mirror of
https://github.com/ueberdosis/tiptap.git
synced 2024-12-16 19:57:48 +08:00
81 lines
2.2 KiB
JavaScript
81 lines
2.2 KiB
JavaScript
;(function(window, document) {
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'use strict';
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var isSvg = document.createElementNS && document.createElementNS( 'http://www.w3.org/2000/svg', 'svg' ).createSVGRect;
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var localStorage = 'localStorage' in window && window['localStorage'] !== null ? window.localStorage : false;
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function svgSpriteInjector(source, opts) {
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var file;
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opts = opts || {};
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if (source instanceof Node) {
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file = source.getAttribute('data-svg-sprite');
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opts.revision = source.getAttribute('data-svg-sprite-revision') || opts.revision;
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} else if (typeof source === 'string') {
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file = source;
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}
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if (isSvg) {
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if (file) {
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injector(file, opts);
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} else {
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console.error('svg-sprite-injector: undefined sprite filename!');
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}
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} else {
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console.error('svg-sprite-injector require ie9 or greater!');
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}
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};
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function injector(filepath, opts) {
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var name = 'injectedSVGSprite' + filepath,
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revision = opts.revision,
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request;
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// localStorage cache
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if (revision !== undefined && localStorage && localStorage[name + 'Rev'] == revision) {
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return injectOnLoad(localStorage[name]);
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}
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// Async load
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request = new XMLHttpRequest();
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request.open('GET', filepath, true);
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request.onreadystatechange = function (e) {
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var data;
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if (request.readyState === 4 && request.status >= 200 && request.status < 400) {
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injectOnLoad(data = request.responseText);
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if (revision !== undefined && localStorage) {
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localStorage[name] = data;
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localStorage[name + 'Rev'] = revision;
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}
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}
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};
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request.send();
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}
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function injectOnLoad(data) {
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if (data) {
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if (document.body) {
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injectData(data);
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} else {
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document.addEventListener('DOMContentLoaded', injectData.bind(null, data));
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}
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}
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}
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function injectData(data) {
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var body = document.body;
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body.insertAdjacentHTML('afterbegin', data);
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if (body.firstChild.tagName === 'svg') {
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body.firstChild.style.display = 'none';
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}
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}
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if (typeof exports === 'object') {
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module.exports = svgSpriteInjector;
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} else {
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window.svgSpriteInjector = svgSpriteInjector;
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}
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} (window, document));
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