dialog.showMessageBox不返回电子main.js中的按钮索引 [英] dialog.showMessageBox not returning button index in electron main.js

问题描述

我有一个消息框，当用户在dashboardWindow上单击关闭时（Windows操作系统右上角的X按钮），该消息框将打开。

I have a messagebox that will open when the user click close on dashboardWindow (X button top right on windows os)

dashboardWindow.on("close", (event) => {
    event.preventDefault();
    console.log("before message box");
    dialog.showMessageBox(
      dashboardWindows,
      {
        message: "Test",
        buttons: ["Default Button", "Cancel Button"],
        defaultId: 0, // bound to buttons array
        cancelId: 1 // bound to buttons array
      },
      (response) => {
        if (response === 0) {
          // bound to buttons array
          console.log("Default button clicked.");
        } else if (response === 1) {
          // bound to buttons array
          console.log("Cancel button clicked.");
        }
      }
    );
    console.log("after message box");
  });
}

当我关闭dashboardWindow时，消息框已打开，但我却没有得到响应=== 0 即可正常工作。 Samehow console.log（消息框后）; 已经运行，即使没有单击按钮也是如此。如何使响应有效（messageBox上的返回索引按钮）？

The messagebox opened when i close the dashboardWindow but i can't get response === 0 to work. Samehow console.log("after message box"); already run even when there is no click on the buttons. How I can make the response work (return index button on messageBox)?

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推荐答案

请参阅有关以下内容的最新API文档： dialog.showMessageBox ：此方法返回Promise对象，并且不使用不再有回调函数，就像以前一样，直到Electron v5.xx

Please refer to the most recent API doc about dialog.showMessageBox: this method returns a Promise object and doesn't make use of a callback function any more, like it used to until Electron v5.x.x.

返回 Promise< Object> -做出包含
以下属性的承诺来解决：

Returns Promise<Object> - resolves with a promise containing the following properties:

• 响应数值-单击按钮的索引。


• checkboxChecked 布尔值-如果<$，复选框的选中状态设置了c $ c> checkboxLabel 。否则 false 。

• response Number - The index of the clicked button.
• checkboxChecked Boolean - The checked state of the checkbox if checkboxLabel was set. Otherwise false.

这应该可行然后（不过在您的上下文中未经测试）：

This should work then (untested in your context though):

dashboardWindow.on("close", (event) => {
    event.preventDefault();
    console.log("before message box");
    dialog.showMessageBox(
      dashboardWindows,
      {
        message: "Test",
        buttons: ["Default Button", "Cancel Button"],
        defaultId: 0, // bound to buttons array
        cancelId: 1 // bound to buttons array
      })
      .then(result => {
        if (result.response === 0) {
          // bound to buttons array
          console.log("Default button clicked.");
        } else if (result.response === 1) {
          // bound to buttons array
          console.log("Cancel button clicked.");
        }
      }
    );
    console.log("after message box");
  });

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