Register a theme dependency

This function registers a function that returns an htmlDependency() or list of such objects. If session$setCurrentTheme() is called, the function will be re-executed, and the resulting html dependency will be sent to the client.

registerThemeDependency(func)

Arguments

func	A function that takes one argument, theme (which is a sass::sass_layer() object), and returns an htmlDependency object, or list of them.

Details

Note that func should not be an anonymous function, or a function which is defined within the calling function. This is so that, registerThemeDependency() is called multiple times with the function, it tries to deduplicate them