如何在电子产品中安装MetaMask扩展？

Question

我已经成功地从https://github.com/aragon/metamask-plugin安装了扩展

当电子应用程序启动时，我可以看到加载的MetaMask插件，但不能用它做很多事情。有一些错误：

Uncaught TypeError: global._runtime.onConnect is not a function
    at Object.connect (blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:139)
    at setupStreams (blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:216)
    at Object.<anonymous> (blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:187)
    at Object.3../lib/extension (blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:265)
    at s (blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:1)
    at e (blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:1)
    at blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:1
connect @ blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:139
setupStreams @ blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:216
(anonymous) @ blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:187
3../lib/extension @ blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:265
s @ blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:1
e @ blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:1
(anonymous) @ blob:file:///c13a5138-3758-47ae-a481-a163d7aa6a19:1

和

App.js:49 Uncaught TypeError: window._setupMetaMaskPageStream is not a function
    at onMetaMaskLoad (http://localhost:1212/dist/renderer.dev.js:1081:14)
    at onMetaMaskLoad (http://localhost:1212/dist/renderer.dev.js:19790:30)
    at Object.ReactErrorUtils.invokeGuardedCallback (webpack:///./node_modules/react-dom/lib/ReactErrorUtils.js?:69:16)
    at executeDispatch (webpack:///./node_modules/react-dom/lib/EventPluginUtils.js?:85:21)
    at Object.executeDispatchesInOrder (webpack:///./node_modules/react-dom/lib/EventPluginUtils.js?:108:5)
    at executeDispatchesAndRelease (webpack:///./node_modules/react-dom/lib/EventPluginHub.js?:43:22)
    at executeDispatchesAndReleaseTopLevel (webpack:///./node_modules/react-dom/lib/EventPluginHub.js?:54:10)
    at Array.forEach (native)
    at forEachAccumulated (webpack:///./node_modules/react-dom/lib/forEachAccumulated.js?:24:9)
    at Object.processEventQueue (webpack:///./node_modules/react-dom/lib/EventPluginHub.js?:254:7)

Answer 1

这两个错误都是函数作用域绑定错误。函数this.setupMetaMaskPageStream和this._runtime.onConnect是从MetaMaskController中从其他函数调用的，但它们似乎是在没有保留MetaMask控制器的作用域的情况下被调用的，缺省为全局上下文(因此是window._setupMetaMaskPageStream)。

在看不到代码的情况下，很难知道您是如何在错误的上下文中调用这些方法的，但它可能涉及到bind或call函数。