Sometimes the application programmer wants layout to occur sooner than walk wants to do it. Furthermore, the app might want to know when layout has completed.
In this PR we add support for immediate layout, and we also add new APIs that allow us to specify a callback function to notify us when layout is complete.
…hout layout
Sometimes the application programmer wants layout to occur sooner than walk wants to do it. Furthermore, the app might want to know when layout has completed.
In this PR we add support for immediate layout, and we also add new APIs that allow us to specify a callback function to notify us when layout is complete.
Fixes https://github.com/tailscale/walk/issues/83