callback for when document.title is changed?

[PerBothner]

If a document in a WebView sets document.title, it would be nice to get a some kind of notification. This could be used to update the window title. Electron has a page-title-updated event, Of course this is only needed when you don't control the JavaScript in the window, so the priority is probably low.

[amrbashir]

This seems to be possible on all platforms:

• Windows: https://docs.rs/webview2-com/latest/webview2_com/Microsoft/Web/WebView2/Win32/struct.ICoreWebView2.html#method.add_DocumentTitleChanged
• Linux: https://docs.rs/webkit2gtk/latest/webkit2gtk/trait.WebViewExt.html#tymethod.connect_title_notify
• Android: https://developer.android.com/reference/android/webkit/WebChromeClient#onReceivedTitle(android.webkit.WebView,%20java.lang.String)
• macOS/iOS: https://developer.apple.com/documentation/webkit/wkwebview/1415015-title?language=objc , this property is KVO compliant which means it can be tracked using addObserver