From d7507c1fbae1362bfb4525b074061a5303a9cc71 Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Wed, 18 Apr 2018 08:47:15 +0200 Subject: wip --- bower_components/headjs/dist/1.0.0/head.load.js | 707 ++++++++++++++++++++++++ 1 file changed, 707 insertions(+) create mode 100644 bower_components/headjs/dist/1.0.0/head.load.js (limited to 'bower_components/headjs/dist/1.0.0/head.load.js') diff --git a/bower_components/headjs/dist/1.0.0/head.load.js b/bower_components/headjs/dist/1.0.0/head.load.js new file mode 100644 index 0000000..6884e3e --- /dev/null +++ b/bower_components/headjs/dist/1.0.0/head.load.js @@ -0,0 +1,707 @@ +///#source 1 1 /src/1.0.0/load.js +/*! head.load - v1.0.3 */ +/* + * HeadJS The only script in your + * Author Tero Piirainen (tipiirai) + * Maintainer Robert Hoffmann (itechnology) + * License MIT / http://bit.ly/mit-license + * WebSite http://headjs.com + */ +(function (win, undefined) { + "use strict"; + + //#region variables + var doc = win.document, + domWaiters = [], + handlers = {}, // user functions waiting for events + assets = {}, // loadable items in various states + isAsync = "async" in doc.createElement("script") || "MozAppearance" in doc.documentElement.style || win.opera, + isDomReady, + + /*** public API ***/ + headVar = win.head_conf && win.head_conf.head || "head", + api = win[headVar] = (win[headVar] || function () { api.ready.apply(null, arguments); }), + + // states + PRELOADING = 1, + PRELOADED = 2, + LOADING = 3, + LOADED = 4; + //#endregion + + //#region PRIVATE functions + + //#region Helper functions + function noop() { + // does nothing + } + + function each(arr, callback) { + if (!arr) { + return; + } + + // arguments special type + if (typeof arr === "object") { + arr = [].slice.call(arr); + } + + // do the job + for (var i = 0, l = arr.length; i < l; i++) { + callback.call(arr, arr[i], i); + } + } + + /* A must read: http://bonsaiden.github.com/JavaScript-Garden + ************************************************************/ + function is(type, obj) { + var clas = Object.prototype.toString.call(obj).slice(8, -1); + return obj !== undefined && obj !== null && clas === type; + } + + function isFunction(item) { + return is("Function", item); + } + + function isArray(item) { + return is("Array", item); + } + + function toLabel(url) { + ///Converts a url to a file label + var items = url.split("/"), + name = items[items.length - 1], + i = name.indexOf("?"); + + return i !== -1 ? name.substring(0, i) : name; + } + + // INFO: this look like a "im triggering callbacks all over the place, but only wanna run it one time function" ..should try to make everything work without it if possible + // INFO: Even better. Look into promises/defered's like jQuery is doing + function one(callback) { + ///Execute a callback only once + callback = callback || noop; + + if (callback._done) { + return; + } + + callback(); + callback._done = 1; + } + //#endregion + + function conditional(test, success, failure, callback) { + /// + /// INFO: use cases: + /// head.test(condition, null , "file.NOk" , callback); + /// head.test(condition, "fileOk.js", null , callback); + /// head.test(condition, "fileOk.js", "file.NOk" , callback); + /// head.test(condition, "fileOk.js", ["file.NOk", "file.NOk"], callback); + /// head.test({ + /// test : condition, + /// success : [{ label1: "file1Ok.js" }, { label2: "file2Ok.js" }], + /// failure : [{ label1: "file1NOk.js" }, { label2: "file2NOk.js" }], + /// callback: callback + /// ); + /// head.test({ + /// test : condition, + /// success : ["file1Ok.js" , "file2Ok.js"], + /// failure : ["file1NOk.js", "file2NOk.js"], + /// callback: callback + /// ); + /// + var obj = (typeof test === "object") ? test : { + test: test, + success: !!success ? isArray(success) ? success : [success] : false, + failure: !!failure ? isArray(failure) ? failure : [failure] : false, + callback: callback || noop + }; + + // Test Passed ? + var passed = !!obj.test; + + // Do we have a success case + if (passed && !!obj.success) { + obj.success.push(obj.callback); + api.load.apply(null, obj.success); + } + // Do we have a fail case + else if (!passed && !!obj.failure) { + obj.failure.push(obj.callback); + api.load.apply(null, obj.failure); + } + else { + callback(); + } + + return api; + } + + function getAsset(item) { + /// + /// Assets are in the form of + /// { + /// name : label, + /// url : url, + /// state: state + /// } + /// + var asset = {}; + + if (typeof item === "object") { + for (var label in item) { + if (!!item[label]) { + asset = { + name: label, + url : item[label] + }; + } + } + } + else { + asset = { + name: toLabel(item), + url : item + }; + } + + // is the item already existant + var existing = assets[asset.name]; + if (existing && existing.url === asset.url) { + return existing; + } + + assets[asset.name] = asset; + return asset; + } + + function allLoaded(items) { + items = items || assets; + + for (var name in items) { + if (items.hasOwnProperty(name) && items[name].state !== LOADED) { + return false; + } + } + + return true; + } + + function onPreload(asset) { + asset.state = PRELOADED; + + each(asset.onpreload, function (afterPreload) { + afterPreload.call(); + }); + } + + function preLoad(asset, callback) { + if (asset.state === undefined) { + + asset.state = PRELOADING; + asset.onpreload = []; + + loadAsset({ url: asset.url, type: "cache" }, function () { + onPreload(asset); + }); + } + } + + function apiLoadHack() { + /// preload with text/cache hack + /// + /// head.load("http://domain.com/file.js","http://domain.com/file.js", callBack) + /// head.load(["http://domain.com/file.js","http://domain.com/file.js"], callBack) + /// head.load({ label1: "http://domain.com/file.js" }, { label2: "http://domain.com/file.js" }, callBack) + /// head.load([{ label1: "http://domain.com/file.js" }, { label2: "http://domain.com/file.js" }], callBack) + /// + var args = arguments, + callback = args[args.length - 1], + rest = [].slice.call(args, 1), + next = rest[0]; + + if (!isFunction(callback)) { + callback = null; + } + + // if array, repush as args + if (isArray(args[0])) { + args[0].push(callback); + api.load.apply(null, args[0]); + + return api; + } + + // multiple arguments + if (!!next) { + /* Preload with text/cache hack (not good!) + * http://blog.getify.com/on-script-loaders/ + * http://www.nczonline.net/blog/2010/12/21/thoughts-on-script-loaders/ + * If caching is not configured correctly on the server, then items could load twice ! + *************************************************************************************/ + each(rest, function (item) { + // item is not a callback or empty string + if (!isFunction(item) && !!item) { + preLoad(getAsset(item)); + } + }); + + // execute + load(getAsset(args[0]), isFunction(next) ? next : function () { + api.load.apply(null, rest); + }); + } + else { + // single item + load(getAsset(args[0])); + } + + return api; + } + + function apiLoadAsync() { + /// + /// simply load and let browser take care of ordering + /// + /// head.load("http://domain.com/file.js","http://domain.com/file.js", callBack) + /// head.load(["http://domain.com/file.js","http://domain.com/file.js"], callBack) + /// head.load({ label1: "http://domain.com/file.js" }, { label2: "http://domain.com/file.js" }, callBack) + /// head.load([{ label1: "http://domain.com/file.js" }, { label2: "http://domain.com/file.js" }], callBack) + /// + var args = arguments, + callback = args[args.length - 1], + items = {}; + + if (!isFunction(callback)) { + callback = null; + } + + // if array, repush as args + if (isArray(args[0])) { + args[0].push(callback); + api.load.apply(null, args[0]); + + return api; + } + + // JRH 262#issuecomment-26288601 + // First populate the items array. + // When allLoaded is called, all items will be populated. + // Issue when lazy loaded, the callback can execute early. + each(args, function (item, i) { + if (item !== callback) { + item = getAsset(item); + items[item.name] = item; + } + }); + + each(args, function (item, i) { + if (item !== callback) { + item = getAsset(item); + + load(item, function () { + if (allLoaded(items)) { + one(callback); + } + }); + } + }); + + return api; + } + + function load(asset, callback) { + ///Used with normal loading logic + callback = callback || noop; + + if (asset.state === LOADED) { + callback(); + return; + } + + // INFO: why would we trigger a ready event when its not really loaded yet ? + if (asset.state === LOADING) { + api.ready(asset.name, callback); + return; + } + + if (asset.state === PRELOADING) { + asset.onpreload.push(function () { + load(asset, callback); + }); + return; + } + + asset.state = LOADING; + + loadAsset(asset, function () { + asset.state = LOADED; + + callback(); + + // handlers for this asset + each(handlers[asset.name], function (fn) { + one(fn); + }); + + // dom is ready & no assets are queued for loading + // INFO: shouldn't we be doing the same test above ? + if (isDomReady && allLoaded()) { + each(handlers.ALL, function (fn) { + one(fn); + }); + } + }); + } + + function getExtension(url) { + url = url || ""; + + var items = url.split("?")[0].split("."); + return items[items.length-1].toLowerCase(); + } + + /* Parts inspired from: https://github.com/cujojs/curl + ******************************************************/ + function loadAsset(asset, callback) { + callback = callback || noop; + + function error(event) { + event = event || win.event; + + // release event listeners + ele.onload = ele.onreadystatechange = ele.onerror = null; + + // do callback + callback(); + + // need some more detailed error handling here + } + + function process(event) { + event = event || win.event; + + // IE 7/8 (2 events on 1st load) + // 1) event.type = readystatechange, s.readyState = loading + // 2) event.type = readystatechange, s.readyState = loaded + + // IE 7/8 (1 event on reload) + // 1) event.type = readystatechange, s.readyState = complete + + // event.type === 'readystatechange' && /loaded|complete/.test(s.readyState) + + // IE 9 (3 events on 1st load) + // 1) event.type = readystatechange, s.readyState = loading + // 2) event.type = readystatechange, s.readyState = loaded + // 3) event.type = load , s.readyState = loaded + + // IE 9 (2 events on reload) + // 1) event.type = readystatechange, s.readyState = complete + // 2) event.type = load , s.readyState = complete + + // event.type === 'load' && /loaded|complete/.test(s.readyState) + // event.type === 'readystatechange' && /loaded|complete/.test(s.readyState) + + // IE 10 (3 events on 1st load) + // 1) event.type = readystatechange, s.readyState = loading + // 2) event.type = load , s.readyState = complete + // 3) event.type = readystatechange, s.readyState = loaded + + // IE 10 (3 events on reload) + // 1) event.type = readystatechange, s.readyState = loaded + // 2) event.type = load , s.readyState = complete + // 3) event.type = readystatechange, s.readyState = complete + + // event.type === 'load' && /loaded|complete/.test(s.readyState) + // event.type === 'readystatechange' && /complete/.test(s.readyState) + + // Other Browsers (1 event on 1st load) + // 1) event.type = load, s.readyState = undefined + + // Other Browsers (1 event on reload) + // 1) event.type = load, s.readyState = undefined + + // event.type == 'load' && s.readyState = undefined + + // !doc.documentMode is for IE6/7, IE8+ have documentMode + if (event.type === "load" || (/loaded|complete/.test(ele.readyState) && (!doc.documentMode || doc.documentMode < 9))) { + // remove timeouts + win.clearTimeout(asset.errorTimeout); + win.clearTimeout(asset.cssTimeout); + + // release event listeners + ele.onload = ele.onreadystatechange = ele.onerror = null; + + // do callback + callback(); + } + } + + function isCssLoaded() { + // should we test again ? 20 retries = 5secs ..after that, the callback will be triggered by the error handler at 7secs + if (asset.state !== LOADED && asset.cssRetries <= 20) { + + // loop through stylesheets + for (var i = 0, l = doc.styleSheets.length; i < l; i++) { + // do we have a match ? + // we need to tests agains ele.href and not asset.url, because a local file will be assigned the full http path on a link element + if (doc.styleSheets[i].href === ele.href) { + process({ "type": "load" }); + return; + } + } + + // increment & try again + asset.cssRetries++; + asset.cssTimeout = win.setTimeout(isCssLoaded, 250); + } + } + + var ele; + var ext = getExtension(asset.url); + + if (ext === "css") { + ele = doc.createElement("link"); + ele.type = "text/" + (asset.type || "css"); + ele.rel = "stylesheet"; + ele.href = asset.url; + + /* onload supported for CSS on unsupported browsers + * Safari windows 5.1.7, FF < 10 + */ + + // Set counter to zero + asset.cssRetries = 0; + asset.cssTimeout = win.setTimeout(isCssLoaded, 500); + } + else { + ele = doc.createElement("script"); + ele.type = "text/" + (asset.type || "javascript"); + ele.src = asset.url; + } + + ele.onload = ele.onreadystatechange = process; + ele.onerror = error; + + /* Good read, but doesn't give much hope ! + * http://blog.getify.com/on-script-loaders/ + * http://www.nczonline.net/blog/2010/12/21/thoughts-on-script-loaders/ + * https://hacks.mozilla.org/2009/06/defer/ + */ + + // ASYNC: load in parallel and execute as soon as possible + ele.async = false; + // DEFER: load in parallel but maintain execution order + ele.defer = false; + + // timout for asset loading + asset.errorTimeout = win.setTimeout(function () { + error({ type: "timeout" }); + }, 7e3); + + // use insertBefore to keep IE from throwing Operation Aborted (thx Bryan Forbes!) + var head = doc.head || doc.getElementsByTagName("head")[0]; + + // but insert at end of head, because otherwise if it is a stylesheet, it will not override values + head.insertBefore(ele, head.lastChild); + } + + /* Parts inspired from: https://github.com/jrburke/requirejs + ************************************************************/ + function init() { + var items = doc.getElementsByTagName("script"); + + // look for a script with a data-head-init attribute + for (var i = 0, l = items.length; i < l; i++) { + var dataMain = items[i].getAttribute("data-headjs-load"); + if (!!dataMain) { + api.load(dataMain); + return; + } + } + } + + function ready(key, callback) { + /// + /// INFO: use cases: + /// head.ready(callBack); + /// head.ready(document , callBack); + /// head.ready("file.js", callBack); + /// head.ready("label" , callBack); + /// head.ready(["label1", "label2"], callback); + /// + + // DOM ready check: head.ready(document, function() { }); + if (key === doc) { + if (isDomReady) { + one(callback); + } + else { + domWaiters.push(callback); + } + + return api; + } + + // shift arguments + if (isFunction(key)) { + callback = key; + key = "ALL"; // holds all callbacks that where added without labels: ready(callBack) + } + + // queue all items from key and return. The callback will be executed if all items from key are already loaded. + if (isArray(key)) { + var items = {}; + + each(key, function (item) { + items[item] = assets[item]; + + api.ready(item, function() { + if (allLoaded(items)) { + one(callback); + } + }); + }); + + return api; + } + + // make sure arguments are sane + if (typeof key !== "string" || !isFunction(callback)) { + return api; + } + + // this can also be called when we trigger events based on filenames & labels + var asset = assets[key]; + + // item already loaded --> execute and return + if (asset && asset.state === LOADED || key === "ALL" && allLoaded() && isDomReady) { + one(callback); + return api; + } + + var arr = handlers[key]; + if (!arr) { + arr = handlers[key] = [callback]; + } + else { + arr.push(callback); + } + + return api; + } + + /* Mix of stuff from jQuery & IEContentLoaded + * http://dev.w3.org/html5/spec/the-end.html#the-end + ***************************************************/ + function domReady() { + // Make sure body exists, at least, in case IE gets a little overzealous (jQuery ticket #5443). + if (!doc.body) { + // let's not get nasty by setting a timeout too small.. (loop mania guaranteed if assets are queued) + win.clearTimeout(api.readyTimeout); + api.readyTimeout = win.setTimeout(domReady, 50); + return; + } + + if (!isDomReady) { + isDomReady = true; + + init(); + each(domWaiters, function (fn) { + one(fn); + }); + } + } + + function domContentLoaded() { + // W3C + if (doc.addEventListener) { + doc.removeEventListener("DOMContentLoaded", domContentLoaded, false); + domReady(); + } + + // IE + else if (doc.readyState === "complete") { + // we're here because readyState === "complete" in oldIE + // which is good enough for us to call the dom ready! + doc.detachEvent("onreadystatechange", domContentLoaded); + domReady(); + } + } + + // Catch cases where ready() is called after the browser event has already occurred. + // we once tried to use readyState "interactive" here, but it caused issues like the one + // discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15 + if (doc.readyState === "complete") { + domReady(); + } + + // W3C + else if (doc.addEventListener) { + doc.addEventListener("DOMContentLoaded", domContentLoaded, false); + + // A fallback to window.onload, that will always work + win.addEventListener("load", domReady, false); + } + + // IE + else { + // Ensure firing before onload, maybe late but safe also for iframes + doc.attachEvent("onreadystatechange", domContentLoaded); + + // A fallback to window.onload, that will always work + win.attachEvent("onload", domReady); + + // If IE and not a frame + // continually check to see if the document is ready + var top = false; + + try { + top = !win.frameElement && doc.documentElement; + } catch (e) { } + + if (top && top.doScroll) { + (function doScrollCheck() { + if (!isDomReady) { + try { + // Use the trick by Diego Perini + // http://javascript.nwbox.com/IEContentLoaded/ + top.doScroll("left"); + } catch (error) { + // let's not get nasty by setting a timeout too small.. (loop mania guaranteed if assets are queued) + win.clearTimeout(api.readyTimeout); + api.readyTimeout = win.setTimeout(doScrollCheck, 50); + return; + } + + // and execute any waiting functions + domReady(); + } + }()); + } + } + //#endregion + + //#region Public Exports + // INFO: determine which method to use for loading + api.load = api.js = isAsync ? apiLoadAsync : apiLoadHack; + api.test = conditional; + api.ready = ready; + //#endregion + + //#region INIT + // perform this when DOM is ready + api.ready(doc, function () { + if (allLoaded()) { + each(handlers.ALL, function (callback) { + one(callback); + }); + } + + if (api.feature) { + api.feature("domloaded", true); + } + }); + //#endregion +}(window)); -- cgit v1.2.3