26 lines
633 B
TypeScript
26 lines
633 B
TypeScript
import Hammer from '@egjs/hammerjs';
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import { DEG_RAD } from './constants';
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import { HammerInputExt } from './GestureHandler';
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import IndiscreteGestureHandler from './IndiscreteGestureHandler';
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class RotationGestureHandler extends IndiscreteGestureHandler {
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get name() {
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return 'rotate';
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}
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get NativeGestureClass() {
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return Hammer.Rotate;
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}
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transformNativeEvent({ rotation, velocity, center }: HammerInputExt) {
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return {
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rotation: (rotation - (this.initialRotation ?? 0)) * DEG_RAD,
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anchorX: center.x,
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anchorY: center.y,
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velocity,
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};
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}
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}
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export default RotationGestureHandler;
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