Jesus sucks

backend/frontend/node_modules/react-bootstrap/esm/BootstrapModalManager.js

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+import addClass from 'dom-helpers/addClass';
+import css from 'dom-helpers/css';
+import qsa from 'dom-helpers/querySelectorAll';
+import removeClass from 'dom-helpers/removeClass';
+import ModalManager from '@restart/ui/ModalManager';
+const Selector = {
+  FIXED_CONTENT: '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top',
+  STICKY_CONTENT: '.sticky-top',
+  NAVBAR_TOGGLER: '.navbar-toggler'
+};
+class BootstrapModalManager extends ModalManager {
+  adjustAndStore(prop, element, adjust) {
+    const actual = element.style[prop];
+    // TODO: DOMStringMap and CSSStyleDeclaration aren't strictly compatible
+    // @ts-ignore
+    element.dataset[prop] = actual;
+    css(element, {
+      [prop]: `${parseFloat(css(element, prop)) + adjust}px`
+    });
+  }
+  restore(prop, element) {
+    const value = element.dataset[prop];
+    if (value !== undefined) {
+      delete element.dataset[prop];
+      css(element, {
+        [prop]: value
+      });
+    }
+  }
+  setContainerStyle(containerState) {
+    super.setContainerStyle(containerState);
+    const container = this.getElement();
+    addClass(container, 'modal-open');
+    if (!containerState.scrollBarWidth) return;
+    const paddingProp = this.isRTL ? 'paddingLeft' : 'paddingRight';
+    const marginProp = this.isRTL ? 'marginLeft' : 'marginRight';
+    qsa(container, Selector.FIXED_CONTENT).forEach(el => this.adjustAndStore(paddingProp, el, containerState.scrollBarWidth));
+    qsa(container, Selector.STICKY_CONTENT).forEach(el => this.adjustAndStore(marginProp, el, -containerState.scrollBarWidth));
+    qsa(container, Selector.NAVBAR_TOGGLER).forEach(el => this.adjustAndStore(marginProp, el, containerState.scrollBarWidth));
+  }
+  removeContainerStyle(containerState) {
+    super.removeContainerStyle(containerState);
+    const container = this.getElement();
+    removeClass(container, 'modal-open');
+    const paddingProp = this.isRTL ? 'paddingLeft' : 'paddingRight';
+    const marginProp = this.isRTL ? 'marginLeft' : 'marginRight';
+    qsa(container, Selector.FIXED_CONTENT).forEach(el => this.restore(paddingProp, el));
+    qsa(container, Selector.STICKY_CONTENT).forEach(el => this.restore(marginProp, el));
+    qsa(container, Selector.NAVBAR_TOGGLER).forEach(el => this.restore(marginProp, el));
+  }
+}
+let sharedManager;
+export function getSharedManager(options) {
+  if (!sharedManager) sharedManager = new BootstrapModalManager(options);
+  return sharedManager;
+}
+export default BootstrapModalManager;