1 files changed, 63 insertions, 0 deletions
diff --git a/popperjs/package/dist/esm/utils/detectOverflow.js b/popperjs/package/dist/esm/utils/detectOverflow.js
new file mode 100644
index 0000000..493b8f9
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+++ b/popperjs/package/dist/esm/utils/detectOverflow.js
@@ -0,0 +1,63 @@
+import getClippingRect from "../dom-utils/getClippingRect.js";
+import getDocumentElement from "../dom-utils/getDocumentElement.js";
+import getBoundingClientRect from "../dom-utils/getBoundingClientRect.js";
+import computeOffsets from "./computeOffsets.js";
+import rectToClientRect from "./rectToClientRect.js";
+import { clippingParents, reference, popper, bottom, top, right, basePlacements, viewport } from "../enums.js";
+import { isElement } from "../dom-utils/instanceOf.js";
+import mergePaddingObject from "./mergePaddingObject.js";
+import expandToHashMap from "./expandToHashMap.js"; // eslint-disable-next-line import/no-unused-modules
+
+export default function detectOverflow(state, options) {
+  if (options === void 0) {
+    options = {};
+  }
+
+  var _options = options,
+      _options$placement = _options.placement,
+      placement = _options$placement === void 0 ? state.placement : _options$placement,
+      _options$boundary = _options.boundary,
+      boundary = _options$boundary === void 0 ? clippingParents : _options$boundary,
+      _options$rootBoundary = _options.rootBoundary,
+      rootBoundary = _options$rootBoundary === void 0 ? viewport : _options$rootBoundary,
+      _options$elementConte = _options.elementContext,
+      elementContext = _options$elementConte === void 0 ? popper : _options$elementConte,
+      _options$altBoundary = _options.altBoundary,
+      altBoundary = _options$altBoundary === void 0 ? false : _options$altBoundary,
+      _options$padding = _options.padding,
+      padding = _options$padding === void 0 ? 0 : _options$padding;
+  var paddingObject = mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements));
+  var altContext = elementContext === popper ? reference : popper;
+  var popperRect = state.rects.popper;
+  var element = state.elements[altBoundary ? altContext : elementContext];
+  var clippingClientRect = getClippingRect(isElement(element) ? element : element.contextElement || getDocumentElement(state.elements.popper), boundary, rootBoundary);
+  var referenceClientRect = getBoundingClientRect(state.elements.reference);
+  var popperOffsets = computeOffsets({
+    reference: referenceClientRect,
+    element: popperRect,
+    strategy: 'absolute',
+    placement: placement
+  });
+  var popperClientRect = rectToClientRect(Object.assign({}, popperRect, popperOffsets));
+  var elementClientRect = elementContext === popper ? popperClientRect : referenceClientRect; // positive = overflowing the clipping rect
+  // 0 or negative = within the clipping rect
+
+  var overflowOffsets = {
+    top: clippingClientRect.top - elementClientRect.top + paddingObject.top,
+    bottom: elementClientRect.bottom - clippingClientRect.bottom + paddingObject.bottom,
+    left: clippingClientRect.left - elementClientRect.left + paddingObject.left,
+    right: elementClientRect.right - clippingClientRect.right + paddingObject.right
+  };
+  var offsetData = state.modifiersData.offset; // Offsets can be applied only to the popper element
+
+  if (elementContext === popper && offsetData) {
+    var offset = offsetData[placement];
+    Object.keys(overflowOffsets).forEach(function (key) {
+      var multiply = [right, bottom].indexOf(key) >= 0 ? 1 : -1;
+      var axis = [top, bottom].indexOf(key) >= 0 ? 'y' : 'x';
+      overflowOffsets[key] += offset[axis] * multiply;
+    });
+  }
+
+  return overflowOffsets;
+}
+\ No newline at end of file