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@@ -0,0 +1,6248 @@
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+/*!
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+ * wavesurfer.js 4.1.1 (2020-09-25)
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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"] = factory();
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+})(this, function() {
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+return /******/ (function(modules) { // webpackBootstrap
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+/******/ // The module cache
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+/******/ var installedModules = {};
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+/******/
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+/******/ // The require function
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+/******/ function __webpack_require__(moduleId) {
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+/******/
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+/******/ // Check if module is in cache
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+/******/ if(installedModules[moduleId]) {
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+/******/ return installedModules[moduleId].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 = installedModules[moduleId] = {
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+/******/ i: moduleId,
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+/******/ l: false,
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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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+/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
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+/******/
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+/******/ // Flag the module as loaded
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+/******/ module.l = true;
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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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+/******/ // expose the modules object (__webpack_modules__)
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+/******/ __webpack_require__.m = modules;
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+/******/
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+/******/ // expose the module cache
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+/******/ __webpack_require__.c = installedModules;
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+/******/
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+/******/ // define getter function for harmony exports
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+/******/ __webpack_require__.d = function(exports, name, getter) {
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+/******/ if(!__webpack_require__.o(exports, name)) {
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+/******/ Object.defineProperty(exports, name, { enumerable: true, get: getter });
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+/******/ }
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+/******/ };
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+/******/
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+/******/ // define __esModule on exports
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+/******/ __webpack_require__.r = function(exports) {
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+/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
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+/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
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+/******/ }
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+/******/ Object.defineProperty(exports, '__esModule', { value: true });
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+/******/ };
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+/******/
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+/******/ // create a fake namespace object
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+/******/ // mode & 1: value is a module id, require it
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+/******/ // mode & 2: merge all properties of value into the ns
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+/******/ // mode & 4: return value when already ns object
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+/******/ // mode & 8|1: behave like require
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+/******/ __webpack_require__.t = function(value, mode) {
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+/******/ if(mode & 1) value = __webpack_require__(value);
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+/******/ if(mode & 8) return value;
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+/******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
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+/******/ var ns = Object.create(null);
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+/******/ __webpack_require__.r(ns);
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+/******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value });
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+/******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
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+/******/ return ns;
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+/******/ };
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+/******/
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+/******/ // getDefaultExport function for compatibility with non-harmony modules
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+/******/ __webpack_require__.n = function(module) {
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+/******/ var getter = module && module.__esModule ?
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+/******/ function getDefault() { return module['default']; } :
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+/******/ function getModuleExports() { return module; };
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+/******/ __webpack_require__.d(getter, 'a', getter);
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+/******/ return getter;
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+/******/ };
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+/******/
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+/******/ // Object.prototype.hasOwnProperty.call
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+/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
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+/******/
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+/******/ // __webpack_public_path__
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+/******/ __webpack_require__.p = "";
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+/******/
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+/******/
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+/******/ // Load entry module and return exports
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+/******/ return __webpack_require__(__webpack_require__.s = "./src/wavesurfer.js");
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+/******/ })
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+/************************************************************************/
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+/******/ ({
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+
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+/***/ "./node_modules/debounce/index.js":
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+/*!****************************************!*\
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+ !*** ./node_modules/debounce/index.js ***!
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+ \****************************************/
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+/*! no static exports found */
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+/***/ (function(module, exports) {
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+
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+/**
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+ * Returns a function, that, as long as it continues to be invoked, will not
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+ * be triggered. The function will be called after it stops being called for
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+ * N milliseconds. If `immediate` is passed, trigger the function on the
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+ * leading edge, instead of the trailing. The function also has a property 'clear'
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+ * that is a function which will clear the timer to prevent previously scheduled executions.
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+ *
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+ * @source underscore.js
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+ * @see http://unscriptable.com/2009/03/20/debouncing-javascript-methods/
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+ * @param {Function} function to wrap
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+ * @param {Number} timeout in ms (`100`)
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+ * @param {Boolean} whether to execute at the beginning (`false`)
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+ * @api public
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+ */
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+function debounce(func, wait, immediate){
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+ var timeout, args, context, timestamp, result;
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+ if (null == wait) wait = 100;
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+
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+ function later() {
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+ var last = Date.now() - timestamp;
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+
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+ if (last < wait && last >= 0) {
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+ timeout = setTimeout(later, wait - last);
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+ } else {
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+ timeout = null;
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+ if (!immediate) {
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+ result = func.apply(context, args);
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+ context = args = null;
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+ }
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+ }
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+ };
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+
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+ var debounced = function(){
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+ context = this;
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+ args = arguments;
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+ timestamp = Date.now();
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+ var callNow = immediate && !timeout;
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+ if (!timeout) timeout = setTimeout(later, wait);
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+ if (callNow) {
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+ result = func.apply(context, args);
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+ context = args = null;
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+ }
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+
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+ return result;
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+ };
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+
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+ debounced.clear = function() {
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+ if (timeout) {
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+ clearTimeout(timeout);
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+ timeout = null;
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+ }
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+ };
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+
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+ debounced.flush = function() {
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+ if (timeout) {
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+ result = func.apply(context, args);
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+ context = args = null;
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+
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+ clearTimeout(timeout);
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+ timeout = null;
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+ }
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+ };
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+
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+ return debounced;
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+};
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+
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+// Adds compatibility for ES modules
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+debounce.debounce = debounce;
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+
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+module.exports = debounce;
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+
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+
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+/***/ }),
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+
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+/***/ "./src/drawer.canvasentry.js":
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+/*!***********************************!*\
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+ !*** ./src/drawer.canvasentry.js ***!
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+ \***********************************/
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+/*! no static exports found */
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+/***/ (function(module, exports, __webpack_require__) {
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+
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+"use strict";
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+
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+
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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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+
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+var _style = _interopRequireDefault(__webpack_require__(/*! ./util/style */ "./src/util/style.js"));
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+
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+var _getId = _interopRequireDefault(__webpack_require__(/*! ./util/get-id */ "./src/util/get-id.js"));
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+
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+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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+
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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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+
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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, descriptor.key, descriptor); } }
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+
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+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
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+
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+/**
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+ * The `CanvasEntry` class represents an element consisting of a wave `canvas`
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+ * and an (optional) progress wave `canvas`.
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+ *
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+ * The `MultiCanvas` renderer uses one or more `CanvasEntry` instances to
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+ * render a waveform, depending on the zoom level.
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+ */
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+var CanvasEntry = /*#__PURE__*/function () {
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+ function CanvasEntry() {
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+ _classCallCheck(this, CanvasEntry);
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+
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+ /**
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+ * The wave node
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+ *
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+ * @type {HTMLCanvasElement}
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+ */
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+ this.wave = null;
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+ /**
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+ * The wave canvas rendering context
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+ *
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+ * @type {CanvasRenderingContext2D}
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+ */
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+
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+ this.waveCtx = null;
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+ /**
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+ * The (optional) progress wave node
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+ *
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+ * @type {HTMLCanvasElement}
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+ */
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+
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+ this.progress = null;
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+ /**
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+ * The (optional) progress wave canvas rendering context
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+ *
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+ * @type {CanvasRenderingContext2D}
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+ */
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+
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+ this.progressCtx = null;
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+ /**
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+ * Start of the area the canvas should render, between 0 and 1
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+ *
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+ * @type {number}
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+ */
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+
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+ this.start = 0;
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+ /**
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+ * End of the area the canvas should render, between 0 and 1
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+ *
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+ * @type {number}
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+ */
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+
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+ this.end = 1;
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+ /**
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+ * Unique identifier for this entry
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+ *
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+ * @type {string}
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+ */
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+
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+ this.id = (0, _getId.default)(typeof this.constructor.name !== 'undefined' ? this.constructor.name.toLowerCase() + '_' : 'canvasentry_');
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+ /**
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+ * Canvas 2d context attributes
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+ *
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+ * @type {object}
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+ */
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+
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+ this.canvasContextAttributes = {};
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+ }
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+ /**
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+ * Store the wave canvas element and create the 2D rendering context
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+ *
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+ * @param {HTMLCanvasElement} element The wave `canvas` element.
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+ */
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+
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+
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+ _createClass(CanvasEntry, [{
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+ key: "initWave",
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+ value: function initWave(element) {
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+ this.wave = element;
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+ this.waveCtx = this.wave.getContext('2d', this.canvasContextAttributes);
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+ }
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+ /**
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+ * Store the progress wave canvas element and create the 2D rendering
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+ * context
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+ *
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+ * @param {HTMLCanvasElement} element The progress wave `canvas` element.
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+ */
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+
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+ }, {
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+ key: "initProgress",
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+ value: function initProgress(element) {
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+ this.progress = element;
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+ this.progressCtx = this.progress.getContext('2d', this.canvasContextAttributes);
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+ }
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+ /**
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+ * Update the dimensions
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+ *
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+ * @param {number} elementWidth Width of the entry
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+ * @param {number} totalWidth Total width of the multi canvas renderer
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+ * @param {number} width The new width of the element
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+ * @param {number} height The new height of the element
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+ */
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+
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+ }, {
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+ key: "updateDimensions",
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+ value: function updateDimensions(elementWidth, totalWidth, width, height) {
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+ // where the canvas starts and ends in the waveform, represented as a
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+ // decimal between 0 and 1
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+ this.start = this.wave.offsetLeft / totalWidth || 0;
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+ this.end = this.start + elementWidth / totalWidth; // set wave canvas dimensions
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+
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+ this.wave.width = width;
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+ this.wave.height = height;
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+ var elementSize = {
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+ width: elementWidth + 'px'
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+ };
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+ (0, _style.default)(this.wave, elementSize);
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+
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+ if (this.hasProgressCanvas) {
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+ // set progress canvas dimensions
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+ this.progress.width = width;
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+ this.progress.height = height;
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+ (0, _style.default)(this.progress, elementSize);
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+ }
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+ }
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+ /**
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+ * Clear the wave and progress rendering contexts
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+ */
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+
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+ }, {
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+ key: "clearWave",
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+ value: function clearWave() {
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+ // wave
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+ this.waveCtx.clearRect(0, 0, this.waveCtx.canvas.width, this.waveCtx.canvas.height); // progress
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+
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+ if (this.hasProgressCanvas) {
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+ this.progressCtx.clearRect(0, 0, this.progressCtx.canvas.width, this.progressCtx.canvas.height);
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+ }
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+ }
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+ /**
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+ * Set the fill styles for wave and progress
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+ *
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+ * @param {string} waveColor Fill color for the wave canvas
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+ * @param {?string} progressColor Fill color for the progress canvas
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+ */
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+
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+ }, {
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+ key: "setFillStyles",
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+ value: function setFillStyles(waveColor, progressColor) {
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+ this.waveCtx.fillStyle = waveColor;
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+
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+ if (this.hasProgressCanvas) {
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+ this.progressCtx.fillStyle = progressColor;
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+ }
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+ }
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+ /**
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+ * Draw a rectangle for wave and progress
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+ *
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+ * @param {number} x X start position
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+ * @param {number} y Y start position
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+ * @param {number} width Width of the rectangle
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+ * @param {number} height Height of the rectangle
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+ * @param {number} radius Radius of the rectangle
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+ */
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+
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+ }, {
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+ key: "fillRects",
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+ value: function fillRects(x, y, width, height, radius) {
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+ this.fillRectToContext(this.waveCtx, x, y, width, height, radius);
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+
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+ if (this.hasProgressCanvas) {
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+ this.fillRectToContext(this.progressCtx, x, y, width, height, radius);
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+ }
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+ }
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+ /**
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+ * Draw the actual rectangle on a `canvas` element
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+ *
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+ * @param {CanvasRenderingContext2D} ctx Rendering context of target canvas
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+ * @param {number} x X start position
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+ * @param {number} y Y start position
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+ * @param {number} width Width of the rectangle
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+ * @param {number} height Height of the rectangle
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+ * @param {number} radius Radius of the rectangle
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+ */
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+
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+ }, {
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+ key: "fillRectToContext",
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+ value: function fillRectToContext(ctx, x, y, width, height, radius) {
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+ if (!ctx) {
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+ return;
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+ }
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+
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+ if (radius) {
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+ this.drawRoundedRect(ctx, x, y, width, height, radius);
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+ } else {
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+ ctx.fillRect(x, y, width, height);
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+ }
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+ }
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+ /**
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+ * Draw a rounded rectangle on Canvas
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+ *
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+ * @param {CanvasRenderingContext2D} ctx Canvas context
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+ * @param {number} x X-position of the rectangle
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+ * @param {number} y Y-position of the rectangle
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+ * @param {number} width Width of the rectangle
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+ * @param {number} height Height of the rectangle
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+ * @param {number} radius Radius of the rectangle
|
|
|
+ *
|
|
|
+ * @return {void}
|
|
|
+ * @example drawRoundedRect(ctx, 50, 50, 5, 10, 3)
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "drawRoundedRect",
|
|
|
+ value: function drawRoundedRect(ctx, x, y, width, height, radius) {
|
|
|
+ if (height === 0) {
|
|
|
+ return;
|
|
|
+ } // peaks are float values from -1 to 1. Use absolute height values in
|
|
|
+ // order to correctly calculate rounded rectangle coordinates
|
|
|
+
|
|
|
+
|
|
|
+ if (height < 0) {
|
|
|
+ height *= -1;
|
|
|
+ y -= height;
|
|
|
+ }
|
|
|
+
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.moveTo(x + radius, y);
|
|
|
+ ctx.lineTo(x + width - radius, y);
|
|
|
+ ctx.quadraticCurveTo(x + width, y, x + width, y + radius);
|
|
|
+ ctx.lineTo(x + width, y + height - radius);
|
|
|
+ ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
|
|
|
+ ctx.lineTo(x + radius, y + height);
|
|
|
+ ctx.quadraticCurveTo(x, y + height, x, y + height - radius);
|
|
|
+ ctx.lineTo(x, y + radius);
|
|
|
+ ctx.quadraticCurveTo(x, y, x + radius, y);
|
|
|
+ ctx.closePath();
|
|
|
+ ctx.fill();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Render the actual wave and progress lines
|
|
|
+ *
|
|
|
+ * @param {number[]} peaks Array with peaks data
|
|
|
+ * @param {number} absmax Maximum peak value (absolute)
|
|
|
+ * @param {number} halfH Half the height of the waveform
|
|
|
+ * @param {number} offsetY Offset to the top
|
|
|
+ * @param {number} start The x-offset of the beginning of the area that
|
|
|
+ * should be rendered
|
|
|
+ * @param {number} end The x-offset of the end of the area that
|
|
|
+ * should be rendered
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "drawLines",
|
|
|
+ value: function drawLines(peaks, absmax, halfH, offsetY, start, end) {
|
|
|
+ this.drawLineToContext(this.waveCtx, peaks, absmax, halfH, offsetY, start, end);
|
|
|
+
|
|
|
+ if (this.hasProgressCanvas) {
|
|
|
+ this.drawLineToContext(this.progressCtx, peaks, absmax, halfH, offsetY, start, end);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Render the actual waveform line on a `canvas` element
|
|
|
+ *
|
|
|
+ * @param {CanvasRenderingContext2D} ctx Rendering context of target canvas
|
|
|
+ * @param {number[]} peaks Array with peaks data
|
|
|
+ * @param {number} absmax Maximum peak value (absolute)
|
|
|
+ * @param {number} halfH Half the height of the waveform
|
|
|
+ * @param {number} offsetY Offset to the top
|
|
|
+ * @param {number} start The x-offset of the beginning of the area that
|
|
|
+ * should be rendered
|
|
|
+ * @param {number} end The x-offset of the end of the area that
|
|
|
+ * should be rendered
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "drawLineToContext",
|
|
|
+ value: function drawLineToContext(ctx, peaks, absmax, halfH, offsetY, start, end) {
|
|
|
+ if (!ctx) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ var length = peaks.length / 2;
|
|
|
+ var first = Math.round(length * this.start); // use one more peak value to make sure we join peaks at ends -- unless,
|
|
|
+ // of course, this is the last canvas
|
|
|
+
|
|
|
+ var last = Math.round(length * this.end) + 1;
|
|
|
+ var canvasStart = first;
|
|
|
+ var canvasEnd = last;
|
|
|
+ var scale = this.wave.width / (canvasEnd - canvasStart - 1); // optimization
|
|
|
+
|
|
|
+ var halfOffset = halfH + offsetY;
|
|
|
+ var absmaxHalf = absmax / halfH;
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.moveTo((canvasStart - first) * scale, halfOffset);
|
|
|
+ ctx.lineTo((canvasStart - first) * scale, halfOffset - Math.round((peaks[2 * canvasStart] || 0) / absmaxHalf));
|
|
|
+ var i, peak, h;
|
|
|
+
|
|
|
+ for (i = canvasStart; i < canvasEnd; i++) {
|
|
|
+ peak = peaks[2 * i] || 0;
|
|
|
+ h = Math.round(peak / absmaxHalf);
|
|
|
+ ctx.lineTo((i - first) * scale + this.halfPixel, halfOffset - h);
|
|
|
+ } // draw the bottom edge going backwards, to make a single
|
|
|
+ // closed hull to fill
|
|
|
+
|
|
|
+
|
|
|
+ var j = canvasEnd - 1;
|
|
|
+
|
|
|
+ for (j; j >= canvasStart; j--) {
|
|
|
+ peak = peaks[2 * j + 1] || 0;
|
|
|
+ h = Math.round(peak / absmaxHalf);
|
|
|
+ ctx.lineTo((j - first) * scale + this.halfPixel, halfOffset - h);
|
|
|
+ }
|
|
|
+
|
|
|
+ ctx.lineTo((canvasStart - first) * scale, halfOffset - Math.round((peaks[2 * canvasStart + 1] || 0) / absmaxHalf));
|
|
|
+ ctx.closePath();
|
|
|
+ ctx.fill();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Destroys this entry
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "destroy",
|
|
|
+ value: function destroy() {
|
|
|
+ this.waveCtx = null;
|
|
|
+ this.wave = null;
|
|
|
+ this.progressCtx = null;
|
|
|
+ this.progress = null;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Return image data of the wave `canvas` element
|
|
|
+ *
|
|
|
+ * When using a `type` of `'blob'`, this will return a `Promise` that
|
|
|
+ * resolves with a `Blob` instance.
|
|
|
+ *
|
|
|
+ * @param {string} format='image/png' An optional value of a format type.
|
|
|
+ * @param {number} quality=0.92 An optional value between 0 and 1.
|
|
|
+ * @param {string} type='dataURL' Either 'dataURL' or 'blob'.
|
|
|
+ * @return {string|Promise} When using the default `'dataURL'` `type` this
|
|
|
+ * returns a data URL. When using the `'blob'` `type` this returns a
|
|
|
+ * `Promise` that resolves with a `Blob` instance.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getImage",
|
|
|
+ value: function getImage(format, quality, type) {
|
|
|
+ var _this = this;
|
|
|
+
|
|
|
+ if (type === 'blob') {
|
|
|
+ return new Promise(function (resolve) {
|
|
|
+ _this.wave.toBlob(resolve, format, quality);
|
|
|
+ });
|
|
|
+ } else if (type === 'dataURL') {
|
|
|
+ return this.wave.toDataURL(format, quality);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return CanvasEntry;
|
|
|
+}();
|
|
|
+
|
|
|
+exports.default = CanvasEntry;
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/drawer.js":
|
|
|
+/*!***********************!*\
|
|
|
+ !*** ./src/drawer.js ***!
|
|
|
+ \***********************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = void 0;
|
|
|
+
|
|
|
+var util = _interopRequireWildcard(__webpack_require__(/*! ./util */ "./src/util/index.js"));
|
|
|
+
|
|
|
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }
|
|
|
+
|
|
|
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
|
|
|
+
|
|
|
+function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
+
|
|
|
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
+
|
|
|
+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, descriptor.key, descriptor); } }
|
|
|
+
|
|
|
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
+
|
|
|
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
|
|
|
+
|
|
|
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
|
|
|
+
|
|
|
+function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
|
|
|
+
|
|
|
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
|
|
|
+
|
|
|
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
|
|
|
+
|
|
|
+function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
|
|
|
+
|
|
|
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
|
|
|
+
|
|
|
+/**
|
|
|
+ * Parent class for renderers
|
|
|
+ *
|
|
|
+ * @extends {Observer}
|
|
|
+ */
|
|
|
+var Drawer = /*#__PURE__*/function (_util$Observer) {
|
|
|
+ _inherits(Drawer, _util$Observer);
|
|
|
+
|
|
|
+ var _super = _createSuper(Drawer);
|
|
|
+
|
|
|
+ /**
|
|
|
+ * @param {HTMLElement} container The container node of the wavesurfer instance
|
|
|
+ * @param {WavesurferParams} params The wavesurfer initialisation options
|
|
|
+ */
|
|
|
+ function Drawer(container, params) {
|
|
|
+ var _this;
|
|
|
+
|
|
|
+ _classCallCheck(this, Drawer);
|
|
|
+
|
|
|
+ _this = _super.call(this);
|
|
|
+ _this.container = container;
|
|
|
+ /**
|
|
|
+ * @type {WavesurferParams}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.params = params;
|
|
|
+ /**
|
|
|
+ * The width of the renderer
|
|
|
+ * @type {number}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.width = 0;
|
|
|
+ /**
|
|
|
+ * The height of the renderer
|
|
|
+ * @type {number}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.height = params.height * _this.params.pixelRatio;
|
|
|
+ _this.lastPos = 0;
|
|
|
+ /**
|
|
|
+ * The `<wave>` element which is added to the container
|
|
|
+ * @type {HTMLElement}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.wrapper = null;
|
|
|
+ return _this;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Alias of `util.style`
|
|
|
+ *
|
|
|
+ * @param {HTMLElement} el The element that the styles will be applied to
|
|
|
+ * @param {Object} styles The map of propName: attribute, both are used as-is
|
|
|
+ * @return {HTMLElement} el
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _createClass(Drawer, [{
|
|
|
+ key: "style",
|
|
|
+ value: function style(el, styles) {
|
|
|
+ return util.style(el, styles);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Create the wrapper `<wave>` element, style it and set up the events for
|
|
|
+ * interaction
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "createWrapper",
|
|
|
+ value: function createWrapper() {
|
|
|
+ this.wrapper = this.container.appendChild(document.createElement('wave'));
|
|
|
+ this.style(this.wrapper, {
|
|
|
+ display: 'block',
|
|
|
+ position: 'relative',
|
|
|
+ userSelect: 'none',
|
|
|
+ webkitUserSelect: 'none',
|
|
|
+ height: this.params.height + 'px'
|
|
|
+ });
|
|
|
+
|
|
|
+ if (this.params.fillParent || this.params.scrollParent) {
|
|
|
+ this.style(this.wrapper, {
|
|
|
+ width: '100%',
|
|
|
+ overflowX: this.params.hideScrollbar ? 'hidden' : 'auto',
|
|
|
+ overflowY: 'hidden'
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ this.setupWrapperEvents();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Handle click event
|
|
|
+ *
|
|
|
+ * @param {Event} e Click event
|
|
|
+ * @param {?boolean} noPrevent Set to true to not call `e.preventDefault()`
|
|
|
+ * @return {number} Playback position from 0 to 1
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "handleEvent",
|
|
|
+ value: function handleEvent(e, noPrevent) {
|
|
|
+ !noPrevent && e.preventDefault();
|
|
|
+ var clientX = e.targetTouches ? e.targetTouches[0].clientX : e.clientX;
|
|
|
+ var bbox = this.wrapper.getBoundingClientRect();
|
|
|
+ var nominalWidth = this.width;
|
|
|
+ var parentWidth = this.getWidth();
|
|
|
+ var progress;
|
|
|
+
|
|
|
+ if (!this.params.fillParent && nominalWidth < parentWidth) {
|
|
|
+ progress = (this.params.rtl ? bbox.right - clientX : clientX - bbox.left) * (this.params.pixelRatio / nominalWidth) || 0;
|
|
|
+ } else {
|
|
|
+ progress = ((this.params.rtl ? bbox.right - clientX : clientX - bbox.left) + this.wrapper.scrollLeft) / this.wrapper.scrollWidth || 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ return util.clamp(progress, 0, 1);
|
|
|
+ }
|
|
|
+ }, {
|
|
|
+ key: "setupWrapperEvents",
|
|
|
+ value: function setupWrapperEvents() {
|
|
|
+ var _this2 = this;
|
|
|
+
|
|
|
+ this.wrapper.addEventListener('click', function (e) {
|
|
|
+ var scrollbarHeight = _this2.wrapper.offsetHeight - _this2.wrapper.clientHeight;
|
|
|
+
|
|
|
+ if (scrollbarHeight !== 0) {
|
|
|
+ // scrollbar is visible. Check if click was on it
|
|
|
+ var bbox = _this2.wrapper.getBoundingClientRect();
|
|
|
+
|
|
|
+ if (e.clientY >= bbox.bottom - scrollbarHeight) {
|
|
|
+ // ignore mousedown as it was on the scrollbar
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (_this2.params.interact) {
|
|
|
+ _this2.fireEvent('click', e, _this2.handleEvent(e));
|
|
|
+ }
|
|
|
+ });
|
|
|
+ this.wrapper.addEventListener('dblclick', function (e) {
|
|
|
+ if (_this2.params.interact) {
|
|
|
+ _this2.fireEvent('dblclick', e, _this2.handleEvent(e));
|
|
|
+ }
|
|
|
+ });
|
|
|
+ this.wrapper.addEventListener('scroll', function (e) {
|
|
|
+ return _this2.fireEvent('scroll', e);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Draw peaks on the canvas
|
|
|
+ *
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Can also be an array of arrays
|
|
|
+ * for split channel rendering
|
|
|
+ * @param {number} length The width of the area that should be drawn
|
|
|
+ * @param {number} start The x-offset of the beginning of the area that
|
|
|
+ * should be rendered
|
|
|
+ * @param {number} end The x-offset of the end of the area that should be
|
|
|
+ * rendered
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "drawPeaks",
|
|
|
+ value: function drawPeaks(peaks, length, start, end) {
|
|
|
+ if (!this.setWidth(length)) {
|
|
|
+ this.clearWave();
|
|
|
+ }
|
|
|
+
|
|
|
+ this.params.barWidth ? this.drawBars(peaks, 0, start, end) : this.drawWave(peaks, 0, start, end);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Scroll to the beginning
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "resetScroll",
|
|
|
+ value: function resetScroll() {
|
|
|
+ if (this.wrapper !== null) {
|
|
|
+ this.wrapper.scrollLeft = 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Recenter the view-port at a certain percent of the waveform
|
|
|
+ *
|
|
|
+ * @param {number} percent Value from 0 to 1 on the waveform
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "recenter",
|
|
|
+ value: function recenter(percent) {
|
|
|
+ var position = this.wrapper.scrollWidth * percent;
|
|
|
+ this.recenterOnPosition(position, true);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Recenter the view-port on a position, either scroll there immediately or
|
|
|
+ * in steps of 5 pixels
|
|
|
+ *
|
|
|
+ * @param {number} position X-offset in pixels
|
|
|
+ * @param {boolean} immediate Set to true to immediately scroll somewhere
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "recenterOnPosition",
|
|
|
+ value: function recenterOnPosition(position, immediate) {
|
|
|
+ var scrollLeft = this.wrapper.scrollLeft;
|
|
|
+ var half = ~~(this.wrapper.clientWidth / 2);
|
|
|
+ var maxScroll = this.wrapper.scrollWidth - this.wrapper.clientWidth;
|
|
|
+ var target = position - half;
|
|
|
+ var offset = target - scrollLeft;
|
|
|
+
|
|
|
+ if (maxScroll == 0) {
|
|
|
+ // no need to continue if scrollbar is not there
|
|
|
+ return;
|
|
|
+ } // if the cursor is currently visible...
|
|
|
+
|
|
|
+
|
|
|
+ if (!immediate && -half <= offset && offset < half) {
|
|
|
+ // set rate at which waveform is centered
|
|
|
+ var rate = this.params.autoCenterRate; // make rate depend on width of view and length of waveform
|
|
|
+
|
|
|
+ rate /= half;
|
|
|
+ rate *= maxScroll;
|
|
|
+ offset = Math.max(-rate, Math.min(rate, offset));
|
|
|
+ target = scrollLeft + offset;
|
|
|
+ } // limit target to valid range (0 to maxScroll)
|
|
|
+
|
|
|
+
|
|
|
+ target = Math.max(0, Math.min(maxScroll, target)); // no use attempting to scroll if we're not moving
|
|
|
+
|
|
|
+ if (target != scrollLeft) {
|
|
|
+ this.wrapper.scrollLeft = target;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the current scroll position in pixels
|
|
|
+ *
|
|
|
+ * @return {number} Horizontal scroll position in pixels
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getScrollX",
|
|
|
+ value: function getScrollX() {
|
|
|
+ var x = 0;
|
|
|
+
|
|
|
+ if (this.wrapper) {
|
|
|
+ var pixelRatio = this.params.pixelRatio;
|
|
|
+ x = Math.round(this.wrapper.scrollLeft * pixelRatio); // In cases of elastic scroll (safari with mouse wheel) you can
|
|
|
+ // scroll beyond the limits of the container
|
|
|
+ // Calculate and floor the scrollable extent to make sure an out
|
|
|
+ // of bounds value is not returned
|
|
|
+ // Ticket #1312
|
|
|
+
|
|
|
+ if (this.params.scrollParent) {
|
|
|
+ var maxScroll = ~~(this.wrapper.scrollWidth * pixelRatio - this.getWidth());
|
|
|
+ x = Math.min(maxScroll, Math.max(0, x));
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return x;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the width of the container
|
|
|
+ *
|
|
|
+ * @return {number} The width of the container
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getWidth",
|
|
|
+ value: function getWidth() {
|
|
|
+ return Math.round(this.container.clientWidth * this.params.pixelRatio);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the width of the container
|
|
|
+ *
|
|
|
+ * @param {number} width The new width of the container
|
|
|
+ * @return {boolean} Whether the width of the container was updated or not
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setWidth",
|
|
|
+ value: function setWidth(width) {
|
|
|
+ if (this.width == width) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.width = width;
|
|
|
+
|
|
|
+ if (this.params.fillParent || this.params.scrollParent) {
|
|
|
+ this.style(this.wrapper, {
|
|
|
+ width: ''
|
|
|
+ });
|
|
|
+ } else {
|
|
|
+ this.style(this.wrapper, {
|
|
|
+ width: ~~(this.width / this.params.pixelRatio) + 'px'
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ this.updateSize();
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the height of the container
|
|
|
+ *
|
|
|
+ * @param {number} height The new height of the container.
|
|
|
+ * @return {boolean} Whether the height of the container was updated or not
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setHeight",
|
|
|
+ value: function setHeight(height) {
|
|
|
+ if (height == this.height) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.height = height;
|
|
|
+ this.style(this.wrapper, {
|
|
|
+ height: ~~(this.height / this.params.pixelRatio) + 'px'
|
|
|
+ });
|
|
|
+ this.updateSize();
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Called by wavesurfer when progress should be rendered
|
|
|
+ *
|
|
|
+ * @param {number} progress From 0 to 1
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "progress",
|
|
|
+ value: function progress(_progress) {
|
|
|
+ var minPxDelta = 1 / this.params.pixelRatio;
|
|
|
+ var pos = Math.round(_progress * this.width) * minPxDelta;
|
|
|
+
|
|
|
+ if (pos < this.lastPos || pos - this.lastPos >= minPxDelta) {
|
|
|
+ this.lastPos = pos;
|
|
|
+
|
|
|
+ if (this.params.scrollParent && this.params.autoCenter) {
|
|
|
+ var newPos = ~~(this.wrapper.scrollWidth * _progress);
|
|
|
+ this.recenterOnPosition(newPos, this.params.autoCenterImmediately);
|
|
|
+ }
|
|
|
+
|
|
|
+ this.updateProgress(pos);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * This is called when wavesurfer is destroyed
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "destroy",
|
|
|
+ value: function destroy() {
|
|
|
+ this.unAll();
|
|
|
+
|
|
|
+ if (this.wrapper) {
|
|
|
+ if (this.wrapper.parentNode == this.container) {
|
|
|
+ this.container.removeChild(this.wrapper);
|
|
|
+ }
|
|
|
+
|
|
|
+ this.wrapper = null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /* Renderer-specific methods */
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Called after cursor related params have changed.
|
|
|
+ *
|
|
|
+ * @abstract
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "updateCursor",
|
|
|
+ value: function updateCursor() {}
|
|
|
+ /**
|
|
|
+ * Called when the size of the container changes so the renderer can adjust
|
|
|
+ *
|
|
|
+ * @abstract
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "updateSize",
|
|
|
+ value: function updateSize() {}
|
|
|
+ /**
|
|
|
+ * Draw a waveform with bars
|
|
|
+ *
|
|
|
+ * @abstract
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Can also be an array of arrays for split channel
|
|
|
+ * rendering
|
|
|
+ * @param {number} channelIndex The index of the current channel. Normally
|
|
|
+ * should be 0
|
|
|
+ * @param {number} start The x-offset of the beginning of the area that
|
|
|
+ * should be rendered
|
|
|
+ * @param {number} end The x-offset of the end of the area that should be
|
|
|
+ * rendered
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "drawBars",
|
|
|
+ value: function drawBars(peaks, channelIndex, start, end) {}
|
|
|
+ /**
|
|
|
+ * Draw a waveform
|
|
|
+ *
|
|
|
+ * @abstract
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Can also be an array of arrays for split channel
|
|
|
+ * rendering
|
|
|
+ * @param {number} channelIndex The index of the current channel. Normally
|
|
|
+ * should be 0
|
|
|
+ * @param {number} start The x-offset of the beginning of the area that
|
|
|
+ * should be rendered
|
|
|
+ * @param {number} end The x-offset of the end of the area that should be
|
|
|
+ * rendered
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "drawWave",
|
|
|
+ value: function drawWave(peaks, channelIndex, start, end) {}
|
|
|
+ /**
|
|
|
+ * Clear the waveform
|
|
|
+ *
|
|
|
+ * @abstract
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "clearWave",
|
|
|
+ value: function clearWave() {}
|
|
|
+ /**
|
|
|
+ * Render the new progress
|
|
|
+ *
|
|
|
+ * @abstract
|
|
|
+ * @param {number} position X-Offset of progress position in pixels
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "updateProgress",
|
|
|
+ value: function updateProgress(position) {}
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return Drawer;
|
|
|
+}(util.Observer);
|
|
|
+
|
|
|
+exports.default = Drawer;
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/drawer.multicanvas.js":
|
|
|
+/*!***********************************!*\
|
|
|
+ !*** ./src/drawer.multicanvas.js ***!
|
|
|
+ \***********************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = void 0;
|
|
|
+
|
|
|
+var _drawer = _interopRequireDefault(__webpack_require__(/*! ./drawer */ "./src/drawer.js"));
|
|
|
+
|
|
|
+var util = _interopRequireWildcard(__webpack_require__(/*! ./util */ "./src/util/index.js"));
|
|
|
+
|
|
|
+var _drawer2 = _interopRequireDefault(__webpack_require__(/*! ./drawer.canvasentry */ "./src/drawer.canvasentry.js"));
|
|
|
+
|
|
|
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }
|
|
|
+
|
|
|
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
|
|
|
+
|
|
|
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
+
|
|
|
+function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
+
|
|
|
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
+
|
|
|
+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, descriptor.key, descriptor); } }
|
|
|
+
|
|
|
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
+
|
|
|
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
|
|
|
+
|
|
|
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
|
|
|
+
|
|
|
+function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
|
|
|
+
|
|
|
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
|
|
|
+
|
|
|
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
|
|
|
+
|
|
|
+function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
|
|
|
+
|
|
|
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
|
|
|
+
|
|
|
+/**
|
|
|
+ * MultiCanvas renderer for wavesurfer. Is currently the default and sole
|
|
|
+ * builtin renderer.
|
|
|
+ *
|
|
|
+ * A `MultiCanvas` consists of one or more `CanvasEntry` instances, depending
|
|
|
+ * on the zoom level.
|
|
|
+ */
|
|
|
+var MultiCanvas = /*#__PURE__*/function (_Drawer) {
|
|
|
+ _inherits(MultiCanvas, _Drawer);
|
|
|
+
|
|
|
+ var _super = _createSuper(MultiCanvas);
|
|
|
+
|
|
|
+ /**
|
|
|
+ * @param {HTMLElement} container The container node of the wavesurfer instance
|
|
|
+ * @param {WavesurferParams} params The wavesurfer initialisation options
|
|
|
+ */
|
|
|
+ function MultiCanvas(container, params) {
|
|
|
+ var _this;
|
|
|
+
|
|
|
+ _classCallCheck(this, MultiCanvas);
|
|
|
+
|
|
|
+ _this = _super.call(this, container, params);
|
|
|
+ /**
|
|
|
+ * @type {number}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.maxCanvasWidth = params.maxCanvasWidth;
|
|
|
+ /**
|
|
|
+ * @type {number}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.maxCanvasElementWidth = Math.round(params.maxCanvasWidth / params.pixelRatio);
|
|
|
+ /**
|
|
|
+ * Whether or not the progress wave is rendered. If the `waveColor`
|
|
|
+ * and `progressColor` are the same color it is not.
|
|
|
+ *
|
|
|
+ * @type {boolean}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.hasProgressCanvas = params.waveColor != params.progressColor;
|
|
|
+ /**
|
|
|
+ * @type {number}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.halfPixel = 0.5 / params.pixelRatio;
|
|
|
+ /**
|
|
|
+ * List of `CanvasEntry` instances.
|
|
|
+ *
|
|
|
+ * @type {Array}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.canvases = [];
|
|
|
+ /**
|
|
|
+ * @type {HTMLElement}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.progressWave = null;
|
|
|
+ /**
|
|
|
+ * Class used to generate entries.
|
|
|
+ *
|
|
|
+ * @type {function}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.EntryClass = _drawer2.default;
|
|
|
+ /**
|
|
|
+ * Canvas 2d context attributes.
|
|
|
+ *
|
|
|
+ * @type {object}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.canvasContextAttributes = params.drawingContextAttributes;
|
|
|
+ /**
|
|
|
+ * Overlap added between entries to prevent vertical white stripes
|
|
|
+ * between `canvas` elements.
|
|
|
+ *
|
|
|
+ * @type {number}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.overlap = 2 * Math.ceil(params.pixelRatio / 2);
|
|
|
+ /**
|
|
|
+ * The radius of the wave bars. Makes bars rounded
|
|
|
+ *
|
|
|
+ * @type {number}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.barRadius = params.barRadius || 0;
|
|
|
+ return _this;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Initialize the drawer
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _createClass(MultiCanvas, [{
|
|
|
+ key: "init",
|
|
|
+ value: function init() {
|
|
|
+ this.createWrapper();
|
|
|
+ this.createElements();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Create the canvas elements and style them
|
|
|
+ *
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "createElements",
|
|
|
+ value: function createElements() {
|
|
|
+ this.progressWave = this.wrapper.appendChild(this.style(document.createElement('wave'), {
|
|
|
+ position: 'absolute',
|
|
|
+ zIndex: 3,
|
|
|
+ left: 0,
|
|
|
+ top: 0,
|
|
|
+ bottom: 0,
|
|
|
+ overflow: 'hidden',
|
|
|
+ width: '0',
|
|
|
+ display: 'none',
|
|
|
+ boxSizing: 'border-box',
|
|
|
+ borderRightStyle: 'solid',
|
|
|
+ pointerEvents: 'none'
|
|
|
+ }));
|
|
|
+ this.addCanvas();
|
|
|
+ this.updateCursor();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Update cursor style
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "updateCursor",
|
|
|
+ value: function updateCursor() {
|
|
|
+ this.style(this.progressWave, {
|
|
|
+ borderRightWidth: this.params.cursorWidth + 'px',
|
|
|
+ borderRightColor: this.params.cursorColor
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Adjust to the updated size by adding or removing canvases
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "updateSize",
|
|
|
+ value: function updateSize() {
|
|
|
+ var _this2 = this;
|
|
|
+
|
|
|
+ var totalWidth = Math.round(this.width / this.params.pixelRatio);
|
|
|
+ var requiredCanvases = Math.ceil(totalWidth / (this.maxCanvasElementWidth + this.overlap)); // add required canvases
|
|
|
+
|
|
|
+ while (this.canvases.length < requiredCanvases) {
|
|
|
+ this.addCanvas();
|
|
|
+ } // remove older existing canvases, if any
|
|
|
+
|
|
|
+
|
|
|
+ while (this.canvases.length > requiredCanvases) {
|
|
|
+ this.removeCanvas();
|
|
|
+ }
|
|
|
+
|
|
|
+ var canvasWidth = this.maxCanvasWidth + this.overlap;
|
|
|
+ var lastCanvas = this.canvases.length - 1;
|
|
|
+ this.canvases.forEach(function (entry, i) {
|
|
|
+ if (i == lastCanvas) {
|
|
|
+ canvasWidth = _this2.width - _this2.maxCanvasWidth * lastCanvas;
|
|
|
+ }
|
|
|
+
|
|
|
+ _this2.updateDimensions(entry, canvasWidth, _this2.height);
|
|
|
+
|
|
|
+ entry.clearWave();
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Add a canvas to the canvas list
|
|
|
+ *
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "addCanvas",
|
|
|
+ value: function addCanvas() {
|
|
|
+ var entry = new this.EntryClass();
|
|
|
+ entry.canvasContextAttributes = this.canvasContextAttributes;
|
|
|
+ entry.hasProgressCanvas = this.hasProgressCanvas;
|
|
|
+ entry.halfPixel = this.halfPixel;
|
|
|
+ var leftOffset = this.maxCanvasElementWidth * this.canvases.length; // wave
|
|
|
+
|
|
|
+ entry.initWave(this.wrapper.appendChild(this.style(document.createElement('canvas'), {
|
|
|
+ position: 'absolute',
|
|
|
+ zIndex: 2,
|
|
|
+ left: leftOffset + 'px',
|
|
|
+ top: 0,
|
|
|
+ bottom: 0,
|
|
|
+ height: '100%',
|
|
|
+ pointerEvents: 'none'
|
|
|
+ }))); // progress
|
|
|
+
|
|
|
+ if (this.hasProgressCanvas) {
|
|
|
+ entry.initProgress(this.progressWave.appendChild(this.style(document.createElement('canvas'), {
|
|
|
+ position: 'absolute',
|
|
|
+ left: leftOffset + 'px',
|
|
|
+ top: 0,
|
|
|
+ bottom: 0,
|
|
|
+ height: '100%'
|
|
|
+ })));
|
|
|
+ }
|
|
|
+
|
|
|
+ this.canvases.push(entry);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Pop single canvas from the list
|
|
|
+ *
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "removeCanvas",
|
|
|
+ value: function removeCanvas() {
|
|
|
+ var lastEntry = this.canvases[this.canvases.length - 1]; // wave
|
|
|
+
|
|
|
+ lastEntry.wave.parentElement.removeChild(lastEntry.wave); // progress
|
|
|
+
|
|
|
+ if (this.hasProgressCanvas) {
|
|
|
+ lastEntry.progress.parentElement.removeChild(lastEntry.progress);
|
|
|
+ } // cleanup
|
|
|
+
|
|
|
+
|
|
|
+ if (lastEntry) {
|
|
|
+ lastEntry.destroy();
|
|
|
+ lastEntry = null;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.canvases.pop();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Update the dimensions of a canvas element
|
|
|
+ *
|
|
|
+ * @param {CanvasEntry} entry Target entry
|
|
|
+ * @param {number} width The new width of the element
|
|
|
+ * @param {number} height The new height of the element
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "updateDimensions",
|
|
|
+ value: function updateDimensions(entry, width, height) {
|
|
|
+ var elementWidth = Math.round(width / this.params.pixelRatio);
|
|
|
+ var totalWidth = Math.round(this.width / this.params.pixelRatio); // update canvas dimensions
|
|
|
+
|
|
|
+ entry.updateDimensions(elementWidth, totalWidth, width, height); // style element
|
|
|
+
|
|
|
+ this.style(this.progressWave, {
|
|
|
+ display: 'block'
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Clear the whole multi-canvas
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "clearWave",
|
|
|
+ value: function clearWave() {
|
|
|
+ var _this3 = this;
|
|
|
+
|
|
|
+ util.frame(function () {
|
|
|
+ _this3.canvases.forEach(function (entry) {
|
|
|
+ return entry.clearWave();
|
|
|
+ });
|
|
|
+ })();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Draw a waveform with bars
|
|
|
+ *
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Can also be an array of arrays
|
|
|
+ * for split channel rendering
|
|
|
+ * @param {number} channelIndex The index of the current channel. Normally
|
|
|
+ * should be 0. Must be an integer.
|
|
|
+ * @param {number} start The x-offset of the beginning of the area that
|
|
|
+ * should be rendered
|
|
|
+ * @param {number} end The x-offset of the end of the area that should be
|
|
|
+ * rendered
|
|
|
+ * @returns {void}
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "drawBars",
|
|
|
+ value: function drawBars(peaks, channelIndex, start, end) {
|
|
|
+ var _this4 = this;
|
|
|
+
|
|
|
+ return this.prepareDraw(peaks, channelIndex, start, end, function (_ref) {
|
|
|
+ var absmax = _ref.absmax,
|
|
|
+ hasMinVals = _ref.hasMinVals,
|
|
|
+ height = _ref.height,
|
|
|
+ offsetY = _ref.offsetY,
|
|
|
+ halfH = _ref.halfH,
|
|
|
+ peaks = _ref.peaks;
|
|
|
+
|
|
|
+ // if drawBars was called within ws.empty we don't pass a start and
|
|
|
+ // don't want anything to happen
|
|
|
+ if (start === undefined) {
|
|
|
+ return;
|
|
|
+ } // Skip every other value if there are negatives.
|
|
|
+
|
|
|
+
|
|
|
+ var peakIndexScale = hasMinVals ? 2 : 1;
|
|
|
+ var length = peaks.length / peakIndexScale;
|
|
|
+ var bar = _this4.params.barWidth * _this4.params.pixelRatio;
|
|
|
+ var gap = _this4.params.barGap === null ? Math.max(_this4.params.pixelRatio, ~~(bar / 2)) : Math.max(_this4.params.pixelRatio, _this4.params.barGap * _this4.params.pixelRatio);
|
|
|
+ var step = bar + gap;
|
|
|
+ var scale = length / _this4.width;
|
|
|
+ var first = start;
|
|
|
+ var last = end;
|
|
|
+ var i = first;
|
|
|
+
|
|
|
+ for (i; i < last; i += step) {
|
|
|
+ var peak = peaks[Math.floor(i * scale * peakIndexScale)] || 0;
|
|
|
+ var h = Math.round(peak / absmax * halfH);
|
|
|
+ /* in case of silences, allow the user to specify that we
|
|
|
+ * always draw *something* (normally a 1px high bar) */
|
|
|
+
|
|
|
+ if (h == 0 && _this4.params.barMinHeight) h = _this4.params.barMinHeight;
|
|
|
+
|
|
|
+ _this4.fillRect(i + _this4.halfPixel, halfH - h + offsetY, bar + _this4.halfPixel, h * 2, _this4.barRadius);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Draw a waveform
|
|
|
+ *
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Can also be an array of arrays
|
|
|
+ * for split channel rendering
|
|
|
+ * @param {number} channelIndex The index of the current channel. Normally
|
|
|
+ * should be 0
|
|
|
+ * @param {number?} start The x-offset of the beginning of the area that
|
|
|
+ * should be rendered (If this isn't set only a flat line is rendered)
|
|
|
+ * @param {number?} end The x-offset of the end of the area that should be
|
|
|
+ * rendered
|
|
|
+ * @returns {void}
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "drawWave",
|
|
|
+ value: function drawWave(peaks, channelIndex, start, end) {
|
|
|
+ var _this5 = this;
|
|
|
+
|
|
|
+ return this.prepareDraw(peaks, channelIndex, start, end, function (_ref2) {
|
|
|
+ var absmax = _ref2.absmax,
|
|
|
+ hasMinVals = _ref2.hasMinVals,
|
|
|
+ height = _ref2.height,
|
|
|
+ offsetY = _ref2.offsetY,
|
|
|
+ halfH = _ref2.halfH,
|
|
|
+ peaks = _ref2.peaks,
|
|
|
+ channelIndex = _ref2.channelIndex;
|
|
|
+
|
|
|
+ if (!hasMinVals) {
|
|
|
+ var reflectedPeaks = [];
|
|
|
+ var len = peaks.length;
|
|
|
+ var i = 0;
|
|
|
+
|
|
|
+ for (i; i < len; i++) {
|
|
|
+ reflectedPeaks[2 * i] = peaks[i];
|
|
|
+ reflectedPeaks[2 * i + 1] = -peaks[i];
|
|
|
+ }
|
|
|
+
|
|
|
+ peaks = reflectedPeaks;
|
|
|
+ } // if drawWave was called within ws.empty we don't pass a start and
|
|
|
+ // end and simply want a flat line
|
|
|
+
|
|
|
+
|
|
|
+ if (start !== undefined) {
|
|
|
+ _this5.drawLine(peaks, absmax, halfH, offsetY, start, end, channelIndex);
|
|
|
+ } // always draw a median line
|
|
|
+
|
|
|
+
|
|
|
+ _this5.fillRect(0, halfH + offsetY - _this5.halfPixel, _this5.width, _this5.halfPixel, _this5.barRadius);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Tell the canvas entries to render their portion of the waveform
|
|
|
+ *
|
|
|
+ * @param {number[]} peaks Peaks data
|
|
|
+ * @param {number} absmax Maximum peak value (absolute)
|
|
|
+ * @param {number} halfH Half the height of the waveform
|
|
|
+ * @param {number} offsetY Offset to the top
|
|
|
+ * @param {number} start The x-offset of the beginning of the area that
|
|
|
+ * should be rendered
|
|
|
+ * @param {number} end The x-offset of the end of the area that
|
|
|
+ * should be rendered
|
|
|
+ * @param {channelIndex} channelIndex The channel index of the line drawn
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "drawLine",
|
|
|
+ value: function drawLine(peaks, absmax, halfH, offsetY, start, end, channelIndex) {
|
|
|
+ var _this6 = this;
|
|
|
+
|
|
|
+ var _ref3 = this.params.splitChannelsOptions.channelColors[channelIndex] || {},
|
|
|
+ waveColor = _ref3.waveColor,
|
|
|
+ progressColor = _ref3.progressColor;
|
|
|
+
|
|
|
+ this.canvases.forEach(function (entry, i) {
|
|
|
+ _this6.setFillStyles(entry, waveColor, progressColor);
|
|
|
+
|
|
|
+ entry.drawLines(peaks, absmax, halfH, offsetY, start, end);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Draw a rectangle on the multi-canvas
|
|
|
+ *
|
|
|
+ * @param {number} x X-position of the rectangle
|
|
|
+ * @param {number} y Y-position of the rectangle
|
|
|
+ * @param {number} width Width of the rectangle
|
|
|
+ * @param {number} height Height of the rectangle
|
|
|
+ * @param {number} radius Radius of the rectangle
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "fillRect",
|
|
|
+ value: function fillRect(x, y, width, height, radius) {
|
|
|
+ var startCanvas = Math.floor(x / this.maxCanvasWidth);
|
|
|
+ var endCanvas = Math.min(Math.ceil((x + width) / this.maxCanvasWidth) + 1, this.canvases.length);
|
|
|
+ var i = startCanvas;
|
|
|
+
|
|
|
+ for (i; i < endCanvas; i++) {
|
|
|
+ var entry = this.canvases[i];
|
|
|
+ var leftOffset = i * this.maxCanvasWidth;
|
|
|
+ var intersection = {
|
|
|
+ x1: Math.max(x, i * this.maxCanvasWidth),
|
|
|
+ y1: y,
|
|
|
+ x2: Math.min(x + width, i * this.maxCanvasWidth + entry.wave.width),
|
|
|
+ y2: y + height
|
|
|
+ };
|
|
|
+
|
|
|
+ if (intersection.x1 < intersection.x2) {
|
|
|
+ this.setFillStyles(entry);
|
|
|
+ entry.fillRects(intersection.x1 - leftOffset, intersection.y1, intersection.x2 - intersection.x1, intersection.y2 - intersection.y1, radius);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Returns whether to hide the channel from being drawn based on params.
|
|
|
+ *
|
|
|
+ * @param {number} channelIndex The index of the current channel.
|
|
|
+ * @returns {bool} True to hide the channel, false to draw.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "hideChannel",
|
|
|
+ value: function hideChannel(channelIndex) {
|
|
|
+ return this.params.splitChannels && this.params.splitChannelsOptions.filterChannels.includes(channelIndex);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Performs preparation tasks and calculations which are shared by `drawBars`
|
|
|
+ * and `drawWave`
|
|
|
+ *
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Can also be an array of arrays for
|
|
|
+ * split channel rendering
|
|
|
+ * @param {number} channelIndex The index of the current channel. Normally
|
|
|
+ * should be 0
|
|
|
+ * @param {number?} start The x-offset of the beginning of the area that
|
|
|
+ * should be rendered. If this isn't set only a flat line is rendered
|
|
|
+ * @param {number?} end The x-offset of the end of the area that should be
|
|
|
+ * rendered
|
|
|
+ * @param {function} fn The render function to call, e.g. `drawWave`
|
|
|
+ * @param {number} drawIndex The index of the current channel after filtering.
|
|
|
+ * @returns {void}
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "prepareDraw",
|
|
|
+ value: function prepareDraw(peaks, channelIndex, start, end, fn, drawIndex) {
|
|
|
+ var _this7 = this;
|
|
|
+
|
|
|
+ return util.frame(function () {
|
|
|
+ // Split channels and call this function with the channelIndex set
|
|
|
+ if (peaks[0] instanceof Array) {
|
|
|
+ var channels = peaks;
|
|
|
+
|
|
|
+ if (_this7.params.splitChannels) {
|
|
|
+ var filteredChannels = channels.filter(function (c, i) {
|
|
|
+ return !_this7.hideChannel(i);
|
|
|
+ });
|
|
|
+
|
|
|
+ if (!_this7.params.splitChannelsOptions.overlay) {
|
|
|
+ _this7.setHeight(Math.max(filteredChannels.length, 1) * _this7.params.height * _this7.params.pixelRatio);
|
|
|
+ }
|
|
|
+
|
|
|
+ return channels.forEach(function (channelPeaks, i) {
|
|
|
+ return _this7.prepareDraw(channelPeaks, i, start, end, fn, filteredChannels.indexOf(channelPeaks));
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ peaks = channels[0];
|
|
|
+ } // Return and do not draw channel peaks if hidden.
|
|
|
+
|
|
|
+
|
|
|
+ if (_this7.hideChannel(channelIndex)) {
|
|
|
+ return;
|
|
|
+ } // calculate maximum modulation value, either from the barHeight
|
|
|
+ // parameter or if normalize=true from the largest value in the peak
|
|
|
+ // set
|
|
|
+
|
|
|
+
|
|
|
+ var absmax = 1 / _this7.params.barHeight;
|
|
|
+
|
|
|
+ if (_this7.params.normalize) {
|
|
|
+ var max = util.max(peaks);
|
|
|
+ var min = util.min(peaks);
|
|
|
+ absmax = -min > max ? -min : max;
|
|
|
+ } // Bar wave draws the bottom only as a reflection of the top,
|
|
|
+ // so we don't need negative values
|
|
|
+
|
|
|
+
|
|
|
+ var hasMinVals = [].some.call(peaks, function (val) {
|
|
|
+ return val < 0;
|
|
|
+ });
|
|
|
+ var height = _this7.params.height * _this7.params.pixelRatio;
|
|
|
+ var offsetY = height * drawIndex || 0;
|
|
|
+ var halfH = height / 2;
|
|
|
+ return fn({
|
|
|
+ absmax: absmax,
|
|
|
+ hasMinVals: hasMinVals,
|
|
|
+ height: height,
|
|
|
+ offsetY: offsetY,
|
|
|
+ halfH: halfH,
|
|
|
+ peaks: peaks,
|
|
|
+ channelIndex: channelIndex
|
|
|
+ });
|
|
|
+ })();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the fill styles for a certain entry (wave and progress)
|
|
|
+ *
|
|
|
+ * @param {CanvasEntry} entry Target entry
|
|
|
+ * @param {string} waveColor Wave color to draw this entry
|
|
|
+ * @param {string} progressColor Progress color to draw this entry
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setFillStyles",
|
|
|
+ value: function setFillStyles(entry) {
|
|
|
+ var waveColor = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.params.waveColor;
|
|
|
+ var progressColor = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.params.progressColor;
|
|
|
+ entry.setFillStyles(waveColor, progressColor);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Return image data of the multi-canvas
|
|
|
+ *
|
|
|
+ * When using a `type` of `'blob'`, this will return a `Promise`.
|
|
|
+ *
|
|
|
+ * @param {string} format='image/png' An optional value of a format type.
|
|
|
+ * @param {number} quality=0.92 An optional value between 0 and 1.
|
|
|
+ * @param {string} type='dataURL' Either 'dataURL' or 'blob'.
|
|
|
+ * @return {string|string[]|Promise} When using the default `'dataURL'`
|
|
|
+ * `type` this returns a single data URL or an array of data URLs,
|
|
|
+ * one for each canvas. When using the `'blob'` `type` this returns a
|
|
|
+ * `Promise` that resolves with an array of `Blob` instances, one for each
|
|
|
+ * canvas.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getImage",
|
|
|
+ value: function getImage(format, quality, type) {
|
|
|
+ if (type === 'blob') {
|
|
|
+ return Promise.all(this.canvases.map(function (entry) {
|
|
|
+ return entry.getImage(format, quality, type);
|
|
|
+ }));
|
|
|
+ } else if (type === 'dataURL') {
|
|
|
+ var images = this.canvases.map(function (entry) {
|
|
|
+ return entry.getImage(format, quality, type);
|
|
|
+ });
|
|
|
+ return images.length > 1 ? images : images[0];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Render the new progress
|
|
|
+ *
|
|
|
+ * @param {number} position X-offset of progress position in pixels
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "updateProgress",
|
|
|
+ value: function updateProgress(position) {
|
|
|
+ this.style(this.progressWave, {
|
|
|
+ width: position + 'px'
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return MultiCanvas;
|
|
|
+}(_drawer.default);
|
|
|
+
|
|
|
+exports.default = MultiCanvas;
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/mediaelement-webaudio.js":
|
|
|
+/*!**************************************!*\
|
|
|
+ !*** ./src/mediaelement-webaudio.js ***!
|
|
|
+ \**************************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = void 0;
|
|
|
+
|
|
|
+var _mediaelement = _interopRequireDefault(__webpack_require__(/*! ./mediaelement */ "./src/mediaelement.js"));
|
|
|
+
|
|
|
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
+
|
|
|
+function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
+
|
|
|
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
+
|
|
|
+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, descriptor.key, descriptor); } }
|
|
|
+
|
|
|
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
+
|
|
|
+function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
|
|
|
+
|
|
|
+function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
|
|
|
+
|
|
|
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
|
|
|
+
|
|
|
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
|
|
|
+
|
|
|
+function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
|
|
|
+
|
|
|
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
|
|
|
+
|
|
|
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
|
|
|
+
|
|
|
+function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
|
|
|
+
|
|
|
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
|
|
|
+
|
|
|
+/**
|
|
|
+ * MediaElementWebAudio backend: load audio via an HTML5 audio tag, but playback with the WebAudio API.
|
|
|
+ * The advantage here is that the html5 <audio> tag can perform range requests on the server and not
|
|
|
+ * buffer the entire file in one request, and you still get the filtering and scripting functionality
|
|
|
+ * of the webaudio API.
|
|
|
+ * Note that in order to use range requests and prevent buffering, you must provide peak data.
|
|
|
+ *
|
|
|
+ * @since 3.2.0
|
|
|
+ */
|
|
|
+var MediaElementWebAudio = /*#__PURE__*/function (_MediaElement) {
|
|
|
+ _inherits(MediaElementWebAudio, _MediaElement);
|
|
|
+
|
|
|
+ var _super = _createSuper(MediaElementWebAudio);
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Construct the backend
|
|
|
+ *
|
|
|
+ * @param {WavesurferParams} params Wavesurfer parameters
|
|
|
+ */
|
|
|
+ function MediaElementWebAudio(params) {
|
|
|
+ var _this;
|
|
|
+
|
|
|
+ _classCallCheck(this, MediaElementWebAudio);
|
|
|
+
|
|
|
+ _this = _super.call(this, params);
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.params = params;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.sourceMediaElement = null;
|
|
|
+ return _this;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Initialise the backend, called in `wavesurfer.createBackend()`
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _createClass(MediaElementWebAudio, [{
|
|
|
+ key: "init",
|
|
|
+ value: function init() {
|
|
|
+ this.setPlaybackRate(this.params.audioRate);
|
|
|
+ this.createTimer();
|
|
|
+ this.createVolumeNode();
|
|
|
+ this.createScriptNode();
|
|
|
+ this.createAnalyserNode();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Private method called by both `load` (from url)
|
|
|
+ * and `loadElt` (existing media element) methods.
|
|
|
+ *
|
|
|
+ * @param {HTMLMediaElement} media HTML5 Audio or Video element
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Array of peak data
|
|
|
+ * @param {string} preload HTML 5 preload attribute value
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_load",
|
|
|
+ value: function _load(media, peaks, preload) {
|
|
|
+ _get(_getPrototypeOf(MediaElementWebAudio.prototype), "_load", this).call(this, media, peaks, preload);
|
|
|
+
|
|
|
+ this.createMediaElementSource(media);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Create MediaElementSource node
|
|
|
+ *
|
|
|
+ * @since 3.2.0
|
|
|
+ * @param {HTMLMediaElement} mediaElement HTML5 Audio to load
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "createMediaElementSource",
|
|
|
+ value: function createMediaElementSource(mediaElement) {
|
|
|
+ this.sourceMediaElement = this.ac.createMediaElementSource(mediaElement);
|
|
|
+ this.sourceMediaElement.connect(this.analyser);
|
|
|
+ }
|
|
|
+ }, {
|
|
|
+ key: "play",
|
|
|
+ value: function play(start, end) {
|
|
|
+ this.resumeAudioContext();
|
|
|
+ return _get(_getPrototypeOf(MediaElementWebAudio.prototype), "play", this).call(this, start, end);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * This is called when wavesurfer is destroyed
|
|
|
+ *
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "destroy",
|
|
|
+ value: function destroy() {
|
|
|
+ _get(_getPrototypeOf(MediaElementWebAudio.prototype), "destroy", this).call(this);
|
|
|
+
|
|
|
+ this.destroyWebAudio();
|
|
|
+ }
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return MediaElementWebAudio;
|
|
|
+}(_mediaelement.default);
|
|
|
+
|
|
|
+exports.default = MediaElementWebAudio;
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/mediaelement.js":
|
|
|
+/*!*****************************!*\
|
|
|
+ !*** ./src/mediaelement.js ***!
|
|
|
+ \*****************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = void 0;
|
|
|
+
|
|
|
+var _webaudio = _interopRequireDefault(__webpack_require__(/*! ./webaudio */ "./src/webaudio.js"));
|
|
|
+
|
|
|
+var util = _interopRequireWildcard(__webpack_require__(/*! ./util */ "./src/util/index.js"));
|
|
|
+
|
|
|
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }
|
|
|
+
|
|
|
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
|
|
|
+
|
|
|
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
+
|
|
|
+function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
+
|
|
|
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
+
|
|
|
+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, descriptor.key, descriptor); } }
|
|
|
+
|
|
|
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
+
|
|
|
+function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
|
|
|
+
|
|
|
+function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
|
|
|
+
|
|
|
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
|
|
|
+
|
|
|
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
|
|
|
+
|
|
|
+function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
|
|
|
+
|
|
|
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
|
|
|
+
|
|
|
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
|
|
|
+
|
|
|
+function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
|
|
|
+
|
|
|
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
|
|
|
+
|
|
|
+/**
|
|
|
+ * MediaElement backend
|
|
|
+ */
|
|
|
+var MediaElement = /*#__PURE__*/function (_WebAudio) {
|
|
|
+ _inherits(MediaElement, _WebAudio);
|
|
|
+
|
|
|
+ var _super = _createSuper(MediaElement);
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Construct the backend
|
|
|
+ *
|
|
|
+ * @param {WavesurferParams} params Wavesurfer parameters
|
|
|
+ */
|
|
|
+ function MediaElement(params) {
|
|
|
+ var _this;
|
|
|
+
|
|
|
+ _classCallCheck(this, MediaElement);
|
|
|
+
|
|
|
+ _this = _super.call(this, params);
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.params = params;
|
|
|
+ /**
|
|
|
+ * Initially a dummy media element to catch errors. Once `_load` is
|
|
|
+ * called, this will contain the actual `HTMLMediaElement`.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.media = {
|
|
|
+ currentTime: 0,
|
|
|
+ duration: 0,
|
|
|
+ paused: true,
|
|
|
+ playbackRate: 1,
|
|
|
+ play: function play() {},
|
|
|
+ pause: function pause() {},
|
|
|
+ volume: 0
|
|
|
+ };
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.mediaType = params.mediaType.toLowerCase();
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.elementPosition = params.elementPosition;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.peaks = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.playbackRate = 1;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.volume = 1;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.isMuted = false;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.buffer = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.onPlayEnd = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.mediaListeners = {};
|
|
|
+ return _this;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Initialise the backend, called in `wavesurfer.createBackend()`
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _createClass(MediaElement, [{
|
|
|
+ key: "init",
|
|
|
+ value: function init() {
|
|
|
+ this.setPlaybackRate(this.params.audioRate);
|
|
|
+ this.createTimer();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Attach event listeners to media element.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_setupMediaListeners",
|
|
|
+ value: function _setupMediaListeners() {
|
|
|
+ var _this2 = this;
|
|
|
+
|
|
|
+ this.mediaListeners.error = function () {
|
|
|
+ _this2.fireEvent('error', 'Error loading media element');
|
|
|
+ };
|
|
|
+
|
|
|
+ this.mediaListeners.canplay = function () {
|
|
|
+ _this2.fireEvent('canplay');
|
|
|
+ };
|
|
|
+
|
|
|
+ this.mediaListeners.ended = function () {
|
|
|
+ _this2.fireEvent('finish');
|
|
|
+ }; // listen to and relay play, pause and seeked events to enable
|
|
|
+ // playback control from the external media element
|
|
|
+
|
|
|
+
|
|
|
+ this.mediaListeners.play = function () {
|
|
|
+ _this2.fireEvent('play');
|
|
|
+ };
|
|
|
+
|
|
|
+ this.mediaListeners.pause = function () {
|
|
|
+ _this2.fireEvent('pause');
|
|
|
+ };
|
|
|
+
|
|
|
+ this.mediaListeners.seeked = function (event) {
|
|
|
+ _this2.fireEvent('seek');
|
|
|
+ };
|
|
|
+
|
|
|
+ this.mediaListeners.volumechange = function (event) {
|
|
|
+ _this2.isMuted = _this2.media.muted;
|
|
|
+
|
|
|
+ if (_this2.isMuted) {
|
|
|
+ _this2.volume = 0;
|
|
|
+ } else {
|
|
|
+ _this2.volume = _this2.media.volume;
|
|
|
+ }
|
|
|
+
|
|
|
+ _this2.fireEvent('volume');
|
|
|
+ }; // reset event listeners
|
|
|
+
|
|
|
+
|
|
|
+ Object.keys(this.mediaListeners).forEach(function (id) {
|
|
|
+ _this2.media.removeEventListener(id, _this2.mediaListeners[id]);
|
|
|
+
|
|
|
+ _this2.media.addEventListener(id, _this2.mediaListeners[id]);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Create a timer to provide a more precise `audioprocess` event.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "createTimer",
|
|
|
+ value: function createTimer() {
|
|
|
+ var _this3 = this;
|
|
|
+
|
|
|
+ var onAudioProcess = function onAudioProcess() {
|
|
|
+ if (_this3.isPaused()) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ _this3.fireEvent('audioprocess', _this3.getCurrentTime()); // Call again in the next frame
|
|
|
+
|
|
|
+
|
|
|
+ util.frame(onAudioProcess)();
|
|
|
+ };
|
|
|
+
|
|
|
+ this.on('play', onAudioProcess); // Update the progress one more time to prevent it from being stuck in
|
|
|
+ // case of lower framerates
|
|
|
+
|
|
|
+ this.on('pause', function () {
|
|
|
+ _this3.fireEvent('audioprocess', _this3.getCurrentTime());
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Create media element with url as its source,
|
|
|
+ * and append to container element.
|
|
|
+ *
|
|
|
+ * @param {string} url Path to media file
|
|
|
+ * @param {HTMLElement} container HTML element
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Array of peak data
|
|
|
+ * @param {string} preload HTML 5 preload attribute value
|
|
|
+ * @throws Will throw an error if the `url` argument is not a valid media
|
|
|
+ * element.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "load",
|
|
|
+ value: function load(url, container, peaks, preload) {
|
|
|
+ var media = document.createElement(this.mediaType);
|
|
|
+ media.controls = this.params.mediaControls;
|
|
|
+ media.autoplay = this.params.autoplay || false;
|
|
|
+ media.preload = preload == null ? 'auto' : preload;
|
|
|
+ media.src = url;
|
|
|
+ media.style.width = '100%';
|
|
|
+ var prevMedia = container.querySelector(this.mediaType);
|
|
|
+
|
|
|
+ if (prevMedia) {
|
|
|
+ container.removeChild(prevMedia);
|
|
|
+ }
|
|
|
+
|
|
|
+ container.appendChild(media);
|
|
|
+
|
|
|
+ this._load(media, peaks, preload);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Load existing media element.
|
|
|
+ *
|
|
|
+ * @param {HTMLMediaElement} elt HTML5 Audio or Video element
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Array of peak data
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "loadElt",
|
|
|
+ value: function loadElt(elt, peaks) {
|
|
|
+ elt.controls = this.params.mediaControls;
|
|
|
+ elt.autoplay = this.params.autoplay || false;
|
|
|
+
|
|
|
+ this._load(elt, peaks, elt.preload);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Method called by both `load` (from url)
|
|
|
+ * and `loadElt` (existing media element) methods.
|
|
|
+ *
|
|
|
+ * @param {HTMLMediaElement} media HTML5 Audio or Video element
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Array of peak data
|
|
|
+ * @param {string} preload HTML 5 preload attribute value
|
|
|
+ * @throws Will throw an error if the `media` argument is not a valid media
|
|
|
+ * element.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_load",
|
|
|
+ value: function _load(media, peaks, preload) {
|
|
|
+ // verify media element is valid
|
|
|
+ if (!(media instanceof HTMLMediaElement) || typeof media.addEventListener === 'undefined') {
|
|
|
+ throw new Error('media parameter is not a valid media element');
|
|
|
+ } // load must be called manually on iOS, otherwise peaks won't draw
|
|
|
+ // until a user interaction triggers load --> 'ready' event
|
|
|
+ //
|
|
|
+ // note that we avoid calling media.load here when given peaks and preload == 'none'
|
|
|
+ // as this almost always triggers some browser fetch of the media.
|
|
|
+
|
|
|
+
|
|
|
+ if (typeof media.load == 'function' && !(peaks && preload == 'none')) {
|
|
|
+ // Resets the media element and restarts the media resource. Any
|
|
|
+ // pending events are discarded. How much media data is fetched is
|
|
|
+ // still affected by the preload attribute.
|
|
|
+ media.load();
|
|
|
+ }
|
|
|
+
|
|
|
+ this.media = media;
|
|
|
+
|
|
|
+ this._setupMediaListeners();
|
|
|
+
|
|
|
+ this.peaks = peaks;
|
|
|
+ this.onPlayEnd = null;
|
|
|
+ this.buffer = null;
|
|
|
+ this.isMuted = media.muted;
|
|
|
+ this.setPlaybackRate(this.playbackRate);
|
|
|
+ this.setVolume(this.volume);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Used by `wavesurfer.isPlaying()` and `wavesurfer.playPause()`
|
|
|
+ *
|
|
|
+ * @return {boolean} Media paused or not
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "isPaused",
|
|
|
+ value: function isPaused() {
|
|
|
+ return !this.media || this.media.paused;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Used by `wavesurfer.getDuration()`
|
|
|
+ *
|
|
|
+ * @return {number} Duration
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getDuration",
|
|
|
+ value: function getDuration() {
|
|
|
+ if (this.explicitDuration) {
|
|
|
+ return this.explicitDuration;
|
|
|
+ }
|
|
|
+
|
|
|
+ var duration = (this.buffer || this.media).duration;
|
|
|
+
|
|
|
+ if (duration >= Infinity) {
|
|
|
+ // streaming audio
|
|
|
+ duration = this.media.seekable.end(0);
|
|
|
+ }
|
|
|
+
|
|
|
+ return duration;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Returns the current time in seconds relative to the audio-clip's
|
|
|
+ * duration.
|
|
|
+ *
|
|
|
+ * @return {number} Current time
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getCurrentTime",
|
|
|
+ value: function getCurrentTime() {
|
|
|
+ return this.media && this.media.currentTime;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the position from 0 to 1
|
|
|
+ *
|
|
|
+ * @return {number} Current position
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getPlayedPercents",
|
|
|
+ value: function getPlayedPercents() {
|
|
|
+ return this.getCurrentTime() / this.getDuration() || 0;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the audio source playback rate.
|
|
|
+ *
|
|
|
+ * @return {number} Playback rate
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getPlaybackRate",
|
|
|
+ value: function getPlaybackRate() {
|
|
|
+ return this.playbackRate || this.media.playbackRate;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the audio source playback rate.
|
|
|
+ *
|
|
|
+ * @param {number} value Playback rate
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setPlaybackRate",
|
|
|
+ value: function setPlaybackRate(value) {
|
|
|
+ this.playbackRate = value || 1;
|
|
|
+ this.media.playbackRate = this.playbackRate;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Used by `wavesurfer.seekTo()`
|
|
|
+ *
|
|
|
+ * @param {number} start Position to start at in seconds
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "seekTo",
|
|
|
+ value: function seekTo(start) {
|
|
|
+ if (start != null) {
|
|
|
+ this.media.currentTime = start;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.clearPlayEnd();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Plays the loaded audio region.
|
|
|
+ *
|
|
|
+ * @param {number} start Start offset in seconds, relative to the beginning
|
|
|
+ * of a clip.
|
|
|
+ * @param {number} end When to stop, relative to the beginning of a clip.
|
|
|
+ * @emits MediaElement#play
|
|
|
+ * @return {Promise} Result
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "play",
|
|
|
+ value: function play(start, end) {
|
|
|
+ this.seekTo(start);
|
|
|
+ var promise = this.media.play();
|
|
|
+ end && this.setPlayEnd(end);
|
|
|
+ return promise;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Pauses the loaded audio.
|
|
|
+ *
|
|
|
+ * @emits MediaElement#pause
|
|
|
+ * @return {Promise} Result
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "pause",
|
|
|
+ value: function pause() {
|
|
|
+ var promise;
|
|
|
+
|
|
|
+ if (this.media) {
|
|
|
+ promise = this.media.pause();
|
|
|
+ }
|
|
|
+
|
|
|
+ this.clearPlayEnd();
|
|
|
+ return promise;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the play end
|
|
|
+ *
|
|
|
+ * @param {number} end Where to end
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setPlayEnd",
|
|
|
+ value: function setPlayEnd(end) {
|
|
|
+ var _this4 = this;
|
|
|
+
|
|
|
+ this.clearPlayEnd();
|
|
|
+
|
|
|
+ this._onPlayEnd = function (time) {
|
|
|
+ if (time >= end) {
|
|
|
+ _this4.pause();
|
|
|
+
|
|
|
+ _this4.seekTo(end);
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ this.on('audioprocess', this._onPlayEnd);
|
|
|
+ }
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "clearPlayEnd",
|
|
|
+ value: function clearPlayEnd() {
|
|
|
+ if (this._onPlayEnd) {
|
|
|
+ this.un('audioprocess', this._onPlayEnd);
|
|
|
+ this._onPlayEnd = null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Compute the max and min value of the waveform when broken into
|
|
|
+ * <length> subranges.
|
|
|
+ *
|
|
|
+ * @param {number} length How many subranges to break the waveform into.
|
|
|
+ * @param {number} first First sample in the required range.
|
|
|
+ * @param {number} last Last sample in the required range.
|
|
|
+ * @return {number[]|Number.<Array[]>} Array of 2*<length> peaks or array of
|
|
|
+ * arrays of peaks consisting of (max, min) values for each subrange.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getPeaks",
|
|
|
+ value: function getPeaks(length, first, last) {
|
|
|
+ if (this.buffer) {
|
|
|
+ return _get(_getPrototypeOf(MediaElement.prototype), "getPeaks", this).call(this, length, first, last);
|
|
|
+ }
|
|
|
+
|
|
|
+ return this.peaks || [];
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the sink id for the media player
|
|
|
+ *
|
|
|
+ * @param {string} deviceId String value representing audio device id.
|
|
|
+ * @returns {Promise} A Promise that resolves to `undefined` when there
|
|
|
+ * are no errors.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setSinkId",
|
|
|
+ value: function setSinkId(deviceId) {
|
|
|
+ if (deviceId) {
|
|
|
+ if (!this.media.setSinkId) {
|
|
|
+ return Promise.reject(new Error('setSinkId is not supported in your browser'));
|
|
|
+ }
|
|
|
+
|
|
|
+ return this.media.setSinkId(deviceId);
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.reject(new Error('Invalid deviceId: ' + deviceId));
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the current volume
|
|
|
+ *
|
|
|
+ * @return {number} value A floating point value between 0 and 1.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getVolume",
|
|
|
+ value: function getVolume() {
|
|
|
+ return this.volume;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the audio volume
|
|
|
+ *
|
|
|
+ * @param {number} value A floating point value between 0 and 1.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setVolume",
|
|
|
+ value: function setVolume(value) {
|
|
|
+ this.volume = value; // no need to change when it's already at that volume
|
|
|
+
|
|
|
+ if (this.media.volume !== this.volume) {
|
|
|
+ this.media.volume = this.volume;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Enable or disable muted audio
|
|
|
+ *
|
|
|
+ * @since 4.0.0
|
|
|
+ * @param {boolean} muted Specify `true` to mute audio.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setMute",
|
|
|
+ value: function setMute(muted) {
|
|
|
+ // This causes a volume change to be emitted too through the
|
|
|
+ // volumechange event listener.
|
|
|
+ this.isMuted = this.media.muted = muted;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * This is called when wavesurfer is destroyed
|
|
|
+ *
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "destroy",
|
|
|
+ value: function destroy() {
|
|
|
+ var _this5 = this;
|
|
|
+
|
|
|
+ this.pause();
|
|
|
+ this.unAll();
|
|
|
+ this.destroyed = true; // cleanup media event listeners
|
|
|
+
|
|
|
+ Object.keys(this.mediaListeners).forEach(function (id) {
|
|
|
+ if (_this5.media) {
|
|
|
+ _this5.media.removeEventListener(id, _this5.mediaListeners[id]);
|
|
|
+ }
|
|
|
+ });
|
|
|
+
|
|
|
+ if (this.params.removeMediaElementOnDestroy && this.media && this.media.parentNode) {
|
|
|
+ this.media.parentNode.removeChild(this.media);
|
|
|
+ }
|
|
|
+
|
|
|
+ this.media = null;
|
|
|
+ }
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return MediaElement;
|
|
|
+}(_webaudio.default);
|
|
|
+
|
|
|
+exports.default = MediaElement;
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/peakcache.js":
|
|
|
+/*!**************************!*\
|
|
|
+ !*** ./src/peakcache.js ***!
|
|
|
+ \**************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = void 0;
|
|
|
+
|
|
|
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
+
|
|
|
+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, descriptor.key, descriptor); } }
|
|
|
+
|
|
|
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
+
|
|
|
+/**
|
|
|
+ * Caches the decoded peaks data to improve rendering speed for large audio
|
|
|
+ *
|
|
|
+ * Is used if the option parameter `partialRender` is set to `true`
|
|
|
+ */
|
|
|
+var PeakCache = /*#__PURE__*/function () {
|
|
|
+ /**
|
|
|
+ * Instantiate cache
|
|
|
+ */
|
|
|
+ function PeakCache() {
|
|
|
+ _classCallCheck(this, PeakCache);
|
|
|
+
|
|
|
+ this.clearPeakCache();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Empty the cache
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _createClass(PeakCache, [{
|
|
|
+ key: "clearPeakCache",
|
|
|
+ value: function clearPeakCache() {
|
|
|
+ /**
|
|
|
+ * Flat array with entries that are always in pairs to mark the
|
|
|
+ * beginning and end of each subrange. This is a convenience so we can
|
|
|
+ * iterate over the pairs for easy set difference operations.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+ this.peakCacheRanges = [];
|
|
|
+ /**
|
|
|
+ * Length of the entire cachable region, used for resetting the cache
|
|
|
+ * when this changes (zoom events, for instance).
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ this.peakCacheLength = -1;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Add a range of peaks to the cache
|
|
|
+ *
|
|
|
+ * @param {number} length The length of the range
|
|
|
+ * @param {number} start The x offset of the start of the range
|
|
|
+ * @param {number} end The x offset of the end of the range
|
|
|
+ * @return {Number.<Array[]>} Array with arrays of numbers
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "addRangeToPeakCache",
|
|
|
+ value: function addRangeToPeakCache(length, start, end) {
|
|
|
+ if (length != this.peakCacheLength) {
|
|
|
+ this.clearPeakCache();
|
|
|
+ this.peakCacheLength = length;
|
|
|
+ } // Return ranges that weren't in the cache before the call.
|
|
|
+
|
|
|
+
|
|
|
+ var uncachedRanges = [];
|
|
|
+ var i = 0; // Skip ranges before the current start.
|
|
|
+
|
|
|
+ while (i < this.peakCacheRanges.length && this.peakCacheRanges[i] < start) {
|
|
|
+ i++;
|
|
|
+ } // If |i| is even, |start| falls after an existing range. Otherwise,
|
|
|
+ // |start| falls between an existing range, and the uncached region
|
|
|
+ // starts when we encounter the next node in |peakCacheRanges| or
|
|
|
+ // |end|, whichever comes first.
|
|
|
+
|
|
|
+
|
|
|
+ if (i % 2 == 0) {
|
|
|
+ uncachedRanges.push(start);
|
|
|
+ }
|
|
|
+
|
|
|
+ while (i < this.peakCacheRanges.length && this.peakCacheRanges[i] <= end) {
|
|
|
+ uncachedRanges.push(this.peakCacheRanges[i]);
|
|
|
+ i++;
|
|
|
+ } // If |i| is even, |end| is after all existing ranges.
|
|
|
+
|
|
|
+
|
|
|
+ if (i % 2 == 0) {
|
|
|
+ uncachedRanges.push(end);
|
|
|
+ } // Filter out the 0-length ranges.
|
|
|
+
|
|
|
+
|
|
|
+ uncachedRanges = uncachedRanges.filter(function (item, pos, arr) {
|
|
|
+ if (pos == 0) {
|
|
|
+ return item != arr[pos + 1];
|
|
|
+ } else if (pos == arr.length - 1) {
|
|
|
+ return item != arr[pos - 1];
|
|
|
+ }
|
|
|
+
|
|
|
+ return item != arr[pos - 1] && item != arr[pos + 1];
|
|
|
+ }); // Merge the two ranges together, uncachedRanges will either contain
|
|
|
+ // wholly new points, or duplicates of points in peakCacheRanges. If
|
|
|
+ // duplicates are detected, remove both and extend the range.
|
|
|
+
|
|
|
+ this.peakCacheRanges = this.peakCacheRanges.concat(uncachedRanges);
|
|
|
+ this.peakCacheRanges = this.peakCacheRanges.sort(function (a, b) {
|
|
|
+ return a - b;
|
|
|
+ }).filter(function (item, pos, arr) {
|
|
|
+ if (pos == 0) {
|
|
|
+ return item != arr[pos + 1];
|
|
|
+ } else if (pos == arr.length - 1) {
|
|
|
+ return item != arr[pos - 1];
|
|
|
+ }
|
|
|
+
|
|
|
+ return item != arr[pos - 1] && item != arr[pos + 1];
|
|
|
+ }); // Push the uncached ranges into an array of arrays for ease of
|
|
|
+ // iteration in the functions that call this.
|
|
|
+
|
|
|
+ var uncachedRangePairs = [];
|
|
|
+
|
|
|
+ for (i = 0; i < uncachedRanges.length; i += 2) {
|
|
|
+ uncachedRangePairs.push([uncachedRanges[i], uncachedRanges[i + 1]]);
|
|
|
+ }
|
|
|
+
|
|
|
+ return uncachedRangePairs;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * For testing
|
|
|
+ *
|
|
|
+ * @return {Number.<Array[]>} Array with arrays of numbers
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getCacheRanges",
|
|
|
+ value: function getCacheRanges() {
|
|
|
+ var peakCacheRangePairs = [];
|
|
|
+ var i;
|
|
|
+
|
|
|
+ for (i = 0; i < this.peakCacheRanges.length; i += 2) {
|
|
|
+ peakCacheRangePairs.push([this.peakCacheRanges[i], this.peakCacheRanges[i + 1]]);
|
|
|
+ }
|
|
|
+
|
|
|
+ return peakCacheRangePairs;
|
|
|
+ }
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return PeakCache;
|
|
|
+}();
|
|
|
+
|
|
|
+exports.default = PeakCache;
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/util/clamp.js":
|
|
|
+/*!***************************!*\
|
|
|
+ !*** ./src/util/clamp.js ***!
|
|
|
+ \***************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = clamp;
|
|
|
+
|
|
|
+/**
|
|
|
+ * Returns a number limited to the given range.
|
|
|
+ *
|
|
|
+ * @param {number} val The number to be limited to a range
|
|
|
+ * @param {number} min The lower boundary of the limit range
|
|
|
+ * @param {number} max The upper boundary of the limit range
|
|
|
+ * @returns {number} A number in the range [min, max]
|
|
|
+ */
|
|
|
+function clamp(val, min, max) {
|
|
|
+ return Math.min(Math.max(min, val), max);
|
|
|
+}
|
|
|
+
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/util/fetch.js":
|
|
|
+/*!***************************!*\
|
|
|
+ !*** ./src/util/fetch.js ***!
|
|
|
+ \***************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = fetchFile;
|
|
|
+
|
|
|
+var _observer = _interopRequireDefault(__webpack_require__(/*! ./observer */ "./src/util/observer.js"));
|
|
|
+
|
|
|
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
+
|
|
|
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
+
|
|
|
+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, descriptor.key, descriptor); } }
|
|
|
+
|
|
|
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
+
|
|
|
+var ProgressHandler = /*#__PURE__*/function () {
|
|
|
+ /**
|
|
|
+ * Instantiate ProgressHandler
|
|
|
+ *
|
|
|
+ * @param {Observer} instance The `fetchFile` observer instance.
|
|
|
+ * @param {Number} contentLength Content length.
|
|
|
+ * @param {Response} response Response object.
|
|
|
+ */
|
|
|
+ function ProgressHandler(instance, contentLength, response) {
|
|
|
+ _classCallCheck(this, ProgressHandler);
|
|
|
+
|
|
|
+ this.instance = instance;
|
|
|
+ this.instance._reader = response.body.getReader();
|
|
|
+ this.total = parseInt(contentLength, 10);
|
|
|
+ this.loaded = 0;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * A method that is called once, immediately after the `ReadableStream``
|
|
|
+ * is constructed.
|
|
|
+ *
|
|
|
+ * @param {ReadableStreamDefaultController} controller Controller instance
|
|
|
+ * used to control the stream.
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _createClass(ProgressHandler, [{
|
|
|
+ key: "start",
|
|
|
+ value: function start(controller) {
|
|
|
+ var _this = this;
|
|
|
+
|
|
|
+ var read = function read() {
|
|
|
+ // instance._reader.read() returns a promise that resolves
|
|
|
+ // when a value has been received
|
|
|
+ _this.instance._reader.read().then(function (_ref) {
|
|
|
+ var done = _ref.done,
|
|
|
+ value = _ref.value;
|
|
|
+
|
|
|
+ // result objects contain two properties:
|
|
|
+ // done - true if the stream has already given you all its data.
|
|
|
+ // value - some data. Always undefined when done is true.
|
|
|
+ if (done) {
|
|
|
+ // ensure onProgress called when content-length=0
|
|
|
+ if (_this.total === 0) {
|
|
|
+ _this.instance.onProgress.call(_this.instance, {
|
|
|
+ loaded: _this.loaded,
|
|
|
+ total: _this.total,
|
|
|
+ lengthComputable: false
|
|
|
+ });
|
|
|
+ } // no more data needs to be consumed, close the stream
|
|
|
+
|
|
|
+
|
|
|
+ controller.close();
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ _this.loaded += value.byteLength;
|
|
|
+
|
|
|
+ _this.instance.onProgress.call(_this.instance, {
|
|
|
+ loaded: _this.loaded,
|
|
|
+ total: _this.total,
|
|
|
+ lengthComputable: !(_this.total === 0)
|
|
|
+ }); // enqueue the next data chunk into our target stream
|
|
|
+
|
|
|
+
|
|
|
+ controller.enqueue(value);
|
|
|
+ read();
|
|
|
+ }).catch(function (error) {
|
|
|
+ controller.error(error);
|
|
|
+ });
|
|
|
+ };
|
|
|
+
|
|
|
+ read();
|
|
|
+ }
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return ProgressHandler;
|
|
|
+}();
|
|
|
+/**
|
|
|
+ * Load a file using `fetch`.
|
|
|
+ *
|
|
|
+ * @param {object} options Request options to use. See example below.
|
|
|
+ * @returns {Observer} Observer instance
|
|
|
+ * @example
|
|
|
+ * // default options
|
|
|
+ * let options = {
|
|
|
+ * url: undefined,
|
|
|
+ * method: 'GET',
|
|
|
+ * mode: 'cors',
|
|
|
+ * credentials: 'same-origin',
|
|
|
+ * cache: 'default',
|
|
|
+ * responseType: 'json',
|
|
|
+ * requestHeaders: [],
|
|
|
+ * redirect: 'follow',
|
|
|
+ * referrer: 'client'
|
|
|
+ * };
|
|
|
+ *
|
|
|
+ * // override some options
|
|
|
+ * options.url = '../media/demo.wav';
|
|
|
+
|
|
|
+ * // available types: 'arraybuffer', 'blob', 'json' or 'text'
|
|
|
+ * options.responseType = 'arraybuffer';
|
|
|
+ *
|
|
|
+ * // make fetch call
|
|
|
+ * let request = util.fetchFile(options);
|
|
|
+ *
|
|
|
+ * // listen for events
|
|
|
+ * request.on('progress', e => {
|
|
|
+ * console.log('progress', e);
|
|
|
+ * });
|
|
|
+ *
|
|
|
+ * request.on('success', data => {
|
|
|
+ * console.log('success!', data);
|
|
|
+ * });
|
|
|
+ *
|
|
|
+ * request.on('error', e => {
|
|
|
+ * console.warn('fetchFile error: ', e);
|
|
|
+ * });
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+function fetchFile(options) {
|
|
|
+ if (!options) {
|
|
|
+ throw new Error('fetch options missing');
|
|
|
+ } else if (!options.url) {
|
|
|
+ throw new Error('fetch url missing');
|
|
|
+ }
|
|
|
+
|
|
|
+ var instance = new _observer.default();
|
|
|
+ var fetchHeaders = new Headers();
|
|
|
+ var fetchRequest = new Request(options.url); // add ability to abort
|
|
|
+
|
|
|
+ instance.controller = new AbortController(); // check if headers have to be added
|
|
|
+
|
|
|
+ if (options && options.requestHeaders) {
|
|
|
+ // add custom request headers
|
|
|
+ options.requestHeaders.forEach(function (header) {
|
|
|
+ fetchHeaders.append(header.key, header.value);
|
|
|
+ });
|
|
|
+ } // parse fetch options
|
|
|
+
|
|
|
+
|
|
|
+ var responseType = options.responseType || 'json';
|
|
|
+ var fetchOptions = {
|
|
|
+ method: options.method || 'GET',
|
|
|
+ headers: fetchHeaders,
|
|
|
+ mode: options.mode || 'cors',
|
|
|
+ credentials: options.credentials || 'same-origin',
|
|
|
+ cache: options.cache || 'default',
|
|
|
+ redirect: options.redirect || 'follow',
|
|
|
+ referrer: options.referrer || 'client',
|
|
|
+ signal: instance.controller.signal
|
|
|
+ };
|
|
|
+ fetch(fetchRequest, fetchOptions).then(function (response) {
|
|
|
+ // store response reference
|
|
|
+ instance.response = response;
|
|
|
+ var progressAvailable = true;
|
|
|
+
|
|
|
+ if (!response.body) {
|
|
|
+ // ReadableStream is not yet supported in this browser
|
|
|
+ // see https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream
|
|
|
+ progressAvailable = false;
|
|
|
+ } // Server must send CORS header "Access-Control-Expose-Headers: content-length"
|
|
|
+
|
|
|
+
|
|
|
+ var contentLength = response.headers.get('content-length');
|
|
|
+
|
|
|
+ if (contentLength === null) {
|
|
|
+ // Content-Length server response header missing.
|
|
|
+ // Don't evaluate download progress if we can't compare against a total size
|
|
|
+ // see https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#Access-Control-Expose-Headers
|
|
|
+ progressAvailable = false;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!progressAvailable) {
|
|
|
+ // not able to check download progress so skip it
|
|
|
+ return response;
|
|
|
+ } // fire progress event when during load
|
|
|
+
|
|
|
+
|
|
|
+ instance.onProgress = function (e) {
|
|
|
+ instance.fireEvent('progress', e);
|
|
|
+ };
|
|
|
+
|
|
|
+ return new Response(new ReadableStream(new ProgressHandler(instance, contentLength, response)), fetchOptions);
|
|
|
+ }).then(function (response) {
|
|
|
+ var errMsg;
|
|
|
+
|
|
|
+ if (response.ok) {
|
|
|
+ switch (responseType) {
|
|
|
+ case 'arraybuffer':
|
|
|
+ return response.arrayBuffer();
|
|
|
+
|
|
|
+ case 'json':
|
|
|
+ return response.json();
|
|
|
+
|
|
|
+ case 'blob':
|
|
|
+ return response.blob();
|
|
|
+
|
|
|
+ case 'text':
|
|
|
+ return response.text();
|
|
|
+
|
|
|
+ default:
|
|
|
+ errMsg = 'Unknown responseType: ' + responseType;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!errMsg) {
|
|
|
+ errMsg = 'HTTP error status: ' + response.status;
|
|
|
+ }
|
|
|
+
|
|
|
+ throw new Error(errMsg);
|
|
|
+ }).then(function (response) {
|
|
|
+ instance.fireEvent('success', response);
|
|
|
+ }).catch(function (error) {
|
|
|
+ instance.fireEvent('error', error);
|
|
|
+ }); // return the fetch request
|
|
|
+
|
|
|
+ instance.fetchRequest = fetchRequest;
|
|
|
+ return instance;
|
|
|
+}
|
|
|
+
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/util/frame.js":
|
|
|
+/*!***************************!*\
|
|
|
+ !*** ./src/util/frame.js ***!
|
|
|
+ \***************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = frame;
|
|
|
+
|
|
|
+var _requestAnimationFrame = _interopRequireDefault(__webpack_require__(/*! ./request-animation-frame */ "./src/util/request-animation-frame.js"));
|
|
|
+
|
|
|
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
+
|
|
|
+/**
|
|
|
+ * Create a function which will be called at the next requestAnimationFrame
|
|
|
+ * cycle
|
|
|
+ *
|
|
|
+ * @param {function} func The function to call
|
|
|
+ *
|
|
|
+ * @return {func} The function wrapped within a requestAnimationFrame
|
|
|
+ */
|
|
|
+function frame(func) {
|
|
|
+ return function () {
|
|
|
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
|
|
|
+ args[_key] = arguments[_key];
|
|
|
+ }
|
|
|
+
|
|
|
+ return (0, _requestAnimationFrame.default)(function () {
|
|
|
+ return func.apply(void 0, args);
|
|
|
+ });
|
|
|
+ };
|
|
|
+}
|
|
|
+
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/util/get-id.js":
|
|
|
+/*!****************************!*\
|
|
|
+ !*** ./src/util/get-id.js ***!
|
|
|
+ \****************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = getId;
|
|
|
+
|
|
|
+/**
|
|
|
+ * Get a random prefixed ID
|
|
|
+ *
|
|
|
+ * @param {String} prefix Prefix to use. Default is `'wavesurfer_'`.
|
|
|
+ * @returns {String} Random prefixed ID
|
|
|
+ * @example
|
|
|
+ * console.log(getId()); // logs 'wavesurfer_b5pors4ru6g'
|
|
|
+ *
|
|
|
+ * let prefix = 'foo-';
|
|
|
+ * console.log(getId(prefix)); // logs 'foo-b5pors4ru6g'
|
|
|
+ */
|
|
|
+function getId(prefix) {
|
|
|
+ if (prefix === undefined) {
|
|
|
+ prefix = 'wavesurfer_';
|
|
|
+ }
|
|
|
+
|
|
|
+ return prefix + Math.random().toString(32).substring(2);
|
|
|
+}
|
|
|
+
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/util/index.js":
|
|
|
+/*!***************************!*\
|
|
|
+ !*** ./src/util/index.js ***!
|
|
|
+ \***************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+Object.defineProperty(exports, "getId", {
|
|
|
+ enumerable: true,
|
|
|
+ get: function get() {
|
|
|
+ return _getId.default;
|
|
|
+ }
|
|
|
+});
|
|
|
+Object.defineProperty(exports, "max", {
|
|
|
+ enumerable: true,
|
|
|
+ get: function get() {
|
|
|
+ return _max.default;
|
|
|
+ }
|
|
|
+});
|
|
|
+Object.defineProperty(exports, "min", {
|
|
|
+ enumerable: true,
|
|
|
+ get: function get() {
|
|
|
+ return _min.default;
|
|
|
+ }
|
|
|
+});
|
|
|
+Object.defineProperty(exports, "Observer", {
|
|
|
+ enumerable: true,
|
|
|
+ get: function get() {
|
|
|
+ return _observer.default;
|
|
|
+ }
|
|
|
+});
|
|
|
+Object.defineProperty(exports, "style", {
|
|
|
+ enumerable: true,
|
|
|
+ get: function get() {
|
|
|
+ return _style.default;
|
|
|
+ }
|
|
|
+});
|
|
|
+Object.defineProperty(exports, "requestAnimationFrame", {
|
|
|
+ enumerable: true,
|
|
|
+ get: function get() {
|
|
|
+ return _requestAnimationFrame.default;
|
|
|
+ }
|
|
|
+});
|
|
|
+Object.defineProperty(exports, "frame", {
|
|
|
+ enumerable: true,
|
|
|
+ get: function get() {
|
|
|
+ return _frame.default;
|
|
|
+ }
|
|
|
+});
|
|
|
+Object.defineProperty(exports, "debounce", {
|
|
|
+ enumerable: true,
|
|
|
+ get: function get() {
|
|
|
+ return _debounce.default;
|
|
|
+ }
|
|
|
+});
|
|
|
+Object.defineProperty(exports, "preventClick", {
|
|
|
+ enumerable: true,
|
|
|
+ get: function get() {
|
|
|
+ return _preventClick.default;
|
|
|
+ }
|
|
|
+});
|
|
|
+Object.defineProperty(exports, "fetchFile", {
|
|
|
+ enumerable: true,
|
|
|
+ get: function get() {
|
|
|
+ return _fetch.default;
|
|
|
+ }
|
|
|
+});
|
|
|
+Object.defineProperty(exports, "clamp", {
|
|
|
+ enumerable: true,
|
|
|
+ get: function get() {
|
|
|
+ return _clamp.default;
|
|
|
+ }
|
|
|
+});
|
|
|
+
|
|
|
+var _getId = _interopRequireDefault(__webpack_require__(/*! ./get-id */ "./src/util/get-id.js"));
|
|
|
+
|
|
|
+var _max = _interopRequireDefault(__webpack_require__(/*! ./max */ "./src/util/max.js"));
|
|
|
+
|
|
|
+var _min = _interopRequireDefault(__webpack_require__(/*! ./min */ "./src/util/min.js"));
|
|
|
+
|
|
|
+var _observer = _interopRequireDefault(__webpack_require__(/*! ./observer */ "./src/util/observer.js"));
|
|
|
+
|
|
|
+var _style = _interopRequireDefault(__webpack_require__(/*! ./style */ "./src/util/style.js"));
|
|
|
+
|
|
|
+var _requestAnimationFrame = _interopRequireDefault(__webpack_require__(/*! ./request-animation-frame */ "./src/util/request-animation-frame.js"));
|
|
|
+
|
|
|
+var _frame = _interopRequireDefault(__webpack_require__(/*! ./frame */ "./src/util/frame.js"));
|
|
|
+
|
|
|
+var _debounce = _interopRequireDefault(__webpack_require__(/*! debounce */ "./node_modules/debounce/index.js"));
|
|
|
+
|
|
|
+var _preventClick = _interopRequireDefault(__webpack_require__(/*! ./prevent-click */ "./src/util/prevent-click.js"));
|
|
|
+
|
|
|
+var _fetch = _interopRequireDefault(__webpack_require__(/*! ./fetch */ "./src/util/fetch.js"));
|
|
|
+
|
|
|
+var _clamp = _interopRequireDefault(__webpack_require__(/*! ./clamp */ "./src/util/clamp.js"));
|
|
|
+
|
|
|
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/util/max.js":
|
|
|
+/*!*************************!*\
|
|
|
+ !*** ./src/util/max.js ***!
|
|
|
+ \*************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = max;
|
|
|
+
|
|
|
+/**
|
|
|
+ * Get the largest value
|
|
|
+ *
|
|
|
+ * @param {Array} values Array of numbers
|
|
|
+ * @returns {Number} Largest number found
|
|
|
+ * @example console.log(max([1, 2, 3])); // logs 3
|
|
|
+ */
|
|
|
+function max(values) {
|
|
|
+ var largest = -Infinity;
|
|
|
+ Object.keys(values).forEach(function (i) {
|
|
|
+ if (values[i] > largest) {
|
|
|
+ largest = values[i];
|
|
|
+ }
|
|
|
+ });
|
|
|
+ return largest;
|
|
|
+}
|
|
|
+
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/util/min.js":
|
|
|
+/*!*************************!*\
|
|
|
+ !*** ./src/util/min.js ***!
|
|
|
+ \*************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = min;
|
|
|
+
|
|
|
+/**
|
|
|
+ * Get the smallest value
|
|
|
+ *
|
|
|
+ * @param {Array} values Array of numbers
|
|
|
+ * @returns {Number} Smallest number found
|
|
|
+ * @example console.log(min([1, 2, 3])); // logs 1
|
|
|
+ */
|
|
|
+function min(values) {
|
|
|
+ var smallest = Number(Infinity);
|
|
|
+ Object.keys(values).forEach(function (i) {
|
|
|
+ if (values[i] < smallest) {
|
|
|
+ smallest = values[i];
|
|
|
+ }
|
|
|
+ });
|
|
|
+ return smallest;
|
|
|
+}
|
|
|
+
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/util/observer.js":
|
|
|
+/*!******************************!*\
|
|
|
+ !*** ./src/util/observer.js ***!
|
|
|
+ \******************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = void 0;
|
|
|
+
|
|
|
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
+
|
|
|
+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, descriptor.key, descriptor); } }
|
|
|
+
|
|
|
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
+
|
|
|
+/**
|
|
|
+ * @typedef {Object} ListenerDescriptor
|
|
|
+ * @property {string} name The name of the event
|
|
|
+ * @property {function} callback The callback
|
|
|
+ * @property {function} un The function to call to remove the listener
|
|
|
+ */
|
|
|
+
|
|
|
+/**
|
|
|
+ * Observer class
|
|
|
+ */
|
|
|
+var Observer = /*#__PURE__*/function () {
|
|
|
+ /**
|
|
|
+ * Instantiate Observer
|
|
|
+ */
|
|
|
+ function Observer() {
|
|
|
+ _classCallCheck(this, Observer);
|
|
|
+
|
|
|
+ /**
|
|
|
+ * @private
|
|
|
+ * @todo Initialise the handlers here already and remove the conditional
|
|
|
+ * assignment in `on()`
|
|
|
+ */
|
|
|
+ this._disabledEventEmissions = [];
|
|
|
+ this.handlers = null;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Attach a handler function for an event.
|
|
|
+ *
|
|
|
+ * @param {string} event Name of the event to listen to
|
|
|
+ * @param {function} fn The callback to trigger when the event is fired
|
|
|
+ * @return {ListenerDescriptor} The event descriptor
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _createClass(Observer, [{
|
|
|
+ key: "on",
|
|
|
+ value: function on(event, fn) {
|
|
|
+ var _this = this;
|
|
|
+
|
|
|
+ if (!this.handlers) {
|
|
|
+ this.handlers = {};
|
|
|
+ }
|
|
|
+
|
|
|
+ var handlers = this.handlers[event];
|
|
|
+
|
|
|
+ if (!handlers) {
|
|
|
+ handlers = this.handlers[event] = [];
|
|
|
+ }
|
|
|
+
|
|
|
+ handlers.push(fn); // Return an event descriptor
|
|
|
+
|
|
|
+ return {
|
|
|
+ name: event,
|
|
|
+ callback: fn,
|
|
|
+ un: function un(e, fn) {
|
|
|
+ return _this.un(e, fn);
|
|
|
+ }
|
|
|
+ };
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Remove an event handler.
|
|
|
+ *
|
|
|
+ * @param {string} event Name of the event the listener that should be
|
|
|
+ * removed listens to
|
|
|
+ * @param {function} fn The callback that should be removed
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "un",
|
|
|
+ value: function un(event, fn) {
|
|
|
+ if (!this.handlers) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ var handlers = this.handlers[event];
|
|
|
+ var i;
|
|
|
+
|
|
|
+ if (handlers) {
|
|
|
+ if (fn) {
|
|
|
+ for (i = handlers.length - 1; i >= 0; i--) {
|
|
|
+ if (handlers[i] == fn) {
|
|
|
+ handlers.splice(i, 1);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ handlers.length = 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Remove all event handlers.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "unAll",
|
|
|
+ value: function unAll() {
|
|
|
+ this.handlers = null;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Attach a handler to an event. The handler is executed at most once per
|
|
|
+ * event type.
|
|
|
+ *
|
|
|
+ * @param {string} event The event to listen to
|
|
|
+ * @param {function} handler The callback that is only to be called once
|
|
|
+ * @return {ListenerDescriptor} The event descriptor
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "once",
|
|
|
+ value: function once(event, handler) {
|
|
|
+ var _this2 = this;
|
|
|
+
|
|
|
+ var fn = function fn() {
|
|
|
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
|
|
|
+ args[_key] = arguments[_key];
|
|
|
+ }
|
|
|
+
|
|
|
+ /* eslint-disable no-invalid-this */
|
|
|
+ handler.apply(_this2, args);
|
|
|
+ /* eslint-enable no-invalid-this */
|
|
|
+
|
|
|
+ setTimeout(function () {
|
|
|
+ _this2.un(event, fn);
|
|
|
+ }, 0);
|
|
|
+ };
|
|
|
+
|
|
|
+ return this.on(event, fn);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Disable firing a list of events by name. When specified, event handlers for any event type
|
|
|
+ * passed in here will not be called.
|
|
|
+ *
|
|
|
+ * @since 4.0.0
|
|
|
+ * @param {string[]} eventNames an array of event names to disable emissions for
|
|
|
+ * @example
|
|
|
+ * // disable seek and interaction events
|
|
|
+ * wavesurfer.setDisabledEventEmissions(['seek', 'interaction']);
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setDisabledEventEmissions",
|
|
|
+ value: function setDisabledEventEmissions(eventNames) {
|
|
|
+ this._disabledEventEmissions = eventNames;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * plugins borrow part of this class without calling the constructor,
|
|
|
+ * so we have to be careful about _disabledEventEmissions
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_isDisabledEventEmission",
|
|
|
+ value: function _isDisabledEventEmission(event) {
|
|
|
+ return this._disabledEventEmissions && this._disabledEventEmissions.includes(event);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Manually fire an event
|
|
|
+ *
|
|
|
+ * @param {string} event The event to fire manually
|
|
|
+ * @param {...any} args The arguments with which to call the listeners
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "fireEvent",
|
|
|
+ value: function fireEvent(event) {
|
|
|
+ for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
|
|
|
+ args[_key2 - 1] = arguments[_key2];
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!this.handlers || this._isDisabledEventEmission(event)) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ var handlers = this.handlers[event];
|
|
|
+ handlers && handlers.forEach(function (fn) {
|
|
|
+ fn.apply(void 0, args);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return Observer;
|
|
|
+}();
|
|
|
+
|
|
|
+exports.default = Observer;
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/util/prevent-click.js":
|
|
|
+/*!***********************************!*\
|
|
|
+ !*** ./src/util/prevent-click.js ***!
|
|
|
+ \***********************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = preventClick;
|
|
|
+
|
|
|
+/**
|
|
|
+ * Stops propagation of click event and removes event listener
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ * @param {object} event The click event
|
|
|
+ */
|
|
|
+function preventClickHandler(event) {
|
|
|
+ event.stopPropagation();
|
|
|
+ document.body.removeEventListener('click', preventClickHandler, true);
|
|
|
+}
|
|
|
+/**
|
|
|
+ * Starts listening for click event and prevent propagation
|
|
|
+ *
|
|
|
+ * @param {object} values Values
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+function preventClick(values) {
|
|
|
+ document.body.addEventListener('click', preventClickHandler, true);
|
|
|
+}
|
|
|
+
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/util/request-animation-frame.js":
|
|
|
+/*!*********************************************!*\
|
|
|
+ !*** ./src/util/request-animation-frame.js ***!
|
|
|
+ \*********************************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = void 0;
|
|
|
+
|
|
|
+/* eslint-disable valid-jsdoc */
|
|
|
+
|
|
|
+/**
|
|
|
+ * Returns the `requestAnimationFrame` function for the browser, or a shim with
|
|
|
+ * `setTimeout` if the function is not found
|
|
|
+ *
|
|
|
+ * @return {function} Available `requestAnimationFrame` function for the browser
|
|
|
+ */
|
|
|
+var _default = (window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function (callback, element) {
|
|
|
+ return setTimeout(callback, 1000 / 60);
|
|
|
+}).bind(window);
|
|
|
+
|
|
|
+exports.default = _default;
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/util/style.js":
|
|
|
+/*!***************************!*\
|
|
|
+ !*** ./src/util/style.js ***!
|
|
|
+ \***************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = style;
|
|
|
+
|
|
|
+/**
|
|
|
+ * Apply a map of styles to an element
|
|
|
+ *
|
|
|
+ * @param {HTMLElement} el The element that the styles will be applied to
|
|
|
+ * @param {Object} styles The map of propName: attribute, both are used as-is
|
|
|
+ *
|
|
|
+ * @return {HTMLElement} el
|
|
|
+ */
|
|
|
+function style(el, styles) {
|
|
|
+ Object.keys(styles).forEach(function (prop) {
|
|
|
+ if (el.style[prop] !== styles[prop]) {
|
|
|
+ el.style[prop] = styles[prop];
|
|
|
+ }
|
|
|
+ });
|
|
|
+ return el;
|
|
|
+}
|
|
|
+
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/wavesurfer.js":
|
|
|
+/*!***************************!*\
|
|
|
+ !*** ./src/wavesurfer.js ***!
|
|
|
+ \***************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = void 0;
|
|
|
+
|
|
|
+var util = _interopRequireWildcard(__webpack_require__(/*! ./util */ "./src/util/index.js"));
|
|
|
+
|
|
|
+var _drawer = _interopRequireDefault(__webpack_require__(/*! ./drawer.multicanvas */ "./src/drawer.multicanvas.js"));
|
|
|
+
|
|
|
+var _webaudio = _interopRequireDefault(__webpack_require__(/*! ./webaudio */ "./src/webaudio.js"));
|
|
|
+
|
|
|
+var _mediaelement = _interopRequireDefault(__webpack_require__(/*! ./mediaelement */ "./src/mediaelement.js"));
|
|
|
+
|
|
|
+var _peakcache = _interopRequireDefault(__webpack_require__(/*! ./peakcache */ "./src/peakcache.js"));
|
|
|
+
|
|
|
+var _mediaelementWebaudio = _interopRequireDefault(__webpack_require__(/*! ./mediaelement-webaudio */ "./src/mediaelement-webaudio.js"));
|
|
|
+
|
|
|
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
+
|
|
|
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }
|
|
|
+
|
|
|
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
|
|
|
+
|
|
|
+function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
+
|
|
|
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
|
|
|
+
|
|
|
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
|
|
|
+
|
|
|
+function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
|
|
|
+
|
|
|
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
|
|
|
+
|
|
|
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
|
|
|
+
|
|
|
+function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
|
|
|
+
|
|
|
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
|
|
|
+
|
|
|
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
+
|
|
|
+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, descriptor.key, descriptor); } }
|
|
|
+
|
|
|
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
+
|
|
|
+/*
|
|
|
+ * This work is licensed under a BSD-3-Clause License.
|
|
|
+ */
|
|
|
+
|
|
|
+/** @external {HTMLElement} https://developer.mozilla.org/en/docs/Web/API/HTMLElement */
|
|
|
+
|
|
|
+/** @external {OfflineAudioContext} https://developer.mozilla.org/en-US/docs/Web/API/OfflineAudioContext */
|
|
|
+
|
|
|
+/** @external {File} https://developer.mozilla.org/en-US/docs/Web/API/File */
|
|
|
+
|
|
|
+/** @external {Blob} https://developer.mozilla.org/en-US/docs/Web/API/Blob */
|
|
|
+
|
|
|
+/** @external {CanvasRenderingContext2D} https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D */
|
|
|
+
|
|
|
+/** @external {MediaStreamConstraints} https://developer.mozilla.org/en-US/docs/Web/API/MediaStreamConstraints */
|
|
|
+
|
|
|
+/** @external {AudioNode} https://developer.mozilla.org/de/docs/Web/API/AudioNode */
|
|
|
+
|
|
|
+/**
|
|
|
+ * @typedef {Object} WavesurferParams
|
|
|
+ * @property {AudioContext} audioContext=null Use your own previously
|
|
|
+ * initialized AudioContext or leave blank.
|
|
|
+ * @property {number} audioRate=1 Speed at which to play audio. Lower number is
|
|
|
+ * slower.
|
|
|
+ * @property {ScriptProcessorNode} audioScriptProcessor=null Use your own previously
|
|
|
+ * initialized ScriptProcessorNode or leave blank.
|
|
|
+ * @property {boolean} autoCenter=true If a scrollbar is present, center the
|
|
|
+ * waveform on current progress
|
|
|
+ * @property {number} autoCenterRate=5 If autoCenter is active, rate at which the
|
|
|
+ * waveform is centered
|
|
|
+ * @property {boolean} autoCenterImmediately=false If autoCenter is active, immediately
|
|
|
+ * center waveform on current progress
|
|
|
+ * @property {string} backend='WebAudio' `'WebAudio'|'MediaElement'|'MediaElementWebAudio'` In most cases
|
|
|
+ * you don't have to set this manually. MediaElement is a fallback for unsupported browsers.
|
|
|
+ * MediaElementWebAudio allows to use WebAudio API also with big audio files, loading audio like with
|
|
|
+ * MediaElement backend (HTML5 audio tag). You have to use the same methods of MediaElement backend for loading and
|
|
|
+ * playback, giving also peaks, so the audio data are not decoded. In this way you can use WebAudio features, like filters,
|
|
|
+ * also with audio with big duration. For example:
|
|
|
+ * ` wavesurfer.load(url | HTMLMediaElement, peaks, preload, duration);
|
|
|
+ * wavesurfer.play();
|
|
|
+ * wavesurfer.setFilter(customFilter);
|
|
|
+ * `
|
|
|
+ * @property {string} backgroundColor=null Change background color of the
|
|
|
+ * waveform container.
|
|
|
+ * @property {number} barHeight=1 The height of the wave bars.
|
|
|
+ * @property {number} barRadius=0 The radius of the wave bars. Makes bars rounded
|
|
|
+ * @property {number} barGap=null The optional spacing between bars of the wave,
|
|
|
+ * if not provided will be calculated in legacy format.
|
|
|
+ * @property {number} barWidth=null Draw the waveform using bars.
|
|
|
+ * @property {number} barMinHeight=null If specified, draw at least a bar of this height,
|
|
|
+ * eliminating waveform gaps
|
|
|
+ * @property {boolean} closeAudioContext=false Close and nullify all audio
|
|
|
+ * contexts when the destroy method is called.
|
|
|
+ * @property {!string|HTMLElement} container CSS selector or HTML element where
|
|
|
+ * the waveform should be drawn. This is the only required parameter.
|
|
|
+ * @property {string} cursorColor='#333' The fill color of the cursor indicating
|
|
|
+ * the playhead position.
|
|
|
+ * @property {number} cursorWidth=1 Measured in pixels.
|
|
|
+ * @property {object} drawingContextAttributes={desynchronized: false} Drawing context
|
|
|
+ * attributes.
|
|
|
+ * @property {number} duration=null Optional audio length so pre-rendered peaks
|
|
|
+ * can be display immediately for example.
|
|
|
+ * @property {boolean} fillParent=true Whether to fill the entire container or
|
|
|
+ * draw only according to `minPxPerSec`.
|
|
|
+ * @property {boolean} forceDecode=false Force decoding of audio using web audio
|
|
|
+ * when zooming to get a more detailed waveform.
|
|
|
+ * @property {number} height=128 The height of the waveform. Measured in
|
|
|
+ * pixels.
|
|
|
+ * @property {boolean} hideScrollbar=false Whether to hide the horizontal
|
|
|
+ * scrollbar when one would normally be shown.
|
|
|
+ * @property {boolean} interact=true Whether the mouse interaction will be
|
|
|
+ * enabled at initialization. You can switch this parameter at any time later
|
|
|
+ * on.
|
|
|
+ * @property {boolean} loopSelection=true (Use with regions plugin) Enable
|
|
|
+ * looping of selected regions
|
|
|
+ * @property {number} maxCanvasWidth=4000 Maximum width of a single canvas in
|
|
|
+ * pixels, excluding a small overlap (2 * `pixelRatio`, rounded up to the next
|
|
|
+ * even integer). If the waveform is longer than this value, additional canvases
|
|
|
+ * will be used to render the waveform, which is useful for very large waveforms
|
|
|
+ * that may be too wide for browsers to draw on a single canvas.
|
|
|
+ * @property {boolean} mediaControls=false (Use with backend `MediaElement` or `MediaElementWebAudio`)
|
|
|
+ * this enables the native controls for the media element
|
|
|
+ * @property {string} mediaType='audio' (Use with backend `MediaElement` or `MediaElementWebAudio`)
|
|
|
+ * `'audio'|'video'` ('video' only for `MediaElement`)
|
|
|
+ * @property {number} minPxPerSec=20 Minimum number of pixels per second of
|
|
|
+ * audio.
|
|
|
+ * @property {boolean} normalize=false If true, normalize by the maximum peak
|
|
|
+ * instead of 1.0.
|
|
|
+ * @property {boolean} partialRender=false Use the PeakCache to improve
|
|
|
+ * rendering speed of large waveforms
|
|
|
+ * @property {number} pixelRatio=window.devicePixelRatio The pixel ratio used to
|
|
|
+ * calculate display
|
|
|
+ * @property {PluginDefinition[]} plugins=[] An array of plugin definitions to
|
|
|
+ * register during instantiation, they will be directly initialised unless they
|
|
|
+ * are added with the `deferInit` property set to true.
|
|
|
+ * @property {string} progressColor='#555' The fill color of the part of the
|
|
|
+ * waveform behind the cursor. When `progressColor` and `waveColor` are the same
|
|
|
+ * the progress wave is not rendered at all.
|
|
|
+ * @property {boolean} removeMediaElementOnDestroy=true Set to false to keep the
|
|
|
+ * media element in the DOM when the player is destroyed. This is useful when
|
|
|
+ * reusing an existing media element via the `loadMediaElement` method.
|
|
|
+ * @property {Object} renderer=MultiCanvas Can be used to inject a custom
|
|
|
+ * renderer.
|
|
|
+ * @property {boolean|number} responsive=false If set to `true` resize the
|
|
|
+ * waveform, when the window is resized. This is debounced with a `100ms`
|
|
|
+ * timeout by default. If this parameter is a number it represents that timeout.
|
|
|
+ * @property {boolean} rtl=false If set to `true`, renders waveform from
|
|
|
+ * right-to-left.
|
|
|
+ * @property {boolean} scrollParent=false Whether to scroll the container with a
|
|
|
+ * lengthy waveform. Otherwise the waveform is shrunk to the container width
|
|
|
+ * (see fillParent).
|
|
|
+ * @property {number} skipLength=2 Number of seconds to skip with the
|
|
|
+ * skipForward() and skipBackward() methods.
|
|
|
+ * @property {boolean} splitChannels=false Render with separate waveforms for
|
|
|
+ * the channels of the audio
|
|
|
+ * @property {string} waveColor='#999' The fill color of the waveform after the
|
|
|
+ * cursor.
|
|
|
+ * @property {object} xhr={} XHR options. For example:
|
|
|
+ * `let xhr = {
|
|
|
+ * cache: 'default',
|
|
|
+ * mode: 'cors',
|
|
|
+ * method: 'GET',
|
|
|
+ * credentials: 'same-origin',
|
|
|
+ * redirect: 'follow',
|
|
|
+ * referrer: 'client',
|
|
|
+ * requestHeaders: [
|
|
|
+ * {
|
|
|
+ * key: 'Authorization',
|
|
|
+ * value: 'my-token'
|
|
|
+ * }
|
|
|
+ * ]
|
|
|
+ * };`
|
|
|
+ */
|
|
|
+
|
|
|
+/**
|
|
|
+ * @typedef {Object} PluginDefinition
|
|
|
+ * @desc The Object used to describe a plugin
|
|
|
+ * @example wavesurfer.addPlugin(pluginDefinition);
|
|
|
+ * @property {string} name The name of the plugin, the plugin instance will be
|
|
|
+ * added as a property to the wavesurfer instance under this name
|
|
|
+ * @property {?Object} staticProps The properties that should be added to the
|
|
|
+ * wavesurfer instance as static properties
|
|
|
+ * @property {?boolean} deferInit Don't initialise plugin
|
|
|
+ * automatically
|
|
|
+ * @property {Object} params={} The plugin parameters, they are the first parameter
|
|
|
+ * passed to the plugin class constructor function
|
|
|
+ * @property {PluginClass} instance The plugin instance factory, is called with
|
|
|
+ * the dependency specified in extends. Returns the plugin class.
|
|
|
+ */
|
|
|
+
|
|
|
+/**
|
|
|
+ * @interface PluginClass
|
|
|
+ *
|
|
|
+ * @desc This is the interface which is implemented by all plugin classes. Note
|
|
|
+ * that this only turns into an observer after being passed through
|
|
|
+ * `wavesurfer.addPlugin`.
|
|
|
+ *
|
|
|
+ * @extends {Observer}
|
|
|
+ */
|
|
|
+var PluginClass = /*#__PURE__*/function () {
|
|
|
+ _createClass(PluginClass, [{
|
|
|
+ key: "create",
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Plugin definition factory
|
|
|
+ *
|
|
|
+ * This function must be used to create a plugin definition which can be
|
|
|
+ * used by wavesurfer to correctly instantiate the plugin.
|
|
|
+ *
|
|
|
+ * It returns a `PluginDefinition` object representing the plugin.
|
|
|
+ *
|
|
|
+ * @param {Object} params={} The plugin params (specific to the plugin)
|
|
|
+ */
|
|
|
+ value: function create(params) {}
|
|
|
+ /**
|
|
|
+ * Construct the plugin
|
|
|
+ *
|
|
|
+ * @param {Object} params={} The plugin params (specific to the plugin)
|
|
|
+ * @param {Object} ws The wavesurfer instance
|
|
|
+ */
|
|
|
+
|
|
|
+ }]);
|
|
|
+
|
|
|
+ function PluginClass(params, ws) {
|
|
|
+ _classCallCheck(this, PluginClass);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Initialise the plugin
|
|
|
+ *
|
|
|
+ * Start doing something. This is called by
|
|
|
+ * `wavesurfer.initPlugin(pluginName)`
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _createClass(PluginClass, [{
|
|
|
+ key: "init",
|
|
|
+ value: function init() {}
|
|
|
+ /**
|
|
|
+ * Destroy the plugin instance
|
|
|
+ *
|
|
|
+ * Stop doing something. This is called by
|
|
|
+ * `wavesurfer.destroyPlugin(pluginName)`
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "destroy",
|
|
|
+ value: function destroy() {}
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return PluginClass;
|
|
|
+}();
|
|
|
+/**
|
|
|
+ * WaveSurfer core library class
|
|
|
+ *
|
|
|
+ * @extends {Observer}
|
|
|
+ * @example
|
|
|
+ * const params = {
|
|
|
+ * container: '#waveform',
|
|
|
+ * waveColor: 'violet',
|
|
|
+ * progressColor: 'purple'
|
|
|
+ * };
|
|
|
+ *
|
|
|
+ * // initialise like this
|
|
|
+ * const wavesurfer = WaveSurfer.create(params);
|
|
|
+ *
|
|
|
+ * // or like this ...
|
|
|
+ * const wavesurfer = new WaveSurfer(params);
|
|
|
+ * wavesurfer.init();
|
|
|
+ *
|
|
|
+ * // load audio file
|
|
|
+ * wavesurfer.load('example/media/demo.wav');
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+var WaveSurfer = /*#__PURE__*/function (_util$Observer) {
|
|
|
+ _inherits(WaveSurfer, _util$Observer);
|
|
|
+
|
|
|
+ var _super = _createSuper(WaveSurfer);
|
|
|
+
|
|
|
+ _createClass(WaveSurfer, null, [{
|
|
|
+ key: "create",
|
|
|
+
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Instantiate this class, call its `init` function and returns it
|
|
|
+ *
|
|
|
+ * @param {WavesurferParams} params The wavesurfer parameters
|
|
|
+ * @return {Object} WaveSurfer instance
|
|
|
+ * @example const wavesurfer = WaveSurfer.create(params);
|
|
|
+ */
|
|
|
+ value: function create(params) {
|
|
|
+ var wavesurfer = new WaveSurfer(params);
|
|
|
+ return wavesurfer.init();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * The library version number is available as a static property of the
|
|
|
+ * WaveSurfer class
|
|
|
+ *
|
|
|
+ * @type {String}
|
|
|
+ * @example
|
|
|
+ * console.log('Using wavesurfer.js ' + WaveSurfer.VERSION);
|
|
|
+ */
|
|
|
+
|
|
|
+ }]);
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Initialise wavesurfer instance
|
|
|
+ *
|
|
|
+ * @param {WavesurferParams} params Instantiation options for wavesurfer
|
|
|
+ * @example
|
|
|
+ * const wavesurfer = new WaveSurfer(params);
|
|
|
+ * @returns {this} Wavesurfer instance
|
|
|
+ */
|
|
|
+ function WaveSurfer(params) {
|
|
|
+ var _this;
|
|
|
+
|
|
|
+ _classCallCheck(this, WaveSurfer);
|
|
|
+
|
|
|
+ _this = _super.call(this);
|
|
|
+ /**
|
|
|
+ * Extract relevant parameters (or defaults)
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.defaultParams = {
|
|
|
+ audioContext: null,
|
|
|
+ audioScriptProcessor: null,
|
|
|
+ audioRate: 1,
|
|
|
+ autoCenter: true,
|
|
|
+ autoCenterRate: 5,
|
|
|
+ autoCenterImmediately: false,
|
|
|
+ backend: 'WebAudio',
|
|
|
+ backgroundColor: null,
|
|
|
+ barHeight: 1,
|
|
|
+ barRadius: 0,
|
|
|
+ barGap: null,
|
|
|
+ barMinHeight: null,
|
|
|
+ container: null,
|
|
|
+ cursorColor: '#333',
|
|
|
+ cursorWidth: 1,
|
|
|
+ dragSelection: true,
|
|
|
+ drawingContextAttributes: {
|
|
|
+ // Boolean that hints the user agent to reduce the latency
|
|
|
+ // by desynchronizing the canvas paint cycle from the event
|
|
|
+ // loop
|
|
|
+ desynchronized: false
|
|
|
+ },
|
|
|
+ duration: null,
|
|
|
+ fillParent: true,
|
|
|
+ forceDecode: false,
|
|
|
+ height: 128,
|
|
|
+ hideScrollbar: false,
|
|
|
+ interact: true,
|
|
|
+ loopSelection: true,
|
|
|
+ maxCanvasWidth: 4000,
|
|
|
+ mediaContainer: null,
|
|
|
+ mediaControls: false,
|
|
|
+ mediaType: 'audio',
|
|
|
+ minPxPerSec: 20,
|
|
|
+ normalize: false,
|
|
|
+ partialRender: false,
|
|
|
+ pixelRatio: window.devicePixelRatio || screen.deviceXDPI / screen.logicalXDPI,
|
|
|
+ plugins: [],
|
|
|
+ progressColor: '#555',
|
|
|
+ removeMediaElementOnDestroy: true,
|
|
|
+ renderer: _drawer.default,
|
|
|
+ responsive: false,
|
|
|
+ rtl: false,
|
|
|
+ scrollParent: false,
|
|
|
+ skipLength: 2,
|
|
|
+ splitChannels: false,
|
|
|
+ splitChannelsOptions: {
|
|
|
+ overlay: false,
|
|
|
+ channelColors: {},
|
|
|
+ filterChannels: []
|
|
|
+ },
|
|
|
+ waveColor: '#999',
|
|
|
+ xhr: {}
|
|
|
+ };
|
|
|
+ _this.backends = {
|
|
|
+ MediaElement: _mediaelement.default,
|
|
|
+ WebAudio: _webaudio.default,
|
|
|
+ MediaElementWebAudio: _mediaelementWebaudio.default
|
|
|
+ };
|
|
|
+ _this.util = util;
|
|
|
+ _this.params = Object.assign({}, _this.defaultParams, params);
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.container = 'string' == typeof params.container ? document.querySelector(_this.params.container) : _this.params.container;
|
|
|
+
|
|
|
+ if (!_this.container) {
|
|
|
+ throw new Error('Container element not found');
|
|
|
+ }
|
|
|
+
|
|
|
+ if (_this.params.mediaContainer == null) {
|
|
|
+ /** @private */
|
|
|
+ _this.mediaContainer = _this.container;
|
|
|
+ } else if (typeof _this.params.mediaContainer == 'string') {
|
|
|
+ /** @private */
|
|
|
+ _this.mediaContainer = document.querySelector(_this.params.mediaContainer);
|
|
|
+ } else {
|
|
|
+ /** @private */
|
|
|
+ _this.mediaContainer = _this.params.mediaContainer;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!_this.mediaContainer) {
|
|
|
+ throw new Error('Media Container element not found');
|
|
|
+ }
|
|
|
+
|
|
|
+ if (_this.params.maxCanvasWidth <= 1) {
|
|
|
+ throw new Error('maxCanvasWidth must be greater than 1');
|
|
|
+ } else if (_this.params.maxCanvasWidth % 2 == 1) {
|
|
|
+ throw new Error('maxCanvasWidth must be an even number');
|
|
|
+ }
|
|
|
+
|
|
|
+ if (_this.params.rtl === true) {
|
|
|
+ util.style(_this.container, {
|
|
|
+ transform: 'rotateY(180deg)'
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ if (_this.params.backgroundColor) {
|
|
|
+ _this.setBackgroundColor(_this.params.backgroundColor);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * @private Used to save the current volume when muting so we can
|
|
|
+ * restore once unmuted
|
|
|
+ * @type {number}
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _this.savedVolume = 0;
|
|
|
+ /**
|
|
|
+ * @private The current muted state
|
|
|
+ * @type {boolean}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.isMuted = false;
|
|
|
+ /**
|
|
|
+ * @private Will hold a list of event descriptors that need to be
|
|
|
+ * canceled on subsequent loads of audio
|
|
|
+ * @type {Object[]}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.tmpEvents = [];
|
|
|
+ /**
|
|
|
+ * @private Holds any running audio downloads
|
|
|
+ * @type {Observer}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.currentRequest = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.arraybuffer = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.drawer = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.backend = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.peakCache = null; // cache constructor objects
|
|
|
+
|
|
|
+ if (typeof _this.params.renderer !== 'function') {
|
|
|
+ throw new Error('Renderer parameter is invalid');
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * @private The uninitialised Drawer class
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _this.Drawer = _this.params.renderer;
|
|
|
+ /**
|
|
|
+ * @private The uninitialised Backend class
|
|
|
+ */
|
|
|
+ // Back compat
|
|
|
+
|
|
|
+ if (_this.params.backend == 'AudioElement') {
|
|
|
+ _this.params.backend = 'MediaElement';
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((_this.params.backend == 'WebAudio' || _this.params.backend === 'MediaElementWebAudio') && !_webaudio.default.prototype.supportsWebAudio.call(null)) {
|
|
|
+ _this.params.backend = 'MediaElement';
|
|
|
+ }
|
|
|
+
|
|
|
+ _this.Backend = _this.backends[_this.params.backend];
|
|
|
+ /**
|
|
|
+ * @private map of plugin names that are currently initialised
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.initialisedPluginList = {};
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.isDestroyed = false;
|
|
|
+ /**
|
|
|
+ * Get the current ready status.
|
|
|
+ *
|
|
|
+ * @example const isReady = wavesurfer.isReady;
|
|
|
+ * @return {boolean}
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.isReady = false; // responsive debounced event listener. If this.params.responsive is not
|
|
|
+ // set, this is never called. Use 100ms or this.params.responsive as
|
|
|
+ // timeout for the debounce function.
|
|
|
+
|
|
|
+ var prevWidth = 0;
|
|
|
+ _this._onResize = util.debounce(function () {
|
|
|
+ if (prevWidth != _this.drawer.wrapper.clientWidth && !_this.params.scrollParent) {
|
|
|
+ prevWidth = _this.drawer.wrapper.clientWidth;
|
|
|
+
|
|
|
+ _this.drawer.fireEvent('redraw');
|
|
|
+ }
|
|
|
+ }, typeof _this.params.responsive === 'number' ? _this.params.responsive : 100);
|
|
|
+ return _possibleConstructorReturn(_this, _assertThisInitialized(_this));
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Initialise the wave
|
|
|
+ *
|
|
|
+ * @example
|
|
|
+ * var wavesurfer = new WaveSurfer(params);
|
|
|
+ * wavesurfer.init();
|
|
|
+ * @return {this} The wavesurfer instance
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _createClass(WaveSurfer, [{
|
|
|
+ key: "init",
|
|
|
+ value: function init() {
|
|
|
+ this.registerPlugins(this.params.plugins);
|
|
|
+ this.createDrawer();
|
|
|
+ this.createBackend();
|
|
|
+ this.createPeakCache();
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Add and initialise array of plugins (if `plugin.deferInit` is falsey),
|
|
|
+ * this function is called in the init function of wavesurfer
|
|
|
+ *
|
|
|
+ * @param {PluginDefinition[]} plugins An array of plugin definitions
|
|
|
+ * @emits {WaveSurfer#plugins-registered} Called with the array of plugin definitions
|
|
|
+ * @return {this} The wavesurfer instance
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "registerPlugins",
|
|
|
+ value: function registerPlugins(plugins) {
|
|
|
+ var _this2 = this;
|
|
|
+
|
|
|
+ // first instantiate all the plugins
|
|
|
+ plugins.forEach(function (plugin) {
|
|
|
+ return _this2.addPlugin(plugin);
|
|
|
+ }); // now run the init functions
|
|
|
+
|
|
|
+ plugins.forEach(function (plugin) {
|
|
|
+ // call init function of the plugin if deferInit is falsey
|
|
|
+ // in that case you would manually use initPlugins()
|
|
|
+ if (!plugin.deferInit) {
|
|
|
+ _this2.initPlugin(plugin.name);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ this.fireEvent('plugins-registered', plugins);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get a map of plugin names that are currently initialised
|
|
|
+ *
|
|
|
+ * @example wavesurfer.getPlugins();
|
|
|
+ * @return {Object} Object with plugin names
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getActivePlugins",
|
|
|
+ value: function getActivePlugins() {
|
|
|
+ return this.initialisedPluginList;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Add a plugin object to wavesurfer
|
|
|
+ *
|
|
|
+ * @param {PluginDefinition} plugin A plugin definition
|
|
|
+ * @emits {WaveSurfer#plugin-added} Called with the name of the plugin that was added
|
|
|
+ * @example wavesurfer.addPlugin(WaveSurfer.minimap());
|
|
|
+ * @return {this} The wavesurfer instance
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "addPlugin",
|
|
|
+ value: function addPlugin(plugin) {
|
|
|
+ var _this3 = this;
|
|
|
+
|
|
|
+ if (!plugin.name) {
|
|
|
+ throw new Error('Plugin does not have a name!');
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!plugin.instance) {
|
|
|
+ throw new Error("Plugin ".concat(plugin.name, " does not have an instance property!"));
|
|
|
+ } // staticProps properties are applied to wavesurfer instance
|
|
|
+
|
|
|
+
|
|
|
+ if (plugin.staticProps) {
|
|
|
+ Object.keys(plugin.staticProps).forEach(function (pluginStaticProp) {
|
|
|
+ /**
|
|
|
+ * Properties defined in a plugin definition's `staticProps` property are added as
|
|
|
+ * staticProps properties of the WaveSurfer instance
|
|
|
+ */
|
|
|
+ _this3[pluginStaticProp] = plugin.staticProps[pluginStaticProp];
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ var Instance = plugin.instance; // turn the plugin instance into an observer
|
|
|
+
|
|
|
+ var observerPrototypeKeys = Object.getOwnPropertyNames(util.Observer.prototype);
|
|
|
+ observerPrototypeKeys.forEach(function (key) {
|
|
|
+ Instance.prototype[key] = util.Observer.prototype[key];
|
|
|
+ });
|
|
|
+ /**
|
|
|
+ * Instantiated plugin classes are added as a property of the wavesurfer
|
|
|
+ * instance
|
|
|
+ * @type {Object}
|
|
|
+ */
|
|
|
+
|
|
|
+ this[plugin.name] = new Instance(plugin.params || {}, this);
|
|
|
+ this.fireEvent('plugin-added', plugin.name);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Initialise a plugin
|
|
|
+ *
|
|
|
+ * @param {string} name A plugin name
|
|
|
+ * @emits WaveSurfer#plugin-initialised
|
|
|
+ * @example wavesurfer.initPlugin('minimap');
|
|
|
+ * @return {this} The wavesurfer instance
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "initPlugin",
|
|
|
+ value: function initPlugin(name) {
|
|
|
+ if (!this[name]) {
|
|
|
+ throw new Error("Plugin ".concat(name, " has not been added yet!"));
|
|
|
+ }
|
|
|
+
|
|
|
+ if (this.initialisedPluginList[name]) {
|
|
|
+ // destroy any already initialised plugins
|
|
|
+ this.destroyPlugin(name);
|
|
|
+ }
|
|
|
+
|
|
|
+ this[name].init();
|
|
|
+ this.initialisedPluginList[name] = true;
|
|
|
+ this.fireEvent('plugin-initialised', name);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Destroy a plugin
|
|
|
+ *
|
|
|
+ * @param {string} name A plugin name
|
|
|
+ * @emits WaveSurfer#plugin-destroyed
|
|
|
+ * @example wavesurfer.destroyPlugin('minimap');
|
|
|
+ * @returns {this} The wavesurfer instance
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "destroyPlugin",
|
|
|
+ value: function destroyPlugin(name) {
|
|
|
+ if (!this[name]) {
|
|
|
+ throw new Error("Plugin ".concat(name, " has not been added yet and cannot be destroyed!"));
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!this.initialisedPluginList[name]) {
|
|
|
+ throw new Error("Plugin ".concat(name, " is not active and cannot be destroyed!"));
|
|
|
+ }
|
|
|
+
|
|
|
+ if (typeof this[name].destroy !== 'function') {
|
|
|
+ throw new Error("Plugin ".concat(name, " does not have a destroy function!"));
|
|
|
+ }
|
|
|
+
|
|
|
+ this[name].destroy();
|
|
|
+ delete this.initialisedPluginList[name];
|
|
|
+ this.fireEvent('plugin-destroyed', name);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Destroy all initialised plugins. Convenience function to use when
|
|
|
+ * wavesurfer is removed
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "destroyAllPlugins",
|
|
|
+ value: function destroyAllPlugins() {
|
|
|
+ var _this4 = this;
|
|
|
+
|
|
|
+ Object.keys(this.initialisedPluginList).forEach(function (name) {
|
|
|
+ return _this4.destroyPlugin(name);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Create the drawer and draw the waveform
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ * @emits WaveSurfer#drawer-created
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "createDrawer",
|
|
|
+ value: function createDrawer() {
|
|
|
+ var _this5 = this;
|
|
|
+
|
|
|
+ this.drawer = new this.Drawer(this.container, this.params);
|
|
|
+ this.drawer.init();
|
|
|
+ this.fireEvent('drawer-created', this.drawer);
|
|
|
+
|
|
|
+ if (this.params.responsive !== false) {
|
|
|
+ window.addEventListener('resize', this._onResize, true);
|
|
|
+ window.addEventListener('orientationchange', this._onResize, true);
|
|
|
+ }
|
|
|
+
|
|
|
+ this.drawer.on('redraw', function () {
|
|
|
+ _this5.drawBuffer();
|
|
|
+
|
|
|
+ _this5.drawer.progress(_this5.backend.getPlayedPercents());
|
|
|
+ }); // Click-to-seek
|
|
|
+
|
|
|
+ this.drawer.on('click', function (e, progress) {
|
|
|
+ setTimeout(function () {
|
|
|
+ return _this5.seekTo(progress);
|
|
|
+ }, 0);
|
|
|
+ }); // Relay the scroll event from the drawer
|
|
|
+
|
|
|
+ this.drawer.on('scroll', function (e) {
|
|
|
+ if (_this5.params.partialRender) {
|
|
|
+ _this5.drawBuffer();
|
|
|
+ }
|
|
|
+
|
|
|
+ _this5.fireEvent('scroll', e);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Create the backend
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ * @emits WaveSurfer#backend-created
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "createBackend",
|
|
|
+ value: function createBackend() {
|
|
|
+ var _this6 = this;
|
|
|
+
|
|
|
+ if (this.backend) {
|
|
|
+ this.backend.destroy();
|
|
|
+ }
|
|
|
+
|
|
|
+ this.backend = new this.Backend(this.params);
|
|
|
+ this.backend.init();
|
|
|
+ this.fireEvent('backend-created', this.backend);
|
|
|
+ this.backend.on('finish', function () {
|
|
|
+ _this6.drawer.progress(_this6.backend.getPlayedPercents());
|
|
|
+
|
|
|
+ _this6.fireEvent('finish');
|
|
|
+ });
|
|
|
+ this.backend.on('play', function () {
|
|
|
+ return _this6.fireEvent('play');
|
|
|
+ });
|
|
|
+ this.backend.on('pause', function () {
|
|
|
+ return _this6.fireEvent('pause');
|
|
|
+ });
|
|
|
+ this.backend.on('audioprocess', function (time) {
|
|
|
+ _this6.drawer.progress(_this6.backend.getPlayedPercents());
|
|
|
+
|
|
|
+ _this6.fireEvent('audioprocess', time);
|
|
|
+ }); // only needed for MediaElement and MediaElementWebAudio backend
|
|
|
+
|
|
|
+ if (this.params.backend === 'MediaElement' || this.params.backend === 'MediaElementWebAudio') {
|
|
|
+ this.backend.on('seek', function () {
|
|
|
+ _this6.drawer.progress(_this6.backend.getPlayedPercents());
|
|
|
+ });
|
|
|
+ this.backend.on('volume', function () {
|
|
|
+ var newVolume = _this6.getVolume();
|
|
|
+
|
|
|
+ _this6.fireEvent('volume', newVolume);
|
|
|
+
|
|
|
+ if (_this6.backend.isMuted !== _this6.isMuted) {
|
|
|
+ _this6.isMuted = _this6.backend.isMuted;
|
|
|
+
|
|
|
+ _this6.fireEvent('mute', _this6.isMuted);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Create the peak cache
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "createPeakCache",
|
|
|
+ value: function createPeakCache() {
|
|
|
+ if (this.params.partialRender) {
|
|
|
+ this.peakCache = new _peakcache.default();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the duration of the audio clip
|
|
|
+ *
|
|
|
+ * @example const duration = wavesurfer.getDuration();
|
|
|
+ * @return {number} Duration in seconds
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getDuration",
|
|
|
+ value: function getDuration() {
|
|
|
+ return this.backend.getDuration();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the current playback position
|
|
|
+ *
|
|
|
+ * @example const currentTime = wavesurfer.getCurrentTime();
|
|
|
+ * @return {number} Playback position in seconds
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getCurrentTime",
|
|
|
+ value: function getCurrentTime() {
|
|
|
+ return this.backend.getCurrentTime();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the current play time in seconds.
|
|
|
+ *
|
|
|
+ * @param {number} seconds A positive number in seconds. E.g. 10 means 10
|
|
|
+ * seconds, 60 means 1 minute
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setCurrentTime",
|
|
|
+ value: function setCurrentTime(seconds) {
|
|
|
+ if (seconds >= this.getDuration()) {
|
|
|
+ this.seekTo(1);
|
|
|
+ } else {
|
|
|
+ this.seekTo(seconds / this.getDuration());
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Starts playback from the current position. Optional start and end
|
|
|
+ * measured in seconds can be used to set the range of audio to play.
|
|
|
+ *
|
|
|
+ * @param {?number} start Position to start at
|
|
|
+ * @param {?number} end Position to end at
|
|
|
+ * @emits WaveSurfer#interaction
|
|
|
+ * @return {Promise} Result of the backend play method
|
|
|
+ * @example
|
|
|
+ * // play from second 1 to 5
|
|
|
+ * wavesurfer.play(1, 5);
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "play",
|
|
|
+ value: function play(start, end) {
|
|
|
+ var _this7 = this;
|
|
|
+
|
|
|
+ this.fireEvent('interaction', function () {
|
|
|
+ return _this7.play(start, end);
|
|
|
+ });
|
|
|
+ return this.backend.play(start, end);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set a point in seconds for playback to stop at.
|
|
|
+ *
|
|
|
+ * @param {number} position Position (in seconds) to stop at
|
|
|
+ * @version 3.3.0
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setPlayEnd",
|
|
|
+ value: function setPlayEnd(position) {
|
|
|
+ this.backend.setPlayEnd(position);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Stops and pauses playback
|
|
|
+ *
|
|
|
+ * @example wavesurfer.pause();
|
|
|
+ * @return {Promise} Result of the backend pause method
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "pause",
|
|
|
+ value: function pause() {
|
|
|
+ if (!this.backend.isPaused()) {
|
|
|
+ return this.backend.pause();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Toggle playback
|
|
|
+ *
|
|
|
+ * @example wavesurfer.playPause();
|
|
|
+ * @return {Promise} Result of the backend play or pause method
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "playPause",
|
|
|
+ value: function playPause() {
|
|
|
+ return this.backend.isPaused() ? this.play() : this.pause();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the current playback state
|
|
|
+ *
|
|
|
+ * @example const isPlaying = wavesurfer.isPlaying();
|
|
|
+ * @return {boolean} False if paused, true if playing
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "isPlaying",
|
|
|
+ value: function isPlaying() {
|
|
|
+ return !this.backend.isPaused();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Skip backward
|
|
|
+ *
|
|
|
+ * @param {?number} seconds Amount to skip back, if not specified `skipLength`
|
|
|
+ * is used
|
|
|
+ * @example wavesurfer.skipBackward();
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "skipBackward",
|
|
|
+ value: function skipBackward(seconds) {
|
|
|
+ this.skip(-seconds || -this.params.skipLength);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Skip forward
|
|
|
+ *
|
|
|
+ * @param {?number} seconds Amount to skip back, if not specified `skipLength`
|
|
|
+ * is used
|
|
|
+ * @example wavesurfer.skipForward();
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "skipForward",
|
|
|
+ value: function skipForward(seconds) {
|
|
|
+ this.skip(seconds || this.params.skipLength);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Skip a number of seconds from the current position (use a negative value
|
|
|
+ * to go backwards).
|
|
|
+ *
|
|
|
+ * @param {number} offset Amount to skip back or forwards
|
|
|
+ * @example
|
|
|
+ * // go back 2 seconds
|
|
|
+ * wavesurfer.skip(-2);
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "skip",
|
|
|
+ value: function skip(offset) {
|
|
|
+ var duration = this.getDuration() || 1;
|
|
|
+ var position = this.getCurrentTime() || 0;
|
|
|
+ position = Math.max(0, Math.min(duration, position + (offset || 0)));
|
|
|
+ this.seekAndCenter(position / duration);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Seeks to a position and centers the view
|
|
|
+ *
|
|
|
+ * @param {number} progress Between 0 (=beginning) and 1 (=end)
|
|
|
+ * @example
|
|
|
+ * // seek and go to the middle of the audio
|
|
|
+ * wavesurfer.seekTo(0.5);
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "seekAndCenter",
|
|
|
+ value: function seekAndCenter(progress) {
|
|
|
+ this.seekTo(progress);
|
|
|
+ this.drawer.recenter(progress);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Seeks to a position
|
|
|
+ *
|
|
|
+ * @param {number} progress Between 0 (=beginning) and 1 (=end)
|
|
|
+ * @emits WaveSurfer#interaction
|
|
|
+ * @emits WaveSurfer#seek
|
|
|
+ * @example
|
|
|
+ * // seek to the middle of the audio
|
|
|
+ * wavesurfer.seekTo(0.5);
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "seekTo",
|
|
|
+ value: function seekTo(progress) {
|
|
|
+ var _this8 = this;
|
|
|
+
|
|
|
+ // return an error if progress is not a number between 0 and 1
|
|
|
+ if (typeof progress !== 'number' || !isFinite(progress) || progress < 0 || progress > 1) {
|
|
|
+ throw new Error('Error calling wavesurfer.seekTo, parameter must be a number between 0 and 1!');
|
|
|
+ }
|
|
|
+
|
|
|
+ this.fireEvent('interaction', function () {
|
|
|
+ return _this8.seekTo(progress);
|
|
|
+ });
|
|
|
+ var paused = this.backend.isPaused(); // avoid draw wrong position while playing backward seeking
|
|
|
+
|
|
|
+ if (!paused) {
|
|
|
+ this.backend.pause();
|
|
|
+ } // avoid small scrolls while paused seeking
|
|
|
+
|
|
|
+
|
|
|
+ var oldScrollParent = this.params.scrollParent;
|
|
|
+ this.params.scrollParent = false;
|
|
|
+ this.backend.seekTo(progress * this.getDuration());
|
|
|
+ this.drawer.progress(progress);
|
|
|
+
|
|
|
+ if (!paused) {
|
|
|
+ this.backend.play();
|
|
|
+ }
|
|
|
+
|
|
|
+ this.params.scrollParent = oldScrollParent;
|
|
|
+ this.fireEvent('seek', progress);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Stops and goes to the beginning.
|
|
|
+ *
|
|
|
+ * @example wavesurfer.stop();
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "stop",
|
|
|
+ value: function stop() {
|
|
|
+ this.pause();
|
|
|
+ this.seekTo(0);
|
|
|
+ this.drawer.progress(0);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Sets the ID of the audio device to use for output and returns a Promise.
|
|
|
+ *
|
|
|
+ * @param {string} deviceId String value representing underlying output
|
|
|
+ * device
|
|
|
+ * @returns {Promise} `Promise` that resolves to `undefined` when there are
|
|
|
+ * no errors detected.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setSinkId",
|
|
|
+ value: function setSinkId(deviceId) {
|
|
|
+ return this.backend.setSinkId(deviceId);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the playback volume.
|
|
|
+ *
|
|
|
+ * @param {number} newVolume A value between 0 and 1, 0 being no
|
|
|
+ * volume and 1 being full volume.
|
|
|
+ * @emits WaveSurfer#volume
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setVolume",
|
|
|
+ value: function setVolume(newVolume) {
|
|
|
+ this.backend.setVolume(newVolume);
|
|
|
+ this.fireEvent('volume', newVolume);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the playback volume.
|
|
|
+ *
|
|
|
+ * @return {number} A value between 0 and 1, 0 being no
|
|
|
+ * volume and 1 being full volume.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getVolume",
|
|
|
+ value: function getVolume() {
|
|
|
+ return this.backend.getVolume();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the playback rate.
|
|
|
+ *
|
|
|
+ * @param {number} rate A positive number. E.g. 0.5 means half the normal
|
|
|
+ * speed, 2 means double speed and so on.
|
|
|
+ * @example wavesurfer.setPlaybackRate(2);
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setPlaybackRate",
|
|
|
+ value: function setPlaybackRate(rate) {
|
|
|
+ this.backend.setPlaybackRate(rate);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the playback rate.
|
|
|
+ *
|
|
|
+ * @return {number} The current playback rate.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getPlaybackRate",
|
|
|
+ value: function getPlaybackRate() {
|
|
|
+ return this.backend.getPlaybackRate();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Toggle the volume on and off. If not currently muted it will save the
|
|
|
+ * current volume value and turn the volume off. If currently muted then it
|
|
|
+ * will restore the volume to the saved value, and then rest the saved
|
|
|
+ * value.
|
|
|
+ *
|
|
|
+ * @example wavesurfer.toggleMute();
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "toggleMute",
|
|
|
+ value: function toggleMute() {
|
|
|
+ this.setMute(!this.isMuted);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Enable or disable muted audio
|
|
|
+ *
|
|
|
+ * @param {boolean} mute Specify `true` to mute audio.
|
|
|
+ * @emits WaveSurfer#volume
|
|
|
+ * @emits WaveSurfer#mute
|
|
|
+ * @example
|
|
|
+ * // unmute
|
|
|
+ * wavesurfer.setMute(false);
|
|
|
+ * console.log(wavesurfer.getMute()) // logs false
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setMute",
|
|
|
+ value: function setMute(mute) {
|
|
|
+ // ignore all muting requests if the audio is already in that state
|
|
|
+ if (mute === this.isMuted) {
|
|
|
+ this.fireEvent('mute', this.isMuted);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (this.backend.setMute) {
|
|
|
+ // Backends such as the MediaElement backend have their own handling
|
|
|
+ // of mute, let them handle it.
|
|
|
+ this.backend.setMute(mute);
|
|
|
+ this.isMuted = mute;
|
|
|
+ } else {
|
|
|
+ if (mute) {
|
|
|
+ // If currently not muted then save current volume,
|
|
|
+ // turn off the volume and update the mute properties
|
|
|
+ this.savedVolume = this.backend.getVolume();
|
|
|
+ this.backend.setVolume(0);
|
|
|
+ this.isMuted = true;
|
|
|
+ this.fireEvent('volume', 0);
|
|
|
+ } else {
|
|
|
+ // If currently muted then restore to the saved volume
|
|
|
+ // and update the mute properties
|
|
|
+ this.backend.setVolume(this.savedVolume);
|
|
|
+ this.isMuted = false;
|
|
|
+ this.fireEvent('volume', this.savedVolume);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ this.fireEvent('mute', this.isMuted);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the current mute status.
|
|
|
+ *
|
|
|
+ * @example const isMuted = wavesurfer.getMute();
|
|
|
+ * @return {boolean} Current mute status
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getMute",
|
|
|
+ value: function getMute() {
|
|
|
+ return this.isMuted;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the list of current set filters as an array.
|
|
|
+ *
|
|
|
+ * Filters must be set with setFilters method first
|
|
|
+ *
|
|
|
+ * @return {array} List of enabled filters
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getFilters",
|
|
|
+ value: function getFilters() {
|
|
|
+ return this.backend.filters || [];
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Toggles `scrollParent` and redraws
|
|
|
+ *
|
|
|
+ * @example wavesurfer.toggleScroll();
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "toggleScroll",
|
|
|
+ value: function toggleScroll() {
|
|
|
+ this.params.scrollParent = !this.params.scrollParent;
|
|
|
+ this.drawBuffer();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Toggle mouse interaction
|
|
|
+ *
|
|
|
+ * @example wavesurfer.toggleInteraction();
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "toggleInteraction",
|
|
|
+ value: function toggleInteraction() {
|
|
|
+ this.params.interact = !this.params.interact;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the fill color of the waveform after the cursor.
|
|
|
+ *
|
|
|
+ * @return {string} A CSS color string.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getWaveColor",
|
|
|
+ value: function getWaveColor() {
|
|
|
+ return this.params.waveColor;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the fill color of the waveform after the cursor.
|
|
|
+ *
|
|
|
+ * @param {string} color A CSS color string.
|
|
|
+ * @example wavesurfer.setWaveColor('#ddd');
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setWaveColor",
|
|
|
+ value: function setWaveColor(color) {
|
|
|
+ this.params.waveColor = color;
|
|
|
+ this.drawBuffer();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the fill color of the waveform behind the cursor.
|
|
|
+ *
|
|
|
+ * @return {string} A CSS color string.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getProgressColor",
|
|
|
+ value: function getProgressColor() {
|
|
|
+ return this.params.progressColor;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the fill color of the waveform behind the cursor.
|
|
|
+ *
|
|
|
+ * @param {string} color A CSS color string.
|
|
|
+ * @example wavesurfer.setProgressColor('#400');
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setProgressColor",
|
|
|
+ value: function setProgressColor(color) {
|
|
|
+ this.params.progressColor = color;
|
|
|
+ this.drawBuffer();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the background color of the waveform container.
|
|
|
+ *
|
|
|
+ * @return {string} A CSS color string.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getBackgroundColor",
|
|
|
+ value: function getBackgroundColor() {
|
|
|
+ return this.params.backgroundColor;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the background color of the waveform container.
|
|
|
+ *
|
|
|
+ * @param {string} color A CSS color string.
|
|
|
+ * @example wavesurfer.setBackgroundColor('#FF00FF');
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setBackgroundColor",
|
|
|
+ value: function setBackgroundColor(color) {
|
|
|
+ this.params.backgroundColor = color;
|
|
|
+ util.style(this.container, {
|
|
|
+ background: this.params.backgroundColor
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the fill color of the cursor indicating the playhead
|
|
|
+ * position.
|
|
|
+ *
|
|
|
+ * @return {string} A CSS color string.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getCursorColor",
|
|
|
+ value: function getCursorColor() {
|
|
|
+ return this.params.cursorColor;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the fill color of the cursor indicating the playhead
|
|
|
+ * position.
|
|
|
+ *
|
|
|
+ * @param {string} color A CSS color string.
|
|
|
+ * @example wavesurfer.setCursorColor('#222');
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setCursorColor",
|
|
|
+ value: function setCursorColor(color) {
|
|
|
+ this.params.cursorColor = color;
|
|
|
+ this.drawer.updateCursor();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the height of the waveform.
|
|
|
+ *
|
|
|
+ * @return {number} Height measured in pixels.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getHeight",
|
|
|
+ value: function getHeight() {
|
|
|
+ return this.params.height;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the height of the waveform.
|
|
|
+ *
|
|
|
+ * @param {number} height Height measured in pixels.
|
|
|
+ * @example wavesurfer.setHeight(200);
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setHeight",
|
|
|
+ value: function setHeight(height) {
|
|
|
+ this.params.height = height;
|
|
|
+ this.drawer.setHeight(height * this.params.pixelRatio);
|
|
|
+ this.drawBuffer();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Hide channels from being drawn on the waveform if splitting channels.
|
|
|
+ *
|
|
|
+ * For example, if we want to draw only the peaks for the right stereo channel:
|
|
|
+ *
|
|
|
+ * const wavesurfer = new WaveSurfer.create({...splitChannels: true});
|
|
|
+ * wavesurfer.load('stereo_audio.mp3');
|
|
|
+ *
|
|
|
+ * wavesurfer.setFilteredChannel([0]); <-- hide left channel peaks.
|
|
|
+ *
|
|
|
+ * @param {array} channelIndices Channels to be filtered out from drawing.
|
|
|
+ * @version 4.0.0
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setFilteredChannels",
|
|
|
+ value: function setFilteredChannels(channelIndices) {
|
|
|
+ this.params.splitChannelsOptions.filterChannels = channelIndices;
|
|
|
+ this.drawBuffer();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the correct peaks for current wave view-port and render wave
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ * @emits WaveSurfer#redraw
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "drawBuffer",
|
|
|
+ value: function drawBuffer() {
|
|
|
+ var nominalWidth = Math.round(this.getDuration() * this.params.minPxPerSec * this.params.pixelRatio);
|
|
|
+ var parentWidth = this.drawer.getWidth();
|
|
|
+ var width = nominalWidth; // always start at 0 after zooming for scrolling : issue redraw left part
|
|
|
+
|
|
|
+ var start = 0;
|
|
|
+ var end = Math.max(start + parentWidth, width); // Fill container
|
|
|
+
|
|
|
+ if (this.params.fillParent && (!this.params.scrollParent || nominalWidth < parentWidth)) {
|
|
|
+ width = parentWidth;
|
|
|
+ start = 0;
|
|
|
+ end = width;
|
|
|
+ }
|
|
|
+
|
|
|
+ var peaks;
|
|
|
+
|
|
|
+ if (this.params.partialRender) {
|
|
|
+ var newRanges = this.peakCache.addRangeToPeakCache(width, start, end);
|
|
|
+ var i;
|
|
|
+
|
|
|
+ for (i = 0; i < newRanges.length; i++) {
|
|
|
+ peaks = this.backend.getPeaks(width, newRanges[i][0], newRanges[i][1]);
|
|
|
+ this.drawer.drawPeaks(peaks, width, newRanges[i][0], newRanges[i][1]);
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ peaks = this.backend.getPeaks(width, start, end);
|
|
|
+ this.drawer.drawPeaks(peaks, width, start, end);
|
|
|
+ }
|
|
|
+
|
|
|
+ this.fireEvent('redraw', peaks, width);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Horizontally zooms the waveform in and out. It also changes the parameter
|
|
|
+ * `minPxPerSec` and enables the `scrollParent` option. Calling the function
|
|
|
+ * with a falsey parameter will reset the zoom state.
|
|
|
+ *
|
|
|
+ * @param {?number} pxPerSec Number of horizontal pixels per second of
|
|
|
+ * audio, if none is set the waveform returns to unzoomed state
|
|
|
+ * @emits WaveSurfer#zoom
|
|
|
+ * @example wavesurfer.zoom(20);
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "zoom",
|
|
|
+ value: function zoom(pxPerSec) {
|
|
|
+ if (!pxPerSec) {
|
|
|
+ this.params.minPxPerSec = this.defaultParams.minPxPerSec;
|
|
|
+ this.params.scrollParent = false;
|
|
|
+ } else {
|
|
|
+ this.params.minPxPerSec = pxPerSec;
|
|
|
+ this.params.scrollParent = true;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.drawBuffer();
|
|
|
+ this.drawer.progress(this.backend.getPlayedPercents());
|
|
|
+ this.drawer.recenter(this.getCurrentTime() / this.getDuration());
|
|
|
+ this.fireEvent('zoom', pxPerSec);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Decode buffer and load
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ * @param {ArrayBuffer} arraybuffer Buffer to process
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "loadArrayBuffer",
|
|
|
+ value: function loadArrayBuffer(arraybuffer) {
|
|
|
+ var _this9 = this;
|
|
|
+
|
|
|
+ this.decodeArrayBuffer(arraybuffer, function (data) {
|
|
|
+ if (!_this9.isDestroyed) {
|
|
|
+ _this9.loadDecodedBuffer(data);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Directly load an externally decoded AudioBuffer
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ * @param {AudioBuffer} buffer Buffer to process
|
|
|
+ * @emits WaveSurfer#ready
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "loadDecodedBuffer",
|
|
|
+ value: function loadDecodedBuffer(buffer) {
|
|
|
+ this.backend.load(buffer);
|
|
|
+ this.drawBuffer();
|
|
|
+ this.isReady = true;
|
|
|
+ this.fireEvent('ready');
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Loads audio data from a Blob or File object
|
|
|
+ *
|
|
|
+ * @param {Blob|File} blob Audio data
|
|
|
+ * @example
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "loadBlob",
|
|
|
+ value: function loadBlob(blob) {
|
|
|
+ var _this10 = this;
|
|
|
+
|
|
|
+ // Create file reader
|
|
|
+ var reader = new FileReader();
|
|
|
+ reader.addEventListener('progress', function (e) {
|
|
|
+ return _this10.onProgress(e);
|
|
|
+ });
|
|
|
+ reader.addEventListener('load', function (e) {
|
|
|
+ return _this10.loadArrayBuffer(e.target.result);
|
|
|
+ });
|
|
|
+ reader.addEventListener('error', function () {
|
|
|
+ return _this10.fireEvent('error', 'Error reading file');
|
|
|
+ });
|
|
|
+ reader.readAsArrayBuffer(blob);
|
|
|
+ this.empty();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Loads audio and re-renders the waveform.
|
|
|
+ *
|
|
|
+ * @param {string|HTMLMediaElement} url The url of the audio file or the
|
|
|
+ * audio element with the audio
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Wavesurfer does not have to decode
|
|
|
+ * the audio to render the waveform if this is specified
|
|
|
+ * @param {?string} preload (Use with backend `MediaElement` and `MediaElementWebAudio`)
|
|
|
+ * `'none'|'metadata'|'auto'` Preload attribute for the media element
|
|
|
+ * @param {?number} duration The duration of the audio. This is used to
|
|
|
+ * render the peaks data in the correct size for the audio duration (as
|
|
|
+ * befits the current `minPxPerSec` and zoom value) without having to decode
|
|
|
+ * the audio.
|
|
|
+ * @returns {void}
|
|
|
+ * @throws Will throw an error if the `url` argument is empty.
|
|
|
+ * @example
|
|
|
+ * // uses fetch or media element to load file (depending on backend)
|
|
|
+ * wavesurfer.load('http://example.com/demo.wav');
|
|
|
+ *
|
|
|
+ * // setting preload attribute with media element backend and supplying
|
|
|
+ * // peaks
|
|
|
+ * wavesurfer.load(
|
|
|
+ * 'http://example.com/demo.wav',
|
|
|
+ * [0.0218, 0.0183, 0.0165, 0.0198, 0.2137, 0.2888],
|
|
|
+ * true
|
|
|
+ * );
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "load",
|
|
|
+ value: function load(url, peaks, preload, duration) {
|
|
|
+ if (!url) {
|
|
|
+ throw new Error('url parameter cannot be empty');
|
|
|
+ }
|
|
|
+
|
|
|
+ this.empty();
|
|
|
+
|
|
|
+ if (preload) {
|
|
|
+ // check whether the preload attribute will be usable and if not log
|
|
|
+ // a warning listing the reasons why not and nullify the variable
|
|
|
+ var preloadIgnoreReasons = {
|
|
|
+ "Preload is not 'auto', 'none' or 'metadata'": ['auto', 'metadata', 'none'].indexOf(preload) === -1,
|
|
|
+ 'Peaks are not provided': !peaks,
|
|
|
+ "Backend is not of type 'MediaElement' or 'MediaElementWebAudio'": ['MediaElement', 'MediaElementWebAudio'].indexOf(this.params.backend) === -1,
|
|
|
+ 'Url is not of type string': typeof url !== 'string'
|
|
|
+ };
|
|
|
+ var activeReasons = Object.keys(preloadIgnoreReasons).filter(function (reason) {
|
|
|
+ return preloadIgnoreReasons[reason];
|
|
|
+ });
|
|
|
+
|
|
|
+ if (activeReasons.length) {
|
|
|
+ // eslint-disable-next-line no-console
|
|
|
+ console.warn('Preload parameter of wavesurfer.load will be ignored because:\n\t- ' + activeReasons.join('\n\t- ')); // stop invalid values from being used
|
|
|
+
|
|
|
+ preload = null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ switch (this.params.backend) {
|
|
|
+ case 'WebAudio':
|
|
|
+ return this.loadBuffer(url, peaks, duration);
|
|
|
+
|
|
|
+ case 'MediaElement':
|
|
|
+ case 'MediaElementWebAudio':
|
|
|
+ return this.loadMediaElement(url, peaks, preload, duration);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Loads audio using Web Audio buffer backend.
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ * @param {string} url URL of audio file
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Peaks data
|
|
|
+ * @param {?number} duration Optional duration of audio file
|
|
|
+ * @returns {void}
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "loadBuffer",
|
|
|
+ value: function loadBuffer(url, peaks, duration) {
|
|
|
+ var _this11 = this;
|
|
|
+
|
|
|
+ var load = function load(action) {
|
|
|
+ if (action) {
|
|
|
+ _this11.tmpEvents.push(_this11.once('ready', action));
|
|
|
+ }
|
|
|
+
|
|
|
+ return _this11.getArrayBuffer(url, function (data) {
|
|
|
+ return _this11.loadArrayBuffer(data);
|
|
|
+ });
|
|
|
+ };
|
|
|
+
|
|
|
+ if (peaks) {
|
|
|
+ this.backend.setPeaks(peaks, duration);
|
|
|
+ this.drawBuffer();
|
|
|
+ this.tmpEvents.push(this.once('interaction', load));
|
|
|
+ } else {
|
|
|
+ return load();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Either create a media element, or load an existing media element.
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ * @param {string|HTMLMediaElement} urlOrElt Either a path to a media file, or an
|
|
|
+ * existing HTML5 Audio/Video Element
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Array of peaks. Required to bypass web audio
|
|
|
+ * dependency
|
|
|
+ * @param {?boolean} preload Set to true if the preload attribute of the
|
|
|
+ * audio element should be enabled
|
|
|
+ * @param {?number} duration Optional duration of audio file
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "loadMediaElement",
|
|
|
+ value: function loadMediaElement(urlOrElt, peaks, preload, duration) {
|
|
|
+ var _this12 = this;
|
|
|
+
|
|
|
+ var url = urlOrElt;
|
|
|
+
|
|
|
+ if (typeof urlOrElt === 'string') {
|
|
|
+ this.backend.load(url, this.mediaContainer, peaks, preload);
|
|
|
+ } else {
|
|
|
+ var elt = urlOrElt;
|
|
|
+ this.backend.loadElt(elt, peaks); // If peaks are not provided,
|
|
|
+ // url = element.src so we can get peaks with web audio
|
|
|
+
|
|
|
+ url = elt.src;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.tmpEvents.push(this.backend.once('canplay', function () {
|
|
|
+ // ignore when backend was already destroyed
|
|
|
+ if (!_this12.backend.destroyed) {
|
|
|
+ _this12.drawBuffer();
|
|
|
+
|
|
|
+ _this12.isReady = true;
|
|
|
+
|
|
|
+ _this12.fireEvent('ready');
|
|
|
+ }
|
|
|
+ }), this.backend.once('error', function (err) {
|
|
|
+ return _this12.fireEvent('error', err);
|
|
|
+ }));
|
|
|
+
|
|
|
+ if (peaks) {
|
|
|
+ this.backend.setPeaks(peaks, duration);
|
|
|
+ this.drawBuffer();
|
|
|
+ } // If no pre-decoded peaks are provided, or are provided with
|
|
|
+ // forceDecode flag, attempt to download the audio file and decode it
|
|
|
+ // with Web Audio.
|
|
|
+
|
|
|
+
|
|
|
+ if ((!peaks || this.params.forceDecode) && this.backend.supportsWebAudio()) {
|
|
|
+ this.getArrayBuffer(url, function (arraybuffer) {
|
|
|
+ _this12.decodeArrayBuffer(arraybuffer, function (buffer) {
|
|
|
+ _this12.backend.buffer = buffer;
|
|
|
+
|
|
|
+ _this12.backend.setPeaks(null);
|
|
|
+
|
|
|
+ _this12.drawBuffer();
|
|
|
+
|
|
|
+ _this12.fireEvent('waveform-ready');
|
|
|
+ });
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Decode an array buffer and pass data to a callback
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ * @param {Object} arraybuffer The array buffer to decode
|
|
|
+ * @param {function} callback The function to call on complete
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "decodeArrayBuffer",
|
|
|
+ value: function decodeArrayBuffer(arraybuffer, callback) {
|
|
|
+ var _this13 = this;
|
|
|
+
|
|
|
+ this.arraybuffer = arraybuffer;
|
|
|
+ this.backend.decodeArrayBuffer(arraybuffer, function (data) {
|
|
|
+ // Only use the decoded data if we haven't been destroyed or
|
|
|
+ // another decode started in the meantime
|
|
|
+ if (!_this13.isDestroyed && _this13.arraybuffer == arraybuffer) {
|
|
|
+ callback(data);
|
|
|
+ _this13.arraybuffer = null;
|
|
|
+ }
|
|
|
+ }, function () {
|
|
|
+ return _this13.fireEvent('error', 'Error decoding audiobuffer');
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Load an array buffer using fetch and pass the result to a callback
|
|
|
+ *
|
|
|
+ * @param {string} url The URL of the file object
|
|
|
+ * @param {function} callback The function to call on complete
|
|
|
+ * @returns {util.fetchFile} fetch call
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getArrayBuffer",
|
|
|
+ value: function getArrayBuffer(url, callback) {
|
|
|
+ var _this14 = this;
|
|
|
+
|
|
|
+ var options = Object.assign({
|
|
|
+ url: url,
|
|
|
+ responseType: 'arraybuffer'
|
|
|
+ }, this.params.xhr);
|
|
|
+ var request = util.fetchFile(options);
|
|
|
+ this.currentRequest = request;
|
|
|
+ this.tmpEvents.push(request.on('progress', function (e) {
|
|
|
+ _this14.onProgress(e);
|
|
|
+ }), request.on('success', function (data) {
|
|
|
+ callback(data);
|
|
|
+ _this14.currentRequest = null;
|
|
|
+ }), request.on('error', function (e) {
|
|
|
+ _this14.fireEvent('error', e);
|
|
|
+
|
|
|
+ _this14.currentRequest = null;
|
|
|
+ }));
|
|
|
+ return request;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Called while the audio file is loading
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ * @param {Event} e Progress event
|
|
|
+ * @emits WaveSurfer#loading
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "onProgress",
|
|
|
+ value: function onProgress(e) {
|
|
|
+ var percentComplete;
|
|
|
+
|
|
|
+ if (e.lengthComputable) {
|
|
|
+ percentComplete = e.loaded / e.total;
|
|
|
+ } else {
|
|
|
+ // Approximate progress with an asymptotic
|
|
|
+ // function, and assume downloads in the 1-3 MB range.
|
|
|
+ percentComplete = e.loaded / (e.loaded + 1000000);
|
|
|
+ }
|
|
|
+
|
|
|
+ this.fireEvent('loading', Math.round(percentComplete * 100), e.target);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Exports PCM data into a JSON array and opens in a new window.
|
|
|
+ *
|
|
|
+ * @param {number} length=1024 The scale in which to export the peaks
|
|
|
+ * @param {number} accuracy=10000
|
|
|
+ * @param {?boolean} noWindow Set to true to disable opening a new
|
|
|
+ * window with the JSON
|
|
|
+ * @param {number} start Start index
|
|
|
+ * @param {number} end End index
|
|
|
+ * @return {Promise} Promise that resolves with array of peaks
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "exportPCM",
|
|
|
+ value: function exportPCM(length, accuracy, noWindow, start, end) {
|
|
|
+ length = length || 1024;
|
|
|
+ start = start || 0;
|
|
|
+ accuracy = accuracy || 10000;
|
|
|
+ noWindow = noWindow || false;
|
|
|
+ var peaks = this.backend.getPeaks(length, start, end);
|
|
|
+ var arr = [].map.call(peaks, function (val) {
|
|
|
+ return Math.round(val * accuracy) / accuracy;
|
|
|
+ });
|
|
|
+ return new Promise(function (resolve, reject) {
|
|
|
+ var json = JSON.stringify(arr);
|
|
|
+
|
|
|
+ if (!noWindow) {
|
|
|
+ window.open('data:application/json;charset=utf-8,' + encodeURIComponent(json));
|
|
|
+ }
|
|
|
+
|
|
|
+ resolve(json);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Save waveform image as data URI.
|
|
|
+ *
|
|
|
+ * The default format is `'image/png'`. Other supported types are
|
|
|
+ * `'image/jpeg'` and `'image/webp'`.
|
|
|
+ *
|
|
|
+ * @param {string} format='image/png' A string indicating the image format.
|
|
|
+ * The default format type is `'image/png'`.
|
|
|
+ * @param {number} quality=1 A number between 0 and 1 indicating the image
|
|
|
+ * quality to use for image formats that use lossy compression such as
|
|
|
+ * `'image/jpeg'`` and `'image/webp'`.
|
|
|
+ * @param {string} type Image data type to return. Either 'dataURL' (default)
|
|
|
+ * or 'blob'.
|
|
|
+ * @return {string|string[]|Promise} When using `'dataURL'` type this returns
|
|
|
+ * a single data URL or an array of data URLs, one for each canvas. When using
|
|
|
+ * `'blob'` type this returns a `Promise` resolving with an array of `Blob`
|
|
|
+ * instances, one for each canvas.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "exportImage",
|
|
|
+ value: function exportImage(format, quality, type) {
|
|
|
+ if (!format) {
|
|
|
+ format = 'image/png';
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!quality) {
|
|
|
+ quality = 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!type) {
|
|
|
+ type = 'dataURL';
|
|
|
+ }
|
|
|
+
|
|
|
+ return this.drawer.getImage(format, quality, type);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Cancel any fetch request currently in progress
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "cancelAjax",
|
|
|
+ value: function cancelAjax() {
|
|
|
+ if (this.currentRequest && this.currentRequest.controller) {
|
|
|
+ // If the current request has a ProgressHandler, then its ReadableStream might need to be cancelled too
|
|
|
+ // See: Wavesurfer issue #2042
|
|
|
+ // See Firefox bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1583815
|
|
|
+ if (this.currentRequest._reader) {
|
|
|
+ // Ignoring exceptions thrown by call to cancel()
|
|
|
+ this.currentRequest._reader.cancel().catch(function (err) {});
|
|
|
+ }
|
|
|
+
|
|
|
+ this.currentRequest.controller.abort();
|
|
|
+ this.currentRequest = null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "clearTmpEvents",
|
|
|
+ value: function clearTmpEvents() {
|
|
|
+ this.tmpEvents.forEach(function (e) {
|
|
|
+ return e.un();
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Display empty waveform.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "empty",
|
|
|
+ value: function empty() {
|
|
|
+ if (!this.backend.isPaused()) {
|
|
|
+ this.stop();
|
|
|
+ this.backend.disconnectSource();
|
|
|
+ }
|
|
|
+
|
|
|
+ this.isReady = false;
|
|
|
+ this.cancelAjax();
|
|
|
+ this.clearTmpEvents(); // empty drawer
|
|
|
+
|
|
|
+ this.drawer.progress(0);
|
|
|
+ this.drawer.setWidth(0);
|
|
|
+ this.drawer.drawPeaks({
|
|
|
+ length: this.drawer.getWidth()
|
|
|
+ }, 0);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Remove events, elements and disconnect WebAudio nodes.
|
|
|
+ *
|
|
|
+ * @emits WaveSurfer#destroy
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "destroy",
|
|
|
+ value: function destroy() {
|
|
|
+ this.destroyAllPlugins();
|
|
|
+ this.fireEvent('destroy');
|
|
|
+ this.cancelAjax();
|
|
|
+ this.clearTmpEvents();
|
|
|
+ this.unAll();
|
|
|
+
|
|
|
+ if (this.params.responsive !== false) {
|
|
|
+ window.removeEventListener('resize', this._onResize, true);
|
|
|
+ window.removeEventListener('orientationchange', this._onResize, true);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (this.backend) {
|
|
|
+ this.backend.destroy();
|
|
|
+ }
|
|
|
+
|
|
|
+ if (this.drawer) {
|
|
|
+ this.drawer.destroy();
|
|
|
+ }
|
|
|
+
|
|
|
+ this.isDestroyed = true;
|
|
|
+ this.isReady = false;
|
|
|
+ this.arraybuffer = null;
|
|
|
+ }
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return WaveSurfer;
|
|
|
+}(util.Observer);
|
|
|
+
|
|
|
+exports.default = WaveSurfer;
|
|
|
+WaveSurfer.VERSION = "4.1.1";
|
|
|
+WaveSurfer.util = util;
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ }),
|
|
|
+
|
|
|
+/***/ "./src/webaudio.js":
|
|
|
+/*!*************************!*\
|
|
|
+ !*** ./src/webaudio.js ***!
|
|
|
+ \*************************/
|
|
|
+/*! no static exports found */
|
|
|
+/***/ (function(module, exports, __webpack_require__) {
|
|
|
+
|
|
|
+"use strict";
|
|
|
+
|
|
|
+
|
|
|
+Object.defineProperty(exports, "__esModule", {
|
|
|
+ value: true
|
|
|
+});
|
|
|
+exports.default = void 0;
|
|
|
+
|
|
|
+var util = _interopRequireWildcard(__webpack_require__(/*! ./util */ "./src/util/index.js"));
|
|
|
+
|
|
|
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }
|
|
|
+
|
|
|
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
|
|
|
+
|
|
|
+function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
+
|
|
|
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
|
|
|
+
|
|
|
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
+
|
|
|
+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, descriptor.key, descriptor); } }
|
|
|
+
|
|
|
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
|
|
|
+
|
|
|
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
|
|
|
+
|
|
|
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
|
|
|
+
|
|
|
+function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
|
|
|
+
|
|
|
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
|
|
|
+
|
|
|
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
|
|
|
+
|
|
|
+function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
|
|
|
+
|
|
|
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
|
|
|
+
|
|
|
+// using constants to prevent someone writing the string wrong
|
|
|
+var PLAYING = 'playing';
|
|
|
+var PAUSED = 'paused';
|
|
|
+var FINISHED = 'finished';
|
|
|
+/**
|
|
|
+ * WebAudio backend
|
|
|
+ *
|
|
|
+ * @extends {Observer}
|
|
|
+ */
|
|
|
+
|
|
|
+var WebAudio = /*#__PURE__*/function (_util$Observer) {
|
|
|
+ _inherits(WebAudio, _util$Observer);
|
|
|
+
|
|
|
+ var _super = _createSuper(WebAudio);
|
|
|
+
|
|
|
+ _createClass(WebAudio, [{
|
|
|
+ key: "supportsWebAudio",
|
|
|
+
|
|
|
+ /** scriptBufferSize: size of the processing buffer */
|
|
|
+
|
|
|
+ /** audioContext: allows to process audio with WebAudio API */
|
|
|
+
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Does the browser support this backend
|
|
|
+ *
|
|
|
+ * @return {boolean} Whether or not this browser supports this backend
|
|
|
+ */
|
|
|
+ value: function supportsWebAudio() {
|
|
|
+ return !!(window.AudioContext || window.webkitAudioContext);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the audio context used by this backend or create one
|
|
|
+ *
|
|
|
+ * @return {AudioContext} Existing audio context, or creates a new one
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getAudioContext",
|
|
|
+ value: function getAudioContext() {
|
|
|
+ if (!window.WaveSurferAudioContext) {
|
|
|
+ window.WaveSurferAudioContext = new (window.AudioContext || window.webkitAudioContext)();
|
|
|
+ }
|
|
|
+
|
|
|
+ return window.WaveSurferAudioContext;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the offline audio context used by this backend or create one
|
|
|
+ *
|
|
|
+ * @param {number} sampleRate The sample rate to use
|
|
|
+ * @return {OfflineAudioContext} Existing offline audio context, or creates
|
|
|
+ * a new one
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getOfflineAudioContext",
|
|
|
+ value: function getOfflineAudioContext(sampleRate) {
|
|
|
+ if (!window.WaveSurferOfflineAudioContext) {
|
|
|
+ window.WaveSurferOfflineAudioContext = new (window.OfflineAudioContext || window.webkitOfflineAudioContext)(1, 2, sampleRate);
|
|
|
+ }
|
|
|
+
|
|
|
+ return window.WaveSurferOfflineAudioContext;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Construct the backend
|
|
|
+ *
|
|
|
+ * @param {WavesurferParams} params Wavesurfer parameters
|
|
|
+ */
|
|
|
+
|
|
|
+ }]);
|
|
|
+
|
|
|
+ function WebAudio(params) {
|
|
|
+ var _this$stateBehaviors, _this$states;
|
|
|
+
|
|
|
+ var _this;
|
|
|
+
|
|
|
+ _classCallCheck(this, WebAudio);
|
|
|
+
|
|
|
+ _this = _super.call(this);
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.audioContext = null;
|
|
|
+ _this.offlineAudioContext = null;
|
|
|
+ _this.stateBehaviors = (_this$stateBehaviors = {}, _defineProperty(_this$stateBehaviors, PLAYING, {
|
|
|
+ init: function init() {
|
|
|
+ this.addOnAudioProcess();
|
|
|
+ },
|
|
|
+ getPlayedPercents: function getPlayedPercents() {
|
|
|
+ var duration = this.getDuration();
|
|
|
+ return this.getCurrentTime() / duration || 0;
|
|
|
+ },
|
|
|
+ getCurrentTime: function getCurrentTime() {
|
|
|
+ return this.startPosition + this.getPlayedTime();
|
|
|
+ }
|
|
|
+ }), _defineProperty(_this$stateBehaviors, PAUSED, {
|
|
|
+ init: function init() {
|
|
|
+ this.removeOnAudioProcess();
|
|
|
+ },
|
|
|
+ getPlayedPercents: function getPlayedPercents() {
|
|
|
+ var duration = this.getDuration();
|
|
|
+ return this.getCurrentTime() / duration || 0;
|
|
|
+ },
|
|
|
+ getCurrentTime: function getCurrentTime() {
|
|
|
+ return this.startPosition;
|
|
|
+ }
|
|
|
+ }), _defineProperty(_this$stateBehaviors, FINISHED, {
|
|
|
+ init: function init() {
|
|
|
+ this.removeOnAudioProcess();
|
|
|
+ this.fireEvent('finish');
|
|
|
+ },
|
|
|
+ getPlayedPercents: function getPlayedPercents() {
|
|
|
+ return 1;
|
|
|
+ },
|
|
|
+ getCurrentTime: function getCurrentTime() {
|
|
|
+ return this.getDuration();
|
|
|
+ }
|
|
|
+ }), _this$stateBehaviors);
|
|
|
+ _this.params = params;
|
|
|
+ /** ac: Audio Context instance */
|
|
|
+
|
|
|
+ _this.ac = params.audioContext || (_this.supportsWebAudio() ? _this.getAudioContext() : {});
|
|
|
+ /**@private */
|
|
|
+
|
|
|
+ _this.lastPlay = _this.ac.currentTime;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.startPosition = 0;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.scheduledPause = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.states = (_this$states = {}, _defineProperty(_this$states, PLAYING, Object.create(_this.stateBehaviors[PLAYING])), _defineProperty(_this$states, PAUSED, Object.create(_this.stateBehaviors[PAUSED])), _defineProperty(_this$states, FINISHED, Object.create(_this.stateBehaviors[FINISHED])), _this$states);
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.buffer = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.filters = [];
|
|
|
+ /** gainNode: allows to control audio volume */
|
|
|
+
|
|
|
+ _this.gainNode = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.mergedPeaks = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.offlineAc = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.peaks = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.playbackRate = 1;
|
|
|
+ /** analyser: provides audio analysis information */
|
|
|
+
|
|
|
+ _this.analyser = null;
|
|
|
+ /** scriptNode: allows processing audio */
|
|
|
+
|
|
|
+ _this.scriptNode = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.source = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.splitPeaks = [];
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.state = null;
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ _this.explicitDuration = params.duration;
|
|
|
+ /**
|
|
|
+ * Boolean indicating if the backend was destroyed.
|
|
|
+ */
|
|
|
+
|
|
|
+ _this.destroyed = false;
|
|
|
+ return _this;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Initialise the backend, called in `wavesurfer.createBackend()`
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ _createClass(WebAudio, [{
|
|
|
+ key: "init",
|
|
|
+ value: function init() {
|
|
|
+ this.createVolumeNode();
|
|
|
+ this.createScriptNode();
|
|
|
+ this.createAnalyserNode();
|
|
|
+ this.setState(PAUSED);
|
|
|
+ this.setPlaybackRate(this.params.audioRate);
|
|
|
+ this.setLength(0);
|
|
|
+ }
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "disconnectFilters",
|
|
|
+ value: function disconnectFilters() {
|
|
|
+ if (this.filters) {
|
|
|
+ this.filters.forEach(function (filter) {
|
|
|
+ filter && filter.disconnect();
|
|
|
+ });
|
|
|
+ this.filters = null; // Reconnect direct path
|
|
|
+
|
|
|
+ this.analyser.connect(this.gainNode);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * @private
|
|
|
+ *
|
|
|
+ * @param {string} state The new state
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setState",
|
|
|
+ value: function setState(state) {
|
|
|
+ if (this.state !== this.states[state]) {
|
|
|
+ this.state = this.states[state];
|
|
|
+ this.state.init.call(this);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Unpacked `setFilters()`
|
|
|
+ *
|
|
|
+ * @param {...AudioNode} filters One or more filters to set
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setFilter",
|
|
|
+ value: function setFilter() {
|
|
|
+ for (var _len = arguments.length, filters = new Array(_len), _key = 0; _key < _len; _key++) {
|
|
|
+ filters[_key] = arguments[_key];
|
|
|
+ }
|
|
|
+
|
|
|
+ this.setFilters(filters);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Insert custom Web Audio nodes into the graph
|
|
|
+ *
|
|
|
+ * @param {AudioNode[]} filters Packed filters array
|
|
|
+ * @example
|
|
|
+ * const lowpass = wavesurfer.backend.ac.createBiquadFilter();
|
|
|
+ * wavesurfer.backend.setFilter(lowpass);
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setFilters",
|
|
|
+ value: function setFilters(filters) {
|
|
|
+ // Remove existing filters
|
|
|
+ this.disconnectFilters(); // Insert filters if filter array not empty
|
|
|
+
|
|
|
+ if (filters && filters.length) {
|
|
|
+ this.filters = filters; // Disconnect direct path before inserting filters
|
|
|
+
|
|
|
+ this.analyser.disconnect(); // Connect each filter in turn
|
|
|
+
|
|
|
+ filters.reduce(function (prev, curr) {
|
|
|
+ prev.connect(curr);
|
|
|
+ return curr;
|
|
|
+ }, this.analyser).connect(this.gainNode);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /** Create ScriptProcessorNode to process audio */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "createScriptNode",
|
|
|
+ value: function createScriptNode() {
|
|
|
+ if (this.params.audioScriptProcessor) {
|
|
|
+ this.scriptNode = this.params.audioScriptProcessor;
|
|
|
+ } else {
|
|
|
+ if (this.ac.createScriptProcessor) {
|
|
|
+ this.scriptNode = this.ac.createScriptProcessor(WebAudio.scriptBufferSize);
|
|
|
+ } else {
|
|
|
+ this.scriptNode = this.ac.createJavaScriptNode(WebAudio.scriptBufferSize);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ this.scriptNode.connect(this.ac.destination);
|
|
|
+ }
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "addOnAudioProcess",
|
|
|
+ value: function addOnAudioProcess() {
|
|
|
+ var _this2 = this;
|
|
|
+
|
|
|
+ this.scriptNode.onaudioprocess = function () {
|
|
|
+ var time = _this2.getCurrentTime();
|
|
|
+
|
|
|
+ if (time >= _this2.getDuration()) {
|
|
|
+ _this2.setState(FINISHED);
|
|
|
+
|
|
|
+ _this2.fireEvent('pause');
|
|
|
+ } else if (time >= _this2.scheduledPause) {
|
|
|
+ _this2.pause();
|
|
|
+ } else if (_this2.state === _this2.states[PLAYING]) {
|
|
|
+ _this2.fireEvent('audioprocess', time);
|
|
|
+ }
|
|
|
+ };
|
|
|
+ }
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "removeOnAudioProcess",
|
|
|
+ value: function removeOnAudioProcess() {
|
|
|
+ this.scriptNode.onaudioprocess = function () {};
|
|
|
+ }
|
|
|
+ /** Create analyser node to perform audio analysis */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "createAnalyserNode",
|
|
|
+ value: function createAnalyserNode() {
|
|
|
+ this.analyser = this.ac.createAnalyser();
|
|
|
+ this.analyser.connect(this.gainNode);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Create the gain node needed to control the playback volume.
|
|
|
+ *
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "createVolumeNode",
|
|
|
+ value: function createVolumeNode() {
|
|
|
+ // Create gain node using the AudioContext
|
|
|
+ if (this.ac.createGain) {
|
|
|
+ this.gainNode = this.ac.createGain();
|
|
|
+ } else {
|
|
|
+ this.gainNode = this.ac.createGainNode();
|
|
|
+ } // Add the gain node to the graph
|
|
|
+
|
|
|
+
|
|
|
+ this.gainNode.connect(this.ac.destination);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the sink id for the media player
|
|
|
+ *
|
|
|
+ * @param {string} deviceId String value representing audio device id.
|
|
|
+ * @returns {Promise} A Promise that resolves to `undefined` when there
|
|
|
+ * are no errors.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setSinkId",
|
|
|
+ value: function setSinkId(deviceId) {
|
|
|
+ if (deviceId) {
|
|
|
+ /**
|
|
|
+ * The webaudio API doesn't currently support setting the device
|
|
|
+ * output. Here we create an HTMLAudioElement, connect the
|
|
|
+ * webaudio stream to that element and setSinkId there.
|
|
|
+ */
|
|
|
+ var audio = new window.Audio();
|
|
|
+
|
|
|
+ if (!audio.setSinkId) {
|
|
|
+ return Promise.reject(new Error('setSinkId is not supported in your browser'));
|
|
|
+ }
|
|
|
+
|
|
|
+ audio.autoplay = true;
|
|
|
+ var dest = this.ac.createMediaStreamDestination();
|
|
|
+ this.gainNode.disconnect();
|
|
|
+ this.gainNode.connect(dest);
|
|
|
+ audio.srcObject = dest.stream;
|
|
|
+ return audio.setSinkId(deviceId);
|
|
|
+ } else {
|
|
|
+ return Promise.reject(new Error('Invalid deviceId: ' + deviceId));
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the audio volume
|
|
|
+ *
|
|
|
+ * @param {number} value A floating point value between 0 and 1.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setVolume",
|
|
|
+ value: function setVolume(value) {
|
|
|
+ this.gainNode.gain.setValueAtTime(value, this.ac.currentTime);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the current volume
|
|
|
+ *
|
|
|
+ * @return {number} value A floating point value between 0 and 1.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getVolume",
|
|
|
+ value: function getVolume() {
|
|
|
+ return this.gainNode.gain.value;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Decode an array buffer and pass data to a callback
|
|
|
+ *
|
|
|
+ * @private
|
|
|
+ * @param {ArrayBuffer} arraybuffer The array buffer to decode
|
|
|
+ * @param {function} callback The function to call on complete.
|
|
|
+ * @param {function} errback The function to call on error.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "decodeArrayBuffer",
|
|
|
+ value: function decodeArrayBuffer(arraybuffer, callback, errback) {
|
|
|
+ if (!this.offlineAc) {
|
|
|
+ this.offlineAc = this.getOfflineAudioContext(this.ac && this.ac.sampleRate ? this.ac.sampleRate : 44100);
|
|
|
+ }
|
|
|
+
|
|
|
+ this.offlineAc.decodeAudioData(arraybuffer, function (data) {
|
|
|
+ return callback(data);
|
|
|
+ }, errback);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set pre-decoded peaks
|
|
|
+ *
|
|
|
+ * @param {number[]|Number.<Array[]>} peaks Peaks data
|
|
|
+ * @param {?number} duration Explicit duration
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setPeaks",
|
|
|
+ value: function setPeaks(peaks, duration) {
|
|
|
+ if (duration != null) {
|
|
|
+ this.explicitDuration = duration;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.peaks = peaks;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the rendered length (different from the length of the audio)
|
|
|
+ *
|
|
|
+ * @param {number} length The rendered length
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setLength",
|
|
|
+ value: function setLength(length) {
|
|
|
+ // No resize, we can preserve the cached peaks.
|
|
|
+ if (this.mergedPeaks && length == 2 * this.mergedPeaks.length - 1 + 2) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.splitPeaks = [];
|
|
|
+ this.mergedPeaks = []; // Set the last element of the sparse array so the peak arrays are
|
|
|
+ // appropriately sized for other calculations.
|
|
|
+
|
|
|
+ var channels = this.buffer ? this.buffer.numberOfChannels : 1;
|
|
|
+ var c;
|
|
|
+
|
|
|
+ for (c = 0; c < channels; c++) {
|
|
|
+ this.splitPeaks[c] = [];
|
|
|
+ this.splitPeaks[c][2 * (length - 1)] = 0;
|
|
|
+ this.splitPeaks[c][2 * (length - 1) + 1] = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.mergedPeaks[2 * (length - 1)] = 0;
|
|
|
+ this.mergedPeaks[2 * (length - 1) + 1] = 0;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Compute the max and min value of the waveform when broken into <length> subranges.
|
|
|
+ *
|
|
|
+ * @param {number} length How many subranges to break the waveform into.
|
|
|
+ * @param {number} first First sample in the required range.
|
|
|
+ * @param {number} last Last sample in the required range.
|
|
|
+ * @return {number[]|Number.<Array[]>} Array of 2*<length> peaks or array of arrays of
|
|
|
+ * peaks consisting of (max, min) values for each subrange.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getPeaks",
|
|
|
+ value: function getPeaks(length, first, last) {
|
|
|
+ if (this.peaks) {
|
|
|
+ return this.peaks;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!this.buffer) {
|
|
|
+ return [];
|
|
|
+ }
|
|
|
+
|
|
|
+ first = first || 0;
|
|
|
+ last = last || length - 1;
|
|
|
+ this.setLength(length);
|
|
|
+
|
|
|
+ if (!this.buffer) {
|
|
|
+ return this.params.splitChannels ? this.splitPeaks : this.mergedPeaks;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * The following snippet fixes a buffering data issue on the Safari
|
|
|
+ * browser which returned undefined It creates the missing buffer based
|
|
|
+ * on 1 channel, 4096 samples and the sampleRate from the current
|
|
|
+ * webaudio context 4096 samples seemed to be the best fit for rendering
|
|
|
+ * will review this code once a stable version of Safari TP is out
|
|
|
+ */
|
|
|
+
|
|
|
+
|
|
|
+ if (!this.buffer.length) {
|
|
|
+ var newBuffer = this.createBuffer(1, 4096, this.sampleRate);
|
|
|
+ this.buffer = newBuffer.buffer;
|
|
|
+ }
|
|
|
+
|
|
|
+ var sampleSize = this.buffer.length / length;
|
|
|
+ var sampleStep = ~~(sampleSize / 10) || 1;
|
|
|
+ var channels = this.buffer.numberOfChannels;
|
|
|
+ var c;
|
|
|
+
|
|
|
+ for (c = 0; c < channels; c++) {
|
|
|
+ var peaks = this.splitPeaks[c];
|
|
|
+ var chan = this.buffer.getChannelData(c);
|
|
|
+ var i = void 0;
|
|
|
+
|
|
|
+ for (i = first; i <= last; i++) {
|
|
|
+ var start = ~~(i * sampleSize);
|
|
|
+ var end = ~~(start + sampleSize);
|
|
|
+ /**
|
|
|
+ * Initialize the max and min to the first sample of this
|
|
|
+ * subrange, so that even if the samples are entirely
|
|
|
+ * on one side of zero, we still return the true max and
|
|
|
+ * min values in the subrange.
|
|
|
+ */
|
|
|
+
|
|
|
+ var min = chan[start];
|
|
|
+ var max = min;
|
|
|
+ var j = void 0;
|
|
|
+
|
|
|
+ for (j = start; j < end; j += sampleStep) {
|
|
|
+ var value = chan[j];
|
|
|
+
|
|
|
+ if (value > max) {
|
|
|
+ max = value;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (value < min) {
|
|
|
+ min = value;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ peaks[2 * i] = max;
|
|
|
+ peaks[2 * i + 1] = min;
|
|
|
+
|
|
|
+ if (c == 0 || max > this.mergedPeaks[2 * i]) {
|
|
|
+ this.mergedPeaks[2 * i] = max;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (c == 0 || min < this.mergedPeaks[2 * i + 1]) {
|
|
|
+ this.mergedPeaks[2 * i + 1] = min;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return this.params.splitChannels ? this.splitPeaks : this.mergedPeaks;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the position from 0 to 1
|
|
|
+ *
|
|
|
+ * @return {number} Position
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getPlayedPercents",
|
|
|
+ value: function getPlayedPercents() {
|
|
|
+ return this.state.getPlayedPercents.call(this);
|
|
|
+ }
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "disconnectSource",
|
|
|
+ value: function disconnectSource() {
|
|
|
+ if (this.source) {
|
|
|
+ this.source.disconnect();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Destroy all references with WebAudio, disconnecting audio nodes and closing Audio Context
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "destroyWebAudio",
|
|
|
+ value: function destroyWebAudio() {
|
|
|
+ this.disconnectFilters();
|
|
|
+ this.disconnectSource();
|
|
|
+ this.gainNode.disconnect();
|
|
|
+ this.scriptNode.disconnect();
|
|
|
+ this.analyser.disconnect(); // close the audioContext if closeAudioContext option is set to true
|
|
|
+
|
|
|
+ if (this.params.closeAudioContext) {
|
|
|
+ // check if browser supports AudioContext.close()
|
|
|
+ if (typeof this.ac.close === 'function' && this.ac.state != 'closed') {
|
|
|
+ this.ac.close();
|
|
|
+ } // clear the reference to the audiocontext
|
|
|
+
|
|
|
+
|
|
|
+ this.ac = null; // clear the actual audiocontext, either passed as param or the
|
|
|
+ // global singleton
|
|
|
+
|
|
|
+ if (!this.params.audioContext) {
|
|
|
+ window.WaveSurferAudioContext = null;
|
|
|
+ } else {
|
|
|
+ this.params.audioContext = null;
|
|
|
+ } // clear the offlineAudioContext
|
|
|
+
|
|
|
+
|
|
|
+ window.WaveSurferOfflineAudioContext = null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * This is called when wavesurfer is destroyed
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "destroy",
|
|
|
+ value: function destroy() {
|
|
|
+ if (!this.isPaused()) {
|
|
|
+ this.pause();
|
|
|
+ }
|
|
|
+
|
|
|
+ this.unAll();
|
|
|
+ this.buffer = null;
|
|
|
+ this.destroyed = true;
|
|
|
+ this.destroyWebAudio();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Loaded a decoded audio buffer
|
|
|
+ *
|
|
|
+ * @param {Object} buffer Decoded audio buffer to load
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "load",
|
|
|
+ value: function load(buffer) {
|
|
|
+ this.startPosition = 0;
|
|
|
+ this.lastPlay = this.ac.currentTime;
|
|
|
+ this.buffer = buffer;
|
|
|
+ this.createSource();
|
|
|
+ }
|
|
|
+ /** @private */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "createSource",
|
|
|
+ value: function createSource() {
|
|
|
+ this.disconnectSource();
|
|
|
+ this.source = this.ac.createBufferSource(); // adjust for old browsers
|
|
|
+
|
|
|
+ this.source.start = this.source.start || this.source.noteGrainOn;
|
|
|
+ this.source.stop = this.source.stop || this.source.noteOff;
|
|
|
+ this.source.playbackRate.setValueAtTime(this.playbackRate, this.ac.currentTime);
|
|
|
+ this.source.buffer = this.buffer;
|
|
|
+ this.source.connect(this.analyser);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * @private
|
|
|
+ *
|
|
|
+ * some browsers require an explicit call to #resume before they will play back audio
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "resumeAudioContext",
|
|
|
+ value: function resumeAudioContext() {
|
|
|
+ if (this.ac.state == 'suspended') {
|
|
|
+ this.ac.resume && this.ac.resume();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Used by `wavesurfer.isPlaying()` and `wavesurfer.playPause()`
|
|
|
+ *
|
|
|
+ * @return {boolean} Whether or not this backend is currently paused
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "isPaused",
|
|
|
+ value: function isPaused() {
|
|
|
+ return this.state !== this.states[PLAYING];
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Used by `wavesurfer.getDuration()`
|
|
|
+ *
|
|
|
+ * @return {number} Duration of loaded buffer
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getDuration",
|
|
|
+ value: function getDuration() {
|
|
|
+ if (this.explicitDuration) {
|
|
|
+ return this.explicitDuration;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!this.buffer) {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ return this.buffer.duration;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Used by `wavesurfer.seekTo()`
|
|
|
+ *
|
|
|
+ * @param {number} start Position to start at in seconds
|
|
|
+ * @param {number} end Position to end at in seconds
|
|
|
+ * @return {{start: number, end: number}} Object containing start and end
|
|
|
+ * positions
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "seekTo",
|
|
|
+ value: function seekTo(start, end) {
|
|
|
+ if (!this.buffer) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.scheduledPause = null;
|
|
|
+
|
|
|
+ if (start == null) {
|
|
|
+ start = this.getCurrentTime();
|
|
|
+
|
|
|
+ if (start >= this.getDuration()) {
|
|
|
+ start = 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (end == null) {
|
|
|
+ end = this.getDuration();
|
|
|
+ }
|
|
|
+
|
|
|
+ this.startPosition = start;
|
|
|
+ this.lastPlay = this.ac.currentTime;
|
|
|
+
|
|
|
+ if (this.state === this.states[FINISHED]) {
|
|
|
+ this.setState(PAUSED);
|
|
|
+ }
|
|
|
+
|
|
|
+ return {
|
|
|
+ start: start,
|
|
|
+ end: end
|
|
|
+ };
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the playback position in seconds
|
|
|
+ *
|
|
|
+ * @return {number} The playback position in seconds
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getPlayedTime",
|
|
|
+ value: function getPlayedTime() {
|
|
|
+ return (this.ac.currentTime - this.lastPlay) * this.playbackRate;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Plays the loaded audio region.
|
|
|
+ *
|
|
|
+ * @param {number} start Start offset in seconds, relative to the beginning
|
|
|
+ * of a clip.
|
|
|
+ * @param {number} end When to stop relative to the beginning of a clip.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "play",
|
|
|
+ value: function play(start, end) {
|
|
|
+ if (!this.buffer) {
|
|
|
+ return;
|
|
|
+ } // need to re-create source on each playback
|
|
|
+
|
|
|
+
|
|
|
+ this.createSource();
|
|
|
+ var adjustedTime = this.seekTo(start, end);
|
|
|
+ start = adjustedTime.start;
|
|
|
+ end = adjustedTime.end;
|
|
|
+ this.scheduledPause = end;
|
|
|
+ this.source.start(0, start);
|
|
|
+ this.resumeAudioContext();
|
|
|
+ this.setState(PLAYING);
|
|
|
+ this.fireEvent('play');
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Pauses the loaded audio.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "pause",
|
|
|
+ value: function pause() {
|
|
|
+ this.scheduledPause = null;
|
|
|
+ this.startPosition += this.getPlayedTime();
|
|
|
+ this.source && this.source.stop(0);
|
|
|
+ this.setState(PAUSED);
|
|
|
+ this.fireEvent('pause');
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Returns the current time in seconds relative to the audio-clip's
|
|
|
+ * duration.
|
|
|
+ *
|
|
|
+ * @return {number} The current time in seconds
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getCurrentTime",
|
|
|
+ value: function getCurrentTime() {
|
|
|
+ return this.state.getCurrentTime.call(this);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Returns the current playback rate. (0=no playback, 1=normal playback)
|
|
|
+ *
|
|
|
+ * @return {number} The current playback rate
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getPlaybackRate",
|
|
|
+ value: function getPlaybackRate() {
|
|
|
+ return this.playbackRate;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the audio source playback rate.
|
|
|
+ *
|
|
|
+ * @param {number} value The playback rate to use
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setPlaybackRate",
|
|
|
+ value: function setPlaybackRate(value) {
|
|
|
+ value = value || 1;
|
|
|
+
|
|
|
+ if (this.isPaused()) {
|
|
|
+ this.playbackRate = value;
|
|
|
+ } else {
|
|
|
+ this.pause();
|
|
|
+ this.playbackRate = value;
|
|
|
+ this.play();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set a point in seconds for playback to stop at.
|
|
|
+ *
|
|
|
+ * @param {number} end Position to end at
|
|
|
+ * @version 3.3.0
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setPlayEnd",
|
|
|
+ value: function setPlayEnd(end) {
|
|
|
+ this.scheduledPause = end;
|
|
|
+ }
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return WebAudio;
|
|
|
+}(util.Observer);
|
|
|
+
|
|
|
+exports.default = WebAudio;
|
|
|
+WebAudio.scriptBufferSize = 256;
|
|
|
+module.exports = exports.default;
|
|
|
+
|
|
|
+/***/ })
|
|
|
+
|
|
|
+/******/ });
|
|
|
+});
|
|
|
+//# sourceMappingURL=wavesurfer.js.map
|
mjhwang