Initial commit

wwwroot/lib/popper.js/esm/modifiers/preventOverflow.js

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+import { top, left, right, bottom, start } from "../enums.js";
+import getBasePlacement from "../utils/getBasePlacement.js";
+import getMainAxisFromPlacement from "../utils/getMainAxisFromPlacement.js";
+import getAltAxis from "../utils/getAltAxis.js";
+import { within, withinMaxClamp } from "../utils/within.js";
+import getLayoutRect from "../dom-utils/getLayoutRect.js";
+import getOffsetParent from "../dom-utils/getOffsetParent.js";
+import detectOverflow from "../utils/detectOverflow.js";
+import getVariation from "../utils/getVariation.js";
+import getFreshSideObject from "../utils/getFreshSideObject.js";
+import { min as mathMin, max as mathMax } from "../utils/math.js";
+
+function preventOverflow(_ref) {
+  var state = _ref.state,
+      options = _ref.options,
+      name = _ref.name;
+  var _options$mainAxis = options.mainAxis,
+      checkMainAxis = _options$mainAxis === void 0 ? true : _options$mainAxis,
+      _options$altAxis = options.altAxis,
+      checkAltAxis = _options$altAxis === void 0 ? false : _options$altAxis,
+      boundary = options.boundary,
+      rootBoundary = options.rootBoundary,
+      altBoundary = options.altBoundary,
+      padding = options.padding,
+      _options$tether = options.tether,
+      tether = _options$tether === void 0 ? true : _options$tether,
+      _options$tetherOffset = options.tetherOffset,
+      tetherOffset = _options$tetherOffset === void 0 ? 0 : _options$tetherOffset;
+  var overflow = detectOverflow(state, {
+    boundary: boundary,
+    rootBoundary: rootBoundary,
+    padding: padding,
+    altBoundary: altBoundary
+  });
+  var basePlacement = getBasePlacement(state.placement);
+  var variation = getVariation(state.placement);
+  var isBasePlacement = !variation;
+  var mainAxis = getMainAxisFromPlacement(basePlacement);
+  var altAxis = getAltAxis(mainAxis);
+  var popperOffsets = state.modifiersData.popperOffsets;
+  var referenceRect = state.rects.reference;
+  var popperRect = state.rects.popper;
+  var tetherOffsetValue = typeof tetherOffset === 'function' ? tetherOffset(Object.assign({}, state.rects, {
+    placement: state.placement
+  })) : tetherOffset;
+  var normalizedTetherOffsetValue = typeof tetherOffsetValue === 'number' ? {
+    mainAxis: tetherOffsetValue,
+    altAxis: tetherOffsetValue
+  } : Object.assign({
+    mainAxis: 0,
+    altAxis: 0
+  }, tetherOffsetValue);
+  var offsetModifierState = state.modifiersData.offset ? state.modifiersData.offset[state.placement] : null;
+  var data = {
+    x: 0,
+    y: 0
+  };
+
+  if (!popperOffsets) {
+    return;
+  }
+
+  if (checkMainAxis) {
+    var _offsetModifierState$;
+
+    var mainSide = mainAxis === 'y' ? top : left;
+    var altSide = mainAxis === 'y' ? bottom : right;
+    var len = mainAxis === 'y' ? 'height' : 'width';
+    var offset = popperOffsets[mainAxis];
+    var min = offset + overflow[mainSide];
+    var max = offset - overflow[altSide];
+    var additive = tether ? -popperRect[len] / 2 : 0;
+    var minLen = variation === start ? referenceRect[len] : popperRect[len];
+    var maxLen = variation === start ? -popperRect[len] : -referenceRect[len]; // We need to include the arrow in the calculation so the arrow doesn't go
+    // outside the reference bounds
+
+    var arrowElement = state.elements.arrow;
+    var arrowRect = tether && arrowElement ? getLayoutRect(arrowElement) : {
+      width: 0,
+      height: 0
+    };
+    var arrowPaddingObject = state.modifiersData['arrow#persistent'] ? state.modifiersData['arrow#persistent'].padding : getFreshSideObject();
+    var arrowPaddingMin = arrowPaddingObject[mainSide];
+    var arrowPaddingMax = arrowPaddingObject[altSide]; // If the reference length is smaller than the arrow length, we don't want
+    // to include its full size in the calculation. If the reference is small
+    // and near the edge of a boundary, the popper can overflow even if the
+    // reference is not overflowing as well (e.g. virtual elements with no
+    // width or height)
+
+    var arrowLen = within(0, referenceRect[len], arrowRect[len]);
+    var minOffset = isBasePlacement ? referenceRect[len] / 2 - additive - arrowLen - arrowPaddingMin - normalizedTetherOffsetValue.mainAxis : minLen - arrowLen - arrowPaddingMin - normalizedTetherOffsetValue.mainAxis;
+    var maxOffset = isBasePlacement ? -referenceRect[len] / 2 + additive + arrowLen + arrowPaddingMax + normalizedTetherOffsetValue.mainAxis : maxLen + arrowLen + arrowPaddingMax + normalizedTetherOffsetValue.mainAxis;
+    var arrowOffsetParent = state.elements.arrow && getOffsetParent(state.elements.arrow);
+    var clientOffset = arrowOffsetParent ? mainAxis === 'y' ? arrowOffsetParent.clientTop || 0 : arrowOffsetParent.clientLeft || 0 : 0;
+    var offsetModifierValue = (_offsetModifierState$ = offsetModifierState == null ? void 0 : offsetModifierState[mainAxis]) != null ? _offsetModifierState$ : 0;
+    var tetherMin = offset + minOffset - offsetModifierValue - clientOffset;
+    var tetherMax = offset + maxOffset - offsetModifierValue;
+    var preventedOffset = within(tether ? mathMin(min, tetherMin) : min, offset, tether ? mathMax(max, tetherMax) : max);
+    popperOffsets[mainAxis] = preventedOffset;
+    data[mainAxis] = preventedOffset - offset;
+  }
+
+  if (checkAltAxis) {
+    var _offsetModifierState$2;
+
+    var _mainSide = mainAxis === 'x' ? top : left;
+
+    var _altSide = mainAxis === 'x' ? bottom : right;
+
+    var _offset = popperOffsets[altAxis];
+
+    var _len = altAxis === 'y' ? 'height' : 'width';
+
+    var _min = _offset + overflow[_mainSide];
+
+    var _max = _offset - overflow[_altSide];
+
+    var isOriginSide = [top, left].indexOf(basePlacement) !== -1;
+
+    var _offsetModifierValue = (_offsetModifierState$2 = offsetModifierState == null ? void 0 : offsetModifierState[altAxis]) != null ? _offsetModifierState$2 : 0;
+
+    var _tetherMin = isOriginSide ? _min : _offset - referenceRect[_len] - popperRect[_len] - _offsetModifierValue + normalizedTetherOffsetValue.altAxis;
+
+    var _tetherMax = isOriginSide ? _offset + referenceRect[_len] + popperRect[_len] - _offsetModifierValue - normalizedTetherOffsetValue.altAxis : _max;
+
+    var _preventedOffset = tether && isOriginSide ? withinMaxClamp(_tetherMin, _offset, _tetherMax) : within(tether ? _tetherMin : _min, _offset, tether ? _tetherMax : _max);
+
+    popperOffsets[altAxis] = _preventedOffset;
+    data[altAxis] = _preventedOffset - _offset;
+  }
+
+  state.modifiersData[name] = data;
+} // eslint-disable-next-line import/no-unused-modules
+
+
+export default {
+  name: 'preventOverflow',
+  enabled: true,
+  phase: 'main',
+  fn: preventOverflow,
+  requiresIfExists: ['offset']
+};