問題描述

我一直在搜索 interwebz 和 Atom-shell 文檔，試圖找出如何在瀏覽器窗口中禁用 backspace 鍵的 back() 功能.

I've been scouring the interwebz and Atom-shell documentation trying to find out how to disable the back() functionality of the backspace key within a browser window.

我寧愿不必求助于 javascript onkeydown 偵聽器(它可以工作)，而是使用更原生的東西，在更多的應用程序級別而不是瀏覽器窗口級別.

I would prefer not to have to resort to a javascript onkeydown listener (which works) and rather use something more native and at more of the application level instead of the browser window level.

推薦答案

我想出在沒有 onkeydown 監聽器的情況下做到這一點的唯一方法是使用全局快捷方式和 ipc 事件電子接口.

The only way I have figured out to do this without the onkeydown listener is with a global-shortcut and the ipc events in the Electron api.

首先聲明...

使用全局快捷方式禁用任何鍵確實會在您的計算機上全局禁用它！使用全球快捷方式時請小心！如果您忘記取消注冊您的快捷方式，或者沒有正確處理它，您會發現如果沒有退格，您將很難修復您的錯誤！

Disabling any key with a global shortcut really does disable it GLOBALLY on your computer! PLEASE BE CAREFUL WHEN USING GLOBAL SHORTCUTS! If you forget to unregister your shortcut, or do not handle it properly, you will find it difficult to fix your mistake without backspace!

也就是說這對我有用...

That said this is what worked for me...

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

app.on('ready', () => {

    // Create the browser window
    let mainWindow = new BrowserWindow({width: 800, height: 600});

    // and load the index.html of the app
    mainWindow.loadUrl('file://' + __dirname + '/index.html');

    // Register a 'Backspace' shortcut listener when focused on window
    mainWindow.on('focus', () => {

        if (mainWindow.isFocused()) {
            globalShortcut.register('Backspace', () => {

                // Provide feedback or logging here 
                // If you leave this section blank, you will get no
                // response when you try the shortcut (i.e. Backspace).

                console.log('Backspace was pressed!'); //comment-out or delete when ready.
            });
        });
    });

    //  ** THE IMPORTANT PART **
    // Unregister a 'Backspace' shortcut listener when leaving window.
    mainWindow.on('blur', () => {

        globalShortcut.unregister('Backspace');
        console.log('Backspace is unregistered!'); //comment-out or delete when ready.
    });
});

或者，您可以像這樣在 ipcToggle"事件處理程序中添加快捷方式...

Alternatively you could add the shortcut inside an ipc "Toggle" event handler like this...

// In the main process
ipcMain.on('disableKey-toggle', (event, keyToDisable) => {
    if (!globalShortcut.isRegistered(keyToDisable){

        globalShortcut.register(keyToDisable, () => {
            console.log(keyToDisable+' is registered!'); //comment-out or delete when ready.

        });
    } else {

        globalShortcut.unregister(keyToDisable);
        console.log(keyToDisable+' is unregistered!'); //comment-out or delete when ready.
    }
});

// In the render process send the accelerator of the keyToDisable.
// Here we use the 'Backspace' accelerator.
const { ipcRenderer } = require('electron');
ipcRenderer.send('disableKey-toggle', 'Backspace'); 

這篇關于在 Atom-shell 中禁用退格鍵的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！