ducha-qianduan/node_modules/webpack-dev-server/client/utils/reloadApp.js

'use strict';
/* global WorkerGlobalScope self */

var _require = require('./log'),
    log = _require.log;

function reloadApp(_ref, _ref2) {
  var hotReload = _ref.hotReload,
      hot = _ref.hot,
      liveReload = _ref.liveReload;
  var isUnloading = _ref2.isUnloading,
      currentHash = _ref2.currentHash;

  if (isUnloading || !hotReload) {
    return;
  }

  if (hot) {
    log.info('[WDS] App hot update...');

    var hotEmitter = require('webpack/hot/emitter');

    hotEmitter.emit('webpackHotUpdate', currentHash);

    if (typeof self !== 'undefined' && self.window) {
      // broadcast update to window
      self.postMessage("webpackHotUpdate".concat(currentHash), '*');
    }
  } // allow refreshing the page only if liveReload isn't disabled
  else if (liveReload) {
      var rootWindow = self; // use parent window for reload (in case we're in an iframe with no valid src)

      var intervalId = self.setInterval(function () {
        if (rootWindow.location.protocol !== 'about:') {
          // reload immediately if protocol is valid
          applyReload(rootWindow, intervalId);
        } else {
          rootWindow = rootWindow.parent;

          if (rootWindow.parent === rootWindow) {
            // if parent equals current window we've reached the root which would continue forever, so trigger a reload anyways
            applyReload(rootWindow, intervalId);
          }
        }
      });
    }

  function applyReload(rootWindow, intervalId) {
    clearInterval(intervalId);
    log.info('[WDS] App updated. Reloading...');
    rootWindow.location.reload();
  }
}

module.exports = reloadApp;