Registering global keyboard shortcuts

Menu in tray is a solution, but actually, we have an option to perform capturing actions even without opening the menu. NW.js allows us to assign global keyboard shortcuts:

  const shortcut = new nw.Shortcut({ 
      key: "Shift+Alt+4", 
      active: () => {} 
      failed: console.error 
    }); 
    
nw.App.registerGlobalHotKey( shortcut ); 
appWindow.on( "close", () => nw.App.unregisterGlobalHotKey( shortcut ) ); 
window.addEventListener( "beforeunload", () => nw.App.unregisterGlobalHotKey( shortcut ), false ); 

We use nw.Shortcut to create an object representing a shortcut. With nw.App.registerGlobalHotKey, the shortcut is registered. We use nw.App.unregisterGlobalHotKey to unregister the shortcut when the application closes or reloads.

That brings us to the following service:

./js/Service/Shortcut.js

const...