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16 KiB
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1 line
16 KiB
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{"ast":null,"code":"import { positionalKeys } from '../../render/utils/keys-position.mjs';\nimport { findDimensionValueType } from '../../value/types/dimensions.mjs';\nimport { getVariableValue } from '../utils/css-variables-conversion.mjs';\nimport { isCSSVariableToken } from '../utils/is-css-variable.mjs';\nimport { KeyframeResolver } from './KeyframesResolver.mjs';\nimport { isNone } from './utils/is-none.mjs';\nimport { makeNoneKeyframesAnimatable } from './utils/make-none-animatable.mjs';\nimport { isNumOrPxType, positionalValues } from './utils/unit-conversion.mjs';\nclass DOMKeyframesResolver extends KeyframeResolver {\n constructor(unresolvedKeyframes, onComplete, name, motionValue, element) {\n super(unresolvedKeyframes, onComplete, name, motionValue, element, true);\n }\n readKeyframes() {\n const {\n unresolvedKeyframes,\n element,\n name\n } = this;\n if (!element || !element.current) return;\n super.readKeyframes();\n /**\n * If any keyframe is a CSS variable, we need to find its value by sampling the element\n */\n for (let i = 0; i < unresolvedKeyframes.length; i++) {\n let keyframe = unresolvedKeyframes[i];\n if (typeof keyframe === \"string\") {\n keyframe = keyframe.trim();\n if (isCSSVariableToken(keyframe)) {\n const resolved = getVariableValue(keyframe, element.current);\n if (resolved !== undefined) {\n unresolvedKeyframes[i] = resolved;\n }\n if (i === unresolvedKeyframes.length - 1) {\n this.finalKeyframe = keyframe;\n }\n }\n }\n }\n /**\n * Resolve \"none\" values. We do this potentially twice - once before and once after measuring keyframes.\n * This could be seen as inefficient but it's a trade-off to avoid measurements in more situations, which\n * have a far bigger performance impact.\n */\n this.resolveNoneKeyframes();\n /**\n * Check to see if unit type has changed. If so schedule jobs that will\n * temporarily set styles to the destination keyframes.\n * Skip if we have more than two keyframes or this isn't a positional value.\n * TODO: We can throw if there are multiple keyframes and the value type changes.\n */\n if (!positionalKeys.has(name) || unresolvedKeyframes.length !== 2) {\n return;\n }\n const [origin, target] = unresolvedKeyframes;\n const originType = findDimensionValueType(origin);\n const targetType = findDimensionValueType(target);\n /**\n * Either we don't recognise these value types or we can animate between them.\n */\n if (originType === targetType) return;\n /**\n * If both values are numbers or pixels, we can animate between them by\n * converting them to numbers.\n */\n if (isNumOrPxType(originType) && isNumOrPxType(targetType)) {\n for (let i = 0; i < unresolvedKeyframes.length; i++) {\n const value = unresolvedKeyframes[i];\n if (typeof value === \"string\") {\n unresolvedKeyframes[i] = parseFloat(value);\n }\n }\n } else if (positionalValues[name]) {\n /**\n * Else, the only way to resolve this is by measuring the element.\n */\n this.needsMeasurement = true;\n }\n }\n resolveNoneKeyframes() {\n const {\n unresolvedKeyframes,\n name\n } = this;\n const noneKeyframeIndexes = [];\n for (let i = 0; i < unresolvedKeyframes.length; i++) {\n if (unresolvedKeyframes[i] === null || isNone(unresolvedKeyframes[i])) {\n noneKeyframeIndexes.push(i);\n }\n }\n if (noneKeyframeIndexes.length) {\n makeNoneKeyframesAnimatable(unresolvedKeyframes, noneKeyframeIndexes, name);\n }\n }\n measureInitialState() {\n const {\n element,\n unresolvedKeyframes,\n name\n } = this;\n if (!element || !element.current) return;\n if (name === \"height\") {\n this.suspendedScrollY = window.pageYOffset;\n }\n this.measuredOrigin = positionalValues[name](element.measureViewportBox(), window.
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