Installed some nugets

MVCUI/Scripts/src/utils/getBoundaries.js

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+import getScrollParent from './getScrollParent';
+import getParentNode from './getParentNode';
+import getReferenceNode from './getReferenceNode';
+import findCommonOffsetParent from './findCommonOffsetParent';
+import getOffsetRectRelativeToArbitraryNode from './getOffsetRectRelativeToArbitraryNode';
+import getViewportOffsetRectRelativeToArtbitraryNode from './getViewportOffsetRectRelativeToArtbitraryNode';
+import getWindowSizes from './getWindowSizes';
+import isFixed from './isFixed';
+import getFixedPositionOffsetParent from './getFixedPositionOffsetParent';
+
+/**
+ * Computed the boundaries limits and return them
+ * @method
+ * @memberof Popper.Utils
+ * @param {HTMLElement} popper
+ * @param {HTMLElement} reference
+ * @param {number} padding
+ * @param {HTMLElement} boundariesElement - Element used to define the boundaries
+ * @param {Boolean} fixedPosition - Is in fixed position mode
+ * @returns {Object} Coordinates of the boundaries
+ */
+export default function getBoundaries(
+  popper,
+  reference,
+  padding,
+  boundariesElement,
+  fixedPosition = false
+) {
+  // NOTE: 1 DOM access here
+
+  let boundaries = { top: 0, left: 0 };
+  const offsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, getReferenceNode(reference));
+
+  // Handle viewport case
+  if (boundariesElement === 'viewport' ) {
+    boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent, fixedPosition);
+  }
+
+  else {
+    // Handle other cases based on DOM element used as boundaries
+    let boundariesNode;
+    if (boundariesElement === 'scrollParent') {
+      boundariesNode = getScrollParent(getParentNode(reference));
+      if (boundariesNode.nodeName === 'BODY') {
+        boundariesNode = popper.ownerDocument.documentElement;
+      }
+    } else if (boundariesElement === 'window') {
+      boundariesNode = popper.ownerDocument.documentElement;
+    } else {
+      boundariesNode = boundariesElement;
+    }
+
+    const offsets = getOffsetRectRelativeToArbitraryNode(
+      boundariesNode,
+      offsetParent,
+      fixedPosition
+    );
+
+    // In case of HTML, we need a different computation
+    if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
+      const { height, width } = getWindowSizes(popper.ownerDocument);
+      boundaries.top += offsets.top - offsets.marginTop;
+      boundaries.bottom = height + offsets.top;
+      boundaries.left += offsets.left - offsets.marginLeft;
+      boundaries.right = width + offsets.left;
+    } else {
+      // for all the other DOM elements, this one is good
+      boundaries = offsets;
+    }
+  }
+
+  // Add paddings
+  padding = padding || 0;
+  const isPaddingNumber = typeof padding === 'number';
+  boundaries.left += isPaddingNumber ? padding : padding.left || 0; 
+  boundaries.top += isPaddingNumber ? padding : padding.top || 0; 
+  boundaries.right -= isPaddingNumber ? padding : padding.right || 0; 
+  boundaries.bottom -= isPaddingNumber ? padding : padding.bottom || 0; 
+
+  return boundaries;
+}