Initial commit

node_modules/react-style-singleton/dist/es5/singleton.js

@@ -0,0 +1,52 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.stylesheetSingleton = void 0;
+var get_nonce_1 = require("get-nonce");
+function makeStyleTag() {
+    if (!document)
+        return null;
+    var tag = document.createElement('style');
+    tag.type = 'text/css';
+    var nonce = (0, get_nonce_1.getNonce)();
+    if (nonce) {
+        tag.setAttribute('nonce', nonce);
+    }
+    return tag;
+}
+function injectStyles(tag, css) {
+    // @ts-ignore
+    if (tag.styleSheet) {
+        // @ts-ignore
+        tag.styleSheet.cssText = css;
+    }
+    else {
+        tag.appendChild(document.createTextNode(css));
+    }
+}
+function insertStyleTag(tag) {
+    var head = document.head || document.getElementsByTagName('head')[0];
+    head.appendChild(tag);
+}
+var stylesheetSingleton = function () {
+    var counter = 0;
+    var stylesheet = null;
+    return {
+        add: function (style) {
+            if (counter == 0) {
+                if ((stylesheet = makeStyleTag())) {
+                    injectStyles(stylesheet, style);
+                    insertStyleTag(stylesheet);
+                }
+            }
+            counter++;
+        },
+        remove: function () {
+            counter--;
+            if (!counter && stylesheet) {
+                stylesheet.parentNode && stylesheet.parentNode.removeChild(stylesheet);
+                stylesheet = null;
+            }
+        },
+    };
+};
+exports.stylesheetSingleton = stylesheetSingleton;