{
  "version": 3,
  "sources": ["../../../src/lib/utils/normalizeWheel.ts"],
  "sourcesContent": ["import { tlenv } from '../globals/environment'\n\nconst MAX_ZOOM_STEP = 10\n\n/**\n * Normalizes a wheel event, so that the delta values are consistent across different browsers or devices. Adapted from https://stackoverflow.com/a/13650579.\n * @param event - The wheel event to normalize.\n * @returns The normalized wheel event.\n * @internal */\nexport function normalizeWheel(event: WheelEvent | React.WheelEvent<HTMLElement>) {\n\tlet { deltaY, deltaX } = event\n\tlet deltaZ = 0\n\n\t// wheeling\n\tif (event.ctrlKey || event.altKey || event.metaKey) {\n\t\tdeltaZ = (Math.abs(deltaY) > MAX_ZOOM_STEP ? MAX_ZOOM_STEP * Math.sign(deltaY) : deltaY) / 100\n\t} else {\n\t\tif (event.shiftKey && !tlenv.isDarwin && !tlenv.isIos) {\n\t\t\tdeltaX = deltaY\n\t\t\tdeltaY = 0\n\t\t}\n\t}\n\n\treturn { x: -deltaX, y: -deltaY, z: -deltaZ }\n}\n"],
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