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node_modules/lottie-web/player/js/utils/expressions/ExpressionValue.js

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+import {
+  createTypedArray,
+} from '../helpers/arrays';
+
+function ExpressionValue(elementProp, mult, type) {
+  mult = mult || 1;
+  var expressionValue;
+
+  if (elementProp.k) {
+    elementProp.getValue();
+  }
+  var i;
+  var len;
+  var arrValue;
+  var val;
+  if (type) {
+    if (type === 'color') {
+      len = 4;
+      expressionValue = createTypedArray('float32', len);
+      arrValue = createTypedArray('float32', len);
+      for (i = 0; i < len; i += 1) {
+        arrValue[i] = (i < 3) ? elementProp.v[i] * mult : 1;
+        expressionValue[i] = arrValue[i];
+      }
+      expressionValue.value = arrValue;
+    }
+  } else if (elementProp.propType === 'unidimensional') {
+    val = elementProp.v * mult;
+    expressionValue = new Number(val); // eslint-disable-line no-new-wrappers
+    expressionValue.value = val;
+  } else {
+    len = elementProp.pv.length;
+    expressionValue = createTypedArray('float32', len);
+    arrValue = createTypedArray('float32', len);
+    for (i = 0; i < len; i += 1) {
+      arrValue[i] = elementProp.v[i] * mult;
+      expressionValue[i] = arrValue[i];
+    }
+    expressionValue.value = arrValue;
+  }
+
+  expressionValue.numKeys = elementProp.keyframes ? elementProp.keyframes.length : 0;
+  expressionValue.key = function (pos) {
+    if (!expressionValue.numKeys) {
+      return 0;
+    }
+    return elementProp.keyframes[pos - 1].t;
+  };
+  expressionValue.valueAtTime = elementProp.getValueAtTime;
+  expressionValue.speedAtTime = elementProp.getSpeedAtTime;
+  expressionValue.velocityAtTime = elementProp.getVelocityAtTime;
+  expressionValue.propertyGroup = elementProp.propertyGroup;
+  Object.defineProperty(expressionValue, 'velocity', {
+    get: function () {
+      return elementProp.getVelocityAtTime(elementProp.comp.currentFrame);
+    },
+  });
+  return expressionValue;
+}
+
+export default ExpressionValue;