434 lines
No EOL
14 KiB
JavaScript
434 lines
No EOL
14 KiB
JavaScript
new function(window) {
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var selectorCache = {}
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var type = {}.toString
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var parser = /(?:(^|#|\.)([^#\.\[\]]+))|(\[.+?\])/g, attrParser = /\[(.+?)(?:=("|'|)(.+?)\2)?\]/
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Mithril = m = function() {
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var args = arguments
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var hasAttrs = type.call(args[1]) == "[object Object]"
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var attrs = hasAttrs ? args[1] : {}
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var classAttrName = "class" in attrs ? "class" : "className"
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var cell = selectorCache[args[0]]
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if (cell === undefined) {
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selectorCache[args[0]] = cell = {tag: "div", attrs: {}}
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var match, classes = []
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while (match = parser.exec(args[0])) {
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if (match[1] == "") cell.tag = match[2]
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else if (match[1] == "#") cell.attrs.id = match[2]
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else if (match[1] == ".") classes.push(match[2])
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else if (match[3][0] == "[") {
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var pair = attrParser.exec(match[3])
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cell.attrs[pair[1]] = pair[3] || true
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}
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}
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if (classes.length > 0) cell.attrs[classAttrName] = classes.join(" ")
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}
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cell = clone(cell)
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cell.attrs = clone(cell.attrs)
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cell.children = hasAttrs ? args[2] : args[1]
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for (var attrName in attrs) {
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if (attrName == classAttrName) cell.attrs[attrName] = (cell.attrs[attrName] || "") + " " + attrs[attrName]
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else cell.attrs[attrName] = attrs[attrName]
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}
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return cell
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}
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function build(parent, data, cached) {
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if (data === null || data === undefined) return
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var cachedType = type.call(cached), dataType = type.call(data)
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if (cachedType != dataType) {
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if (cached !== null && cached !== undefined) clear(cached.nodes)
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cached = new data.constructor
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cached.nodes = []
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}
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if (dataType == "[object Array]") {
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var nodes = [], intact = cached.length === data.length
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for (var i = 0; i < data.length; i++) {
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var item = build(parent, data[i], cached[i])
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if (item === undefined) continue
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if (!item.nodes.intact) intact = false
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cached[i] = item
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}
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if (!intact) {
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for (var i = 0; i < data.length; i++) if (cached[i] !== undefined) nodes = nodes.concat(cached[i].nodes)
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for (var i = nodes.length, node; node = cached.nodes[i]; i++) if (node.parentNode !== null) node.parentNode.removeChild(node)
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for (var i = cached.nodes.length, node; node = nodes[i]; i++) if (node.parentNode === null) parent.appendChild(node)
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cached.length = data.length
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cached.nodes = nodes
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}
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}
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else if (dataType == "[object Object]") {
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if (typeof data.tag != "string") return
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if (data.tag != cached.tag || Object.keys(data.attrs).join() != Object.keys(cached.attrs).join()) clear(cached.nodes)
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var node, isNew = cached.nodes.length === 0
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if (isNew) {
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node = window.document.createElement(data.tag)
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cached = {tag: data.tag, attrs: setAttributes(node, data.attrs, {}), children: build(node, data.children, cached.children), nodes: [node]}
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parent.appendChild(node)
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}
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else {
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node = cached.nodes[0]
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setAttributes(node, data.attrs, cached.attrs)
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cached.children = build(node, data.children, cached.children)
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cached.nodes.intact = true
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if (node.parentNode !== parent) parent.appendChild(node)
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}
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if (type.call(data.attrs["config"]) == "[object Function]") data.attrs["config"](node, !isNew)
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}
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else {
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var node
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if (cached.nodes.length === 0) {
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if (data.$trusted) {
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var lastChild = parent.lastChild
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parent.insertAdjacentHTML("beforeend", data)
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node = lastChild ? lastChild.nextSibling : parent.firstChild
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}
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else {
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node = window.document.createTextNode(data)
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parent.appendChild(node)
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}
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cached = "string number boolean".indexOf(typeof data) > -1 ? new data.constructor(data) : data
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cached.nodes = [node]
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}
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else if (cached.valueOf() !== data.valueOf()) {
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if (data.$trusted) {
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var current = cached.nodes[0], nodes = [current]
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if (current) {
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while (current = current.nextSibling) nodes.push(current)
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clear(nodes)
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var lastChild = parent.lastChild
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parent.insertAdjacentHTML("beforeend", data)
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node = lastChild ? lastChild.nextSibling : parent.firstChild
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}
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else parent.innerHTML = data
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}
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else {
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node = cached.nodes[0]
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parent.appendChild(node)
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node.nodeValue = data
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}
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cached = new data.constructor(data)
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cached.nodes = [node]
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}
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else cached.nodes.intact = true
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}
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return cached
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}
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function setAttributes(node, dataAttrs, cachedAttrs) {
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for (var attrName in dataAttrs) {
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var dataAttr = dataAttrs[attrName]
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var cachedAttr = cachedAttrs[attrName]
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if (!(attrName in cachedAttrs) || (cachedAttr !== dataAttr) || node === window.document.activeElement) {
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if (attrName === "config") continue
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else if (typeof dataAttr == "function" && attrName.indexOf("on") == 0) {
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if (String(dataAttr) !== String(cachedAttr)) node[attrName] = autoredraw(dataAttr, node)
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}
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else if (attrName === "style") {
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for (var rule in dataAttr) {
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if (cachedAttr === undefined || cachedAttr[rule] !== dataAttr[rule]) node.style[rule] = dataAttr[rule]
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}
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}
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else if (attrName in node) node[attrName] = dataAttr
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else node.setAttribute(attrName, dataAttr)
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cachedAttrs[attrName] = dataAttr
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}
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}
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return cachedAttrs
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}
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function clear(nodes) {
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for (var i = 0; i < nodes.length; i++) nodes[i].parentNode.removeChild(nodes[i])
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nodes.length = 0
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}
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function clone(object) {
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var result = {}
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for (var prop in object) result[prop] = object[prop]
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return result
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}
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function autoredraw(callback, object) {
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return function(e) {
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m.startComputation()
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var output = callback.call(object, e)
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m.endComputation()
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return output
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}
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}
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var html
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var documentNode = {
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insertAdjacentHTML: function(_, data) {
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window.document.write(data)
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window.document.close()
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},
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appendChild: function(node) {
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if (html === undefined) html = window.document.createElement("html")
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if (node.nodeName == "HTML") html = node
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else html.appendChild(node)
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if (window.document.documentElement !== html) {
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window.document.replaceChild(html, window.document.documentElement)
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}
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}
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}
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var nodeCache = [], cellCache = {}
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m.render = function(root, cell) {
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var index = nodeCache.indexOf(root)
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var id = index < 0 ? nodeCache.push(root) - 1 : index
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var node = root == window.document || root == window.document.documentElement ? documentNode : root
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cellCache[id] = build(node, cell, cellCache[id])
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}
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m.trust = function(value) {
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value = new String(value)
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value.$trusted = true
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return value
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}
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var currentRoot, currentModule = {view: function() {}}, currentController = {}, now = 0, lastRedraw = 0, lastRedrawId = 0
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m.module = function(root, module) {
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m.startComputation()
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currentRoot = root
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currentModule = module
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currentController = new module.controller
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m.endComputation()
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}
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m.redraw = function() {
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m.render(currentRoot, currentModule.view(currentController))
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lastRedraw = now
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}
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function redraw() {
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now = window.performance && window.performance.now ? window.performance.now() : new window.Date().getTime()
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if (now - lastRedraw > 16) m.redraw()
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else {
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var cancel = window.cancelAnimationFrame || window.clearTimeout
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var defer = window.requestAnimationFrame || window.setTimeout
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cancel(lastRedrawId)
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lastRedrawId = defer(m.redraw, 0)
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}
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}
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var pendingRequests = 0, computePostRedrawHook = null
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m.startComputation = function() {pendingRequests++}
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m.endComputation = function() {
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pendingRequests = Math.max(pendingRequests - 1, 0)
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if (pendingRequests == 0) {
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redraw()
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if (computePostRedrawHook) {
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computePostRedrawHook()
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computePostRedrawHook = null
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}
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}
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}
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m.withAttr = function(prop, withAttrCallback) {
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return function(e) {withAttrCallback(prop in e.currentTarget ? e.currentTarget[prop] : e.currentTarget.getAttribute(prop))}
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}
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//routing
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var modes = {pathname: "", hash: "#", search: "?"}
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var redirect = function() {}, routeParams = {}
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m.route = function() {
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if (arguments.length == 3) {
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var root = arguments[0], defaultRoute = arguments[1], router = arguments[2]
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redirect = function(source) {
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var path = source.slice(modes[m.route.mode].length)
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if (!routeByValue(root, router, path)) {
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m.route(defaultRoute, true)
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}
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}
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var listener = m.route.mode == "hash" ? "onhashchange" : "onpopstate"
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window[listener] = function() {
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redirect(window.location[m.route.mode])
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}
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computePostRedrawHook = scrollToHash
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window[listener]()
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}
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else if (arguments[0].addEventListener) {
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var element = arguments[0]
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var isInitialized = arguments[1]
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if (!isInitialized) {
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element.removeEventListener("click", routeUnobtrusive)
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element.addEventListener("click", routeUnobtrusive)
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}
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}
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else if (typeof arguments[0] == "string") {
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var route = arguments[0]
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var shouldReplaceHistoryEntry = arguments[1] === true
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if (window.history.pushState) {
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computePostRedrawHook = function() {
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window.history[shouldReplaceHistoryEntry ? "replaceState" : "pushState"](null, window.document.title, modes[m.route.mode] + route)
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scrollToHash()
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}
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redirect(modes[m.route.mode] + route)
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}
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else window.location[m.route.mode] = route
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}
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}
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m.route.param = function(key) {return routeParams[key]}
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m.route.mode = "search"
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function routeByValue(root, router, path) {
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routeParams = {}
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for (var route in router) {
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if (route == path) return !void m.module(root, router[route])
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var matcher = new RegExp("^" + route.replace(/:[^\/]+/g, "([^\\/]+)") + "$")
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if (matcher.test(path)) {
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return !void path.replace(matcher, function() {
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var keys = route.match(/:[^\/]+/g)
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var values = [].slice.call(arguments, 1, -2)
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for (var i = 0; i < keys.length; i++) routeParams[keys[i].slice(1)] = values[i]
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m.module(root, router[route])
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})
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}
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}
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}
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function routeUnobtrusive(e) {
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e.preventDefault()
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m.route(e.currentTarget.getAttribute("href"))
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}
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function scrollToHash() {
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if (m.route.mode != "hash" && window.location.hash) window.location.hash = window.location.hash
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}
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//model
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m.prop = function(store) {
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return function() {
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if (arguments.length) store = arguments[0]
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return store
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}
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}
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m.deferred = function() {
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var resolvers = [], rejecters = []
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var object = {
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resolve: function(value) {
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for (var i = 0; i < resolvers.length; i++) resolvers[i](value)
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},
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reject: function(value) {
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for (var i = 0; i < rejecters.length; i++) rejecters[i](value)
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},
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promise: m.prop()
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}
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object.promise.resolvers = resolvers
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object.promise.then = function(success, error) {
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var next = m.deferred()
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if (!success) success = identity
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if (!error) error = identity
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function push(list, method, callback) {
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list.push(function(value) {
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try {
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var result = callback(value)
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if (result && typeof result.then == "function") result.then(next[method], error)
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else next[method](result !== undefined ? result : value)
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}
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catch (e) {
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if (e instanceof Error && e.constructor !== Error) throw e
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else next.reject(e)
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}
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})
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}
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push(resolvers, "resolve", success)
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push(rejecters, "reject", error)
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return next.promise
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}
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return object
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}
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m.sync = function(args) {
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var method = "resolve"
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function synchronizer(resolved) {
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return function(value) {
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results.push(value)
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if (!resolved) method = "reject"
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if (results.length == args.length) {
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deferred.promise(results)
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deferred[method](results)
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}
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return value
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}
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}
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var deferred = m.deferred()
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var results = []
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for (var i = 0; i < args.length; i++) {
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args[i].then(synchronizer(true), synchronizer(false))
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}
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return deferred.promise
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}
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function identity(value) {return value}
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function ajax(options) {
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var xhr = window.XDomainRequest ? new window.XDomainRequest : new window.XMLHttpRequest
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xhr.open(options.method, options.url, true, options.user, options.password)
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xhr.onload = typeof options.onload == "function" ? options.onload : function() {}
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xhr.onerror = typeof options.onerror == "function" ? options.onerror : function() {}
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if (typeof options.config == "function") options.config(xhr, options)
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xhr.send(options.data)
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return xhr
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}
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function querystring(object, prefix) {
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var str = []
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for(var prop in object) {
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var key = prefix ? prefix + "[" + prop + "]" : prop, value = object[prop]
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str.push(typeof value == "object" ? querystring(value, key) : encodeURIComponent(key) + "=" + encodeURIComponent(value))
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}
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return str.join("&")
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}
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function bindData(xhrOptions, data, serialize) {
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if (data && Object.keys(data).length > 0) {
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if (xhrOptions.method == "GET") {
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xhrOptions.url = xhrOptions.url + (xhrOptions.url.indexOf("?") < 0 ? "?" : "&") + querystring(data)
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}
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else xhrOptions.data = serialize(data)
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}
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return xhrOptions
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}
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function parameterizeUrl(url, data) {
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var tokens = url.match(/:\w+/g)
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if (tokens && data) {
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for (var i = 0; i < tokens.length; i++) {
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var key = tokens[i].slice(1)
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url = url.replace(tokens[i], data[key])
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delete data[key]
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}
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}
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return url
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}
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m.request = function(xhrOptions) {
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m.startComputation()
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var deferred = m.deferred()
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var serialize = xhrOptions.serialize || JSON.stringify
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var deserialize = xhrOptions.deserialize || JSON.parse
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xhrOptions.url = parameterizeUrl(xhrOptions.url, xhrOptions.data)
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xhrOptions = bindData(xhrOptions, xhrOptions.data, serialize)
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xhrOptions.onload = xhrOptions.onerror = function(e) {
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var unwrap = (e.type == "load" ? xhrOptions.unwrapSuccess : xhrOptions.unwrapError) || identity
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var response = unwrap(deserialize(e.target.responseText))
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if (response instanceof Array && xhrOptions.type) {
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for (var i = 0; i < response.length; i++) response[i] = new xhrOptions.type(response[i])
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}
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else if (xhrOptions.type) response = new xhrOptions.type(response)
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deferred.promise(response)
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deferred[e.type == "load" ? "resolve" : "reject"](response)
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m.endComputation()
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}
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ajax(xhrOptions)
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deferred.promise.then = propBinder(deferred.promise)
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return deferred.promise
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}
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function propBinder(promise) {
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var bind = promise.then
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return function(success, error) {
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var next = bind(function(value) {return next(success(value))}, function(value) {return next(error(value))})
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next.then = propBinder(next)
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return next
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}
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}
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if (typeof module != "undefined" && module !== null) module.exports = m
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if (typeof define == "function" && define.amd) define(function() {return m})
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//testing API
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m.deps = function(mock) {return window = mock}
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}(this) |