100 lines
4.1 KiB
JavaScript
100 lines
4.1 KiB
JavaScript
"use strict";
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import { DeviceEventEmitter } from 'react-native';
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import { State } from '../../State';
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import { TouchEventType } from '../../TouchEventType';
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import { findHandler, findOldGestureHandler } from '../handlersRegistry';
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import { GestureStateManager } from './gestureStateManager';
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let gestureHandlerEventSubscription = null;
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let gestureHandlerStateChangeEventSubscription = null;
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const gestureStateManagers = new Map();
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const lastUpdateEvent = [];
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function isStateChangeEvent(event) {
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// @ts-ignore oldState doesn't exist on GestureTouchEvent and that's the point
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return event.oldState != null;
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}
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function isTouchEvent(event) {
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return event.eventType != null;
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}
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export function onGestureHandlerEvent(event) {
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const handler = findHandler(event.handlerTag);
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if (handler) {
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if (isStateChangeEvent(event)) {
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if (event.oldState === State.UNDETERMINED && event.state === State.BEGAN) {
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handler.handlers.onBegin?.(event);
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} else if ((event.oldState === State.BEGAN || event.oldState === State.UNDETERMINED) && event.state === State.ACTIVE) {
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handler.handlers.onStart?.(event);
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lastUpdateEvent[handler.handlers.handlerTag] = event;
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} else if (event.oldState !== event.state && event.state === State.END) {
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if (event.oldState === State.ACTIVE) {
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handler.handlers.onEnd?.(event, true);
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}
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handler.handlers.onFinalize?.(event, true);
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lastUpdateEvent[handler.handlers.handlerTag] = undefined;
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} else if ((event.state === State.FAILED || event.state === State.CANCELLED) && event.oldState !== event.state) {
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if (event.oldState === State.ACTIVE) {
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handler.handlers.onEnd?.(event, false);
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}
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handler.handlers.onFinalize?.(event, false);
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gestureStateManagers.delete(event.handlerTag);
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lastUpdateEvent[handler.handlers.handlerTag] = undefined;
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}
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} else if (isTouchEvent(event)) {
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if (!gestureStateManagers.has(event.handlerTag)) {
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gestureStateManagers.set(event.handlerTag, GestureStateManager.create(event.handlerTag));
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}
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// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
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const manager = gestureStateManagers.get(event.handlerTag);
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switch (event.eventType) {
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case TouchEventType.TOUCHES_DOWN:
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handler.handlers?.onTouchesDown?.(event, manager);
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break;
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case TouchEventType.TOUCHES_MOVE:
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handler.handlers?.onTouchesMove?.(event, manager);
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break;
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case TouchEventType.TOUCHES_UP:
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handler.handlers?.onTouchesUp?.(event, manager);
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break;
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case TouchEventType.TOUCHES_CANCELLED:
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handler.handlers?.onTouchesCancelled?.(event, manager);
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break;
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}
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} else {
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handler.handlers.onUpdate?.(event);
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if (handler.handlers.onChange && handler.handlers.changeEventCalculator) {
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handler.handlers.onChange?.(handler.handlers.changeEventCalculator?.(event, lastUpdateEvent[handler.handlers.handlerTag]));
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lastUpdateEvent[handler.handlers.handlerTag] = event;
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}
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}
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} else {
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const oldHandler = findOldGestureHandler(event.handlerTag);
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if (oldHandler) {
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const nativeEvent = {
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nativeEvent: event
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};
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if (isStateChangeEvent(event)) {
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oldHandler.onGestureStateChange(nativeEvent);
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} else {
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oldHandler.onGestureEvent(nativeEvent);
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}
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return;
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}
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}
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}
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export function startListening() {
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stopListening();
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gestureHandlerEventSubscription = DeviceEventEmitter.addListener('onGestureHandlerEvent', onGestureHandlerEvent);
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gestureHandlerStateChangeEventSubscription = DeviceEventEmitter.addListener('onGestureHandlerStateChange', onGestureHandlerEvent);
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}
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export function stopListening() {
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if (gestureHandlerEventSubscription) {
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gestureHandlerEventSubscription.remove();
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gestureHandlerEventSubscription = null;
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}
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if (gestureHandlerStateChangeEventSubscription) {
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gestureHandlerStateChangeEventSubscription.remove();
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gestureHandlerStateChangeEventSubscription = null;
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}
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}
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//# sourceMappingURL=eventReceiver.js.map
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