metamask-extension/shared/constants/app.js

/**
 * A string representing the type of environment the application is currently running in
 * popup - When the user click's the icon in their browser's extension bar; the default view
 * notification - When the extension opens due to interaction with a Web3 enabled website
 * fullscreen - When the user clicks 'expand view' to open the extension in a new tab
 * background - The background process that powers the extension
 * @typedef {'popup' | 'notification' | 'fullscreen' | 'background'} EnvironmentType
 */
export const ENVIRONMENT_TYPE_POPUP = 'popup';
export const ENVIRONMENT_TYPE_NOTIFICATION = 'notification';
export const ENVIRONMENT_TYPE_FULLSCREEN = 'fullscreen';
export const ENVIRONMENT_TYPE_BACKGROUND = 'background';

export const PLATFORM_BRAVE = 'Brave';
export const PLATFORM_CHROME = 'Chrome';
export const PLATFORM_EDGE = 'Edge';
export const PLATFORM_FIREFOX = 'Firefox';
export const PLATFORM_OPERA = 'Opera';

export const MESSAGE_TYPE = {
  ETH_DECRYPT: 'eth_decrypt',
  ETH_GET_ENCRYPTION_PUBLIC_KEY: 'eth_getEncryptionPublicKey',
  ETH_SIGN: 'eth_sign',
  ETH_SIGN_TYPED_DATA: 'eth_signTypedData',
  GET_PROVIDER_STATE: 'metamask_getProviderState',
  LOG_WEB3_SHIM_USAGE: 'metamask_logWeb3ShimUsage',
  PERSONAL_SIGN: 'personal_sign',
  WATCH_ASSET: 'wallet_watchAsset',
  WATCH_ASSET_LEGACY: 'metamask_watchAsset',
  ADD_ETHEREUM_CHAIN: 'wallet_addEthereumChain',
  SWITCH_ETHEREUM_CHAIN: 'metamask_switchEthereumChain',
};