94 lines
2.0 KiB
JavaScript
94 lines
2.0 KiB
JavaScript
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/* eslint-disable eslint-comments/no-unlimited-disable */
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/* eslint-disable */
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import GestureHandler from './GestureHandler';
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import { TEST_MAX_IF_NOT_NAN } from './utils';
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class DiscreteGestureHandler extends GestureHandler {
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get isDiscrete() {
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return true;
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}
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get shouldEnableGestureOnSetup() {
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return true;
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}
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shouldFailUnderCustomCriteria({
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x,
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y,
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deltaX,
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deltaY
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}, {
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maxDeltaX,
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maxDeltaY,
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maxDistSq,
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shouldCancelWhenOutside
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}) {
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if (shouldCancelWhenOutside) {
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if (!this.isPointInView({
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x,
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y
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})) {
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return true;
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}
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}
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return TEST_MAX_IF_NOT_NAN(Math.abs(deltaX), maxDeltaX) || TEST_MAX_IF_NOT_NAN(Math.abs(deltaY), maxDeltaY) || TEST_MAX_IF_NOT_NAN(Math.abs(deltaY * deltaY + deltaX * deltaX), maxDistSq);
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}
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transformNativeEvent({
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center: {
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x,
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y
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}
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}) {
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// @ts-ignore FIXME(TS)
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const rect = this.view.getBoundingClientRect();
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return {
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absoluteX: x,
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absoluteY: y,
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x: x - rect.left,
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y: y - rect.top
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};
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}
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isGestureEnabledForEvent({
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minPointers,
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maxPointers,
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maxDeltaX,
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maxDeltaY,
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maxDistSq,
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shouldCancelWhenOutside
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}, _recognizer, {
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maxPointers: pointerLength,
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center,
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deltaX,
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deltaY
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}) {
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const validPointerCount = pointerLength >= minPointers && pointerLength <= maxPointers;
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if (this.shouldFailUnderCustomCriteria({ ...center,
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deltaX,
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deltaY
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}, {
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maxDeltaX,
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maxDeltaY,
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maxDistSq,
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shouldCancelWhenOutside
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}) || // A user probably won't land a multi-pointer tap on the first tick (so we cannot just cancel each time)
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// but if the gesture is running and the user adds or subtracts another pointer then it should fail.
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!validPointerCount && this.isGestureRunning) {
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return {
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failed: true
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};
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}
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return {
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success: validPointerCount
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};
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}
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}
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export default DiscreteGestureHandler;
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//# sourceMappingURL=DiscreteGestureHandler.js.map
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