wavesurfer.js
Version:
Interactive navigable audio visualization using Web Audio and Canvas
322 lines (284 loc) • 10.2 kB
JavaScript
/*!
* wavesurfer.js 2.0.5 (Sun Mar 04 2018 20:09:58 GMT+0100 (CET))
* https://github.com/katspaugh/wavesurfer.js
* @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("cursor", [], factory);
else if(typeof exports === 'object')
exports["cursor"] = factory();
else
root["WaveSurfer"] = root["WaveSurfer"] || {}, root["WaveSurfer"]["cursor"] = factory();
})(typeof self !== 'undefined' ? self : this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId]) {
/******/ return installedModules[moduleId].exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ i: moduleId,
/******/ l: false,
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
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/******/
/******/ // Return the exports of the module
/******/ return module.exports;
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/******/
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/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/
/******/ // define getter function for harmony exports
/******/ __webpack_require__.d = function(exports, name, getter) {
/******/ if(!__webpack_require__.o(exports, name)) {
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/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __webpack_require__.n = function(module) {
/******/ var getter = module && module.__esModule ?
/******/ function getDefault() { return module['default']; } :
/******/ function getModuleExports() { return module; };
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/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
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/******/ __webpack_require__.p = "localhost:8080/dist/plugin/";
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/************************************************************************/
/******/ ({
/***/ 4:
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = 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); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
* @typedef {Object} CursorPluginParams
* @property {?boolean} deferInit Set to true to stop auto init in `addPlugin()`
* @property {boolean} hideOnBlur=true Hide the cursor when the mouse leaves the
* waveform
* @property {string} width='1px' The width of the cursor
* @property {string} color='black' The color of the cursor
* @property {string} opacity='0.25' The opacity of the cursor
* @property {string} style='solid' The border style of the cursor
* @property {number} zIndex=3 The z-index of the cursor element
* @property {object} customStyle An object with custom styles which are applied
* to the cursor element
*/
/**
* Displays a thin line at the position of the cursor on the waveform.
*
* @implements {PluginClass}
* @extends {Observer}
* @example
* // es6
* import CursorPlugin from 'wavesurfer.cursor.js';
*
* // commonjs
* var CursorPlugin = require('wavesurfer.cursor.js');
*
* // if you are using <script> tags
* var CursorPlugin = window.WaveSurfer.cursor;
*
* // ... initialising wavesurfer with the plugin
* var wavesurfer = WaveSurfer.create({
* // wavesurfer options ...
* plugins: [
* CursorPlugin.create({
* // plugin options ...
* })
* ]
* });
*/
var CursorPlugin = function () {
_createClass(CursorPlugin, null, [{
key: 'create',
/**
* Cursor 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 {CursorPluginParams} params parameters use to initialise the
* plugin
* @return {PluginDefinition} an object representing the plugin
*/
value: function create(params) {
return {
name: 'cursor',
deferInit: params && params.deferInit ? params.deferInit : false,
params: params,
staticProps: {
enableCursor: function enableCursor() {
console.warn('Deprecated enableCursor!');
this.initPlugins('cursor');
}
},
instance: CursorPlugin
};
}
/**
* @type {CursorPluginParams}
*/
/** @private */
/** @private */
/** @private */
}]);
/**
* Construct the plugin class. You probably want to use CursorPlugin.create
* instead.
*
* @param {CursorPluginParams} params
* @param {object} ws
*/
function CursorPlugin(params, ws) {
var _this = this;
_classCallCheck(this, CursorPlugin);
this.defaultParams = {
hideOnBlur: true,
width: '1px',
color: 'black',
opacity: '0.25',
style: 'solid',
zIndex: 4,
customStyle: {}
};
this._onMousemove = function (e) {
var bbox = _this.wavesurfer.container.getBoundingClientRect();
_this.updateCursorPosition(e.clientX - bbox.left);
};
this._onMouseenter = function () {
return _this.showCursor();
};
this._onMouseleave = function () {
return _this.hideCursor();
};
/** @private */
this.wavesurfer = ws;
/** @private */
this.style = ws.util.style;
/**
* The cursor html element
*
* @type {?HTMLElement}
*/
this.cursor = null;
/** @private */
this.params = ws.util.extend({}, this.defaultParams, params);
}
/**
* Initialise the plugin (used by the Plugin API)
*/
_createClass(CursorPlugin, [{
key: 'init',
value: function init() {
var wrapper = this.wavesurfer.container;
this.cursor = wrapper.appendChild(this.style(document.createElement('cursor'), this.wavesurfer.util.extend({
position: 'absolute',
zIndex: this.params.zIndex,
left: 0,
top: 0,
bottom: 0,
width: '0',
display: 'block',
borderRightStyle: this.params.style,
borderRightWidth: this.params.width,
borderRightColor: this.params.color,
opacity: this.params.opacity,
pointerEvents: 'none'
}, this.params.customStyle)));
wrapper.addEventListener('mousemove', this._onMousemove);
if (this.params.hideOnBlur) {
wrapper.addEventListener('mouseenter', this._onMouseenter);
wrapper.addEventListener('mouseleave', this._onMouseleave);
}
}
/**
* Destroy the plugin (used by the Plugin API)
*/
}, {
key: 'destroy',
value: function destroy() {
this.cursor.parentNode.removeChild(this.cursor);
this.wrapper.removeEventListener('mousemove', this._onMousemove);
if (this.params.hideOnBlur) {
this.wrapper.removeEventListener('mouseenter', this._onMouseenter);
this.wrapper.removeEventListener('mouseleave', this._onMouseleave);
}
}
/**
* Update the cursor position
*
* @param {number} pos The x offset of the cursor in pixels
*/
}, {
key: 'updateCursorPosition',
value: function updateCursorPosition(pos) {
this.style(this.cursor, {
left: pos + 'px'
});
}
/**
* Show the cursor
*/
}, {
key: 'showCursor',
value: function showCursor() {
this.style(this.cursor, {
display: 'block'
});
}
/**
* Hide the cursor
*/
}, {
key: 'hideCursor',
value: function hideCursor() {
this.style(this.cursor, {
display: 'none'
});
}
}]);
return CursorPlugin;
}();
exports.default = CursorPlugin;
module.exports = exports['default'];
/***/ })
/******/ });
});
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