Initial commit

node_modules/framer-motion/dist/es/render/dom/DOMKeyframesResolver.mjs

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