Devtools jail feature

Devtools Jail

With the feature Devtools jail you can limit the functions of devtools inside an iframe of your window. That means the user can only inspect the DOM elements and JavaScript files in the iframe.

To do that, call Window.showDevTools(id) where id is the value of id attribute of the iframe element.

This feature is useful for developing IDE with node-webkit: the IDE developers want their users (application developers) to be able to debug their application with Devtools. The UI of the user's application is shown in an iframe in an simulator window, the outer parts of which is used for decoration or control buttons.

Headless

If you want to show Devtools in an iframe of your window, you can use this feature:

Call Window.showDevTools(id, headless). When headless is true, there will be no new window popped up to show Devtools. A devtools-opened event will be sent to the Window object with a url parameter, which is the URL for showing Devtools UI.

    var win = nwgui.Window.get();
    win.showDevTools('frame0', true);
    win.on("devtools-opened", function(url) {
        console.log("devtools-opened: " + url);
        document.getElementById('devtools').src = url;
    });