react-throttle

<!doctype html> <html lang="en"> <head> <title>Code coverage report for classes/processors/Base.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../../prettify.css" /> <link rel="stylesheet" href="../../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../../index.html">all files</a> / <a href="index.html">classes/processors/</a> Base.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> <span class="strong">100% </span> <span class="quiet">Statements</span> <span class='fraction'>25/25</span> </div> <div class='fl pad1y space-right2'> <span class="strong">100% </span> <span class="quiet">Branches</span> <span class='fraction'>8/8</span> </div> <div class='fl pad1y space-right2'> <span class="strong">100% </span> <span class="quiet">Functions</span> <span class='fraction'>8/8</span> </div> <div class='fl pad1y space-right2'> <span class="strong">100% </span> <span class="quiet">Lines</span> <span class='fraction'>18/18</span> </div> </div> </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57</td><td class="line-coverage quiet"><span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">1×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">9×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">9×</span> <span class="cline-any cline-yes">1×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">8×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">8×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">8×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">8×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">9×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">9×</span> <span class="cline-any cline-yes">8×</span> <span class="cline-any cline-yes">8×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">9×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">9×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">9×</span> <span class="cline-any cline-yes">12×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">2×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-yes">2×</span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span> <span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import React from 'react'; import lodash from 'lodash';   const _ = lodash.runInContext();   // Processes a ReactElement by iterating over its props, looking for // props which are specified by `handlersToWrap`. Matching props will // be passed to the derived class to be wrapped in a throttling function export default class Base { constructor(el, handlersToWrap, time) { if (this.constructor === Base) { throw new Error("Can't instantiate abstract class!"); }   // Array of handler names which we should wrap this.handlersToWrap = handlersToWrap;   // Throttle interval/delay this.time = time;   // Element that we are processing this.el = el;   // Array of handlers which we have wrapped (so we can unwrap them) this.handlers = []; }   // How the processed element is made public, memoized element = () => this._el || (this._el = this._processElement());   // Clone the element, overwriting unwrapped handlers with their wrapped versions _processElement = () => { this.handlers = this._wrapHandlers(); return React.cloneElement(this.el, this.handlers); };   // Find the handlers which should be wrapped by the throttling function _extractHandlers = () => _.pickBy(this.el.props, this._shouldWrapHandler);   // Pass each handler to the derived class to be wrapped _wrapHandlers = () => _.mapValues(this._extractHandlers(), this._wrapHandler);   _shouldWrapHandler = (handler, handlerName) => { return _.isFunction(handler) && this.handlersToWrap.includes(handlerName); };   // Cancel timers related to throttling destroy() { _.values(this.handlers).forEach(this._cancelThrottle); }   // Lodash provides cancel methods on throttle/debounce wrappers _cancelThrottle(handler) { handler.cancel && handler.cancel(); } }  </pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Mon Feb 08 2016 16:19:19 GMT+0000 (GMT) </div> </div> <script src="../../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="../../sorter.js"></script> </body> </html>