wavesurfer.js
Version:
Interactive navigable audio visualization using Web Audio and Canvas
244 lines (221 loc) • 9.04 kB
JavaScript
/*!
* wavesurfer.js mediasession plugin 4.3.0 (2020-12-13)
* https://wavesurfer-js.org
* @license BSD-3-Clause
*/
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory();
else if(typeof define === 'function' && define.amd)
define("mediasession", [], factory);
else if(typeof exports === 'object')
exports["mediasession"] = factory();
else
root["WaveSurfer"] = root["WaveSurfer"] || {}, root["WaveSurfer"]["mediasession"] = factory();
})(this, function() {
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/******/ ({
/***/ "./src/plugin/mediasession/index.js":
/*!******************************************!*\
!*** ./src/plugin/mediasession/index.js ***!
\******************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
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; }
/*global MediaMetadata*/
/**
* @typedef {Object} MediaSessionPluginParams
* @property {MediaMetadata} metadata A MediaMetadata object: a representation
* of the metadata associated with a MediaSession that can be used by user agents
* to provide a customized user interface.
* @property {?boolean} deferInit Set to true to manually call
* `initPlugin('mediasession')`
*/
/**
* Visualize MediaSession information for a wavesurfer instance.
*
* @implements {PluginClass}
* @extends {Observer}
* @example
* // es6
* import MediaSessionPlugin from 'wavesurfer.mediasession.js';
*
* // commonjs
* var MediaSessionPlugin = require('wavesurfer.mediasession.js');
*
* // if you are using <script> tags
* var MediaSessionPlugin = window.WaveSurfer.mediasession;
*
* // ... initialising wavesurfer with the plugin
* var wavesurfer = WaveSurfer.create({
* // wavesurfer options ...
* plugins: [
* MediaSessionPlugin.create({
* // plugin options ...
* })
* ]
* });
*/
var MediaSessionPlugin = /*#__PURE__*/function () {
_createClass(MediaSessionPlugin, null, [{
key: "create",
/**
* MediaSession plugin definition factory
*
* This function must be used to create a plugin definition which can be
* used by wavesurfer to correctly instantiate the plugin.
*
* @param {MediaSessionPluginParams} params parameters use to initialise the plugin
* @return {PluginDefinition} an object representing the plugin
*/
value: function create(params) {
return {
name: 'mediasession',
deferInit: params && params.deferInit ? params.deferInit : false,
params: params,
instance: MediaSessionPlugin
};
}
}]);
function MediaSessionPlugin(params, ws) {
var _this = this;
_classCallCheck(this, MediaSessionPlugin);
this.params = params;
this.wavesurfer = ws;
if ('mediaSession' in navigator) {
// update metadata
this.metadata = this.params.metadata;
this.update(); // update metadata when playback starts
this.wavesurfer.on('play', function () {
_this.update();
}); // set playback action handlers
navigator.mediaSession.setActionHandler('play', function () {
_this.wavesurfer.play();
});
navigator.mediaSession.setActionHandler('pause', function () {
_this.wavesurfer.playPause();
});
navigator.mediaSession.setActionHandler('seekbackward', function () {
_this.wavesurfer.skipBackward();
});
navigator.mediaSession.setActionHandler('seekforward', function () {
_this.wavesurfer.skipForward();
});
}
}
_createClass(MediaSessionPlugin, [{
key: "init",
value: function init() {}
}, {
key: "destroy",
value: function destroy() {}
}, {
key: "update",
value: function update() {
if ((typeof MediaMetadata === "undefined" ? "undefined" : _typeof(MediaMetadata)) === (typeof Function === "undefined" ? "undefined" : _typeof(Function))) {
// set metadata
navigator.mediaSession.metadata = new MediaMetadata(this.metadata);
}
}
}]);
return MediaSessionPlugin;
}();
exports.default = MediaSessionPlugin;
module.exports = exports.default;
/***/ })
/******/ });
});
//# sourceMappingURL=wavesurfer.mediasession.js.map