Sun calculation js library which is fully based on formula from http://aa.quae.nl/en/reken/zonpositie.html
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62 lines
2.0 KiB
62 lines
2.0 KiB
7 years ago
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"use strict";
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var util = require("./util");
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var schedule;
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var noAsyncScheduler = function() {
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throw new Error("No async scheduler available\u000a\u000a See http://goo.gl/MqrFmX\u000a");
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};
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var NativePromise = util.getNativePromise();
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if (util.isNode && typeof MutationObserver === "undefined") {
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var GlobalSetImmediate = global.setImmediate;
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var ProcessNextTick = process.nextTick;
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schedule = util.isRecentNode
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? function(fn) { GlobalSetImmediate.call(global, fn); }
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: function(fn) { ProcessNextTick.call(process, fn); };
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} else if (typeof NativePromise === "function" &&
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typeof NativePromise.resolve === "function") {
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var nativePromise = NativePromise.resolve();
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schedule = function(fn) {
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nativePromise.then(fn);
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};
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} else if ((typeof MutationObserver !== "undefined") &&
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!(typeof window !== "undefined" &&
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window.navigator &&
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(window.navigator.standalone || window.cordova))) {
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schedule = (function() {
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var div = document.createElement("div");
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var opts = {attributes: true};
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var toggleScheduled = false;
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var div2 = document.createElement("div");
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var o2 = new MutationObserver(function() {
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div.classList.toggle("foo");
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toggleScheduled = false;
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});
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o2.observe(div2, opts);
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var scheduleToggle = function() {
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if (toggleScheduled) return;
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toggleScheduled = true;
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div2.classList.toggle("foo");
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};
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return function schedule(fn) {
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var o = new MutationObserver(function() {
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o.disconnect();
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fn();
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});
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o.observe(div, opts);
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scheduleToggle();
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};
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})();
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} else if (typeof setImmediate !== "undefined") {
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schedule = function (fn) {
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setImmediate(fn);
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};
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} else if (typeof setTimeout !== "undefined") {
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schedule = function (fn) {
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setTimeout(fn, 0);
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};
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} else {
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schedule = noAsyncScheduler;
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}
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module.exports = schedule;
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