react-wavesurfer
Version:
React component wrapper for wavesurfer.js
819 lines (678 loc) • 29.2 kB
JavaScript
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory(require("react"), require("wavesurfer.js"));
else if(typeof define === 'function' && define.amd)
define(["react", "wavesurfer"], factory);
else if(typeof exports === 'object')
exports["plugins/regions"] = factory(require("react"), require("wavesurfer.js"));
else
root["Wavesurfer"] = root["Wavesurfer"] || {}, root["Wavesurfer"]["plugins/regions"] = factory(root["React"], root["WaveSurfer"]);
})(this, function(__WEBPACK_EXTERNAL_MODULE_1__, __WEBPACK_EXTERNAL_MODULE_3__) {
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] = {
/******/ exports: {},
/******/ id: moduleId,
/******/ loaded: false
/******/ };
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/ // Flag the module as loaded
/******/ module.loaded = true;
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "";
/******/ // Load entry module and return exports
/******/ return __webpack_require__(0);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ 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; }; }();
var _react = __webpack_require__(1);
var _react2 = _interopRequireDefault(_react);
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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
__webpack_require__(4);
var REGIONS_EVENTS = ['region-in', 'region-out', 'region-mouseenter', 'region-mouseleave', 'region-click', 'region-dblclick', 'region-updated', 'region-update-end', 'region-removed', 'region-play'];
var REGION_EVENTS = ['in', 'out', 'remove', 'update', 'click', 'dbclick', 'over', 'leave'];
/**
* @description Capitalise the first letter of a string
*/
function capitaliseFirstLetter(string) {
return string.split('-').map(function (part) {
return part.charAt(0).toUpperCase() + part.slice(1);
}).join('');
}
var Regions = function (_Component) {
_inherits(Regions, _Component);
function Regions(props) {
_classCallCheck(this, Regions);
// this is so that jscs does not force us to go functional
var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(Regions).call(this, props));
_this.state = {};
return _this;
}
_createClass(Regions, [{
key: 'componentDidMount',
value: function componentDidMount() {
if (this.props.isReady) {
this._init.call(this);
}
this.props.wavesurfer.on('ready', this._init.bind(this));
}
}, {
key: 'componentWillReceiveProps',
value: function componentWillReceiveProps(nextProps) {
// only update if the wavesurfer instance has been ready
if (!this.props.isReady) {
return;
}
// cache reference to old regions
var oldRegions = Object.create(this.props.wavesurfer.regions.list);
var newRegionId = void 0;
var oldRegionId = void 0;
for (newRegionId in nextProps.regions) {
if (nextProps.regions.hasOwnProperty(newRegionId)) {
var newRegion = nextProps.regions[newRegionId];
// remove from oldRegions
delete oldRegions[newRegionId];
// new regions
if (!this.props.wavesurfer.regions.list[newRegionId]) {
this._hookUpRegionEvents(nextProps.wavesurfer.addRegion(newRegion));
// update regions
} else if (oldRegions[newRegionId] && (oldRegions[newRegionId].start !== newRegion.start || oldRegions[newRegionId].end !== newRegion.end)) {
nextProps.wavesurfer.regions.list[newRegionId].update({
start: newRegion.start,
end: newRegion.end
});
}
}
}
// remove any old regions
for (oldRegionId in oldRegions) {
if (oldRegions.hasOwnProperty(oldRegionId)) {
nextProps.wavesurfer.regions.list[oldRegionId].remove();
}
}
}
}, {
key: 'shouldComponentUpdate',
value: function shouldComponentUpdate() {
return false;
}
}, {
key: 'componentWillUnmount',
value: function componentWillUnmount() {
var _this2 = this;
REGION_EVENTS.forEach(function (e) {
_this2.props.wavesurfer.un(e);
});
}
}, {
key: '_init',
value: function _init() {
var _this3 = this;
var _props = this.props;
var wavesurfer = _props.wavesurfer;
var regions = _props.regions;
var newRegionId = void 0;
REGIONS_EVENTS.forEach(function (e) {
var propCallback = _this3.props['on' + capitaliseFirstLetter(e)];
if (!propCallback) return;
wavesurfer.on(e, function () {
for (var _len = arguments.length, originalArgs = Array(_len), _key = 0; _key < _len; _key++) {
originalArgs[_key] = arguments[_key];
}
propCallback({
wavesurfer: wavesurfer,
originalArgs: originalArgs
});
});
});
// add regions and hook up callbacks to region objects
for (newRegionId in regions) {
if (regions.hasOwnProperty(newRegionId)) {
this._hookUpRegionEvents(wavesurfer.addRegion(regions[newRegionId]));
}
}
}
}, {
key: '_hookUpRegionEvents',
value: function _hookUpRegionEvents(region) {
var _this4 = this;
REGION_EVENTS.forEach(function (e) {
var propCallback = _this4.props['onSingleRegion' + capitaliseFirstLetter(e)];
var wavesurfer = _this4.props.wavesurfer;
if (propCallback) {
region.on(e, function () {
for (var _len2 = arguments.length, originalArgs = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
originalArgs[_key2] = arguments[_key2];
}
propCallback({
wavesurfer: wavesurfer,
originalArgs: originalArgs,
region: region
});
});
}
});
region.on('remove', function () {
REGION_EVENTS.forEach(function (e) {
region.un(e);
});
});
}
}, {
key: 'render',
value: function render() {
return _react2.default.createElement('div', null);
}
}]);
return Regions;
}(_react.Component);
Regions.propTypes = {
isReady: _react.PropTypes.bool,
regions: _react.PropTypes.object,
wavesurfer: _react.PropTypes.object
};
Regions.defaultProps = {
regions: []
};
exports.default = Regions;
/***/ },
/* 1 */
/***/ function(module, exports) {
module.exports = __WEBPACK_EXTERNAL_MODULE_1__;
/***/ },
/* 2 */,
/* 3 */
/***/ function(module, exports) {
module.exports = __WEBPACK_EXTERNAL_MODULE_3__;
/***/ },
/* 4 */
/***/ function(module, exports, __webpack_require__) {
/*** IMPORTS FROM imports-loader ***/
var define = false;
var exports = false;
'use strict';
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };
(function (root, factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module unless amdModuleId is set
define(["./../wavesurfer"], function (a0) {
return factory(a0);
});
} else if ((typeof exports === 'undefined' ? 'undefined' : _typeof(exports)) === 'object') {
// Node. Does not work with strict CommonJS, but
// only CommonJS-like environments that support module.exports,
// like Node.
module.exports = factory(__webpack_require__(3));
} else {
factory(WaveSurfer);
}
})(undefined, function (WaveSurfer) {
'use strict';
/* Regions manager */
WaveSurfer.Regions = {
init: function init(wavesurfer) {
this.wavesurfer = wavesurfer;
this.wrapper = this.wavesurfer.drawer.wrapper;
/* Id-based hash of regions. */
this.list = {};
},
/* Add a region. */
add: function add(params) {
var region = Object.create(WaveSurfer.Region);
region.init(params, this.wavesurfer);
this.list[region.id] = region;
region.on('remove', function () {
delete this.list[region.id];
}.bind(this));
return region;
},
/* Remove all regions. */
clear: function clear() {
Object.keys(this.list).forEach(function (id) {
this.list[id].remove();
}, this);
},
enableDragSelection: function enableDragSelection(params) {
var my = this;
var drag;
var start;
var region;
var touchId;
var slop = params.slop || 2;
var pxMove = 0;
var eventDown = function eventDown(e) {
if (e.touches && e.touches.length > 1) {
return;
}
touchId = e.targetTouches ? e.targetTouches[0].identifier : null;
drag = true;
start = my.wavesurfer.drawer.handleEvent(e, true);
region = null;
};
this.wrapper.addEventListener('mousedown', eventDown);
this.wrapper.addEventListener('touchstart', eventDown);
this.on('disable-drag-selection', function () {
my.wrapper.removeEventListener('touchstart', eventDown);
my.wrapper.removeEventListener('mousedown', eventDown);
});
var eventUp = function eventUp(e) {
if (e.touches && e.touches.length > 1) {
return;
}
drag = false;
pxMove = 0;
if (region) {
region.fireEvent('update-end', e);
my.wavesurfer.fireEvent('region-update-end', region, e);
}
region = null;
};
this.wrapper.addEventListener('mouseup', eventUp);
this.wrapper.addEventListener('touchend', eventUp);
this.on('disable-drag-selection', function () {
my.wrapper.removeEventListener('touchend', eventUp);
my.wrapper.removeEventListener('mouseup', eventUp);
});
var eventMove = function eventMove(e) {
if (!drag) {
return;
}
if (++pxMove <= slop) {
return;
}
if (e.touches && e.touches.length > 1) {
return;
}
if (e.targetTouches && e.targetTouches[0].identifier != touchId) {
return;
}
if (!region) {
region = my.add(params || {});
}
var duration = my.wavesurfer.getDuration();
var end = my.wavesurfer.drawer.handleEvent(e);
region.update({
start: Math.min(end * duration, start * duration),
end: Math.max(end * duration, start * duration)
});
};
this.wrapper.addEventListener('mousemove', eventMove);
this.wrapper.addEventListener('touchmove', eventMove);
this.on('disable-drag-selection', function () {
my.wrapper.removeEventListener('touchmove', eventMove);
my.wrapper.removeEventListener('mousemove', eventMove);
});
},
disableDragSelection: function disableDragSelection() {
this.fireEvent('disable-drag-selection');
}
};
WaveSurfer.util.extend(WaveSurfer.Regions, WaveSurfer.Observer);
WaveSurfer.Region = {
/* Helper function to assign CSS styles. */
style: WaveSurfer.Drawer.style,
init: function init(params, wavesurfer) {
this.wavesurfer = wavesurfer;
this.wrapper = wavesurfer.drawer.wrapper;
this.id = params.id == null ? WaveSurfer.util.getId() : params.id;
this.start = Number(params.start) || 0;
this.end = params.end == null ?
// small marker-like region
this.start + 4 / this.wrapper.scrollWidth * this.wavesurfer.getDuration() : Number(params.end);
this.resize = params.resize === undefined ? true : Boolean(params.resize);
this.drag = params.drag === undefined ? true : Boolean(params.drag);
this.loop = Boolean(params.loop);
this.color = params.color || 'rgba(0, 0, 0, 0.1)';
this.data = params.data || {};
this.attributes = params.attributes || {};
this.maxLength = params.maxLength;
this.minLength = params.minLength;
this.bindInOut();
this.render();
this.wavesurfer.on('zoom', this.updateRender.bind(this));
this.wavesurfer.fireEvent('region-created', this);
},
/* Update region params. */
update: function update(params) {
if (null != params.start) {
this.start = Number(params.start);
}
if (null != params.end) {
this.end = Number(params.end);
}
if (null != params.loop) {
this.loop = Boolean(params.loop);
}
if (null != params.color) {
this.color = params.color;
}
if (null != params.data) {
this.data = params.data;
}
if (null != params.resize) {
this.resize = Boolean(params.resize);
}
if (null != params.drag) {
this.drag = Boolean(params.drag);
}
if (null != params.maxLength) {
this.maxLength = Number(params.maxLength);
}
if (null != params.minLength) {
this.minLength = Number(params.minLength);
}
if (null != params.attributes) {
this.attributes = params.attributes;
}
this.updateRender();
this.fireEvent('update');
this.wavesurfer.fireEvent('region-updated', this);
},
/* Remove a single region. */
remove: function remove() {
if (this.element) {
this.wrapper.removeChild(this.element);
this.element = null;
this.fireEvent('remove');
this.wavesurfer.un('zoom', this.updateRender.bind(this));
this.wavesurfer.fireEvent('region-removed', this);
}
},
/* Play the audio region. */
play: function play() {
this.wavesurfer.play(this.start, this.end);
this.fireEvent('play');
this.wavesurfer.fireEvent('region-play', this);
},
/* Play the region in loop. */
playLoop: function playLoop() {
this.play();
this.once('out', this.playLoop.bind(this));
},
/* Render a region as a DOM element. */
render: function render() {
var regionEl = document.createElement('region');
regionEl.className = 'wavesurfer-region';
regionEl.title = this.formatTime(this.start, this.end);
regionEl.setAttribute('data-id', this.id);
for (var attrname in this.attributes) {
regionEl.setAttribute('data-region-' + attrname, this.attributes[attrname]);
}
var width = this.wrapper.scrollWidth;
this.style(regionEl, {
position: 'absolute',
zIndex: 2,
height: '100%',
top: '0px'
});
/* Resize handles */
if (this.resize) {
var handleLeft = regionEl.appendChild(document.createElement('handle'));
var handleRight = regionEl.appendChild(document.createElement('handle'));
handleLeft.className = 'wavesurfer-handle wavesurfer-handle-start';
handleRight.className = 'wavesurfer-handle wavesurfer-handle-end';
var css = {
cursor: 'col-resize',
position: 'absolute',
left: '0px',
top: '0px',
width: '1%',
maxWidth: '4px',
height: '100%'
};
this.style(handleLeft, css);
this.style(handleRight, css);
this.style(handleRight, {
left: '100%'
});
}
this.element = this.wrapper.appendChild(regionEl);
this.updateRender();
this.bindEvents(regionEl);
},
formatTime: function formatTime(start, end) {
return (start == end ? [start] : [start, end]).map(function (time) {
return [Math.floor(time % 3600 / 60), // minutes
('00' + Math.floor(time % 60)).slice(-2) // seconds
].join(':');
}).join('-');
},
/* Update element's position, width, color. */
updateRender: function updateRender(pxPerSec) {
var dur = this.wavesurfer.getDuration();
var width;
if (pxPerSec) {
width = Math.round(this.wavesurfer.getDuration() * pxPerSec);
} else {
width = this.wrapper.scrollWidth;
}
if (this.start < 0) {
this.start = 0;
this.end = this.end - this.start;
}
if (this.end > dur) {
this.end = dur;
this.start = dur - (this.end - this.start);
}
if (this.minLength != null) {
this.end = Math.max(this.start + this.minLength, this.end);
}
if (this.maxLength != null) {
this.end = Math.min(this.start + this.maxLength, this.end);
}
if (this.element != null) {
this.style(this.element, {
left: ~~(this.start / dur * width) + 'px',
width: ~~((this.end - this.start) / dur * width) + 'px',
backgroundColor: this.color,
cursor: this.drag ? 'move' : 'default'
});
for (var attrname in this.attributes) {
this.element.setAttribute('data-region-' + attrname, this.attributes[attrname]);
}
this.element.title = this.formatTime(this.start, this.end);
}
},
/* Bind audio events. */
bindInOut: function bindInOut() {
var my = this;
my.firedIn = false;
my.firedOut = false;
var onProcess = function onProcess(time) {
if (!my.firedOut && my.firedIn && (my.start >= Math.round(time * 100) / 100 || my.end <= Math.round(time * 100) / 100)) {
my.firedOut = true;
my.firedIn = false;
my.fireEvent('out');
my.wavesurfer.fireEvent('region-out', my);
}
if (!my.firedIn && my.start <= time && my.end > time) {
my.firedIn = true;
my.firedOut = false;
my.fireEvent('in');
my.wavesurfer.fireEvent('region-in', my);
}
};
this.wavesurfer.backend.on('audioprocess', onProcess);
this.on('remove', function () {
my.wavesurfer.backend.un('audioprocess', onProcess);
});
/* Loop playback. */
this.on('out', function () {
if (my.loop) {
my.wavesurfer.play(my.start);
}
});
},
/* Bind DOM events. */
bindEvents: function bindEvents() {
var my = this;
this.element.addEventListener('mouseenter', function (e) {
my.fireEvent('mouseenter', e);
my.wavesurfer.fireEvent('region-mouseenter', my, e);
});
this.element.addEventListener('mouseleave', function (e) {
my.fireEvent('mouseleave', e);
my.wavesurfer.fireEvent('region-mouseleave', my, e);
});
this.element.addEventListener('click', function (e) {
e.preventDefault();
my.fireEvent('click', e);
my.wavesurfer.fireEvent('region-click', my, e);
});
this.element.addEventListener('dblclick', function (e) {
e.stopPropagation();
e.preventDefault();
my.fireEvent('dblclick', e);
my.wavesurfer.fireEvent('region-dblclick', my, e);
});
/* Drag or resize on mousemove. */
(this.drag || this.resize) && function () {
var duration = my.wavesurfer.getDuration();
var drag;
var resize;
var startTime;
var touchId;
var onDown = function onDown(e) {
if (e.touches && e.touches.length > 1) {
return;
}
touchId = e.targetTouches ? e.targetTouches[0].identifier : null;
e.stopPropagation();
startTime = my.wavesurfer.drawer.handleEvent(e, true) * duration;
if (e.target.tagName.toLowerCase() == 'handle') {
if (e.target.classList.contains('wavesurfer-handle-start')) {
resize = 'start';
} else {
resize = 'end';
}
} else {
drag = true;
resize = false;
}
};
var onUp = function onUp(e) {
if (e.touches && e.touches.length > 1) {
return;
}
if (drag || resize) {
drag = false;
resize = false;
my.fireEvent('update-end', e);
my.wavesurfer.fireEvent('region-update-end', my, e);
}
};
var onMove = function onMove(e) {
if (e.touches && e.touches.length > 1) {
return;
}
if (e.targetTouches && e.targetTouches[0].identifier != touchId) {
return;
}
if (drag || resize) {
var time = my.wavesurfer.drawer.handleEvent(e) * duration;
var delta = time - startTime;
startTime = time;
// Drag
if (my.drag && drag) {
my.onDrag(delta);
}
// Resize
if (my.resize && resize) {
my.onResize(delta, resize);
}
}
};
my.element.addEventListener('mousedown', onDown);
my.element.addEventListener('touchstart', onDown);
my.wrapper.addEventListener('mousemove', onMove);
my.wrapper.addEventListener('touchmove', onMove);
document.body.addEventListener('mouseup', onUp);
document.body.addEventListener('touchend', onUp);
my.on('remove', function () {
document.body.removeEventListener('mouseup', onUp);
document.body.removeEventListener('touchend', onUp);
my.wrapper.removeEventListener('mousemove', onMove);
my.wrapper.removeEventListener('touchmove', onMove);
});
my.wavesurfer.on('destroy', function () {
document.body.removeEventListener('mouseup', onUp);
document.body.removeEventListener('touchend', onUp);
});
}();
},
onDrag: function onDrag(delta) {
var maxEnd = this.wavesurfer.getDuration();
if (this.end + delta > maxEnd || this.start + delta < 0) {
return;
}
this.update({
start: this.start + delta,
end: this.end + delta
});
},
onResize: function onResize(delta, direction) {
if (direction == 'start') {
this.update({
start: Math.min(this.start + delta, this.end),
end: Math.max(this.start + delta, this.end)
});
} else {
this.update({
start: Math.min(this.end + delta, this.start),
end: Math.max(this.end + delta, this.start)
});
}
}
};
WaveSurfer.util.extend(WaveSurfer.Region, WaveSurfer.Observer);
/* Augment WaveSurfer with region methods. */
WaveSurfer.initRegions = function () {
if (!this.regions) {
this.regions = Object.create(WaveSurfer.Regions);
this.regions.init(this);
}
};
WaveSurfer.addRegion = function (options) {
this.initRegions();
return this.regions.add(options);
};
WaveSurfer.clearRegions = function () {
this.regions && this.regions.clear();
};
WaveSurfer.enableDragSelection = function (options) {
this.initRegions();
this.regions.enableDragSelection(options);
};
WaveSurfer.disableDragSelection = function () {
this.regions.disableDragSelection();
};
});
/***/ }
/******/ ])
});
;