114 lines
2.6 KiB
JavaScript
114 lines
2.6 KiB
JavaScript
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/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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* @flow strict
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* @jsdoc
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*/
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import NativeVibration from './NativeVibration';
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const Platform = require('../Utilities/Platform');
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/**
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* Vibration API
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*
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* See https://reactnative.dev/docs/vibration
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*/
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let _vibrating: boolean = false;
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let _id: number = 0; // _id is necessary to prevent race condition.
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const _default_vibration_length = 400;
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function vibrateByPattern(pattern: Array<number>, repeat: boolean = false) {
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if (_vibrating) {
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return;
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}
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_vibrating = true;
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if (pattern[0] === 0) {
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NativeVibration.vibrate(_default_vibration_length);
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// $FlowFixMe[reassign-const]
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pattern = pattern.slice(1);
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}
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if (pattern.length === 0) {
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_vibrating = false;
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return;
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}
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setTimeout(() => vibrateScheduler(++_id, pattern, repeat, 1), pattern[0]);
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}
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function vibrateScheduler(
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id: number,
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pattern: Array<number>,
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repeat: boolean,
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nextIndex: number,
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) {
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if (!_vibrating || id !== _id) {
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return;
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}
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NativeVibration.vibrate(_default_vibration_length);
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if (nextIndex >= pattern.length) {
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if (repeat) {
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// $FlowFixMe[reassign-const]
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nextIndex = 0;
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} else {
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_vibrating = false;
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return;
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}
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}
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setTimeout(
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() => vibrateScheduler(id, pattern, repeat, nextIndex + 1),
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pattern[nextIndex],
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);
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}
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const Vibration = {
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/**
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* Trigger a vibration with specified `pattern`.
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*
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* See https://reactnative.dev/docs/vibration#vibrate
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*/
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vibrate: function (
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pattern: number | Array<number> = _default_vibration_length,
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repeat: boolean = false,
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) {
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if (Platform.OS === 'android') {
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if (typeof pattern === 'number') {
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NativeVibration.vibrate(pattern);
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} else if (Array.isArray(pattern)) {
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NativeVibration.vibrateByPattern(pattern, repeat ? 0 : -1);
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} else {
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throw new Error('Vibration pattern should be a number or array');
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}
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} else {
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if (_vibrating) {
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return;
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}
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if (typeof pattern === 'number') {
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NativeVibration.vibrate(pattern);
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} else if (Array.isArray(pattern)) {
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vibrateByPattern(pattern, repeat);
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} else {
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throw new Error('Vibration pattern should be a number or array');
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}
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}
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},
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/**
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* Stop vibration
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*
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* See https://reactnative.dev/docs/vibration#cancel
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*/
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cancel: function () {
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if (Platform.OS === 'ios') {
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_vibrating = false;
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} else {
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NativeVibration.cancel();
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}
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},
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};
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module.exports = Vibration;
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