react-a11y/lib/after.js

Warns about potential accessibility issues with your React elements.

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

// store how to undo these changes
var restoreFunctions = [];

// does nothing
var noop = function noop() {
    return null;
};

var after = function after(host, name, cb) {
    if (!host) {
        throw new Error('cannot replace function on undefined');
    }

    // save original
    var original = host[name] || noop;

    // override host
    host[name] = function () {
        for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
            args[_key] = arguments[_key];
        }

        // perform original
        original.apply(host, args);
        // perform cb
        cb.apply(undefined, args);
    };

    // save restoring function
    restoreFunctions.push(function () {
        host[name] = original;
    });
};

after.restorePatchedMethods = function () {
    // perform each restoring function
    restoreFunctions.forEach(function (restore) {
        return restore();
    });

    // clear the list of functions to restore
    restoreFunctions = [];
};

after.render = function (component, fn) {
    after(component, 'componentDidMount', fn);
    after(component, 'componentDidUpdate', fn);
};

exports.default = after;