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@@ -0,0 +1,480 @@
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+/* NProgress, (c) 2013, 2014 Rico Sta. Cruz - http://ricostacruz.com/nprogress
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+ * @license MIT */
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+
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+;(function(root, factory) {
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+
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+ if (typeof define === 'function' && define.amd) {
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+ define(factory);
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+ } else if (typeof exports === 'object') {
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+ module.exports = factory();
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+ } else {
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+ root.NProgress = factory();
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+ }
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+
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+})(this, function() {
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+ var NProgress = {};
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+
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+ NProgress.version = '0.2.0';
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+
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+ var Settings = NProgress.settings = {
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+ minimum: 0.08,
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+ easing: 'linear',
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+ positionUsing: '',
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+ speed: 200,
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+ trickle: true,
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+ trickleSpeed: 200,
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+ showSpinner: true,
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+ barSelector: '[role="bar"]',
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+ spinnerSelector: '[role="spinner"]',
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+ parent: 'body',
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+ template: '<div class="bar" role="bar"><div class="peg"></div></div><div class="spinner" role="spinner"><div class="spinner-icon"></div></div>'
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+ };
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+
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+ /**
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+ * Updates configuration.
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+ *
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+ * NProgress.configure({
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+ * minimum: 0.1
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+ * });
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+ */
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+ NProgress.configure = function(options) {
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+ var key, value;
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+ for (key in options) {
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+ value = options[key];
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+ if (value !== undefined && options.hasOwnProperty(key)) Settings[key] = value;
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+ }
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+
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+ return this;
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+ };
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+
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+ /**
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+ * Last number.
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+ */
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+
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+ NProgress.status = null;
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+
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+ /**
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+ * Sets the progress bar status, where `n` is a number from `0.0` to `1.0`.
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+ *
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+ * NProgress.set(0.4);
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+ * NProgress.set(1.0);
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+ */
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+
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+ NProgress.set = function(n) {
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+ var started = NProgress.isStarted();
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+
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+ n = clamp(n, Settings.minimum, 1);
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+ NProgress.status = (n === 1 ? null : n);
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+
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+ var progress = NProgress.render(!started),
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+ bar = progress.querySelector(Settings.barSelector),
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+ speed = Settings.speed,
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+ ease = Settings.easing;
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+
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+ progress.offsetWidth; /* Repaint */
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+
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+ queue(function(next) {
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+ // Set positionUsing if it hasn't already been set
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+ if (Settings.positionUsing === '') Settings.positionUsing = NProgress.getPositioningCSS();
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+
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+ // Add transition
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+ css(bar, barPositionCSS(n, speed, ease));
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+
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+ if (n === 1) {
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+ // Fade out
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+ css(progress, {
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+ transition: 'none',
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+ opacity: 1
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+ });
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+ progress.offsetWidth; /* Repaint */
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+
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+ setTimeout(function() {
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+ css(progress, {
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+ transition: 'all ' + speed + 'ms linear',
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+ opacity: 0
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+ });
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+ setTimeout(function() {
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+ NProgress.remove();
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+ next();
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+ }, speed);
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+ }, speed);
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+ } else {
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+ setTimeout(next, speed);
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+ }
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+ });
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+
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+ return this;
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+ };
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+
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+ NProgress.isStarted = function() {
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+ return typeof NProgress.status === 'number';
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+ };
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+
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+ /**
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+ * Shows the progress bar.
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+ * This is the same as setting the status to 0%, except that it doesn't go backwards.
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+ *
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+ * NProgress.start();
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+ *
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+ */
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+ NProgress.start = function() {
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+ if (!NProgress.status) NProgress.set(0);
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+
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+ var work = function() {
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+ setTimeout(function() {
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+ if (!NProgress.status) return;
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+ NProgress.trickle();
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+ work();
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+ }, Settings.trickleSpeed);
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+ };
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+
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+ if (Settings.trickle) work();
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+
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+ return this;
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+ };
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+
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+ /**
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+ * Hides the progress bar.
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+ * This is the *sort of* the same as setting the status to 100%, with the
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+ * difference being `done()` makes some placebo effect of some realistic motion.
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+ *
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+ * NProgress.done();
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+ *
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+ * If `true` is passed, it will show the progress bar even if its hidden.
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+ *
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+ * NProgress.done(true);
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+ */
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+
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+ NProgress.done = function(force) {
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+ if (!force && !NProgress.status) return this;
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+
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+ return NProgress.inc(0.3 + 0.5 * Math.random()).set(1);
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+ };
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+
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+ /**
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+ * Increments by a random amount.
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+ */
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+
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+ NProgress.inc = function(amount) {
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+ var n = NProgress.status;
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+
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+ if (!n) {
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+ return NProgress.start();
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+ } else if(n > 1) {
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+ return;
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+ } else {
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+ if (typeof amount !== 'number') {
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+ if (n >= 0 && n < 0.2) { amount = 0.1; }
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+ else if (n >= 0.2 && n < 0.5) { amount = 0.04; }
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+ else if (n >= 0.5 && n < 0.8) { amount = 0.02; }
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+ else if (n >= 0.8 && n < 0.99) { amount = 0.005; }
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+ else { amount = 0; }
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+ }
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+
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+ n = clamp(n + amount, 0, 0.994);
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+ return NProgress.set(n);
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+ }
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+ };
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+
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+ NProgress.trickle = function() {
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+ return NProgress.inc();
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+ };
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+
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+ /**
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+ * Waits for all supplied jQuery promises and
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+ * increases the progress as the promises resolve.
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+ *
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+ * @param $promise jQUery Promise
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+ */
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+ (function() {
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+ var initial = 0, current = 0;
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+
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+ NProgress.promise = function($promise) {
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+ if (!$promise || $promise.state() === "resolved") {
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+ return this;
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+ }
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+
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+ if (current === 0) {
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+ NProgress.start();
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+ }
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+
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+ initial++;
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+ current++;
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+
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+ $promise.always(function() {
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+ current--;
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+ if (current === 0) {
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+ initial = 0;
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+ NProgress.done();
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+ } else {
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+ NProgress.set((initial - current) / initial);
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+ }
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+ });
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+
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+ return this;
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+ };
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+
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+ })();
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+
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+ /**
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+ * (Internal) renders the progress bar markup based on the `template`
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+ * setting.
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+ */
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+
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+ NProgress.render = function(fromStart) {
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+ if (NProgress.isRendered()) return document.getElementById('nprogress');
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+
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+ addClass(document.documentElement, 'nprogress-busy');
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+
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+ var progress = document.createElement('div');
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+ progress.id = 'nprogress';
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+ progress.innerHTML = Settings.template;
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+
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+ var bar = progress.querySelector(Settings.barSelector),
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+ perc = fromStart ? '-100' : toBarPerc(NProgress.status || 0),
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+ parent = document.querySelector(Settings.parent),
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+ spinner;
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+
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+ css(bar, {
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+ transition: 'all 0 linear',
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+ transform: 'translate3d(' + perc + '%,0,0)'
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+ });
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+
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+ if (!Settings.showSpinner) {
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+ spinner = progress.querySelector(Settings.spinnerSelector);
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+ spinner && removeElement(spinner);
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+ }
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+
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+ if (parent != document.body) {
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+ addClass(parent, 'nprogress-custom-parent');
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+ }
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+
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+ parent.appendChild(progress);
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+ return progress;
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+ };
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+
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+ /**
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+ * Removes the element. Opposite of render().
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+ */
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+
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+ NProgress.remove = function() {
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+ removeClass(document.documentElement, 'nprogress-busy');
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+ removeClass(document.querySelector(Settings.parent), 'nprogress-custom-parent');
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+ var progress = document.getElementById('nprogress');
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+ progress && removeElement(progress);
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+ };
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+
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+ /**
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+ * Checks if the progress bar is rendered.
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+ */
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+
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+ NProgress.isRendered = function() {
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+ return !!document.getElementById('nprogress');
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+ };
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+
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+ /**
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+ * Determine which positioning CSS rule to use.
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+ */
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+
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+ NProgress.getPositioningCSS = function() {
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+ // Sniff on document.body.style
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+ var bodyStyle = document.body.style;
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+
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+ // Sniff prefixes
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+ var vendorPrefix = ('WebkitTransform' in bodyStyle) ? 'Webkit' :
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+ ('MozTransform' in bodyStyle) ? 'Moz' :
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+ ('msTransform' in bodyStyle) ? 'ms' :
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+ ('OTransform' in bodyStyle) ? 'O' : '';
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+
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+ if (vendorPrefix + 'Perspective' in bodyStyle) {
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+ // Modern browsers with 3D support, e.g. Webkit, IE10
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+ return 'translate3d';
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+ } else if (vendorPrefix + 'Transform' in bodyStyle) {
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+ // Browsers without 3D support, e.g. IE9
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+ return 'translate';
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+ } else {
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+ // Browsers without translate() support, e.g. IE7-8
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+ return 'margin';
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+ }
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+ };
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+
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+ /**
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+ * Helpers
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+ */
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+
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+ function clamp(n, min, max) {
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+ if (n < min) return min;
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+ if (n > max) return max;
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+ return n;
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+ }
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+
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+ /**
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+ * (Internal) converts a percentage (`0..1`) to a bar translateX
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+ * percentage (`-100%..0%`).
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+ */
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+
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+ function toBarPerc(n) {
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+ return (-1 + n) * 100;
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+ }
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+
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+
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+ /**
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+ * (Internal) returns the correct CSS for changing the bar's
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+ * position given an n percentage, and speed and ease from Settings
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+ */
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+
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+ function barPositionCSS(n, speed, ease) {
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+ var barCSS;
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+
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+ if (Settings.positionUsing === 'translate3d') {
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+ barCSS = { transform: 'translate3d('+toBarPerc(n)+'%,0,0)' };
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+ } else if (Settings.positionUsing === 'translate') {
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+ barCSS = { transform: 'translate('+toBarPerc(n)+'%,0)' };
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+ } else {
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+ barCSS = { 'margin-left': toBarPerc(n)+'%' };
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+ }
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+
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+ barCSS.transition = 'all '+speed+'ms '+ease;
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+
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+ return barCSS;
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+ }
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+
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+ /**
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+ * (Internal) Queues a function to be executed.
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+ */
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+
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+ var queue = (function() {
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+ var pending = [];
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+
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+ function next() {
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+ var fn = pending.shift();
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+ if (fn) {
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+ fn(next);
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+ }
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+ }
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+
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+ return function(fn) {
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+ pending.push(fn);
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+ if (pending.length == 1) next();
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+ };
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+ })();
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+
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+ /**
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+ * (Internal) Applies css properties to an element, similar to the jQuery
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+ * css method.
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+ *
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+ * While this helper does assist with vendor prefixed property names, it
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+ * does not perform any manipulation of values prior to setting styles.
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+ */
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+
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+ var css = (function() {
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+ var cssPrefixes = [ 'Webkit', 'O', 'Moz', 'ms' ],
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+ cssProps = {};
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+
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+ function camelCase(string) {
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+ return string.replace(/^-ms-/, 'ms-').replace(/-([\da-z])/gi, function(match, letter) {
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+ return letter.toUpperCase();
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+ });
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+ }
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+
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+ function getVendorProp(name) {
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+ var style = document.body.style;
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+ if (name in style) return name;
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+
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+ var i = cssPrefixes.length,
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+ capName = name.charAt(0).toUpperCase() + name.slice(1),
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+ vendorName;
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+ while (i--) {
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+ vendorName = cssPrefixes[i] + capName;
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+ if (vendorName in style) return vendorName;
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+ }
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+
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+ return name;
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+ }
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+
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+ function getStyleProp(name) {
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+ name = camelCase(name);
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+ return cssProps[name] || (cssProps[name] = getVendorProp(name));
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+ }
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+
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+ function applyCss(element, prop, value) {
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+ prop = getStyleProp(prop);
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+ element.style[prop] = value;
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+ }
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+
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+ return function(element, properties) {
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+ var args = arguments,
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+ prop,
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+ value;
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+
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+ if (args.length == 2) {
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+ for (prop in properties) {
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+ value = properties[prop];
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+ if (value !== undefined && properties.hasOwnProperty(prop)) applyCss(element, prop, value);
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+ }
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+ } else {
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+ applyCss(element, args[1], args[2]);
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+ }
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+ }
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+ })();
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+
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+ /**
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+ * (Internal) Determines if an element or space separated list of class names contains a class name.
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+ */
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+
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+ function hasClass(element, name) {
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+ var list = typeof element == 'string' ? element : classList(element);
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+ return list.indexOf(' ' + name + ' ') >= 0;
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+ }
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+
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+ /**
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+ * (Internal) Adds a class to an element.
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+ */
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+
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+ function addClass(element, name) {
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+ var oldList = classList(element),
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+ newList = oldList + name;
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+
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+ if (hasClass(oldList, name)) return;
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+
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+ // Trim the opening space.
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+ element.className = newList.substring(1);
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+ }
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+
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+ /**
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+ * (Internal) Removes a class from an element.
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+ */
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+
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+ function removeClass(element, name) {
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+ var oldList = classList(element),
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+ newList;
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+
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+ if (!hasClass(element, name)) return;
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+
|
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+ // Replace the class name.
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+ newList = oldList.replace(' ' + name + ' ', ' ');
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+
|
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+ // Trim the opening and closing spaces.
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+ element.className = newList.substring(1, newList.length - 1);
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * (Internal) Gets a space separated list of the class names on the element.
|
|
|
+ * The list is wrapped with a single space on each end to facilitate finding
|
|
|
+ * matches within the list.
|
|
|
+ */
|
|
|
+
|
|
|
+ function classList(element) {
|
|
|
+ return (' ' + (element && element.className || '') + ' ').replace(/\s+/gi, ' ');
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * (Internal) Removes an element from the DOM.
|
|
|
+ */
|
|
|
+
|
|
|
+ function removeElement(element) {
|
|
|
+ element && element.parentNode && element.parentNode.removeChild(element);
|
|
|
+ }
|
|
|
+
|
|
|
+ return NProgress;
|
|
|
+});
|
