{"version":3,"file":"popper.min.js","sources":["../src/utils/isNative.js","../src/utils/debounce.js","../src/utils/isFunction.js","../src/utils/getStyleComputedProperty.js","../src/utils/getParentNode.js","../src/utils/getScrollParent.js","../src/utils/getOffsetParent.js","../src/utils/isOffsetContainer.js","../src/utils/getRoot.js","../src/utils/findCommonOffsetParent.js","../src/utils/getScroll.js","../src/utils/includeScroll.js","../src/utils/getBordersSize.js","../src/utils/isIE10.js","../src/utils/getWindowSizes.js","../src/utils/getClientRect.js","../src/utils/getBoundingClientRect.js","../src/utils/getOffsetRectRelativeToArbitraryNode.js","../src/utils/getViewportOffsetRectRelativeToArtbitraryNode.js","../src/utils/isFixed.js","../src/utils/getBoundaries.js","../src/utils/computeAutoPlacement.js","../src/utils/getReferenceOffsets.js","../src/utils/getOuterSizes.js","../src/utils/getOppositePlacement.js","../src/utils/getPopperOffsets.js","../src/utils/find.js","../src/utils/findIndex.js","../src/utils/runModifiers.js","../src/methods/update.js","../src/utils/isModifierEnabled.js","../src/utils/getSupportedPropertyName.js","../src/methods/destroy.js","../src/utils/setupEventListeners.js","../src/methods/enableEventListeners.js","../src/utils/removeEventListeners.js","../src/methods/disableEventListeners.js","../src/utils/isNumeric.js","../src/utils/setStyles.js","../src/utils/setAttributes.js","../src/modifiers/applyStyle.js","../src/modifiers/computeStyle.js","../src/utils/isModifierRequired.js","../src/modifiers/arrow.js","../src/utils/getOppositeVariation.js","../src/methods/placements.js","../src/utils/clockwise.js","../src/modifiers/flip.js","../src/modifiers/keepTogether.js","../src/modifiers/offset.js","../src/modifiers/preventOverflow.js","../src/modifiers/shift.js","../src/modifiers/hide.js","../src/modifiers/inner.js","../src/modifiers/index.js","../src/methods/defaults.js","../src/index.js"],"sourcesContent":["const nativeHints = [\n 'native code',\n '[object MutationObserverConstructor]', // for mobile safari iOS 9.0\n];\n\n/**\n * Determine if a function is implemented natively (as opposed to a polyfill).\n * @method\n * @memberof Popper.Utils\n * @argument {Function | undefined} fn the function to check\n * @returns {Boolean}\n */\nexport default fn =>\n nativeHints.some(hint => (fn || '').toString().indexOf(hint) > -1);\n","import isNative from './isNative';\n\nconst isBrowser = typeof window !== 'undefined';\nconst longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox'];\nlet timeoutDuration = 0;\nfor (let i = 0; i < longerTimeoutBrowsers.length; i += 1) {\n if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) {\n timeoutDuration = 1;\n break;\n }\n}\n\nexport function microtaskDebounce(fn) {\n let scheduled = false;\n let i = 0;\n const elem = document.createElement('span');\n\n // MutationObserver provides a mechanism for scheduling microtasks, which\n // are scheduled *before* the next task. This gives us a way to debounce\n // a function but ensure it's called *before* the next paint.\n const observer = new MutationObserver(() => {\n fn();\n scheduled = false;\n });\n\n observer.observe(elem, { attributes: true });\n\n return () => {\n if (!scheduled) {\n scheduled = true;\n elem.setAttribute('x-index', i);\n i = i + 1; // don't use compund (+=) because it doesn't get optimized in V8\n }\n };\n}\n\nexport function taskDebounce(fn) {\n let scheduled = false;\n return () => {\n if (!scheduled) {\n scheduled = true;\n setTimeout(() => {\n scheduled = false;\n fn();\n }, timeoutDuration);\n }\n };\n}\n\n// It's common for MutationObserver polyfills to be seen in the wild, however\n// these rely on Mutation Events which only occur when an element is connected\n// to the DOM. The algorithm used in this module does not use a connected element,\n// and so we must ensure that a *native* MutationObserver is available.\nconst supportsNativeMutationObserver =\n isBrowser && isNative(window.Mutatio
