Initial commit

wwwroot/lib/popper.js/esm/utils/computeOffsets.js

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+import getBasePlacement from "./getBasePlacement.js";
+import getVariation from "./getVariation.js";
+import getMainAxisFromPlacement from "./getMainAxisFromPlacement.js";
+import { top, right, bottom, left, start, end } from "../enums.js";
+export default function computeOffsets(_ref) {
+  var reference = _ref.reference,
+      element = _ref.element,
+      placement = _ref.placement;
+  var basePlacement = placement ? getBasePlacement(placement) : null;
+  var variation = placement ? getVariation(placement) : null;
+  var commonX = reference.x + reference.width / 2 - element.width / 2;
+  var commonY = reference.y + reference.height / 2 - element.height / 2;
+  var offsets;
+
+  switch (basePlacement) {
+    case top:
+      offsets = {
+        x: commonX,
+        y: reference.y - element.height
+      };
+      break;
+
+    case bottom:
+      offsets = {
+        x: commonX,
+        y: reference.y + reference.height
+      };
+      break;
+
+    case right:
+      offsets = {
+        x: reference.x + reference.width,
+        y: commonY
+      };
+      break;
+
+    case left:
+      offsets = {
+        x: reference.x - element.width,
+        y: commonY
+      };
+      break;
+
+    default:
+      offsets = {
+        x: reference.x,
+        y: reference.y
+      };
+  }
+
+  var mainAxis = basePlacement ? getMainAxisFromPlacement(basePlacement) : null;
+
+  if (mainAxis != null) {
+    var len = mainAxis === 'y' ? 'height' : 'width';
+
+    switch (variation) {
+      case start:
+        offsets[mainAxis] = offsets[mainAxis] - (reference[len] / 2 - element[len] / 2);
+        break;
+
+      case end:
+        offsets[mainAxis] = offsets[mainAxis] + (reference[len] / 2 - element[len] / 2);
+        break;
+
+      default:
+    }
+  }
+
+  return offsets;
+}