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-rw-r--r--js/lib/mithril.js674
-rw-r--r--js/lib/underscore.js1343
2 files changed, 2017 insertions, 0 deletions
diff --git a/js/lib/mithril.js b/js/lib/mithril.js
new file mode 100644
index 0000000..128d1d4
--- /dev/null
+++ b/js/lib/mithril.js
@@ -0,0 +1,674 @@
+Mithril = m = new function app(window) {
+ var type = {}.toString
+ var parser = /(?:(^|#|\.)([^#\.\[\]]+))|(\[.+?\])/g, attrParser = /\[(.+?)(?:=("|'|)(.*?)\2)?\]/
+
+ function m() {
+ var args = arguments
+ var hasAttrs = type.call(args[1]) == "[object Object]" && !("tag" in args[1]) && !("subtree" in args[1])
+ var attrs = hasAttrs ? args[1] : {}
+ var classAttrName = "class" in attrs ? "class" : "className"
+ var cell = {tag: "div", attrs: {}}
+ var match, classes = []
+ while (match = parser.exec(args[0])) {
+ if (match[1] == "") cell.tag = match[2]
+ else if (match[1] == "#") cell.attrs.id = match[2]
+ else if (match[1] == ".") classes.push(match[2])
+ else if (match[3][0] == "[") {
+ var pair = attrParser.exec(match[3])
+ cell.attrs[pair[1]] = pair[3] || (pair[2] ? "" :true)
+ }
+ }
+ if (classes.length > 0) cell.attrs[classAttrName] = classes.join(" ")
+
+ cell.children = hasAttrs ? args[2] : args[1]
+
+ for (var attrName in attrs) {
+ if (attrName == classAttrName) cell.attrs[attrName] = (cell.attrs[attrName] || "") + " " + attrs[attrName]
+ else cell.attrs[attrName] = attrs[attrName]
+ }
+ return cell
+ }
+ function build(parentElement, parentTag, parentCache, parentIndex, data, cached, shouldReattach, index, editable, namespace, configs) {
+ if (data === null || data === undefined) data = ""
+ if (data.subtree === "retain") return cached
+
+ var cachedType = type.call(cached), dataType = type.call(data)
+ if (cachedType != dataType) {
+ if (cached !== null && cached !== undefined) {
+ if (parentCache && parentCache.nodes) {
+ var offset = index - parentIndex
+ var end = offset + (dataType == "[object Array]" ? data : cached.nodes).length
+ clear(parentCache.nodes.slice(offset, end), parentCache.slice(offset, end))
+ }
+ else clear(cached.nodes, cached)
+ }
+ cached = new data.constructor
+ cached.nodes = []
+ }
+
+ if (dataType == "[object Array]") {
+ data = flatten(data)
+ var nodes = [], intact = cached.length === data.length, subArrayCount = 0
+
+ var DELETION = 1, INSERTION = 2 , MOVE = 3
+ var existing = {}, unkeyed = [], shouldMaintainIdentities = false
+ for (var i = 0; i < cached.length; i++) {
+ if (cached[i] && cached[i].attrs && cached[i].attrs.key !== undefined) {
+ shouldMaintainIdentities = true
+ existing[cached[i].attrs.key] = {action: DELETION, index: i}
+ }
+ }
+ if (shouldMaintainIdentities) {
+ for (var i = 0; i < data.length; i++) {
+ if (data[i] && data[i].attrs) {
+ if (data[i].attrs.key !== undefined) {
+ var key = data[i].attrs.key
+ if (!existing[key]) existing[key] = {action: INSERTION, index: i}
+ else existing[key] = {action: MOVE, index: i, from: existing[key].index, element: parentElement.childNodes[existing[key].index]}
+ }
+ else unkeyed.push({index: i, element: parentElement.childNodes[i]})
+ }
+ }
+ var actions = Object.keys(existing).map(function(key) {return existing[key]})
+ var changes = actions.sort(function(a, b) {return a.action - b.action || a.index - b.index})
+ var newCached = cached.slice()
+
+ for (var i = 0, change; change = changes[i]; i++) {
+ if (change.action == DELETION) {
+ clear(cached[change.index].nodes, cached[change.index])
+ newCached.splice(change.index, 1)
+ }
+ if (change.action == INSERTION) {
+ var dummy = window.document.createElement("div")
+ dummy.key = data[change.index].attrs.key
+ parentElement.insertBefore(dummy, parentElement.childNodes[change.index])
+ newCached.splice(change.index, 0, {attrs: {key: data[change.index].attrs.key}, nodes: [dummy]})
+ }
+
+ if (change.action == MOVE) {
+ if (parentElement.childNodes[change.index] !== change.element) {
+ parentElement.insertBefore(change.element, parentElement.childNodes[change.index])
+ }
+ newCached[change.index] = cached[change.from]
+ }
+ }
+ for (var i = 0; i < unkeyed.length; i++) {
+ var change = unkeyed[i]
+ parentElement.insertBefore(change.element, parentElement.childNodes[change.index])
+ newCached[change.index] = cached[change.index]
+ }
+ cached = newCached
+ cached.nodes = []
+ for (var i = 0, child; child = parentElement.childNodes[i]; i++) cached.nodes.push(child)
+ }
+
+ for (var i = 0, cacheCount = 0; i < data.length; i++) {
+ var item = build(parentElement, parentTag, cached, index, data[i], cached[cacheCount], shouldReattach, index + subArrayCount || subArrayCount, editable, namespace, configs)
+ if (item === undefined) continue
+ if (!item.nodes.intact) intact = false
+ var isArray = item instanceof Array
+ subArrayCount += isArray ? item.length : 1
+ cached[cacheCount++] = item
+ }
+ if (!intact) {
+ for (var i = 0; i < data.length; i++) {
+ if (cached[i] !== undefined) nodes = nodes.concat(cached[i].nodes)
+ }
+ for (var i = 0, node; node = cached.nodes[i]; i++) {
+ if (node.parentNode !== null && nodes.indexOf(node) < 0) node.parentNode.removeChild(node)
+ }
+ for (var i = cached.nodes.length, node; node = nodes[i]; i++) {
+ if (node.parentNode === null) parentElement.appendChild(node)
+ }
+ if (data.length < cached.length) cached.length = data.length
+ cached.nodes = nodes
+ }
+
+ }
+ else if (dataType == "[object Object]") {
+ if (data.tag != cached.tag || Object.keys(data.attrs).join() != Object.keys(cached.attrs).join() || data.attrs.id != cached.attrs.id) {
+ clear(cached.nodes)
+ if (cached.configContext && typeof cached.configContext.onunload == "function") cached.configContext.onunload()
+ }
+ if (typeof data.tag != "string") return
+
+ var node, isNew = cached.nodes.length === 0
+ if (data.attrs.xmlns) namespace = data.attrs.xmlns
+ else if (data.tag === "svg") namespace = "http://www.w3.org/2000/svg"
+ if (isNew) {
+ node = namespace === undefined ? window.document.createElement(data.tag) : window.document.createElementNS(namespace, data.tag)
+ cached = {
+ tag: data.tag,
+ //process children before attrs so that select.value works correctly
+ children: data.children !== undefined ? build(node, data.tag, undefined, undefined, data.children, cached.children, true, 0, data.attrs.contenteditable ? node : editable, namespace, configs) : undefined,
+ attrs: setAttributes(node, data.tag, data.attrs, {}, namespace),
+ nodes: [node]
+ }
+ parentElement.insertBefore(node, parentElement.childNodes[index] || null)
+ }
+ else {
+ node = cached.nodes[0]
+ setAttributes(node, data.tag, data.attrs, cached.attrs, namespace)
+ cached.children = build(node, data.tag, undefined, undefined, data.children, cached.children, false, 0, data.attrs.contenteditable ? node : editable, namespace, configs)
+ cached.nodes.intact = true
+ if (shouldReattach === true) parentElement.insertBefore(node, parentElement.childNodes[index] || null)
+ }
+ if (type.call(data.attrs["config"]) == "[object Function]") {
+ configs.push(data.attrs["config"].bind(window, node, !isNew, cached.configContext = cached.configContext || {}, cached))
+ }
+ }
+ else {
+ var nodes
+ if (cached.nodes.length === 0) {
+ if (data.$trusted) {
+ nodes = injectHTML(parentElement, index, data)
+ }
+ else {
+ nodes = [window.document.createTextNode(data)]
+ parentElement.insertBefore(nodes[0], parentElement.childNodes[index] || null)
+ }
+ cached = "string number boolean".indexOf(typeof data) > -1 ? new data.constructor(data) : data
+ cached.nodes = nodes
+ }
+ else if (cached.valueOf() !== data.valueOf() || shouldReattach === true) {
+ nodes = cached.nodes
+ if (!editable || editable !== window.document.activeElement) {
+ if (data.$trusted) {
+ clear(nodes, cached)
+ nodes = injectHTML(parentElement, index, data)
+ }
+ else {
+ if (parentTag === "textarea") parentElement.value = data
+ else if (editable) editable.innerHTML = data
+ else {
+ if (nodes[0].nodeType == 1 || nodes.length > 1) { //was a trusted string
+ clear(cached.nodes, cached)
+ nodes = [window.document.createTextNode(data)]
+ }
+ parentElement.insertBefore(nodes[0], parentElement.childNodes[index] || null)
+ nodes[0].nodeValue = data
+ }
+ }
+ }
+ cached = new data.constructor(data)
+ cached.nodes = nodes
+ }
+ else cached.nodes.intact = true
+ }
+
+ return cached
+ }
+ function setAttributes(node, tag, dataAttrs, cachedAttrs, namespace) {
+ var groups = {}
+ for (var attrName in dataAttrs) {
+ var dataAttr = dataAttrs[attrName]
+ var cachedAttr = cachedAttrs[attrName]
+ if (!(attrName in cachedAttrs) || (cachedAttr !== dataAttr) || node === window.document.activeElement) {
+ cachedAttrs[attrName] = dataAttr
+ if (attrName === "config") continue
+ else if (typeof dataAttr == "function" && attrName.indexOf("on") == 0) {
+ node[attrName] = autoredraw(dataAttr, node)
+ }
+ else if (attrName === "style" && typeof dataAttr == "object") {
+ for (var rule in dataAttr) {
+ if (cachedAttr === undefined || cachedAttr[rule] !== dataAttr[rule]) node.style[rule] = dataAttr[rule]
+ }
+ for (var rule in cachedAttr) {
+ if (!(rule in dataAttr)) node.style[rule] = ""
+ }
+ }
+ else if (namespace !== undefined) {
+ if (attrName === "href") node.setAttributeNS("http://www.w3.org/1999/xlink", "href", dataAttr)
+ else if (attrName === "className") node.setAttribute("class", dataAttr)
+ else node.setAttribute(attrName, dataAttr)
+ }
+ else if (attrName === "value" && tag === "input") {
+ if (node.value !== dataAttr) node.value = dataAttr
+ }
+ else if (attrName in node && !(attrName == "list" || attrName == "style")) {
+ node[attrName] = dataAttr
+ }
+ else node.setAttribute(attrName, dataAttr)
+ }
+ }
+ return cachedAttrs
+ }
+ function clear(nodes, cached) {
+ for (var i = nodes.length - 1; i > -1; i--) {
+ if (nodes[i] && nodes[i].parentNode) {
+ nodes[i].parentNode.removeChild(nodes[i])
+ cached = [].concat(cached)
+ if (cached[i]) unload(cached[i])
+ }
+ }
+ if (nodes.length != 0) nodes.length = 0
+ }
+ function unload(cached) {
+ if (cached.configContext && typeof cached.configContext.onunload == "function") cached.configContext.onunload()
+ if (cached.children) {
+ if (cached.children instanceof Array) for (var i = 0; i < cached.children.length; i++) unload(cached.children[i])
+ else if (cached.children.tag) unload(cached.children)
+ }
+ }
+ function injectHTML(parentElement, index, data) {
+ var nextSibling = parentElement.childNodes[index]
+ if (nextSibling) {
+ var isElement = nextSibling.nodeType != 1
+ var placeholder = window.document.createElement("span")
+ if (isElement) {
+ parentElement.insertBefore(placeholder, nextSibling)
+ placeholder.insertAdjacentHTML("beforebegin", data)
+ parentElement.removeChild(placeholder)
+ }
+ else nextSibling.insertAdjacentHTML("beforebegin", data)
+ }
+ else parentElement.insertAdjacentHTML("beforeend", data)
+ var nodes = []
+ while (parentElement.childNodes[index] !== nextSibling) {
+ nodes.push(parentElement.childNodes[index])
+ index++
+ }
+ return nodes
+ }
+ function flatten(data) {
+ var flattened = []
+ for (var i = 0; i < data.length; i++) {
+ var item = data[i]
+ if (item instanceof Array) flattened.push.apply(flattened, flatten(item))
+ else flattened.push(item)
+ }
+ return flattened
+ }
+ function autoredraw(callback, object, group) {
+ return function(e) {
+ e = e || event
+ m.startComputation()
+ try {return callback.call(object, e)}
+ finally {
+ if (!lastRedrawId) lastRedrawId = -1;
+ m.endComputation()
+ }
+ }
+ }
+
+ var html
+ var documentNode = {
+ insertAdjacentHTML: function(_, data) {
+ window.document.write(data)
+ window.document.close()
+ },
+ appendChild: function(node) {
+ if (html === undefined) html = window.document.createElement("html")
+ if (node.nodeName == "HTML") html = node
+ else html.appendChild(node)
+ if (window.document.documentElement && window.document.documentElement !== html) {
+ window.document.replaceChild(html, window.document.documentElement)
+ }
+ else window.document.appendChild(html)
+ },
+ insertBefore: function(node) {
+ this.appendChild(node)
+ },
+ childNodes: []
+ }
+ var nodeCache = [], cellCache = {}
+ m.render = function(root, cell) {
+ var configs = []
+ if (!root) throw new Error("Please ensure the DOM element exists before rendering a template into it.")
+ var id = getCellCacheKey(root)
+ var node = root == window.document || root == window.document.documentElement ? documentNode : root
+ if (cellCache[id] === undefined) clear(node.childNodes)
+ cellCache[id] = build(node, null, undefined, undefined, cell, cellCache[id], false, 0, null, undefined, configs)
+ for (var i = 0; i < configs.length; i++) configs[i]()
+ }
+ function getCellCacheKey(element) {
+ var index = nodeCache.indexOf(element)
+ return index < 0 ? nodeCache.push(element) - 1 : index
+ }
+
+ m.trust = function(value) {
+ value = new String(value)
+ value.$trusted = true
+ return value
+ }
+
+ var roots = [], modules = [], controllers = [], lastRedrawId = 0, computePostRedrawHook = null
+ m.module = function(root, module) {
+ var index = roots.indexOf(root)
+ if (index < 0) index = roots.length
+ var isPrevented = false
+ if (controllers[index] && typeof controllers[index].onunload == "function") {
+ var event = {
+ preventDefault: function() {isPrevented = true}
+ }
+ controllers[index].onunload(event)
+ }
+ if (!isPrevented) {
+ m.startComputation()
+ roots[index] = root
+ modules[index] = module
+ controllers[index] = new module.controller
+ m.endComputation()
+ }
+ }
+ m.redraw = function() {
+ var cancel = window.cancelAnimationFrame || window.clearTimeout
+ var defer = window.requestAnimationFrame || window.setTimeout
+ if (lastRedrawId) {
+ cancel(lastRedrawId)
+ lastRedrawId = defer(redraw, 0)
+ }
+ else {
+ redraw()
+ lastRedrawId = defer(function() {lastRedrawId = null}, 0)
+ }
+ }
+ function redraw() {
+ for (var i = 0; i < roots.length; i++) {
+ if (controllers[i]) m.render(roots[i], modules[i].view(controllers[i]))
+ }
+ if (computePostRedrawHook) {
+ computePostRedrawHook()
+ computePostRedrawHook = null
+ }
+ lastRedrawId = null
+ }
+
+ var pendingRequests = 0
+ m.startComputation = function() {pendingRequests++}
+ m.endComputation = function() {
+ pendingRequests = Math.max(pendingRequests - 1, 0)
+ if (pendingRequests == 0) m.redraw()
+ }
+
+ m.withAttr = function(prop, withAttrCallback) {
+ return function(e) {
+ e = e || event
+ withAttrCallback(prop in e.currentTarget ? e.currentTarget[prop] : e.currentTarget.getAttribute(prop))
+ }
+ }
+
+ //routing
+ var modes = {pathname: "", hash: "#", search: "?"}
+ var redirect = function() {}, routeParams = {}, currentRoute
+ m.route = function() {
+ if (arguments.length === 0) return currentRoute
+ else if (arguments.length === 3 && typeof arguments[1] == "string") {
+ var root = arguments[0], defaultRoute = arguments[1], router = arguments[2]
+ redirect = function(source) {
+ var path = currentRoute = normalizeRoute(source)
+ if (!routeByValue(root, router, path)) {
+ m.route(defaultRoute, true)
+ }
+ }
+ var listener = m.route.mode == "hash" ? "onhashchange" : "onpopstate"
+ window[listener] = function() {
+ if (currentRoute != normalizeRoute(window.location[m.route.mode])) {
+ redirect(window.location[m.route.mode])
+ }
+ }
+ computePostRedrawHook = setScroll
+ window[listener]()
+ }
+ else if (arguments[0].addEventListener) {
+ var element = arguments[0]
+ var isInitialized = arguments[1]
+ if (element.href.indexOf(modes[m.route.mode]) < 0) {
+ element.href = window.location.pathname + modes[m.route.mode] + element.pathname
+ }
+ if (!isInitialized) {
+ element.removeEventListener("click", routeUnobtrusive)
+ element.addEventListener("click", routeUnobtrusive)
+ }
+ }
+ else if (typeof arguments[0] == "string") {
+ currentRoute = arguments[0]
+ var querystring = typeof arguments[1] == "object" ? buildQueryString(arguments[1]) : null
+ if (querystring) currentRoute += (currentRoute.indexOf("?") === -1 ? "?" : "&") + querystring
+
+ var shouldReplaceHistoryEntry = (arguments.length == 3 ? arguments[2] : arguments[1]) === true
+
+ if (window.history.pushState) {
+ computePostRedrawHook = function() {
+ window.history[shouldReplaceHistoryEntry ? "replaceState" : "pushState"](null, window.document.title, modes[m.route.mode] + currentRoute)
+ setScroll()
+ }
+ redirect(modes[m.route.mode] + currentRoute)
+ }
+ else window.location[m.route.mode] = currentRoute
+ }
+ }
+ m.route.param = function(key) {return routeParams[key]}
+ m.route.mode = "search"
+ function normalizeRoute(route) {return route.slice(modes[m.route.mode].length)}
+ function routeByValue(root, router, path) {
+ routeParams = {}
+
+ var queryStart = path.indexOf("?")
+ if (queryStart !== -1) {
+ routeParams = parseQueryString(path.substr(queryStart + 1, path.length))
+ path = path.substr(0, queryStart)
+ }
+
+ for (var route in router) {
+ if (route == path) {
+ reset(root)
+ m.module(root, router[route])
+ return true
+ }
+
+ var matcher = new RegExp("^" + route.replace(/:[^\/]+?\.{3}/g, "(.*?)").replace(/:[^\/]+/g, "([^\\/]+)") + "\/?$")
+
+ if (matcher.test(path)) {
+ reset(root)
+ path.replace(matcher, function() {
+ var keys = route.match(/:[^\/]+/g) || []
+ var values = [].slice.call(arguments, 1, -2)
+ for (var i = 0; i < keys.length; i++) routeParams[keys[i].replace(/:|\./g, "")] = decodeSpace(values[i])
+ m.module(root, router[route])
+ })
+ return true
+ }
+ }
+ }
+ function reset(root) {
+ var cacheKey = getCellCacheKey(root)
+ clear(root.childNodes, cellCache[cacheKey])
+ cellCache[cacheKey] = undefined
+ }
+ function routeUnobtrusive(e) {
+ e = e || event
+ if (e.ctrlKey || e.metaKey || e.which == 2) return
+ e.preventDefault()
+ m.route(e.currentTarget[m.route.mode].slice(modes[m.route.mode].length))
+ }
+ function setScroll() {
+ if (m.route.mode != "hash" && window.location.hash) window.location.hash = window.location.hash
+ else window.scrollTo(0, 0)
+ }
+ function buildQueryString(object, prefix) {
+ var str = []
+ for(var prop in object) {
+ var key = prefix ? prefix + "[" + prop + "]" : prop, value = object[prop]
+ str.push(typeof value == "object" ? buildQueryString(value, key) : encodeURIComponent(key) + "=" + encodeURIComponent(value))
+ }
+ return str.join("&")
+ }
+ function parseQueryString(str) {
+ var pairs = str.split("&"), params = {}
+ for (var i = 0; i < pairs.length; i++) {
+ var pair = pairs[i].split("=")
+ params[decodeSpace(pair[0])] = pair[1] ? decodeSpace(pair[1]) : (pair.length === 1 ? true : "")
+ }
+ return params
+ }
+ function decodeSpace(string) {
+ return decodeURIComponent(string.replace(/\+/g, " "))
+ }
+
+ //model
+ m.prop = function(store) {
+ var prop = function() {
+ if (arguments.length) store = arguments[0]
+ return store
+ }
+ prop.toJSON = function() {
+ return store
+ }
+ return prop
+ }
+
+ var none = {}
+ m.deferred = function() {
+ var resolvers = [], rejecters = [], resolved = none, rejected = none, promise = m.prop()
+ var object = {
+ resolve: function(value) {
+ if (resolved === none) promise(resolved = value)
+ for (var i = 0; i < resolvers.length; i++) resolvers[i](value)
+ resolvers.length = rejecters.length = 0
+ },
+ reject: function(value) {
+ if (rejected === none) rejected = value
+ for (var i = 0; i < rejecters.length; i++) rejecters[i](value)
+ resolvers.length = rejecters.length = 0
+ },
+ promise: promise
+ }
+ object.promise.resolvers = resolvers
+ object.promise.then = function(success, error) {
+ var next = m.deferred()
+ if (!success) success = identity
+ if (!error) error = identity
+ function callback(method, callback) {
+ return function(value) {
+ try {
+ var result = callback(value)
+ if (result && typeof result.then == "function") result.then(next[method], error)
+ else next[method](result !== undefined ? result : value)
+ }
+ catch (e) {
+ if (e instanceof Error && e.constructor !== Error) throw e
+ else next.reject(e)
+ }
+ }
+ }
+ if (resolved !== none) callback("resolve", success)(resolved)
+ else if (rejected !== none) callback("reject", error)(rejected)
+ else {
+ resolvers.push(callback("resolve", success))
+ rejecters.push(callback("reject", error))
+ }
+ return next.promise
+ }
+ return object
+ }
+ m.sync = function(args) {
+ var method = "resolve"
+ function synchronizer(pos, resolved) {
+ return function(value) {
+ results[pos] = value
+ if (!resolved) method = "reject"
+ if (--outstanding == 0) {
+ deferred.promise(results)
+ deferred[method](results)
+ }
+ return value
+ }
+ }
+
+ var deferred = m.deferred()
+ var outstanding = args.length
+ var results = new Array(outstanding)
+ for (var i = 0; i < args.length; i++) {
+ args[i].then(synchronizer(i, true), synchronizer(i, false))
+ }
+ return deferred.promise
+ }
+ function identity(value) {return value}
+
+ function ajax(options) {
+ var xhr = new window.XMLHttpRequest
+ xhr.open(options.method, options.url, true, options.user, options.password)
+ xhr.onreadystatechange = function() {
+ if (xhr.readyState === 4) {
+ if (xhr.status >= 200 && xhr.status < 300) options.onload({type: "load", target: xhr})
+ else options.onerror({type: "error", target: xhr})
+ }
+ }
+ if (options.serialize == JSON.stringify && options.method != "GET") {
+ xhr.setRequestHeader("Content-Type", "application/json; charset=utf-8");
+ }
+ if (typeof options.config == "function") {
+ var maybeXhr = options.config(xhr, options)
+ if (maybeXhr !== undefined) xhr = maybeXhr
+ }
+ xhr.send(options.method == "GET" ? "" : options.data)
+ return xhr
+ }
+ function bindData(xhrOptions, data, serialize) {
+ if (data && Object.keys(data).length > 0) {
+ if (xhrOptions.method == "GET") {
+ xhrOptions.url = xhrOptions.url + (xhrOptions.url.indexOf("?") < 0 ? "?" : "&") + buildQueryString(data)
+ }
+ else xhrOptions.data = serialize(data)
+ }
+ return xhrOptions
+ }
+ function parameterizeUrl(url, data) {
+ var tokens = url.match(/:[a-z]\w+/gi)
+ if (tokens && data) {
+ for (var i = 0; i < tokens.length; i++) {
+ var key = tokens[i].slice(1)
+ url = url.replace(tokens[i], data[key])
+ delete data[key]
+ }
+ }
+ return url
+ }
+
+ m.request = function(xhrOptions) {
+ if (xhrOptions.background !== true) m.startComputation()
+ var deferred = m.deferred()
+ var serialize = xhrOptions.serialize = xhrOptions.serialize || JSON.stringify
+ var deserialize = xhrOptions.deserialize = xhrOptions.deserialize || JSON.parse
+ var extract = xhrOptions.extract || function(xhr) {
+ return xhr.responseText.length === 0 && deserialize === JSON.parse ? null : xhr.responseText
+ }
+ xhrOptions.url = parameterizeUrl(xhrOptions.url, xhrOptions.data)
+ xhrOptions = bindData(xhrOptions, xhrOptions.data, serialize)
+ xhrOptions.onload = xhrOptions.onerror = function(e) {
+ try {
+ e = e || event
+ var unwrap = (e.type == "load" ? xhrOptions.unwrapSuccess : xhrOptions.unwrapError) || identity
+ var response = unwrap(deserialize(extract(e.target, xhrOptions)))
+ if (e.type == "load") {
+ if (response instanceof Array && xhrOptions.type) {
+ for (var i = 0; i < response.length; i++) response[i] = new xhrOptions.type(response[i])
+ }
+ else if (xhrOptions.type) response = new xhrOptions.type(response)
+ }
+ deferred[e.type == "load" ? "resolve" : "reject"](response)
+ }
+ catch (e) {
+ if (e instanceof SyntaxError) throw new SyntaxError("Could not parse HTTP response. See http://lhorie.github.io/mithril/mithril.request.html#using-variable-data-formats")
+ else if (e instanceof Error && e.constructor !== Error) throw e
+ else deferred.reject(e)
+ }
+ if (xhrOptions.background !== true) m.endComputation()
+ }
+ ajax(xhrOptions)
+ return deferred.promise
+ }
+
+ //testing API
+ m.deps = function(mock) {return window = mock}
+ //for internal testing only, do not use `m.deps.factory`
+ m.deps.factory = app
+
+ return m
+}(typeof window != "undefined" ? window : {})
+
+if (typeof module != "undefined" && module !== null) module.exports = m
+if (typeof define == "function" && define.amd) define(function() {return m})
+
+;;;
diff --git a/js/lib/underscore.js b/js/lib/underscore.js
new file mode 100644
index 0000000..9a4cabe
--- /dev/null
+++ b/js/lib/underscore.js
@@ -0,0 +1,1343 @@
+// Underscore.js 1.6.0
+// http://underscorejs.org
+// (c) 2009-2014 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+// Underscore may be freely distributed under the MIT license.
+
+(function() {
+
+ // Baseline setup
+ // --------------
+
+ // Establish the root object, `window` in the browser, or `exports` on the server.
+ var root = this;
+
+ // Save the previous value of the `_` variable.
+ var previousUnderscore = root._;
+
+ // Establish the object that gets returned to break out of a loop iteration.
+ var breaker = {};
+
+ // Save bytes in the minified (but not gzipped) version:
+ var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
+
+ // Create quick reference variables for speed access to core prototypes.
+ var
+ push = ArrayProto.push,
+ slice = ArrayProto.slice,
+ concat = ArrayProto.concat,
+ toString = ObjProto.toString,
+ hasOwnProperty = ObjProto.hasOwnProperty;
+
+ // All **ECMAScript 5** native function implementations that we hope to use
+ // are declared here.
+ var
+ nativeForEach = ArrayProto.forEach,
+ nativeMap = ArrayProto.map,
+ nativeReduce = ArrayProto.reduce,
+ nativeReduceRight = ArrayProto.reduceRight,
+ nativeFilter = ArrayProto.filter,
+ nativeEvery = ArrayProto.every,
+ nativeSome = ArrayProto.some,
+ nativeIndexOf = ArrayProto.indexOf,
+ nativeLastIndexOf = ArrayProto.lastIndexOf,
+ nativeIsArray = Array.isArray,
+ nativeKeys = Object.keys,
+ nativeBind = FuncProto.bind;
+
+ // Create a safe reference to the Underscore object for use below.
+ var _ = function(obj) {
+ if (obj instanceof _) return obj;
+ if (!(this instanceof _)) return new _(obj);
+ this._wrapped = obj;
+ };
+
+ // Export the Underscore object for **Node.js**, with
+ // backwards-compatibility for the old `require()` API. If we're in
+ // the browser, add `_` as a global object via a string identifier,
+ // for Closure Compiler "advanced" mode.
+ if (typeof exports !== 'undefined') {
+ if (typeof module !== 'undefined' && module.exports) {
+ exports = module.exports = _;
+ }
+ exports._ = _;
+ } else {
+ root._ = _;
+ }
+
+ // Current version.
+ _.VERSION = '1.6.0';
+
+ // Collection Functions
+ // --------------------
+
+ // The cornerstone, an `each` implementation, aka `forEach`.
+ // Handles objects with the built-in `forEach`, arrays, and raw objects.
+ // Delegates to **ECMAScript 5**'s native `forEach` if available.
+ var each = _.each = _.forEach = function(obj, iterator, context) {
+ if (obj == null) return obj;
+ if (nativeForEach && obj.forEach === nativeForEach) {
+ obj.forEach(iterator, context);
+ } else if (obj.length === +obj.length) {
+ for (var i = 0, length = obj.length; i < length; i++) {
+ if (iterator.call(context, obj[i], i, obj) === breaker) return;
+ }
+ } else {
+ var keys = _.keys(obj);
+ for (var i = 0, length = keys.length; i < length; i++) {
+ if (iterator.call(context, obj[keys[i]], keys[i], obj) === breaker) return;
+ }
+ }
+ return obj;
+ };
+
+ // Return the results of applying the iterator to each element.
+ // Delegates to **ECMAScript 5**'s native `map` if available.
+ _.map = _.collect = function(obj, iterator, context) {
+ var results = [];
+ if (obj == null) return results;
+ if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
+ each(obj, function(value, index, list) {
+ results.push(iterator.call(context, value, index, list));
+ });
+ return results;
+ };
+
+ var reduceError = 'Reduce of empty array with no initial value';
+
+ // **Reduce** builds up a single result from a list of values, aka `inject`,
+ // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
+ _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
+ var initial = arguments.length > 2;
+ if (obj == null) obj = [];
+ if (nativeReduce && obj.reduce === nativeReduce) {
+ if (context) iterator = _.bind(iterator, context);
+ return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
+ }
+ each(obj, function(value, index, list) {
+ if (!initial) {
+ memo = value;
+ initial = true;
+ } else {
+ memo = iterator.call(context, memo, value, index, list);
+ }
+ });
+ if (!initial) throw new TypeError(reduceError);
+ return memo;
+ };
+
+ // The right-associative version of reduce, also known as `foldr`.
+ // Delegates to **ECMAScript 5**'s native `reduceRight` if available.
+ _.reduceRight = _.foldr = function(obj, iterator, memo, context) {
+ var initial = arguments.length > 2;
+ if (obj == null) obj = [];
+ if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
+ if (context) iterator = _.bind(iterator, context);
+ return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
+ }
+ var length = obj.length;
+ if (length !== +length) {
+ var keys = _.keys(obj);
+ length = keys.length;
+ }
+ each(obj, function(value, index, list) {
+ index = keys ? keys[--length] : --length;
+ if (!initial) {
+ memo = obj[index];
+ initial = true;
+ } else {
+ memo = iterator.call(context, memo, obj[index], index, list);
+ }
+ });
+ if (!initial) throw new TypeError(reduceError);
+ return memo;
+ };
+
+ // Return the first value which passes a truth test. Aliased as `detect`.
+ _.find = _.detect = function(obj, predicate, context) {
+ var result;
+ any(obj, function(value, index, list) {
+ if (predicate.call(context, value, index, list)) {
+ result = value;
+ return true;
+ }
+ });
+ return result;
+ };
+
+ // Return all the elements that pass a truth test.
+ // Delegates to **ECMAScript 5**'s native `filter` if available.
+ // Aliased as `select`.
+ _.filter = _.select = function(obj, predicate, context) {
+ var results = [];
+ if (obj == null) return results;
+ if (nativeFilter && obj.filter === nativeFilter) return obj.filter(predicate, context);
+ each(obj, function(value, index, list) {
+ if (predicate.call(context, value, index, list)) results.push(value);
+ });
+ return results;
+ };
+
+ // Return all the elements for which a truth test fails.
+ _.reject = function(obj, predicate, context) {
+ return _.filter(obj, function(value, index, list) {
+ return !predicate.call(context, value, index, list);
+ }, context);
+ };
+
+ // Determine whether all of the elements match a truth test.
+ // Delegates to **ECMAScript 5**'s native `every` if available.
+ // Aliased as `all`.
+ _.every = _.all = function(obj, predicate, context) {
+ predicate || (predicate = _.identity);
+ var result = true;
+ if (obj == null) return result;
+ if (nativeEvery && obj.every === nativeEvery) return obj.every(predicate, context);
+ each(obj, function(value, index, list) {
+ if (!(result = result && predicate.call(context, value, index, list))) return breaker;
+ });
+ return !!result;
+ };
+
+ // Determine if at least one element in the object matches a truth test.
+ // Delegates to **ECMAScript 5**'s native `some` if available.
+ // Aliased as `any`.
+ var any = _.some = _.any = function(obj, predicate, context) {
+ predicate || (predicate = _.identity);
+ var result = false;
+ if (obj == null) return result;
+ if (nativeSome && obj.some === nativeSome) return obj.some(predicate, context);
+ each(obj, function(value, index, list) {
+ if (result || (result = predicate.call(context, value, index, list))) return breaker;
+ });
+ return !!result;
+ };
+
+ // Determine if the array or object contains a given value (using `===`).
+ // Aliased as `include`.
+ _.contains = _.include = function(obj, target) {
+ if (obj == null) return false;
+ if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
+ return any(obj, function(value) {
+ return value === target;
+ });
+ };
+
+ // Invoke a method (with arguments) on every item in a collection.
+ _.invoke = function(obj, method) {
+ var args = slice.call(arguments, 2);
+ var isFunc = _.isFunction(method);
+ return _.map(obj, function(value) {
+ return (isFunc ? method : value[method]).apply(value, args);
+ });
+ };
+
+ // Convenience version of a common use case of `map`: fetching a property.
+ _.pluck = function(obj, key) {
+ return _.map(obj, _.property(key));
+ };
+
+ // Convenience version of a common use case of `filter`: selecting only objects
+ // containing specific `key:value` pairs.
+ _.where = function(obj, attrs) {
+ return _.filter(obj, _.matches(attrs));
+ };
+
+ // Convenience version of a common use case of `find`: getting the first object
+ // containing specific `key:value` pairs.
+ _.findWhere = function(obj, attrs) {
+ return _.find(obj, _.matches(attrs));
+ };
+
+ // Return the maximum element or (element-based computation).
+ // Can't optimize arrays of integers longer than 65,535 elements.
+ // See [WebKit Bug 80797](https://bugs.webkit.org/show_bug.cgi?id=80797)
+ _.max = function(obj, iterator, context) {
+ if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
+ return Math.max.apply(Math, obj);
+ }
+ var result = -Infinity, lastComputed = -Infinity;
+ each(obj, function(value, index, list) {
+ var computed = iterator ? iterator.call(context, value, index, list) : value;
+ if (computed > lastComputed) {
+ result = value;
+ lastComputed = computed;
+ }
+ });
+ return result;
+ };
+
+ // Return the minimum element (or element-based computation).
+ _.min = function(obj, iterator, context) {
+ if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
+ return Math.min.apply(Math, obj);
+ }
+ var result = Infinity, lastComputed = Infinity;
+ each(obj, function(value, index, list) {
+ var computed = iterator ? iterator.call(context, value, index, list) : value;
+ if (computed < lastComputed) {
+ result = value;
+ lastComputed = computed;
+ }
+ });
+ return result;
+ };
+
+ // Shuffle an array, using the modern version of the
+ // [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle).
+ _.shuffle = function(obj) {
+ var rand;
+ var index = 0;
+ var shuffled = [];
+ each(obj, function(value) {
+ rand = _.random(index++);
+ shuffled[index - 1] = shuffled[rand];
+ shuffled[rand] = value;
+ });
+ return shuffled;
+ };
+
+ // Sample **n** random values from a collection.
+ // If **n** is not specified, returns a single random element.
+ // The internal `guard` argument allows it to work with `map`.
+ _.sample = function(obj, n, guard) {
+ if (n == null || guard) {
+ if (obj.length !== +obj.length) obj = _.values(obj);
+ return obj[_.random(obj.length - 1)];
+ }
+ return _.shuffle(obj).slice(0, Math.max(0, n));
+ };
+
+ // An internal function to generate lookup iterators.
+ var lookupIterator = function(value) {
+ if (value == null) return _.identity;
+ if (_.isFunction(value)) return value;
+ return _.property(value);
+ };
+
+ // Sort the object's values by a criterion produced by an iterator.
+ _.sortBy = function(obj, iterator, context) {
+ iterator = lookupIterator(iterator);
+ return _.pluck(_.map(obj, function(value, index, list) {
+ return {
+ value: value,
+ index: index,
+ criteria: iterator.call(context, value, index, list)
+ };
+ }).sort(function(left, right) {
+ var a = left.criteria;
+ var b = right.criteria;
+ if (a !== b) {
+ if (a > b || a === void 0) return 1;
+ if (a < b || b === void 0) return -1;
+ }
+ return left.index - right.index;
+ }), 'value');
+ };
+
+ // An internal function used for aggregate "group by" operations.
+ var group = function(behavior) {
+ return function(obj, iterator, context) {
+ var result = {};
+ iterator = lookupIterator(iterator);
+ each(obj, function(value, index) {
+ var key = iterator.call(context, value, index, obj);
+ behavior(result, key, value);
+ });
+ return result;
+ };
+ };
+
+ // Groups the object's values by a criterion. Pass either a string attribute
+ // to group by, or a function that returns the criterion.
+ _.groupBy = group(function(result, key, value) {
+ _.has(result, key) ? result[key].push(value) : result[key] = [value];
+ });
+
+ // Indexes the object's values by a criterion, similar to `groupBy`, but for
+ // when you know that your index values will be unique.
+ _.indexBy = group(function(result, key, value) {
+ result[key] = value;
+ });
+
+ // Counts instances of an object that group by a certain criterion. Pass
+ // either a string attribute to count by, or a function that returns the
+ // criterion.
+ _.countBy = group(function(result, key) {
+ _.has(result, key) ? result[key]++ : result[key] = 1;
+ });
+
+ // Use a comparator function to figure out the smallest index at which
+ // an object should be inserted so as to maintain order. Uses binary search.
+ _.sortedIndex = function(array, obj, iterator, context) {
+ iterator = lookupIterator(iterator);
+ var value = iterator.call(context, obj);
+ var low = 0, high = array.length;
+ while (low < high) {
+ var mid = (low + high) >>> 1;
+ iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid;
+ }
+ return low;
+ };
+
+ // Safely create a real, live array from anything iterable.
+ _.toArray = function(obj) {
+ if (!obj) return [];
+ if (_.isArray(obj)) return slice.call(obj);
+ if (obj.length === +obj.length) return _.map(obj, _.identity);
+ return _.values(obj);
+ };
+
+ // Return the number of elements in an object.
+ _.size = function(obj) {
+ if (obj == null) return 0;
+ return (obj.length === +obj.length) ? obj.length : _.keys(obj).length;
+ };
+
+ // Array Functions
+ // ---------------
+
+ // Get the first element of an array. Passing **n** will return the first N
+ // values in the array. Aliased as `head` and `take`. The **guard** check
+ // allows it to work with `_.map`.
+ _.first = _.head = _.take = function(array, n, guard) {
+ if (array == null) return void 0;
+ if ((n == null) || guard) return array[0];
+ if (n < 0) return [];
+ return slice.call(array, 0, n);
+ };
+
+ // Returns everything but the last entry of the array. Especially useful on
+ // the arguments object. Passing **n** will return all the values in
+ // the array, excluding the last N. The **guard** check allows it to work with
+ // `_.map`.
+ _.initial = function(array, n, guard) {
+ return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));
+ };
+
+ // Get the last element of an array. Passing **n** will return the last N
+ // values in the array. The **guard** check allows it to work with `_.map`.
+ _.last = function(array, n, guard) {
+ if (array == null) return void 0;
+ if ((n == null) || guard) return array[array.length - 1];
+ return slice.call(array, Math.max(array.length - n, 0));
+ };
+
+ // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
+ // Especially useful on the arguments object. Passing an **n** will return
+ // the rest N values in the array. The **guard**
+ // check allows it to work with `_.map`.
+ _.rest = _.tail = _.drop = function(array, n, guard) {
+ return slice.call(array, (n == null) || guard ? 1 : n);
+ };
+
+ // Trim out all falsy values from an array.
+ _.compact = function(array) {
+ return _.filter(array, _.identity);
+ };
+
+ // Internal implementation of a recursive `flatten` function.
+ var flatten = function(input, shallow, output) {
+ if (shallow && _.every(input, _.isArray)) {
+ return concat.apply(output, input);
+ }
+ each(input, function(value) {
+ if (_.isArray(value) || _.isArguments(value)) {
+ shallow ? push.apply(output, value) : flatten(value, shallow, output);
+ } else {
+ output.push(value);
+ }
+ });
+ return output;
+ };
+
+ // Flatten out an array, either recursively (by default), or just one level.
+ _.flatten = function(array, shallow) {
+ return flatten(array, shallow, []);
+ };
+
+ // Return a version of the array that does not contain the specified value(s).
+ _.without = function(array) {
+ return _.difference(array, slice.call(arguments, 1));
+ };
+
+ // Split an array into two arrays: one whose elements all satisfy the given
+ // predicate, and one whose elements all do not satisfy the predicate.
+ _.partition = function(array, predicate) {
+ var pass = [], fail = [];
+ each(array, function(elem) {
+ (predicate(elem) ? pass : fail).push(elem);
+ });
+ return [pass, fail];
+ };
+
+ // Produce a duplicate-free version of the array. If the array has already
+ // been sorted, you have the option of using a faster algorithm.
+ // Aliased as `unique`.
+ _.uniq = _.unique = function(array, isSorted, iterator, context) {
+ if (_.isFunction(isSorted)) {
+ context = iterator;
+ iterator = isSorted;
+ isSorted = false;
+ }
+ var initial = iterator ? _.map(array, iterator, context) : array;
+ var results = [];
+ var seen = [];
+ each(initial, function(value, index) {
+ if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.contains(seen, value)) {
+ seen.push(value);
+ results.push(array[index]);
+ }
+ });
+ return results;
+ };
+
+ // Produce an array that contains the union: each distinct element from all of
+ // the passed-in arrays.
+ _.union = function() {
+ return _.uniq(_.flatten(arguments, true));
+ };
+
+ // Produce an array that contains every item shared between all the
+ // passed-in arrays.
+ _.intersection = function(array) {
+ var rest = slice.call(arguments, 1);
+ return _.filter(_.uniq(array), function(item) {
+ return _.every(rest, function(other) {
+ return _.contains(other, item);
+ });
+ });
+ };
+
+ // Take the difference between one array and a number of other arrays.
+ // Only the elements present in just the first array will remain.
+ _.difference = function(array) {
+ var rest = concat.apply(ArrayProto, slice.call(arguments, 1));
+ return _.filter(array, function(value){ return !_.contains(rest, value); });
+ };
+
+ // Zip together multiple lists into a single array -- elements that share
+ // an index go together.
+ _.zip = function() {
+ var length = _.max(_.pluck(arguments, 'length').concat(0));
+ var results = new Array(length);
+ for (var i = 0; i < length; i++) {
+ results[i] = _.pluck(arguments, '' + i);
+ }
+ return results;
+ };
+
+ // Converts lists into objects. Pass either a single array of `[key, value]`
+ // pairs, or two parallel arrays of the same length -- one of keys, and one of
+ // the corresponding values.
+ _.object = function(list, values) {
+ if (list == null) return {};
+ var result = {};
+ for (var i = 0, length = list.length; i < length; i++) {
+ if (values) {
+ result[list[i]] = values[i];
+ } else {
+ result[list[i][0]] = list[i][1];
+ }
+ }
+ return result;
+ };
+
+ // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),
+ // we need this function. Return the position of the first occurrence of an
+ // item in an array, or -1 if the item is not included in the array.
+ // Delegates to **ECMAScript 5**'s native `indexOf` if available.
+ // If the array is large and already in sort order, pass `true`
+ // for **isSorted** to use binary search.
+ _.indexOf = function(array, item, isSorted) {
+ if (array == null) return -1;
+ var i = 0, length = array.length;
+ if (isSorted) {
+ if (typeof isSorted == 'number') {
+ i = (isSorted < 0 ? Math.max(0, length + isSorted) : isSorted);
+ } else {
+ i = _.sortedIndex(array, item);
+ return array[i] === item ? i : -1;
+ }
+ }
+ if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted);
+ for (; i < length; i++) if (array[i] === item) return i;
+ return -1;
+ };
+
+ // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
+ _.lastIndexOf = function(array, item, from) {
+ if (array == null) return -1;
+ var hasIndex = from != null;
+ if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) {
+ return hasIndex ? array.lastIndexOf(item, from) : array.lastIndexOf(item);
+ }
+ var i = (hasIndex ? from : array.length);
+ while (i--) if (array[i] === item) return i;
+ return -1;
+ };
+
+ // Generate an integer Array containing an arithmetic progression. A port of
+ // the native Python `range()` function. See
+ // [the Python documentation](http://docs.python.org/library/functions.html#range).
+ _.range = function(start, stop, step) {
+ if (arguments.length <= 1) {
+ stop = start || 0;
+ start = 0;
+ }
+ step = arguments[2] || 1;
+
+ var length = Math.max(Math.ceil((stop - start) / step), 0);
+ var idx = 0;
+ var range = new Array(length);
+
+ while(idx < length) {
+ range[idx++] = start;
+ start += step;
+ }
+
+ return range;
+ };
+
+ // Function (ahem) Functions
+ // ------------------
+
+ // Reusable constructor function for prototype setting.
+ var ctor = function(){};
+
+ // Create a function bound to a given object (assigning `this`, and arguments,
+ // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if
+ // available.
+ _.bind = function(func, context) {
+ var args, bound;
+ if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
+ if (!_.isFunction(func)) throw new TypeError;
+ args = slice.call(arguments, 2);
+ return bound = function() {
+ if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
+ ctor.prototype = func.prototype;
+ var self = new ctor;
+ ctor.prototype = null;
+ var result = func.apply(self, args.concat(slice.call(arguments)));
+ if (Object(result) === result) return result;
+ return self;
+ };
+ };
+
+ // Partially apply a function by creating a version that has had some of its
+ // arguments pre-filled, without changing its dynamic `this` context. _ acts
+ // as a placeholder, allowing any combination of arguments to be pre-filled.
+ _.partial = function(func) {
+ var boundArgs = slice.call(arguments, 1);
+ return function() {
+ var position = 0;
+ var args = boundArgs.slice();
+ for (var i = 0, length = args.length; i < length; i++) {
+ if (args[i] === _) args[i] = arguments[position++];
+ }
+ while (position < arguments.length) args.push(arguments[position++]);
+ return func.apply(this, args);
+ };
+ };
+
+ // Bind a number of an object's methods to that object. Remaining arguments
+ // are the method names to be bound. Useful for ensuring that all callbacks
+ // defined on an object belong to it.
+ _.bindAll = function(obj) {
+ var funcs = slice.call(arguments, 1);
+ if (funcs.length === 0) throw new Error('bindAll must be passed function names');
+ each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
+ return obj;
+ };
+
+ // Memoize an expensive function by storing its results.
+ _.memoize = function(func, hasher) {
+ var memo = {};
+ hasher || (hasher = _.identity);
+ return function() {
+ var key = hasher.apply(this, arguments);
+ return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
+ };
+ };
+
+ // Delays a function for the given number of milliseconds, and then calls
+ // it with the arguments supplied.
+ _.delay = function(func, wait) {
+ var args = slice.call(arguments, 2);
+ return setTimeout(function(){ return func.apply(null, args); }, wait);
+ };
+
+ // Defers a function, scheduling it to run after the current call stack has
+ // cleared.
+ _.defer = function(func) {
+ return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
+ };
+
+ // Returns a function, that, when invoked, will only be triggered at most once
+ // during a given window of time. Normally, the throttled function will run
+ // as much as it can, without ever going more than once per `wait` duration;
+ // but if you'd like to disable the execution on the leading edge, pass
+ // `{leading: false}`. To disable execution on the trailing edge, ditto.
+ _.throttle = function(func, wait, options) {
+ var context, args, result;
+ var timeout = null;
+ var previous = 0;
+ options || (options = {});
+ var later = function() {
+ previous = options.leading === false ? 0 : _.now();
+ timeout = null;
+ result = func.apply(context, args);
+ context = args = null;
+ };
+ return function() {
+ var now = _.now();
+ if (!previous && options.leading === false) previous = now;
+ var remaining = wait - (now - previous);
+ context = this;
+ args = arguments;
+ if (remaining <= 0) {
+ clearTimeout(timeout);
+ timeout = null;
+ previous = now;
+ result = func.apply(context, args);
+ context = args = null;
+ } else if (!timeout && options.trailing !== false) {
+ timeout = setTimeout(later, remaining);
+ }
+ return result;
+ };
+ };
+
+ // Returns a function, that, as long as it continues to be invoked, will not
+ // be triggered. The function will be called after it stops being called for
+ // N milliseconds. If `immediate` is passed, trigger the function on the
+ // leading edge, instead of the trailing.
+ _.debounce = function(func, wait, immediate) {
+ var timeout, args, context, timestamp, result;
+
+ var later = function() {
+ var last = _.now() - timestamp;
+ if (last < wait) {
+ timeout = setTimeout(later, wait - last);
+ } else {
+ timeout = null;
+ if (!immediate) {
+ result = func.apply(context, args);
+ context = args = null;
+ }
+ }
+ };
+
+ return function() {
+ context = this;
+ args = arguments;
+ timestamp = _.now();
+ var callNow = immediate && !timeout;
+ if (!timeout) {
+ timeout = setTimeout(later, wait);
+ }
+ if (callNow) {
+ result = func.apply(context, args);
+ context = args = null;
+ }
+
+ return result;
+ };
+ };
+
+ // Returns a function that will be executed at most one time, no matter how
+ // often you call it. Useful for lazy initialization.
+ _.once = function(func) {
+ var ran = false, memo;
+ return function() {
+ if (ran) return memo;
+ ran = true;
+ memo = func.apply(this, arguments);
+ func = null;
+ return memo;
+ };
+ };
+
+ // Returns the first function passed as an argument to the second,
+ // allowing you to adjust arguments, run code before and after, and
+ // conditionally execute the original function.
+ _.wrap = function(func, wrapper) {
+ return _.partial(wrapper, func);
+ };
+
+ // Returns a function that is the composition of a list of functions, each
+ // consuming the return value of the function that follows.
+ _.compose = function() {
+ var funcs = arguments;
+ return function() {
+ var args = arguments;
+ for (var i = funcs.length - 1; i >= 0; i--) {
+ args = [funcs[i].apply(this, args)];
+ }
+ return args[0];
+ };
+ };
+
+ // Returns a function that will only be executed after being called N times.
+ _.after = function(times, func) {
+ return function() {
+ if (--times < 1) {
+ return func.apply(this, arguments);
+ }
+ };
+ };
+
+ // Object Functions
+ // ----------------
+
+ // Retrieve the names of an object's properties.
+ // Delegates to **ECMAScript 5**'s native `Object.keys`
+ _.keys = function(obj) {
+ if (!_.isObject(obj)) return [];
+ if (nativeKeys) return nativeKeys(obj);
+ var keys = [];
+ for (var key in obj) if (_.has(obj, key)) keys.push(key);
+ return keys;
+ };
+
+ // Retrieve the values of an object's properties.
+ _.values = function(obj) {
+ var keys = _.keys(obj);
+ var length = keys.length;
+ var values = new Array(length);
+ for (var i = 0; i < length; i++) {
+ values[i] = obj[keys[i]];
+ }
+ return values;
+ };
+
+ // Convert an object into a list of `[key, value]` pairs.
+ _.pairs = function(obj) {
+ var keys = _.keys(obj);
+ var length = keys.length;
+ var pairs = new Array(length);
+ for (var i = 0; i < length; i++) {
+ pairs[i] = [keys[i], obj[keys[i]]];
+ }
+ return pairs;
+ };
+
+ // Invert the keys and values of an object. The values must be serializable.
+ _.invert = function(obj) {
+ var result = {};
+ var keys = _.keys(obj);
+ for (var i = 0, length = keys.length; i < length; i++) {
+ result[obj[keys[i]]] = keys[i];
+ }
+ return result;
+ };
+
+ // Return a sorted list of the function names available on the object.
+ // Aliased as `methods`
+ _.functions = _.methods = function(obj) {
+ var names = [];
+ for (var key in obj) {
+ if (_.isFunction(obj[key])) names.push(key);
+ }
+ return names.sort();
+ };
+
+ // Extend a given object with all the properties in passed-in object(s).
+ _.extend = function(obj) {
+ each(slice.call(arguments, 1), function(source) {
+ if (source) {
+ for (var prop in source) {
+ obj[prop] = source[prop];
+ }
+ }
+ });
+ return obj;
+ };
+
+ // Return a copy of the object only containing the whitelisted properties.
+ _.pick = function(obj) {
+ var copy = {};
+ var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
+ each(keys, function(key) {
+ if (key in obj) copy[key] = obj[key];
+ });
+ return copy;
+ };
+
+ // Return a copy of the object without the blacklisted properties.
+ _.omit = function(obj) {
+ var copy = {};
+ var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
+ for (var key in obj) {
+ if (!_.contains(keys, key)) copy[key] = obj[key];
+ }
+ return copy;
+ };
+
+ // Fill in a given object with default properties.
+ _.defaults = function(obj) {
+ each(slice.call(arguments, 1), function(source) {
+ if (source) {
+ for (var prop in source) {
+ if (obj[prop] === void 0) obj[prop] = source[prop];
+ }
+ }
+ });
+ return obj;
+ };
+
+ // Create a (shallow-cloned) duplicate of an object.
+ _.clone = function(obj) {
+ if (!_.isObject(obj)) return obj;
+ return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
+ };
+
+ // Invokes interceptor with the obj, and then returns obj.
+ // The primary purpose of this method is to "tap into" a method chain, in
+ // order to perform operations on intermediate results within the chain.
+ _.tap = function(obj, interceptor) {
+ interceptor(obj);
+ return obj;
+ };
+
+ // Internal recursive comparison function for `isEqual`.
+ var eq = function(a, b, aStack, bStack) {
+ // Identical objects are equal. `0 === -0`, but they aren't identical.
+ // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
+ if (a === b) return a !== 0 || 1 / a == 1 / b;
+ // A strict comparison is necessary because `null == undefined`.
+ if (a == null || b == null) return a === b;
+ // Unwrap any wrapped objects.
+ if (a instanceof _) a = a._wrapped;
+ if (b instanceof _) b = b._wrapped;
+ // Compare `[[Class]]` names.
+ var className = toString.call(a);
+ if (className != toString.call(b)) return false;
+ switch (className) {
+ // Strings, numbers, dates, and booleans are compared by value.
+ case '[object String]':
+ // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
+ // equivalent to `new String("5")`.
+ return a == String(b);
+ case '[object Number]':
+ // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for
+ // other numeric values.
+ return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
+ case '[object Date]':
+ case '[object Boolean]':
+ // Coerce dates and booleans to numeric primitive values. Dates are compared by their
+ // millisecond representations. Note that invalid dates with millisecond representations
+ // of `NaN` are not equivalent.
+ return +a == +b;
+ // RegExps are compared by their source patterns and flags.
+ case '[object RegExp]':
+ return a.source == b.source &&
+ a.global == b.global &&
+ a.multiline == b.multiline &&
+ a.ignoreCase == b.ignoreCase;
+ }
+ if (typeof a != 'object' || typeof b != 'object') return false;
+ // Assume equality for cyclic structures. The algorithm for detecting cyclic
+ // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
+ var length = aStack.length;
+ while (length--) {
+ // Linear search. Performance is inversely proportional to the number of
+ // unique nested structures.
+ if (aStack[length] == a) return bStack[length] == b;
+ }
+ // Objects with different constructors are not equivalent, but `Object`s
+ // from different frames are.
+ var aCtor = a.constructor, bCtor = b.constructor;
+ if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) &&
+ _.isFunction(bCtor) && (bCtor instanceof bCtor))
+ && ('constructor' in a && 'constructor' in b)) {
+ return false;
+ }
+ // Add the first object to the stack of traversed objects.
+ aStack.push(a);
+ bStack.push(b);
+ var size = 0, result = true;
+ // Recursively compare objects and arrays.
+ if (className == '[object Array]') {
+ // Compare array lengths to determine if a deep comparison is necessary.
+ size = a.length;
+ result = size == b.length;
+ if (result) {
+ // Deep compare the contents, ignoring non-numeric properties.
+ while (size--) {
+ if (!(result = eq(a[size], b[size], aStack, bStack))) break;
+ }
+ }
+ } else {
+ // Deep compare objects.
+ for (var key in a) {
+ if (_.has(a, key)) {
+ // Count the expected number of properties.
+ size++;
+ // Deep compare each member.
+ if (!(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack))) break;
+ }
+ }
+ // Ensure that both objects contain the same number of properties.
+ if (result) {
+ for (key in b) {
+ if (_.has(b, key) && !(size--)) break;
+ }
+ result = !size;
+ }
+ }
+ // Remove the first object from the stack of traversed objects.
+ aStack.pop();
+ bStack.pop();
+ return result;
+ };
+
+ // Perform a deep comparison to check if two objects are equal.
+ _.isEqual = function(a, b) {
+ return eq(a, b, [], []);
+ };
+
+ // Is a given array, string, or object empty?
+ // An "empty" object has no enumerable own-properties.
+ _.isEmpty = function(obj) {
+ if (obj == null) return true;
+ if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;
+ for (var key in obj) if (_.has(obj, key)) return false;
+ return true;
+ };
+
+ // Is a given value a DOM element?
+ _.isElement = function(obj) {
+ return !!(obj && obj.nodeType === 1);
+ };
+
+ // Is a given value an array?
+ // Delegates to ECMA5's native Array.isArray
+ _.isArray = nativeIsArray || function(obj) {
+ return toString.call(obj) == '[object Array]';
+ };
+
+ // Is a given variable an object?
+ _.isObject = function(obj) {
+ return obj === Object(obj);
+ };
+
+ // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp.
+ each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp'], function(name) {
+ _['is' + name] = function(obj) {
+ return toString.call(obj) == '[object ' + name + ']';
+ };
+ });
+
+ // Define a fallback version of the method in browsers (ahem, IE), where
+ // there isn't any inspectable "Arguments" type.
+ if (!_.isArguments(arguments)) {
+ _.isArguments = function(obj) {
+ return !!(obj && _.has(obj, 'callee'));
+ };
+ }
+
+ // Optimize `isFunction` if appropriate.
+ if (typeof (/./) !== 'function') {
+ _.isFunction = function(obj) {
+ return typeof obj === 'function';
+ };
+ }
+
+ // Is a given object a finite number?
+ _.isFinite = function(obj) {
+ return isFinite(obj) && !isNaN(parseFloat(obj));
+ };
+
+ // Is the given value `NaN`? (NaN is the only number which does not equal itself).
+ _.isNaN = function(obj) {
+ return _.isNumber(obj) && obj != +obj;
+ };
+
+ // Is a given value a boolean?
+ _.isBoolean = function(obj) {
+ return obj === true || obj === false || toString.call(obj) == '[object Boolean]';
+ };
+
+ // Is a given value equal to null?
+ _.isNull = function(obj) {
+ return obj === null;
+ };
+
+ // Is a given variable undefined?
+ _.isUndefined = function(obj) {
+ return obj === void 0;
+ };
+
+ // Shortcut function for checking if an object has a given property directly
+ // on itself (in other words, not on a prototype).
+ _.has = function(obj, key) {
+ return hasOwnProperty.call(obj, key);
+ };
+
+ // Utility Functions
+ // -----------------
+
+ // Run Underscore.js in *noConflict* mode, returning the `_` variable to its
+ // previous owner. Returns a reference to the Underscore object.
+ _.noConflict = function() {
+ root._ = previousUnderscore;
+ return this;
+ };
+
+ // Keep the identity function around for default iterators.
+ _.identity = function(value) {
+ return value;
+ };
+
+ _.constant = function(value) {
+ return function () {
+ return value;
+ };
+ };
+
+ _.property = function(key) {
+ return function(obj) {
+ return obj[key];
+ };
+ };
+
+ // Returns a predicate for checking whether an object has a given set of `key:value` pairs.
+ _.matches = function(attrs) {
+ return function(obj) {
+ if (obj === attrs) return true; //avoid comparing an object to itself.
+ for (var key in attrs) {
+ if (attrs[key] !== obj[key])
+ return false;
+ }
+ return true;
+ }
+ };
+
+ // Run a function **n** times.
+ _.times = function(n, iterator, context) {
+ var accum = Array(Math.max(0, n));
+ for (var i = 0; i < n; i++) accum[i] = iterator.call(context, i);
+ return accum;
+ };
+
+ // Return a random integer between min and max (inclusive).
+ _.random = function(min, max) {
+ if (max == null) {
+ max = min;
+ min = 0;
+ }
+ return min + Math.floor(Math.random() * (max - min + 1));
+ };
+
+ // A (possibly faster) way to get the current timestamp as an integer.
+ _.now = Date.now || function() { return new Date().getTime(); };
+
+ // List of HTML entities for escaping.
+ var entityMap = {
+ escape: {
+ '&': '&amp;',
+ '<': '&lt;',
+ '>': '&gt;',
+ '"': '&quot;',
+ "'": '&#x27;'
+ }
+ };
+ entityMap.unescape = _.invert(entityMap.escape);
+
+ // Regexes containing the keys and values listed immediately above.
+ var entityRegexes = {
+ escape: new RegExp('[' + _.keys(entityMap.escape).join('') + ']', 'g'),
+ unescape: new RegExp('(' + _.keys(entityMap.unescape).join('|') + ')', 'g')
+ };
+
+ // Functions for escaping and unescaping strings to/from HTML interpolation.
+ _.each(['escape', 'unescape'], function(method) {
+ _[method] = function(string) {
+ if (string == null) return '';
+ return ('' + string).replace(entityRegexes[method], function(match) {
+ return entityMap[method][match];
+ });
+ };
+ });
+
+ // If the value of the named `property` is a function then invoke it with the
+ // `object` as context; otherwise, return it.
+ _.result = function(object, property) {
+ if (object == null) return void 0;
+ var value = object[property];
+ return _.isFunction(value) ? value.call(object) : value;
+ };
+
+ // Add your own custom functions to the Underscore object.
+ _.mixin = function(obj) {
+ each(_.functions(obj), function(name) {
+ var func = _[name] = obj[name];
+ _.prototype[name] = function() {
+ var args = [this._wrapped];
+ push.apply(args, arguments);
+ return result.call(this, func.apply(_, args));
+ };
+ });
+ };
+
+ // Generate a unique integer id (unique within the entire client session).
+ // Useful for temporary DOM ids.
+ var idCounter = 0;
+ _.uniqueId = function(prefix) {
+ var id = ++idCounter + '';
+ return prefix ? prefix + id : id;
+ };
+
+ // By default, Underscore uses ERB-style template delimiters, change the
+ // following template settings to use alternative delimiters.
+ _.templateSettings = {
+ evaluate : /<%([\s\S]+?)%>/g,
+ interpolate : /<%=([\s\S]+?)%>/g,
+ escape : /<%-([\s\S]+?)%>/g
+ };
+
+ // When customizing `templateSettings`, if you don't want to define an
+ // interpolation, evaluation or escaping regex, we need one that is
+ // guaranteed not to match.
+ var noMatch = /(.)^/;
+
+ // Certain characters need to be escaped so that they can be put into a
+ // string literal.
+ var escapes = {
+ "'": "'",
+ '\\': '\\',
+ '\r': 'r',
+ '\n': 'n',
+ '\t': 't',
+ '\u2028': 'u2028',
+ '\u2029': 'u2029'
+ };
+
+ var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g;
+
+ // JavaScript micro-templating, similar to John Resig's implementation.
+ // Underscore templating handles arbitrary delimiters, preserves whitespace,
+ // and correctly escapes quotes within interpolated code.
+ _.template = function(text, data, settings) {
+ var render;
+ settings = _.defaults({}, settings, _.templateSettings);
+
+ // Combine delimiters into one regular expression via alternation.
+ var matcher = new RegExp([
+ (settings.escape || noMatch).source,
+ (settings.interpolate || noMatch).source,
+ (settings.evaluate || noMatch).source
+ ].join('|') + '|$', 'g');
+
+ // Compile the template source, escaping string literals appropriately.
+ var index = 0;
+ var source = "__p+='";
+ text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
+ source += text.slice(index, offset)
+ .replace(escaper, function(match) { return '\\' + escapes[match]; });
+
+ if (escape) {
+ source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
+ }
+ if (interpolate) {
+ source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
+ }
+ if (evaluate) {
+ source += "';\n" + evaluate + "\n__p+='";
+ }
+ index = offset + match.length;
+ return match;
+ });
+ source += "';\n";
+
+ // If a variable is not specified, place data values in local scope.
+ if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';
+
+ source = "var __t,__p='',__j=Array.prototype.join," +
+ "print=function(){__p+=__j.call(arguments,'');};\n" +
+ source + "return __p;\n";
+
+ try {
+ render = new Function(settings.variable || 'obj', '_', source);
+ } catch (e) {
+ e.source = source;
+ throw e;
+ }
+
+ if (data) return render(data, _);
+ var template = function(data) {
+ return render.call(this, data, _);
+ };
+
+ // Provide the compiled function source as a convenience for precompilation.
+ template.source = 'function(' + (settings.variable || 'obj') + '){\n' + source + '}';
+
+ return template;
+ };
+
+ // Add a "chain" function, which will delegate to the wrapper.
+ _.chain = function(obj) {
+ return _(obj).chain();
+ };
+
+ // OOP
+ // ---------------
+ // If Underscore is called as a function, it returns a wrapped object that
+ // can be used OO-style. This wrapper holds altered versions of all the
+ // underscore functions. Wrapped objects may be chained.
+
+ // Helper function to continue chaining intermediate results.
+ var result = function(obj) {
+ return this._chain ? _(obj).chain() : obj;
+ };
+
+ // Add all of the Underscore functions to the wrapper object.
+ _.mixin(_);
+
+ // Add all mutator Array functions to the wrapper.
+ each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
+ var method = ArrayProto[name];
+ _.prototype[name] = function() {
+ var obj = this._wrapped;
+ method.apply(obj, arguments);
+ if ((name == 'shift' || name == 'splice') && obj.length === 0) delete obj[0];
+ return result.call(this, obj);
+ };
+ });
+
+ // Add all accessor Array functions to the wrapper.
+ each(['concat', 'join', 'slice'], function(name) {
+ var method = ArrayProto[name];
+ _.prototype[name] = function() {
+ return result.call(this, method.apply(this._wrapped, arguments));
+ };
+ });
+
+ _.extend(_.prototype, {
+
+ // Start chaining a wrapped Underscore object.
+ chain: function() {
+ this._chain = true;
+ return this;
+ },
+
+ // Extracts the result from a wrapped and chained object.
+ value: function() {
+ return this._wrapped;
+ }
+
+ });
+
+ // AMD registration happens at the end for compatibility with AMD loaders
+ // that may not enforce next-turn semantics on modules. Even though general
+ // practice for AMD registration is to be anonymous, underscore registers
+ // as a named module because, like jQuery, it is a base library that is
+ // popular enough to be bundled in a third party lib, but not be part of
+ // an AMD load request. Those cases could generate an error when an
+ // anonymous define() is called outside of a loader request.
+ if (typeof define === 'function' && define.amd) {
+ define('underscore', [], function() {
+ return _;
+ });
+ }
+}).call(this);
generated by cgit v1.2.3 (git 2.25.4) at 2024-11-22 07:30:40 +0000