| 1 | "use strict";
|
|---|
| 2 | Object.defineProperty(exports, "__esModule", { value: true });
|
|---|
| 3 | var tslib_1 = require("tslib");
|
|---|
| 4 | var utils = tslib_1.__importStar(require("./utils"));
|
|---|
| 5 | exports.default = {
|
|---|
| 6 | createCSS: function (document, styles, sheet) {
|
|---|
| 7 | // Strip the query-string
|
|---|
| 8 | var href = sheet.href || '';
|
|---|
| 9 | // If there is no title set, use the filename, minus the extension
|
|---|
| 10 | var id = "less:" + (sheet.title || utils.extractId(href));
|
|---|
| 11 | // If this has already been inserted into the DOM, we may need to replace it
|
|---|
| 12 | var oldStyleNode = document.getElementById(id);
|
|---|
| 13 | var keepOldStyleNode = false;
|
|---|
| 14 | // Create a new stylesheet node for insertion or (if necessary) replacement
|
|---|
| 15 | var styleNode = document.createElement('style');
|
|---|
| 16 | styleNode.setAttribute('type', 'text/css');
|
|---|
| 17 | if (sheet.media) {
|
|---|
| 18 | styleNode.setAttribute('media', sheet.media);
|
|---|
| 19 | }
|
|---|
| 20 | styleNode.id = id;
|
|---|
| 21 | if (!styleNode.styleSheet) {
|
|---|
| 22 | styleNode.appendChild(document.createTextNode(styles));
|
|---|
| 23 | // If new contents match contents of oldStyleNode, don't replace oldStyleNode
|
|---|
| 24 | keepOldStyleNode = (oldStyleNode !== null && oldStyleNode.childNodes.length > 0 && styleNode.childNodes.length > 0 &&
|
|---|
| 25 | oldStyleNode.firstChild.nodeValue === styleNode.firstChild.nodeValue);
|
|---|
| 26 | }
|
|---|
| 27 | var head = document.getElementsByTagName('head')[0];
|
|---|
| 28 | // If there is no oldStyleNode, just append; otherwise, only append if we need
|
|---|
| 29 | // to replace oldStyleNode with an updated stylesheet
|
|---|
| 30 | if (oldStyleNode === null || keepOldStyleNode === false) {
|
|---|
| 31 | var nextEl = sheet && sheet.nextSibling || null;
|
|---|
| 32 | if (nextEl) {
|
|---|
| 33 | nextEl.parentNode.insertBefore(styleNode, nextEl);
|
|---|
| 34 | }
|
|---|
| 35 | else {
|
|---|
| 36 | head.appendChild(styleNode);
|
|---|
| 37 | }
|
|---|
| 38 | }
|
|---|
| 39 | if (oldStyleNode && keepOldStyleNode === false) {
|
|---|
| 40 | oldStyleNode.parentNode.removeChild(oldStyleNode);
|
|---|
| 41 | }
|
|---|
| 42 | // For IE.
|
|---|
| 43 | // This needs to happen *after* the style element is added to the DOM, otherwise IE 7 and 8 may crash.
|
|---|
| 44 | // See http://social.msdn.microsoft.com/Forums/en-US/7e081b65-878a-4c22-8e68-c10d39c2ed32/internet-explorer-crashes-appending-style-element-to-head
|
|---|
| 45 | if (styleNode.styleSheet) {
|
|---|
| 46 | try {
|
|---|
| 47 | styleNode.styleSheet.cssText = styles;
|
|---|
| 48 | }
|
|---|
| 49 | catch (e) {
|
|---|
| 50 | throw new Error('Couldn\'t reassign styleSheet.cssText.');
|
|---|
| 51 | }
|
|---|
| 52 | }
|
|---|
| 53 | },
|
|---|
| 54 | currentScript: function (window) {
|
|---|
| 55 | var document = window.document;
|
|---|
| 56 | return document.currentScript || (function () {
|
|---|
| 57 | var scripts = document.getElementsByTagName('script');
|
|---|
| 58 | return scripts[scripts.length - 1];
|
|---|
| 59 | })();
|
|---|
| 60 | }
|
|---|
| 61 | };
|
|---|
| 62 | //# sourceMappingURL=browser.js.map |
|---|
