全局gif组件

gif-loading.js


(function(root, factory) {

    if (typeof define === 'function' && define.amd) {
        define(factory);
    } else if (typeof exports === 'object') {
        module.exports = factory();
    } else {
        root.GIFLoading = factory();
    }

})(this, function() {
    var GIFLoading = {};

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

使用

import GIFLoading from '../js/gif-loading'
// 请求拦截器

axios.interceptors.request.use(
  (config) => {
   isShowLoading && GIFLoading.start()
  })
  
  
  响应拦截器
axios.interceptors.response.use(
  (response) => {
    isShowLoading && GIFLoading.done()
  },(error) => {
    // 对响应错误做点什么
    // NProgress.done();
    GIFLoading.done()
    )

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