JetBrains: Build a Java→JS bridge

Created by: vdavid

Context

We already have a JS→Java bridge. On the Java side, we can run any JS with cefBrowser.executeJavaScript(). Example use case: notifying the web view when the theme changes.

Problem

Running any JS doesn’t sound like a good idea. If there is no planning around this, it'll likely become tough to understand what we're calling from Java and when.

Solution

Create a dedicated interface on the Java side. It would give us a single place for JS calls, plus some type safety. The result should probably be similar to the JS→Java bridge.