425 lines
16 KiB
JavaScript
425 lines
16 KiB
JavaScript
/*!
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* wavesurfer.js minimap plugin 4.6.0 (2024-02-05)
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* https://wavesurfer-js.org
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* @license BSD-3-Clause
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*/
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(function webpackUniversalModuleDefinition(root, factory) {
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if(typeof exports === 'object' && typeof module === 'object')
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module.exports = factory();
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else if(typeof define === 'function' && define.amd)
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define("WaveSurfer", [], factory);
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else if(typeof exports === 'object')
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exports["WaveSurfer"] = factory();
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else
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root["WaveSurfer"] = root["WaveSurfer"] || {}, root["WaveSurfer"]["minimap"] = factory();
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})(this, () => {
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return /******/ (() => { // webpackBootstrap
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/******/ "use strict";
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/******/ var __webpack_modules__ = ({
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/***/ "./src/plugin/minimap/index.js":
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/*!*************************************!*\
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!*** ./src/plugin/minimap/index.js ***!
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\*************************************/
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/***/ ((module, exports) => {
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Object.defineProperty(exports, "__esModule", ({
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value: true
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}));
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exports["default"] = void 0;
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function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
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function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
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function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : String(i); }
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function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
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/*eslint no-console: ["error", { allow: ["warn"] }] */
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/**
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* @typedef {Object} MinimapPluginParams
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* @desc Extends the `WavesurferParams` wavesurfer was initialised with
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* @property {?string|HTMLElement} container CSS selector or HTML element where
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* the map should be rendered. By default it is simply appended
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* after the waveform.
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* @property {?boolean} deferInit Set to true to manually call
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* `initPlugin('minimap')`
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*/
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/**
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* Renders a smaller version waveform as a minimap of the main waveform.
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*
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* @implements {PluginClass}
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* @extends {Observer}
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* @example
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* // es6
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* import MinimapPlugin from 'wavesurfer.minimap.js';
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*
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* // commonjs
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* var MinimapPlugin = require('wavesurfer.minimap.js');
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*
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* // if you are using <script> tags
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* var MinimapPlugin = window.WaveSurfer.minimap;
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*
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* // ... initialising wavesurfer with the plugin
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* var wavesurfer = WaveSurfer.create({
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* // wavesurfer options ...
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* plugins: [
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* MinimapPlugin.create({
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* // plugin options ...
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* })
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* ]
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* });
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*/
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var MinimapPlugin = exports["default"] = /*#__PURE__*/function () {
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function MinimapPlugin(params, ws) {
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var _this = this;
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_classCallCheck(this, MinimapPlugin);
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this.params = Object.assign({}, ws.params, {
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showRegions: false,
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regionsPluginName: params.regionsPluginName || 'regions',
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showOverview: false,
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overviewBorderColor: 'green',
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overviewBorderSize: 2,
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// the container should be different
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container: false,
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height: Math.max(Math.round(ws.params.height / 4), 20)
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}, params, {
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scrollParent: false,
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fillParent: true
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});
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// if container is a selector, get the element
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if (typeof params.container === 'string') {
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var el = document.querySelector(params.container);
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if (!el) {
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console.warn("Wavesurfer minimap container ".concat(params.container, " was not found! The minimap will be automatically appended below the waveform."));
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}
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this.params.container = el;
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}
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// if no container is specified add a new element and insert it
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if (!params.container) {
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this.params.container = ws.util.style(document.createElement('minimap'), {
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display: 'block'
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});
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}
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this.drawer = new ws.Drawer(this.params.container, this.params);
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this.wavesurfer = ws;
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this.util = ws.util;
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/**
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* Minimap needs to listen for the `ready` and `waveform-ready` events
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* to work with the `MediaElement` backend. The moment the `ready` event
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* is called is different (and peaks would not load).
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*
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* @type {string}
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* @see https://github.com/katspaugh/wavesurfer.js/issues/736
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*/
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this.renderEvent = ws.params.backend === 'MediaElement' ? 'waveform-ready' : 'ready';
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this.overviewRegion = null;
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this.regionsPlugin = this.wavesurfer[this.params.regionsPluginName];
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this.drawer.createWrapper();
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this.createElements();
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var isInitialised = false;
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// ws ready event listener
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this._onShouldRender = function () {
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// only bind the events in the first run
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if (!isInitialised) {
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_this.bindWavesurferEvents();
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_this.bindMinimapEvents();
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isInitialised = true;
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}
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// if there is no such element, append it to the container (below
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// the waveform)
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if (!document.body.contains(_this.params.container)) {
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ws.container.insertBefore(_this.params.container, null);
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}
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if (_this.regionsPlugin && _this.params.showRegions) {
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_this.regions();
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}
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_this.render();
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};
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this._onAudioprocess = function (currentTime) {
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_this.drawer.progress(_this.wavesurfer.backend.getPlayedPercents());
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};
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// ws seek event listener
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this._onSeek = function () {
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return _this.drawer.progress(ws.backend.getPlayedPercents());
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};
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// event listeners for the overview region
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this._onScroll = function (e) {
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if (!_this.draggingOverview) {
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_this.moveOverviewRegion(e.target.scrollLeft / _this.ratio);
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}
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};
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this._onMouseover = function (e) {
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if (_this.draggingOverview) {
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_this.draggingOverview = false;
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}
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};
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var prevWidth = 0;
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this._onResize = ws.util.debounce(function () {
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if (prevWidth != _this.drawer.wrapper.clientWidth) {
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prevWidth = _this.drawer.wrapper.clientWidth;
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_this.render();
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_this.drawer.progress(_this.wavesurfer.backend.getPlayedPercents());
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}
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});
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this._onZoom = function (e) {
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_this.render();
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};
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this.wavesurfer.on('zoom', this._onZoom);
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}
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_createClass(MinimapPlugin, [{
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key: "init",
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value: function init() {
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if (this.wavesurfer.isReady) {
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this._onShouldRender();
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}
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this.wavesurfer.on(this.renderEvent, this._onShouldRender);
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}
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}, {
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key: "destroy",
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value: function destroy() {
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window.removeEventListener('resize', this._onResize, true);
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window.removeEventListener('orientationchange', this._onResize, true);
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this.wavesurfer.drawer.wrapper.removeEventListener('mouseover', this._onMouseover);
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this.wavesurfer.un(this.renderEvent, this._onShouldRender);
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this.wavesurfer.un('seek', this._onSeek);
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this.wavesurfer.un('scroll', this._onScroll);
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this.wavesurfer.un('audioprocess', this._onAudioprocess);
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this.wavesurfer.un('zoom', this._onZoom);
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this.drawer.destroy();
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this.overviewRegion = null;
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this.unAll();
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}
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}, {
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key: "regions",
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value: function regions() {
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var _this2 = this;
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this.regions = {};
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this.wavesurfer.on('region-created', function (region) {
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_this2.regions[region.id] = region;
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_this2.drawer.wrapper && _this2.renderRegions();
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});
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this.wavesurfer.on('region-updated', function (region) {
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_this2.regions[region.id] = region;
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_this2.drawer.wrapper && _this2.renderRegions();
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});
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this.wavesurfer.on('region-removed', function (region) {
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delete _this2.regions[region.id];
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_this2.drawer.wrapper && _this2.renderRegions();
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});
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}
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}, {
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key: "renderRegions",
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value: function renderRegions() {
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var _this3 = this;
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var regionElements = this.drawer.wrapper.querySelectorAll('region');
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var i;
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for (i = 0; i < regionElements.length; ++i) {
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this.drawer.wrapper.removeChild(regionElements[i]);
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}
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Object.keys(this.regions).forEach(function (id) {
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var region = _this3.regions[id];
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var width = _this3.getWidth() * ((region.end - region.start) / _this3.wavesurfer.getDuration());
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var left = _this3.getWidth() * (region.start / _this3.wavesurfer.getDuration());
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var regionElement = _this3.util.style(document.createElement('region'), {
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height: 'inherit',
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backgroundColor: region.color,
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width: width + 'px',
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left: left + 'px',
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display: 'block',
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position: 'absolute'
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});
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regionElement.classList.add(id);
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_this3.drawer.wrapper.appendChild(regionElement);
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});
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}
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}, {
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key: "createElements",
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value: function createElements() {
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this.drawer.createElements();
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if (this.params.showOverview) {
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this.overviewRegion = this.util.style(document.createElement('overview'), {
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top: 0,
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bottom: 0,
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width: '0px',
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display: 'block',
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position: 'absolute',
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cursor: 'move',
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border: this.params.overviewBorderSize + 'px solid ' + this.params.overviewBorderColor,
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zIndex: 2,
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opacity: this.params.overviewOpacity
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});
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this.drawer.wrapper.appendChild(this.overviewRegion);
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}
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}
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}, {
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key: "bindWavesurferEvents",
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value: function bindWavesurferEvents() {
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window.addEventListener('resize', this._onResize, true);
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window.addEventListener('orientationchange', this._onResize, true);
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this.wavesurfer.on('audioprocess', this._onAudioprocess);
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this.wavesurfer.on('seek', this._onSeek);
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if (this.params.showOverview) {
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this.wavesurfer.on('scroll', this._onScroll);
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this.wavesurfer.drawer.wrapper.addEventListener('mouseover', this._onMouseover);
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}
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}
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}, {
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key: "bindMinimapEvents",
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value: function bindMinimapEvents() {
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var _this4 = this;
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var positionMouseDown = {
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clientX: 0,
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clientY: 0
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};
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var relativePositionX = 0;
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var seek = true;
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// the following event listeners will be destroyed by using
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// this.unAll() and nullifying the DOM node references after
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// removing them
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if (this.params.interact) {
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this.drawer.wrapper.addEventListener('click', function (event) {
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_this4.fireEvent('click', event, _this4.drawer.handleEvent(event));
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});
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this.on('click', function (event, position) {
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if (seek) {
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_this4.drawer.progress(position);
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_this4.wavesurfer.seekAndCenter(position);
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} else {
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seek = true;
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}
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});
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}
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if (this.params.showOverview) {
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this.overviewRegion.addEventListener('mousedown', function (event) {
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_this4.draggingOverview = true;
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relativePositionX = event.layerX;
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positionMouseDown.clientX = event.clientX;
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positionMouseDown.clientY = event.clientY;
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});
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this.drawer.wrapper.addEventListener('mousemove', function (event) {
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if (_this4.draggingOverview) {
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_this4.moveOverviewRegion(event.clientX - _this4.drawer.container.getBoundingClientRect().left - relativePositionX);
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}
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});
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this.drawer.wrapper.addEventListener('mouseup', function (event) {
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if (positionMouseDown.clientX - event.clientX === 0 && positionMouseDown.clientX - event.clientX === 0) {
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seek = true;
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_this4.draggingOverview = false;
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} else if (_this4.draggingOverview) {
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seek = false;
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_this4.draggingOverview = false;
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}
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});
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}
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}
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}, {
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key: "render",
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value: function render() {
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var len = this.drawer.getWidth();
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var peaks = this.wavesurfer.backend.getPeaks(len, 0, len);
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this.drawer.drawPeaks(peaks, len, 0, len);
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this.drawer.progress(this.wavesurfer.backend.getPlayedPercents());
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if (this.params.showOverview) {
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//get proportional width of overview region considering the respective
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//width of the drawers
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this.ratio = this.wavesurfer.drawer.width / this.drawer.width;
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this.waveShowedWidth = this.wavesurfer.drawer.width / this.ratio;
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this.waveWidth = this.wavesurfer.drawer.width;
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this.overviewWidth = this.drawer.container.offsetWidth / this.ratio;
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this.overviewPosition = 0;
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this.moveOverviewRegion(this.wavesurfer.drawer.wrapper.scrollLeft / this.ratio);
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this.overviewRegion.style.width = this.overviewWidth + 'px';
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}
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}
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}, {
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key: "moveOverviewRegion",
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value: function moveOverviewRegion(pixels) {
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if (pixels < 0) {
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this.overviewPosition = 0;
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} else if (pixels + this.overviewWidth < this.drawer.container.offsetWidth) {
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this.overviewPosition = pixels;
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} else {
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this.overviewPosition = this.drawer.container.offsetWidth - this.overviewWidth;
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}
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this.overviewRegion.style.left = this.overviewPosition + 'px';
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if (this.draggingOverview) {
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this.wavesurfer.drawer.wrapper.scrollLeft = this.overviewPosition * this.ratio;
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}
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}
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}, {
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key: "getWidth",
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value: function getWidth() {
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return this.drawer.width / this.params.pixelRatio;
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}
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}], [{
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key: "create",
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value:
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/**
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* Minimap plugin definition factory
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*
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* This function must be used to create a plugin definition which can be
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* used by wavesurfer to correctly instantiate the plugin.
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*
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* @param {MinimapPluginParams} params parameters use to initialise the plugin
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* @return {PluginDefinition} an object representing the plugin
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*/
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function create(params) {
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return {
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name: 'minimap',
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deferInit: params && params.deferInit ? params.deferInit : false,
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params: params,
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staticProps: {},
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instance: MinimapPlugin
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};
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}
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}]);
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return MinimapPlugin;
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}();
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module.exports = exports.default;
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/***/ })
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/******/ });
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/************************************************************************/
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/******/ // The module cache
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/******/ var __webpack_module_cache__ = {};
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/******/
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/******/ // The require function
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/******/ function __webpack_require__(moduleId) {
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/******/ // Check if module is in cache
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/******/ var cachedModule = __webpack_module_cache__[moduleId];
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/******/ if (cachedModule !== undefined) {
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/******/ return cachedModule.exports;
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/******/ }
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/******/ // Create a new module (and put it into the cache)
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/******/ var module = __webpack_module_cache__[moduleId] = {
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/******/ // no module.id needed
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/******/ // no module.loaded needed
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/******/ exports: {}
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/******/ };
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/******/
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/******/ // Execute the module function
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/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__);
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/******/
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/******/ // Return the exports of the module
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/******/ return module.exports;
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/******/ }
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/******/
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/************************************************************************/
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/******/
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/******/ // startup
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/******/ // Load entry module and return exports
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/******/ // This entry module is referenced by other modules so it can't be inlined
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/******/ var __webpack_exports__ = __webpack_require__("./src/plugin/minimap/index.js");
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/******/
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/******/ return __webpack_exports__;
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/******/ })()
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;
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});
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//# sourceMappingURL=wavesurfer.minimap.js.map
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