Mailspring/static/index.js

// This is to prevent React from displaying an annoying message about
// installing their dev tools. The React dev tools put a variable on the
// global scope. We need to do it here before React loads.
window.__REACT_DEVTOOLS_GLOBAL_HOOK__ = {}

var path = require('path');

function setLoadTime (loadTime) {
  if (global.NylasEnv) {
    global.NylasEnv.loadTime = loadTime
    console.log('Window load time: ' + global.NylasEnv.getWindowLoadTime() + 'ms')
  }
}

function handleSetupError (error) {
  var currentWindow = require('remote').getCurrentWindow()
  currentWindow.setSize(800, 600)
  currentWindow.center()
  currentWindow.show()
  currentWindow.openDevTools()
  console.error(error.stack || error)
}

function copyEnvFromMainProcess() {
  var _ = require('underscore');
  var remote = require('remote');
  var newEnv = _.extend({}, process.env, remote.process.env);
  process.env = newEnv;
}

function setupWindow (loadSettings) {
  if (process.platform === 'linux') {
    // This will properly inherit process.env from the main process, which it
    // doesn't do by default on Linux. See:
    // https://github.com/atom/electron/issues/3306
    copyEnvFromMainProcess();
  }

  var CompileCache = require('../src/compile-cache')

  // TODO: Re-enable hotreloading when react-proxy is added.
  var hotreload = false
  CompileCache.setHotReload(hotreload)

  CompileCache.setHomeDirectory(loadSettings.configDirPath)

  var ModuleCache = require('../src/module-cache')
  ModuleCache.register(loadSettings)
  ModuleCache.add(loadSettings.resourcePath)

  // Start the crash reporter before anything else.
  // require('crash-reporter').start({
  //   productName: 'N1',
  //   companyName: 'Nylas',
  //   // By explicitly passing the app version here, we could save the call
  //   // of "require('remote').require('app').getVersion()".
  //   extra: {_version: loadSettings.appVersion}
  // })

  setupVmCompatibility()
  setupCsonCache(CompileCache.getCacheDirectory())

  require(loadSettings.bootstrapScript)
  require('electron').ipcRenderer.send('window-command', 'window:loaded')
}

function setupCsonCache (cacheDir) {
  require('season').setCacheDir(path.join(cacheDir, 'cson'))
}

function setupVmCompatibility () {
  var vm = require('vm')
  if (!vm.Script.createContext) {
    vm.Script.createContext = vm.createContext
  }
}


window.onload = function() {
  // wait for first frame, which will be blank
  window.requestAnimationFrame(function() {
    // wait for second frame, which is correct
    window.requestAnimationFrame(function() {
      try {
        var startTime = Date.now();

        var fs = require('fs');
        var path = require('path');

        // Skip "?loadSettings=".
        var rawLoadSettings = decodeURIComponent(location.search.substr(14));
        var loadSettings;
        try {
          loadSettings = JSON.parse(rawLoadSettings);
        } catch (error) {
          console.error("Failed to parse load settings: " + rawLoadSettings);
          throw error;
        }

        if (loadSettings.loadingMessage) {
          document.getElementById("application-loading-text-supplement").innerHTML = loadSettings.loadingMessage
        }

        // Normalize to make sure drive letter case is consistent on Windows
        process.resourcesPath = path.normalize(process.resourcesPath);

        setupWindow(loadSettings)
        setLoadTime(Date.now() - startTime)
      }
      catch (error) {
        handleSetupError(error)
      }
    });
  });
}