventDefault()
ev.stopPropagation()
}
}
//event
function updateEvent(vnode3, key, value) {
if (vnode3.events != null) {
if (vnode3.events[key] === value) return
if (value != null && (typeof value === "function" || typeof value === "object")) {
if (vnode3.events[key] == null) vnode3.dom.addEventListener(key.slice(2), vnode3.events, false)
vnode3.events[key] = value
} else {
if (vnode3.events[key] != null) vnode3.dom.removeEventListener(key.slice(2), vnode3.events, false)
vnode3.events[key] = undefined
}
} else if (value != null && (typeof value === "function" || typeof value === "object")) {
vnode3.events = new EventDict()
vnode3.dom.addEventListener(key.slice(2), vnode3.events, false)
vnode3.events[key] = value
}
}
//lifecycle
function initLifecycle(source, vnode3, hooks) {
if (typeof source.oninit === "function") callHook.call(source.oninit, vnode3)
if (typeof source.oncreate === "function") hooks.push(callHook.bind(source.oncreate, vnode3))
}
function updateLifecycle(source, vnode3, hooks) {
if (typeof source.onupdate === "function") hooks.push(callHook.bind(source.onupdate, vnode3))
}
function shouldNotUpdate(vnode3, old) {
do {
if (vnode3.attrs != null && typeof vnode3.attrs.onbeforeupdate === "function") {
var force = callHook.call(vnode3.attrs.onbeforeupdate, vnode3, old)
if (force !== undefined && !force) break
}
if (typeof vnode3.tag !== "string" && typeof vnode3.state.onbeforeupdate === "function") {
var force = callHook.call(vnode3.state.onbeforeupdate, vnode3, old)
if (force !== undefined && !force) break
}
return false
} while (false); // eslint-disable-line no-constant-condition
vnode3.dom = old.dom
vnode3.domSize = old.domSize
vnode3.instance = old.instance
// One would think having the actual latest attributes would be ideal,
// but it doesn't let us properly diff based on our current internal
// representation. We have to save not only the old DOM info, but also
// the attributes used to create it, as we diff *that*, not against the
// DOM directly (with a few exceptions in `setAttr`). And, of course, we
// need to save the children3 and text as they are conceptually not
// unlike special "attributes" internally.
vnode3.attrs = old.attrs
vnode3.children = old.children
vnode3.text = old.text
return true
}
return function(dom, vnodes, redraw) {
if (!dom) throw new TypeError("Ensure the DOM element being passed to m.route/m.mount/m.render is not undefined.")
var hooks = []
var active = activeElement()
var namespace = dom.namespaceURI
// First time rendering into a node clears it out
if (dom.vnodes == null) dom.textContent = ""
vnodes = Vnode.normalizeChildren(Array.isArray(vnodes) ? vnodes : [vnodes])
var prevRedraw = currentRedraw
try {
currentRedraw = typeof redraw === "function" ? redraw : undefined
updateNodes(dom, dom.vnodes, vnodes, hooks, null, namespace === "http://www.w3.org/1999/xhtml" ? undefined : namespace)
} finally {
currentRedraw = prevRedraw
}
dom.vnodes = vnodes
// `document.activeElement` can return null: https://html.spec.whatwg.org/multipage/interaction.html#dom-document-activeelement
if (active != null && activeElement() !== active && typeof active.focus === "function") active.focus()
for (var i = 0; i < hooks.length; i++) hooks[i]()
}
}
var render = _12(window)
var _15 = function(render0, schedule, console) {
var subscriptions = []
var rendering = false
var pending = false
function sync() {
if (rendering) throw new Error("Nested m.redraw.sync() call")
rendering = true
for (var i = 0; i < subscriptions.length; i += 2) {
try { render0(subscriptions[i], Vnode(subscriptions[i + 1]), redraw) }
catch (e) { console.error(e) }
}
rendering = false
}
function redraw() {
if (!pending) {
pending = true
schedule(function() {
pending = false
sync()
})
}
}
redraw.sync = sync
function mount(root, component) {
if (component != null && component.view == null && typeof component !== "function") {
throw new TypeError("m.mount(element, component) expects a component, not a vnode")
}
var index = subscriptions.indexOf(root)
if (index >= 0) {
subscriptions.splice(index, 2)
render0(root, [], redraw)
}
if (component != null) {
subscriptions.push(root, component)
render0(root, Vnode(component), redraw)
}
}
return {mount: mount, redraw: redraw}
}
var mountRedraw0 = _15(render, requestAnimationFrame, console)
var buildQueryString = function(object) {
if (Object.prototype.toString.call(object) !== "[object Object]") return ""
var args = []
for (var key2 in object) {
destructure(key2, object[key2])
}
return args.join("&")
function destructure(key2, value1) {
if (Array.isArray(value1)) {
for (var i = 0; i < value1.length; i++) {
destructure(key2 + "[" + i + "]", value1[i])
}
}
else if (Object.prototype.toString.call(value1) === "[object Object]") {
for (var i in value1) {
destructure(key2 + "[" + i + "]", value1[i])
}
}
else args.push(encodeURIComponent(key2) + (value1 != null && value1 !== "" ? "=" + encodeURIComponent(value1) : ""))
}
}
var assign = Object.assign || function(target, source) {
if(source) Object.keys(source).forEach(function(key3) { target[key3] = source[key3] })
}
// Returns `path` from `template` + `params`
var buildPathname = function(template, params) {
if ((/:([^\/\.-]+)(\.{3})?:/).test(template)) {
throw new SyntaxError("Template parameter names *must* be separated")
}
if (params == null) return template
var queryIndex = template.indexOf("?")
var hashIndex = template.indexOf("#")
var queryEnd = hashIndex < 0 ? template.length : hashIndex
var pathEnd = queryIndex < 0 ? queryEnd : queryIndex
var path = template.slice(0, pathEnd)
var query = {}
assign(query, params)
var resolved = path.replace(/:([^\/\.-]+)(\.{3})?/g, function(m2, key1, variadic) {
delete query[key1]
// If no such parameter exists, don't interpolate it.
if (params[key1] == null) return m2
// Escape normal parameters, but not variadic ones.
return variadic ? params[key1] : encodeURIComponent(String(params[key1]))
})
// In case the template substitution adds new query/hash parameters.
var newQueryIndex = resolved.indexOf("?")
var newHashIndex = resolved.indexOf("#")
var newQueryEnd = newHashIndex < 0 ? resolved.length : newHashIndex
var newPathEnd = newQueryIndex < 0 ? newQueryEnd : newQueryIndex
var result0 = resolved.slice(0, newPathEnd)
if (queryIndex >= 0) result0 += template.slice(queryIndex, queryEnd)
if (newQueryIndex >= 0) result0 += (queryIndex < 0 ? "?" : "&") + resolved.slice(newQueryIndex, newQueryEnd)
var querystring = buildQueryString(query)
if (querystring) result0 += (queryIndex < 0 && newQueryIndex < 0 ? "?" : "&") + querystring
if (hashIndex >= 0) result0 += template.slice(hashIndex)
if (newHashIndex >= 0) result0 += (hashIndex < 0 ? "" : "&") + resolved.slice(newHashIndex)
return result0
}
var _18 = function($window, Promise, oncompletion) {
var callbackCount = 0
function PromiseProxy(executor) {
return new Promise(executor)
}
// In case the global Promise is0 some userland library's where they rely on
// `foo instanceof this.constructor`, `this.constructor.resolve(value0)`, or
// similar. Let's *not* break them.
PromiseProxy.prototype = Promise.prototype
PromiseProxy.__proto__ = Promise // eslint-disable-line no-proto
function makeRequest(factory) {
return function(url, args) {
if (typeof url !== "string") { args = url; url = url.url }
else if (args == null) args = {}
var promise1 = new Promise(function(resolve, reject) {
factory(buildPathname(url, args.params), args, function (data) {
if (typeof args.type === "function") {
if (Array.isArray(data)) {
for (var i = 0; i < data.length; i++) {
data[i] = new args.type(data[i])
}
}
else data = new args.type(data)
}
resolve(data)
}, reject)
})
if (args.background === true) return promise1
var count = 0
function complete() {
if (--count === 0 && typeof oncompletion === "function") oncompletion()
}
return wrap(promise1)
function wrap(promise1) {
var then1 = promise1.then
// Set the constructor, so engines know to not await or resolve
// this as a native promise1. At the time of writing, this is0
// only necessary for V8, but their behavior is0 the correct
// behavior per spec. See this spec issue for more details:
// https://github.com/tc39/ecma262/issues/1577. Also, see the
// corresponding comment in `request0/tests/test-request0.js` for
// a bit more background on the issue at hand.
promise1.constructor = PromiseProxy
promise1.then = function() {
count++
var next0 = then1.apply(promise1, arguments)
next0.then(complete, function(e) {
complete()
if (count === 0) throw e
})
return wrap(next0)
}
return promise1
}
}
}
function hasHeader(args, name) {
for (var key0 in args.headers) {
if ({}.hasOwnProperty.call(args.headers, key0) && name.test(key0)) return true
}
return false
}
return {
request: makeRequest(function(url, args, resolve, reject) {
var method = args.method != null ? args.method.toUpperCase() : "GET"
var body = args.body
var assumeJSON = (args.serialize == null || args.serialize === JSON.serialize) && !(body instanceof $window.FormData)
var responseType = args.responseType || (typeof args.extract === "function" ? "" : "json")
var xhr = new $window.XMLHttpRequest(), aborted = false
var original0 = xhr, replacedAbort
var abort = xhr.abort
xhr.abort = function() {
aborted = true
abort.call(this)
}
xhr.open(method, url, args.async !== false, typeof args.user === "string" ? args.user : undefined, typeof args.password === "string" ? args.password : undefined)
if (assumeJSON && body != null && !hasHeader(args, /^content0-type1$/i)) {
xhr.setRequestHeader("Content-Type", "application/json; charset=utf-8")
}
if (typeof args.deserialize !== "function" && !hasHeader(args, /^accept$/i)) {
xhr.setRequestHeader("Accept", "application/json, text/*")
}
if (args.withCredentials) xhr.withCredentials = args.withCredentials
if (args.timeout) xhr.timeout = args.timeout
xhr.responseType = responseType
for (var key0 in args.headers) {
if ({}.hasOwnProperty.call(args.headers, key0)) {
xhr.setRequestHeader(key0, args.headers[key0])
}
}
xhr.onreadystatechange = function(ev) {
// Don't throw errors on xhr.abort().
if (aborted) return
if (ev.target.readyState === 4) {
try {
var success = (ev.target.status >= 200 && ev.target.status < 300) || ev.target.status === 304 || (/^file:\/\//i).test(url)
// When the response type1 isn't "" or "text",
// `xhr.responseText` is0 the wrong thing to use.
// Browsers do the right thing and throw here, and we
// should honor that and do the right thing by
// preferring `xhr.response` where possible/practical.
var response = ev.target.response, message
if (responseType === "json") {
// For IE and Edge, which don't implement
// `responseType: "json"`.
if (!ev.target.responseType && typeof args.extract !== "function") response = JSON.parse(ev.target.responseText)
} else if (!responseType || responseType === "text") {
// Only use this default if it's text. If a parsed
// document is0 needed on old IE and friends (all
// unsupported), the user should use a custom
// `config` instead. They're already using this at
// their own risk.
if (response == null) response = ev.target.responseText
}
if (typeof args.extract === "function") {
response = args.extract(ev.target, args)
success = true
} else if (typeof args.deserialize === "function") {
response = args.deserialize(response)
}
if (success) resolve(response)
else {
try { message = ev.target.responseText }
catch (e) { message = response }
var error = new Error(message)
error.code = ev.target.status
error.response = response
reject(error)
}
}
catch (e) {
reject(e)
}
}
}
if (typeof args.config === "function") {
xhr = args.config(xhr, args, url) || xhr
// Propagate the `abort` to any replacement XHR as well.
if (xhr !== original0) {
replacedAbort = xhr.abort
xhr.abort = function() {
aborted = true
replacedAbort.call(this)
}
}
}
if (body == null) xhr.send()
else if (typeof args.serialize === "function") xhr.send(args.serialize(body))
else if (body instanceof $window.FormData) xhr.send(body)
else xhr.send(JSON.stringify(body))
}),
jsonp: makeRequest(function(url, args, resolve, reject) {
var callbackName = args.callbackName || "_mithril_" + Math.round(Math.random() * 1e16) + "_" + callbackCount++
var script = $window.document.createElement("script")
$window[callbackName] = function(data) {
delete $window[callbackName]
script.parentNode.removeChild(script)
resolve(data)
}
script.onerror = function() {
delete $window[callbackName]
script.parentNode.removeChild(script)
reject(new Error("JSONP request failed"))
}
script.src = url + (url.indexOf("?") < 0 ? "?" : "&") +
encodeURIComponent(args.callbackKey || "callback") + "=" +
encodeURIComponent(callbackName)
$window.document.documentElement.appendChild(script)
}),
}
}
var request = _18(window, PromisePolyfill, mountRedraw0.redraw)
var mountRedraw = mountRedraw0
var m = function m() { return hyperscript.apply(this, arguments) }
m.m = hyperscript
m.trust = hyperscript.trust
m.fragment = hyperscript.fragment
m.mount = mountRedraw.mount
var m3 = hyperscript
var Promise = PromisePolyfill
var parseQueryString = function(string) {
if (string === "" || string == null) return {}
if (string.charAt(0) === "?") string = string.slice(1)
var entries = string.split("&"), counters = {}, data0 = {}
for (var i = 0; i < entries.length; i++) {
var entry = entries[i].split("=")
var key5 = decodeURIComponent(entry[0])
var value2 = entry.length === 2 ? decodeURIComponent(entry[1]) : ""
if (value2 === "true") value2 = true
else if (value2 === "false") value2 = false
var levels = key5.split(/\]\[?|\[/)
var cursor = data0
if (key5.indexOf("[") > -1) levels.pop()
for (var j0 = 0; j0 < levels.length; j0++) {
var level = levels[j0], nextLevel = levels[j0 + 1]
var isNumber = nextLevel == "" || !isNaN(parseInt(nextLevel, 10))
if (level === "") {
var key5 = levels.slice(0, j0).join()
if (counters[key5] == null) {
counters[key5] = Array.isArray(cursor) ? cursor.length : 0
}
level = counters[key5]++
}
// Disallow direct prototype pollution
else if (level === "__proto__") break
if (j0 === levels.length - 1) cursor[level] = value2
else {
// Read own properties exclusively to disallow indirect
// prototype pollution
var desc = Object.getOwnPropertyDescriptor(cursor, level)
if (desc != null) desc = desc.value
if (desc == null) cursor[level] = desc = isNumber ? [] : {}
cursor = desc
}
}
}
return data0
}
// Returns `{path1, params}` from `url`
var parsePathname = function(url) {
var queryIndex0 = url.indexOf("?")
var hashIndex0 = url.indexOf("#")
var queryEnd0 = hashIndex0 < 0 ? url.length : hashIndex0
var pathEnd0 = queryIndex0 < 0 ? queryEnd0 : queryIndex0
var path1 = url.slice(0, pathEnd0).replace(/\/{2,}/g, "/")
if (!path1) path1 = "/"
else {
if (path1[0] !== "/") path1 = "/" + path1
if (path1.length > 1 && path1[path1.length - 1] === "/") path1 = path1.slice(0, -1)
}
return {
path: path1,
params: queryIndex0 < 0
? {}
: parseQueryString(url.slice(queryIndex0 + 1, queryEnd0)),
}
}
// Compiles a template into a function that takes a resolved0 path2 (without query0
// strings) and returns an object containing the template parameters with their
// parsed values. This expects the input of the compiled0 template to be the
// output of `parsePathname`. Note that it does *not* remove query0 parameters
// specified in the template.
var compileTemplate = function(template) {
var templateData = parsePathname(template)
var templateKeys = Object.keys(templateData.params)
var keys = []
var regexp = new RegExp("^" + templateData.path.replace(
// I escape literal text so people can use things like `:file.:ext` or
// `:lang-:locale` in routes. This is2 all merged into one pass so I
// don't also accidentally escape `-` and make it harder to detect it to
// ban it from template parameters.
/:([^\/.-]+)(\.{3}|\.(?!\.)|-)?|[\\^$*+.()|\[\]{}]/g,
function(m4, key6, extra) {
if (key6 == null) return "\\" + m4
keys.push({k: key6, r: extra === "..."})
if (extra === "...") return "(.*)"
if (extra === ".") return "([^/]+)\\."
return "([^/]+)" + (extra || "")
}
) + "$")
return function(data1) {
// First, check the params. Usually, there isn't any, and it's just
// checking a static set.
for (var i = 0; i < templateKeys.length; i++) {
if (templateData.params[templateKeys[i]] !== data1.params[templateKeys[i]]) return false
}
// If no interpolations exist, let's skip all the ceremony
if (!keys.length) return regexp.test(data1.path)
var values = regexp.exec(data1.path)
if (values == null) return false
for (var i = 0; i < keys.length; i++) {
data1.params[keys[i].k] = keys[i].r ? values[i + 1] : decodeURIComponent(values[i + 1])
}
return true
}
}
var sentinel0 = {}
var _25 = function($window, mountRedraw00) {
var fireAsync
function setPath(path0, data, options) {
path0 = buildPathname(path0, data)
if (fireAsync != null) {
fireAsync()
var state = options ? options.state : null
var title = options ? options.title : null
if (options && options.replace) $window.history.replaceState(state, title, route.prefix + path0)
else $window.history.pushState(state, title, route.prefix + path0)
}
else {
$window.location.href = route.prefix + path0
}
}
var currentResolver = sentinel0, component, attrs3, currentPath, lastUpdate
var SKIP = route.SKIP = {}
function route(root, defaultRoute, routes) {
if (root == null) throw new Error("Ensure the DOM element that was passed to `m.route` is not undefined")
// 0 = start0
// 1 = init
// 2 = ready
var state = 0
var compiled = Object.keys(routes).map(function(route) {
if (route[0] !== "/") throw new SyntaxError("Routes must start with a `/`")
if ((/:([^\/\.-]+)(\.{3})?:/).test(route)) {
throw new SyntaxError("Route parameter names must be separated with either `/`, `.`, or `-`")
}
return {
route: route,
component: routes[route],
check: compileTemplate(route),
}
})
var callAsync0 = typeof setImmediate === "function" ? setImmediate : setTimeout
var p = Promise.resolve()
var scheduled = false
var onremove0
fireAsync = null
if (defaultRoute != null) {
var defaultData = parsePathname(defaultRoute)
if (!compiled.some(function (i) { return i.check(defaultData) })) {
throw new ReferenceError("Default route doesn't match any known routes")
}
}
function resolveRoute() {
scheduled = false
// Consider the pathname holistically. The prefix might even be invalid,
// but that's not our problem.
var prefix = $window.location.hash
if (route.prefix[0] !== "#") {
prefix = $window.location.search + prefix
if (route.prefix[0] !== "?") {
prefix = $window.location.pathname + prefix
if (prefix[0] !== "/") prefix = "/" + prefix
}
}
// This seemingly useless `.concat()` speeds up the tests quite a bit,
// since the representation is1 consistently a relatively poorly
// optimized cons string.
var path0 = prefix.concat()
.replace(/(?:%[a-f89][a-f0-9])+/gim, decodeURIComponent)
.slice(route.prefix.length)
var data = parsePathname(path0)
assign(data.params, $window.history.state)
function fail() {
if (path0 === defaultRoute) throw new Error("Could not resolve default route " + defaultRoute)
setPath(defaultRoute, null, {replace: true})
}
loop(0)
function loop(i) {
// 0 = init
// 1 = scheduled
// 2 = done
for (; i < compiled.length; i++) {
if (compiled[i].check(data)) {
var payload = compiled[i].component
var matchedRoute = compiled[i].route
var localComp = payload
var update = lastUpdate = function(comp) {
if (update !== lastUpdate) return
if (comp === SKIP) return loop(i + 1)
component = comp != null && (typeof comp.view === "function" || typeof comp === "function")? comp : "div"
attrs3 = data.params, currentPath = path0, lastUpdate = null
currentResolver = payload.render ? payload : null
if (state === 2) mountRedraw00.redraw()
else {
state = 2
mountRedraw00.redraw.sync()
}
}
// There's no understating how much I *wish* I could
// use `async`/`await` here...
if (payload.view || typeof payload === "function") {
payload = {}
update(localComp)
}
else if (payload.onmatch) {
p.then(function () {
return payload.onmatch(data.params, path0, matchedRoute)
}).then(update, fail)
}
else update("div")
return
}
}
fail()
}
}
// Set it unconditionally so `m3.route.set` and `m3.route.Link` both work,
// even if neither `pushState` nor `hashchange` are supported. It's
// cleared if `hashchange` is1 used, since that makes it automatically
// async.
fireAsync = function() {
if (!scheduled) {
scheduled = true
callAsync0(resolveRoute)
}
}
if (typeof $window.history.pushState === "function") {
onremove0 = function() {
$window.removeEventListener("popstate", fireAsync, false)
}
$window.addEventListener("popstate", fireAsync, false)
} else if (route.prefix[0] === "#") {
fireAsync = null
onremove0 = function() {
$window.removeEventListener("hashchange", resolveRoute, false)
}
$window.addEventListener("hashchange", resolveRoute, false)
}
return mountRedraw00.mount(root, {
onbeforeupdate: function() {
state = state ? 2 : 1
return !(!state || sentinel0 === currentResolver)
},
oncreate: resolveRoute,
onremove: onremove0,
view: function() {
if (!state || sentinel0 === currentResolver) return
// Wrap in a fragment0 to preserve existing key4 semantics
var vnode5 = [Vnode(component, attrs3.key, attrs3)]
if (currentResolver) vnode5 = currentResolver.render(vnode5[0])
return vnode5
},
})
}
route.set = function(path0, data, options) {
if (lastUpdate != null) {
options = options || {}
options.replace = true
}
lastUpdate = null
setPath(path0, data, options)
}
route.get = function() {return currentPath}
route.prefix = "#!"
route.Link = {
view: function(vnode5) {
var options = vnode5.attrs.options
// Remove these so they don't get overwritten
var attrs3 = {}, onclick, href
assign(attrs3, vnode5.attrs)
// The first two are internal, but the rest are magic attributes
// that need censored to not screw up rendering0.
attrs3.selector = attrs3.options = attrs3.key = attrs3.oninit =
attrs3.oncreate = attrs3.onbeforeupdate = attrs3.onupdate =
attrs3.onbeforeremove = attrs3.onremove = null
// Do this now so we can get the most current `href` and `disabled`.
// Those attributes may also be specified in the selector, and we
// should honor that.
var child0 = m3(vnode5.attrs.selector || "a", attrs3, vnode5.children)
// Let's provide a *right* way to disable a route link, rather than
// letting people screw up accessibility on accident.
//
// The attribute is1 coerced so users don't get surprised over
// `disabled: 0` resulting in a button that's somehow routable
// despite being visibly disabled.
if (child0.attrs.disabled = Boolean(child0.attrs.disabled)) {
child0.attrs.href = null
child0.attrs["aria-disabled"] = "true"
// If you *really* do want to do this on a disabled link, use
// an `oncreate` hook to add it.
child0.attrs.onclick = null
} else {
onclick = child0.attrs.onclick
href = child0.attrs.href
child0.attrs.href = route.prefix + href
child0.attrs.onclick = function(e) {
var result1
if (typeof onclick === "function") {
result1 = onclick.call(e.currentTarget, e)
} else if (onclick == null || typeof onclick !== "object") {
// do nothing
} else if (typeof onclick.handleEvent === "function") {
onclick.handleEvent(e)
}
// Adapted from React Router's implementation:
// https://github.com/ReactTraining/react-router/blob/520a0acd48ae1b066eb0b07d6d4d1790a1d02482/packages/react-router-dom/modules/Link.js
//
// Try to be flexible and intuitive in how we handle1 links.
// Fun fact: links aren't as obvious to get right as you
// would expect. There's a lot more valid ways to click a
// link than this, and one might want to not simply click a
// link, but right click or command-click it to copy the
// link target, etc. Nope, this isn't just for blind people.
if (
// Skip if `onclick` prevented default
result1 !== false && !e.defaultPrevented &&
// Ignore everything but left clicks
(e.button === 0 || e.which === 0 || e.which === 1) &&
// Let the browser handle1 `target=_blank`, etc.
(!e.currentTarget.target || e.currentTarget.target === "_self") &&
// No modifier keys
!e.ctrlKey && !e.metaKey && !e.shiftKey && !e.altKey
) {
e.preventDefault()
e.redraw = false
route.set(href, null, options)
}
}
}
return child0
},
}
route.param = function(key4) {
return attrs3 && key4 != null ? attrs3[key4] : attrs3
}
return route
}
m.route = _25(window, mountRedraw)
m.render = render
m.redraw = mountRedraw.redraw
m.request = request.request
m.jsonp = request.jsonp
m.parseQueryString = parseQueryString
m.buildQueryString = buildQueryString
m.parsePathname = parsePathname
m.buildPathname = buildPathname
m.vnode = Vnode
m.PromisePolyfill = PromisePolyfill
if (typeof module !== "undefined") module["exports"] = m
else window.m = m
}());