react-wavesurfer
Version:
React component wrapper for wavesurfer.js
295 lines (249 loc) • 10.2 kB
JavaScript
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory(require("react"), require("prop-types"));
else if(typeof define === 'function' && define.amd)
define(["react", "prop-types"], factory);
else if(typeof exports === 'object')
exports["plugins/regions"] = factory(require("react"), require("prop-types"));
else
root["Wavesurfer"] = root["Wavesurfer"] || {}, root["Wavesurfer"]["plugins/regions"] = factory(root["React"], root["prop-types"]);
})(this, function(__WEBPACK_EXTERNAL_MODULE_0__, __WEBPACK_EXTERNAL_MODULE_1__) {
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module.exports = __WEBPACK_EXTERNAL_MODULE_0__;
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/* 1 */
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module.exports = __WEBPACK_EXTERNAL_MODULE_1__;
/***/ }),
/* 2 */,
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/***/ (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__(0);
var _propTypes = __webpack_require__(1);
var _propTypes2 = _interopRequireDefault(_propTypes);
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; }
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, (Regions.__proto__ || 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 ({}.hasOwnProperty.call(nextProps.regions, 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 ({}.hasOwnProperty.call(oldRegions, 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,
wavesurfer = _props.wavesurfer,
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 ({}.hasOwnProperty.call(regions, 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 false;
}
}]);
return Regions;
}(_react.Component);
Regions.propTypes = {
isReady: _propTypes2.default.bool,
regions: _propTypes2.default.object,
wavesurfer: _propTypes2.default.object
};
Regions.defaultProps = {
regions: []
};
exports.default = Regions;
/***/ })
/******/ ]);
});
//# sourceMappingURL=regions.js.map