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framer-motion

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A simple and powerful JavaScript animation library

github.com/motiondivision/motion

motiondivision/motion

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{"version":3,"file":"offset-to-range.mjs","sources":["../../../../../../src/render/dom/scroll/utils/offset-to-range.ts"],"sourcesContent":["import { ScrollOffset as ScrollOffsetPresets } from \"../offsets/presets\"\nimport { ProgressIntersection, ScrollOffset } from \"../types\"\n\ninterface ViewTimelineRange {\n rangeStart: string\n rangeEnd: string\n}\n\n/**\n * Maps from ProgressIntersection pairs used by Motion's preset offsets to\n * ViewTimeline named ranges. Returns undefined for unrecognised patterns,\n * which signals the caller to fall back to JS-based scroll tracking.\n */\nconst presets: [ProgressIntersection[], string][] = [\n [ScrollOffsetPresets.Enter, \"entry\"],\n [ScrollOffsetPresets.Exit, \"exit\"],\n [ScrollOffsetPresets.Any, \"cover\"],\n [ScrollOffsetPresets.All, \"contain\"],\n]\n\nfunction matchesPreset(\n offset: ScrollOffset,\n preset: ProgressIntersection[]\n): boolean {\n if (offset.length !== 2) return false\n\n for (let i = 0; i < 2; i++) {\n const o = offset[i]\n const p = preset[i]\n if (\n !Array.isArray(o) ||\n o.length !== 2 ||\n o[0] !== p[0] ||\n o[1] !== p[1]\n )\n return false\n }\n return true\n}\n\nexport function offsetToViewTimelineRange(\n offset?: ScrollOffset\n): ViewTimelineRange | undefined {\n if (!offset) {\n return { rangeStart: \"contain 0%\", rangeEnd: \"contain 100%\" }\n }\n\n for (const [preset, name] of presets) {\n if (matchesPreset(offset, preset)) {\n return { rangeStart: `${name} 0%`, rangeEnd: `${name} 100%` }\n }\n }\n\n return undefined\n}\n"],"names":["ScrollOffsetPresets"],"mappings":";;AAQA;;;;AAIG;AACH,MAAM,OAAO,GAAuC;AAChD,IAAA,CAACA,YAAmB,CAAC,KAAK,EAAE,OAAO,CAAC;AACpC,IAAA,CAACA,YAAmB,CAAC,IAAI,EAAE,MAAM,CAAC;AAClC,IAAA,CAACA,YAAmB,CAAC,GAAG,EAAE,OAAO,CAAC;AAClC,IAAA,CAACA,YAAmB,CAAC,GAAG,EAAE,SAAS,CAAC;CACvC;AAED,SAAS,aAAa,CAClB,MAAoB,EACpB,MAA8B,EAAA;AAE9B,IAAA,IAAI,MAAM,CAAC,MAAM,KAAK,CAAC;AAAE,QAAA,OAAO,KAAK;AAErC,IAAA,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,EAAE,CAAC,EAAE,EAAE;AACxB,QAAA,MAAM,CAAC,GAAG,MAAM,CAAC,CAAC,CAAC;AACnB,QAAA,MAAM,CAAC,GAAG,MAAM,CAAC,CAAC,CAAC;AACnB,QAAA,IACI,CAAC,KAAK,CAAC,OAAO,CAAC,CAAC,CAAC;YACjB,CAAC,CAAC,MAAM,KAAK,CAAC;AACd,YAAA,CAAC,CAAC,CAAC,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;AACb,YAAA,CAAC,CAAC,CAAC,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;AAEb,YAAA,OAAO,KAAK;IACpB;AACA,IAAA,OAAO,IAAI;AACf;AAEM,SAAU,yBAAyB,CACrC,MAAqB,EAAA;IAErB,IAAI,CAAC,MAAM,EAAE;QACT,OAAO,EAAE,UAAU,EAAE,YAAY,EAAE,QAAQ,EAAE,cAAc,EAAE;IACjE;IAEA,KAAK,MAAM,CAAC,MAAM,EAAE,IAAI,CAAC,IAAI,OAAO,EAAE;AAClC,QAAA,IAAI,aAAa,CAAC,MAAM,EAAE,MAAM,CAAC,EAAE;AAC/B,YAAA,OAAO,EAAE,UAAU,EAAE,CAAA,EAAG,IAAI,CAAA,GAAA,CAAK,EAAE,QAAQ,EAAE,CAAA,EAAG,IAAI,CAAA,KAAA,CAAO,EAAE;QACjE;IACJ;AAEA,IAAA,OAAO,SAAS;AACpB;;;;"}