How to config the Dev Tools size and position in Electron

Configuring the size and position of Chrome Developer Tools (DevTools) in Electron primarily involves using the webContents property of the BrowserWindow class. This property provides a series of methods to manipulate the Developer Tools, such as openDevTools, closeDevTools, etc. Below, I will explain in detail how to configure these parameters and provide a simple example demonstrating how to implement this functionality in an Electron application.

Step 1: Create and Configure the Main Window

First, we need to create the main window of Electron. This is typically done in the createWindow function of the main process.

javascript
const { app, BrowserWindow } = require('electron');

function createWindow() {
    // Create browser window
    let win = new BrowserWindow({
        width: 800,
        height: 600,
        webPreferences: {
            nodeIntegration: true
        }
    });

    // Load index.html file
    win.loadFile('index.html');

    // Open Developer Tools
    win.webContents.openDevTools({
        mode: 'detach', // Detached window mode
        activate: true  // Activate window immediately
    });

    // Configure the size and position of the Developer Tools
    win.webContents.once('devtools-opened', () => {
        win.webContents.devToolsWebContents.executeJavaScript(`
            window.moveTo(100, 100);
            window.resizeTo(500, 500);
        `);
    });
}

app.whenReady().then(createWindow);

Step 2: Configure the Size and Position of Developer Tools

In the above code, we use devToolsWebContents to access the WebContents object of the Developer Tools. By listening to the devtools-opened event, we can ensure that the Developer Tools are fully loaded before executing JavaScript code to adjust their size and position.

In this example, we use the JavaScript functions window.moveTo and window.resizeTo to set the position and size of the Developer Tools window. These functions are used for moving and resizing the window, respectively.

Important Notes

• Ensure that the devtools-opened event is bound after calling openDevTools() but before the window is actually opened.
• mode: 'detach' is required to ensure that the Developer Tools open in a detached window, allowing proper control over their position and size.

By following these steps, you can flexibly control the display position and size of Chrome Developer Tools in your Electron application to meet various development and debugging requirements.