62 lines
2.8 KiB
JavaScript
62 lines
2.8 KiB
JavaScript
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
var tslib_1 = require("tslib");
|
|
var utils = tslib_1.__importStar(require("./utils"));
|
|
exports.default = {
|
|
createCSS: function (document, styles, sheet) {
|
|
// Strip the query-string
|
|
var href = sheet.href || '';
|
|
// If there is no title set, use the filename, minus the extension
|
|
var id = "less:" + (sheet.title || utils.extractId(href));
|
|
// If this has already been inserted into the DOM, we may need to replace it
|
|
var oldStyleNode = document.getElementById(id);
|
|
var keepOldStyleNode = false;
|
|
// Create a new stylesheet node for insertion or (if necessary) replacement
|
|
var styleNode = document.createElement('style');
|
|
styleNode.setAttribute('type', 'text/css');
|
|
if (sheet.media) {
|
|
styleNode.setAttribute('media', sheet.media);
|
|
}
|
|
styleNode.id = id;
|
|
if (!styleNode.styleSheet) {
|
|
styleNode.appendChild(document.createTextNode(styles));
|
|
// If new contents match contents of oldStyleNode, don't replace oldStyleNode
|
|
keepOldStyleNode = (oldStyleNode !== null && oldStyleNode.childNodes.length > 0 && styleNode.childNodes.length > 0 &&
|
|
oldStyleNode.firstChild.nodeValue === styleNode.firstChild.nodeValue);
|
|
}
|
|
var head = document.getElementsByTagName('head')[0];
|
|
// If there is no oldStyleNode, just append; otherwise, only append if we need
|
|
// to replace oldStyleNode with an updated stylesheet
|
|
if (oldStyleNode === null || keepOldStyleNode === false) {
|
|
var nextEl = sheet && sheet.nextSibling || null;
|
|
if (nextEl) {
|
|
nextEl.parentNode.insertBefore(styleNode, nextEl);
|
|
}
|
|
else {
|
|
head.appendChild(styleNode);
|
|
}
|
|
}
|
|
if (oldStyleNode && keepOldStyleNode === false) {
|
|
oldStyleNode.parentNode.removeChild(oldStyleNode);
|
|
}
|
|
// For IE.
|
|
// This needs to happen *after* the style element is added to the DOM, otherwise IE 7 and 8 may crash.
|
|
// See http://social.msdn.microsoft.com/Forums/en-US/7e081b65-878a-4c22-8e68-c10d39c2ed32/internet-explorer-crashes-appending-style-element-to-head
|
|
if (styleNode.styleSheet) {
|
|
try {
|
|
styleNode.styleSheet.cssText = styles;
|
|
}
|
|
catch (e) {
|
|
throw new Error('Couldn\'t reassign styleSheet.cssText.');
|
|
}
|
|
}
|
|
},
|
|
currentScript: function (window) {
|
|
var document = window.document;
|
|
return document.currentScript || (function () {
|
|
var scripts = document.getElementsByTagName('script');
|
|
return scripts[scripts.length - 1];
|
|
})();
|
|
}
|
|
};
|
|
//# sourceMappingURL=browser.js.map
|