Struct FileDialog 

pub struct FileDialog { /* private fields */ }

The reusable file dialog — transient UI buffers + the current document identity; the model itself lives in EngineState’s history.

Implementations

impl FileDialog

pub fn new(state: &EngineState) -> Self

Seed from the engine’s current model so a freshly-booted document counts as clean (the seed history is the baseline; the first edit marks it dirty).

pub fn is_dirty(&self, state: &EngineState) -> bool

Dirty = the live model differs from the last saved/opened baseline. (Rolling the history does NOT change the request document, so navigating steps never marks dirty — only real edits/add/delete/reorder do.)

pub fn dispatch( &mut self, action: FileAction, state: &mut EngineState, store: &dyn ModelStore, )

Act on a toolbar file button. Some actions run immediately (New on a clean doc; Save on a named doc; Open/Save As on native w/ rfd); the rest open the modal in the matching [Mode].

pub fn show( &mut self, ctx: &Context, state: &mut EngineState, store: &dyn ModelStore, )

Draw the modal (if open) and pick up any completed async import. Called every frame by the shell with a ctx-level handle (the modal is ctx-level, like the command palette).