angular2-hmr/dist/webpack-hmr.js

angular2-hmr: Hot Module Replacement for Webpack and Angular 2

"use strict";
var hmr_store_1 = require('./hmr-store');
function hotModuleReplacement(bootloader, module, options) {
    if (options === void 0) { options = {}; }
    if (!module.hot) {
        console.warn('Warning: please use webpack hot flag');
        return document.addEventListener('DOMContentLoaded', function () { return bootloader(); });
    }
    hmr_store_1.HmrStore.dev = true;
    var LOCALSTORAGE_KEY = options.LOCALSTORAGE_KEY || '@@WEBPACK_INITIAL_DATA';
    var LOCAL = options.localStorage || false;
    var TOKEN = options.storeToken || hmr_store_1.HmrStore;
    var DISPOSE = options.globalDispose || 'WEBPACK_HMR_beforeunload';
    var GET_STATE = options.getState || getState;
    var DATA = options.data || module.hot.data && module.hot.data.state;
    var COMPONENT_REF = null;
    var disposed = false;
    function getState(appState) {
        var json = appState.toJSON();
        if (LOCAL) {
            console.time('localStorage');
            localStorage.setItem(LOCALSTORAGE_KEY, JSON.stringify(appState));
            console.timeEnd('localStorage');
        }
        return json;
    }
    console.log('DATA', DATA);
    if (!DATA && LOCAL) {
        try {
            console.time('start localStorage');
            DATA = JSON.parse(localStorage.getItem(LOCALSTORAGE_KEY)) || DATA;
            console.timeEnd('start localStorage');
        }
        catch (e) {
            console.log('JSON.parse Error', e);
        }
    }
    console.time('bootstrap');
    if (document.readyState === 'complete') {
        bootloader(DATA)
            .then(function (cmpRef) { return COMPONENT_REF = cmpRef; })
            .then((function (cmpRef) { return (console.timeEnd('bootstrap'), cmpRef); }));
    }
    else {
        document.addEventListener('DOMContentLoaded', function () {
            bootloader(DATA)
                .then(function (cmpRef) { return COMPONENT_REF = cmpRef; })
                .then((function (cmpRef) { return (console.timeEnd('bootstrap'), cmpRef); }));
        });
    }
    function beforeunload(event) {
        var injector = COMPONENT_REF.injector;
        var appState;
        if ('getOptional' in injector) {
            appState = COMPONENT_REF.injector.getOptional(TOKEN) || TOKEN;
        }
        else {
            appState = COMPONENT_REF.injector.get(TOKEN, TOKEN);
        }
        return GET_STATE(appState);
    }
    window[DISPOSE] = function () {
        disposed = true;
        window.removeEventListener('beforeunload', beforeunload);
        if (LOCAL) {
            localStorage.removeItem(LOCALSTORAGE_KEY);
        }
    };
    module.hot.accept();
    window.addEventListener('beforeunload', beforeunload);
    module.hot.dispose(function (data) {
        console.time('dispose');
        var componentNode = COMPONENT_REF.location.nativeElement;
        var newNode = document.createElement(componentNode.tagName);
        // display none
        var currentDisplay = newNode.style.display;
        newNode.style.display = 'none';
        var parentNode = componentNode.parentNode;
        parentNode.insertBefore(newNode, componentNode);
        var injector = COMPONENT_REF.injector;
        var appState;
        if ('getOptional' in injector) {
            appState = COMPONENT_REF.injector.getOptional(TOKEN) || TOKEN;
        }
        else {
            appState = COMPONENT_REF.injector.get(TOKEN, TOKEN);
        }
        var json = GET_STATE(appState, COMPONENT_REF);
        data.state = json;
        if ('destroy' in COMPONENT_REF) {
            COMPONENT_REF.destroy();
        }
        else if ('dispose' in COMPONENT_REF) {
            COMPONENT_REF.dispose();
        }
        newNode.style.display = currentDisplay;
        if (!disposed) {
            window.removeEventListener('beforeunload', beforeunload);
        }
        disposed = true;
        console.timeEnd('dispose');
    });
}
exports.hotModuleReplacement = hotModuleReplacement;
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