protractor.Button no longer available in Protractor 4+

[rdbaron]

Bug report

• Node Version: 6.2.2
• Protractor Version: 4.0.2
• Browser(s): chrome
• Operating System and Version windows/macOS/linux

conf.js:

exports.config = {
  framework: 'jasmine2',
  specs: ['./test.js'],
  jasmineNodeOpts: { defaultTimeoutInterval: 360000 },
  allScriptsTimeout: 360000,
  capabilities: {
    'browserName': 'chrome',
    'chromeOptions': {
      args: ['--no-sandbox']
    }
  },

  onPrepare: function () {
    browser.driver.manage().window().maximize()
  }
}

test.js:

describe('angularjs homepage todo list', function() {
  it('should be able to right click', function() {
    browser.get('https://angularjs.org')

    browser.actions().mouseMove(element(by.model('todoList.todoText'))).perform()
    browser.actions().click(protractor.Button.RIGHT).perform()
    browser.sleep(5000)
  })
})

Running protractor conf.js:

Works with Protractor 3.3, here's the output when running with Protractor 4.0.2:

Failures:
1) angularjs homepage todo list should be able to right click
  Message:
    Failed: Cannot read property 'RIGHT' of undefined