electron/atom/renderer/lib/init.js

var Module, arg, error, error1, events, globalPaths, i, len, nodeIntegration, path, pathname, preloadScript, ref, url, v8Util;

events = require('events');

path = require('path');

url = require('url');

Module = require('module');


/*
  We modified the original process.argv to let node.js load the
  atom-renderer.js, we need to restore it here.
 */

process.argv.splice(1, 1);


/* Clear search paths. */

require(path.resolve(__dirname, '..', '..', 'common', 'lib', 'reset-search-paths'));


/* Import common settings. */

require(path.resolve(__dirname, '..', '..', 'common', 'lib', 'init'));

globalPaths = Module.globalPaths;

if (!process.env.ELECTRON_HIDE_INTERNAL_MODULES) {
  globalPaths.push(path.resolve(__dirname, '..', 'api', 'lib'));
}


/* Expose public APIs. */

globalPaths.push(path.resolve(__dirname, '..', 'api', 'lib', 'exports'));


/* The global variable will be used by ipc for event dispatching */

v8Util = process.atomBinding('v8_util');

v8Util.setHiddenValue(global, 'ipc', new events.EventEmitter);


/* Process command line arguments. */

nodeIntegration = 'false';

ref = process.argv;
for (i = 0, len = ref.length; i < len; i++) {
  arg = ref[i];
  if (arg.indexOf('--guest-instance-id=') === 0) {

    /* This is a guest web view. */
    process.guestInstanceId = parseInt(arg.substr(arg.indexOf('=') + 1));
  } else if (arg.indexOf('--opener-id=') === 0) {

    /* This is a guest BrowserWindow. */
    process.openerId = parseInt(arg.substr(arg.indexOf('=') + 1));
  } else if (arg.indexOf('--node-integration=') === 0) {
    nodeIntegration = arg.substr(arg.indexOf('=') + 1);
  } else if (arg.indexOf('--preload=') === 0) {
    preloadScript = arg.substr(arg.indexOf('=') + 1);
  }
}

if (location.protocol === 'chrome-devtools:') {

  /* Override some inspector APIs. */
  require('./inspector');
  nodeIntegration = 'true';
} else if (location.protocol === 'chrome-extension:') {

  /* Add implementations of chrome API. */
  require('./chrome-api');
  nodeIntegration = 'true';
} else {

  /* Override default web functions. */
  require('./override');

  /* Load webview tag implementation. */
  if (process.guestInstanceId == null) {
    require('./web-view/web-view');
    require('./web-view/web-view-attributes');
  }
}

if (nodeIntegration === 'true' || nodeIntegration === 'all' || nodeIntegration === 'except-iframe' || nodeIntegration === 'manual-enable-iframe') {

  /* Export node bindings to global. */
  global.require = require;
  global.module = module;

  /* Set the __filename to the path of html file if it is file: protocol. */
  if (window.location.protocol === 'file:') {
    pathname = process.platform === 'win32' && window.location.pathname[0] === '/' ? window.location.pathname.substr(1) : window.location.pathname;
    global.__filename = path.normalize(decodeURIComponent(pathname));
    global.__dirname = path.dirname(global.__filename);

    /* Set module's filename so relative require can work as expected. */
    module.filename = global.__filename;

    /* Also search for module under the html file. */
    module.paths = module.paths.concat(Module._nodeModulePaths(global.__dirname));
  } else {
    global.__filename = __filename;
    global.__dirname = __dirname;
  }

  /* Redirect window.onerror to uncaughtException. */
  window.onerror = function(message, filename, lineno, colno, error) {
    if (global.process.listeners('uncaughtException').length > 0) {
      global.process.emit('uncaughtException', error);
      return true;
    } else {
      return false;
    }
  };

  /* Emit the 'exit' event when page is unloading. */
  window.addEventListener('unload', function() {
    return process.emit('exit');
  });
} else {

  /* Delete Node's symbols after the Environment has been loaded. */
  process.once('loaded', function() {
    delete global.process;
    delete global.setImmediate;
    delete global.clearImmediate;
    return delete global.global;
  });
}


/* Load the script specfied by the "preload" attribute. */

if (preloadScript) {
  try {
    require(preloadScript);
  } catch (error1) {
    error = error1;
    if (error.code === 'MODULE_NOT_FOUND') {
      console.error("Unable to load preload script " + preloadScript);
    } else {
      console.error(error);
      console.error(error.stack);
    }
  }
}