Struct ModeSwitcher 

pub struct ModeSwitcher { /* private fields */ }

Handles mode transitions with context preservation

The ModeSwitcher is responsible for:

• Validating mode transitions
• Preserving context across switches
• Restoring context after switches
• Managing mode-specific data

Implementations

impl ModeSwitcher

pub fn new(context: ModeContext) -> Self

Create a new mode switcher with the given context

pub fn register_mode(&mut self, mode: Arc<dyn Mode>)

Register a mode

pub fn get_mode(&self, id: &str) -> Result<Arc<dyn Mode>>

Get a registered mode by ID

pub async fn current_mode(&self) -> Result<Option<Arc<dyn Mode>>>

Get the current active mode

pub async fn current_mode_id(&self) -> Option<String>

Get the current mode ID

pub async fn switch_mode(&self, mode_id: &str) -> Result<Arc<dyn Mode>>

Switch to a different mode with context preservation

This method:

1. Validates the mode exists
2. Saves the current context if switching from a mode
3. Restores the saved context for the new mode if available
4. Creates a fresh context if the mode hasn’t been visited before
5. Updates the current mode

pub async fn context(&self) -> ModeContext

Get the current context

pub async fn update_context<F>(&self, f: F) -> Result<()>

where F: FnOnce(&mut ModeContext),

Update the context with a closure

pub async fn save_context_for_mode(&self, mode_id: &str) -> Result<()>

Save the current context for a specific mode

pub async fn restore_context_for_mode(&self, mode_id: &str) -> Result<()>

Restore context for a specific mode

pub fn has_mode(&self, id: &str) -> bool

Check if a mode is registered

pub fn mode_count(&self) -> usize

Get the number of registered modes

pub fn list_mode_ids(&self) -> Vec<String>

Get all registered mode IDs

pub async fn has_saved_context(&self, mode_id: &str) -> bool

Check if context is saved for a mode

pub async fn saved_context_count(&self) -> usize

Get the number of saved contexts

pub async fn clear_saved_contexts(&self)

Clear all saved contexts