You only need to implement the window system and widget rendering glue. The layout, javascript, CSS, DOM, history, etc is all platform independent. But impleme

You only need to implement the window system and widget rendering glue. The layout, javascript, CSS, DOM, history, etc is all platform independent. But implementing `drawButton()`, `blitToScreen()` and similar is in no way similar to implementing a C++ compiler, as you implied. An example of a port is here, in this directory: https://trac.webkit.org/browser/trunk/Source/WebCore/platform/efl https://trac.webkit.org/browser/trunk/Source/WebCore/platfor...