mirror of
https://github.com/twbs/bootstrap.git
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157 lines
4.6 KiB
JavaScript
157 lines
4.6 KiB
JavaScript
/*!
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* Bootstrap swipe.js v5.2.3 (https://getbootstrap.com/)
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* Copyright 2011-2022 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
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*/
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('./config'), require('../dom/event-handler'), require('./index')) :
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typeof define === 'function' && define.amd ? define(['./config', '../dom/event-handler', './index'], factory) :
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(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Swipe = factory(global.Config, global.EventHandler, global.Index));
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})(this, (function (Config, EventHandler, index) { 'use strict';
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const _interopDefaultLegacy = e => e && typeof e === 'object' && 'default' in e ? e : { default: e };
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const Config__default = /*#__PURE__*/_interopDefaultLegacy(Config);
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const EventHandler__default = /*#__PURE__*/_interopDefaultLegacy(EventHandler);
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/**
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* --------------------------------------------------------------------------
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* Bootstrap (v5.2.3): util/swipe.js
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
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* --------------------------------------------------------------------------
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*/
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/**
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* Constants
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*/
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const NAME = 'swipe';
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const EVENT_KEY = '.bs.swipe';
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const EVENT_TOUCHSTART = `touchstart${EVENT_KEY}`;
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const EVENT_TOUCHMOVE = `touchmove${EVENT_KEY}`;
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const EVENT_TOUCHEND = `touchend${EVENT_KEY}`;
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const EVENT_POINTERDOWN = `pointerdown${EVENT_KEY}`;
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const EVENT_POINTERUP = `pointerup${EVENT_KEY}`;
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const POINTER_TYPE_TOUCH = 'touch';
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const POINTER_TYPE_PEN = 'pen';
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const CLASS_NAME_POINTER_EVENT = 'pointer-event';
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const SWIPE_THRESHOLD = 40;
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const Default = {
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endCallback: null,
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leftCallback: null,
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rightCallback: null
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};
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const DefaultType = {
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endCallback: '(function|null)',
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leftCallback: '(function|null)',
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rightCallback: '(function|null)'
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};
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/**
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* Class definition
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*/
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class Swipe extends Config__default.default {
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constructor(element, config) {
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super();
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this._element = element;
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if (!element || !Swipe.isSupported()) {
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return;
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}
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this._config = this._getConfig(config);
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this._deltaX = 0;
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this._supportPointerEvents = Boolean(window.PointerEvent);
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this._initEvents();
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} // Getters
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static get Default() {
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return Default;
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}
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static get DefaultType() {
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return DefaultType;
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}
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static get NAME() {
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return NAME;
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} // Public
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dispose() {
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EventHandler__default.default.off(this._element, EVENT_KEY);
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} // Private
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_start(event) {
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if (!this._supportPointerEvents) {
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this._deltaX = event.touches[0].clientX;
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return;
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}
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if (this._eventIsPointerPenTouch(event)) {
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this._deltaX = event.clientX;
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}
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}
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_end(event) {
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if (this._eventIsPointerPenTouch(event)) {
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this._deltaX = event.clientX - this._deltaX;
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}
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this._handleSwipe();
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index.execute(this._config.endCallback);
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}
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_move(event) {
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this._deltaX = event.touches && event.touches.length > 1 ? 0 : event.touches[0].clientX - this._deltaX;
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}
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_handleSwipe() {
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const absDeltaX = Math.abs(this._deltaX);
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if (absDeltaX <= SWIPE_THRESHOLD) {
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return;
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}
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const direction = absDeltaX / this._deltaX;
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this._deltaX = 0;
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if (!direction) {
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return;
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}
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index.execute(direction > 0 ? this._config.rightCallback : this._config.leftCallback);
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}
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_initEvents() {
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if (this._supportPointerEvents) {
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EventHandler__default.default.on(this._element, EVENT_POINTERDOWN, event => this._start(event));
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EventHandler__default.default.on(this._element, EVENT_POINTERUP, event => this._end(event));
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this._element.classList.add(CLASS_NAME_POINTER_EVENT);
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} else {
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EventHandler__default.default.on(this._element, EVENT_TOUCHSTART, event => this._start(event));
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EventHandler__default.default.on(this._element, EVENT_TOUCHMOVE, event => this._move(event));
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EventHandler__default.default.on(this._element, EVENT_TOUCHEND, event => this._end(event));
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}
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}
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_eventIsPointerPenTouch(event) {
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return this._supportPointerEvents && (event.pointerType === POINTER_TYPE_PEN || event.pointerType === POINTER_TYPE_TOUCH);
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} // Static
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static isSupported() {
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return 'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0;
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}
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}
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return Swipe;
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}));
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//# sourceMappingURL=swipe.js.map
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