Enum CloseAction 

pub enum CloseAction {
    Exit,
    KeepRunning,
}

What the shell should do about a window-close request (see DesktopExtensions::on_close_requested).

Variants

Exit

Exit the event loop — this shell’s historical unconditional behavior and the default. Returning from run_app is what drops the frame executor, which is what persists the pipeline cache, so this is also the only action that runs the real shutdown path.

KeepRunning

Leave the loop running: the extension has already handled the request (macOS hiding the window instead of quitting, per DesktopConfig::quit_on_last_window_closed). The extension then owns the eventual real exit — nothing else in this core will call event_loop.exit() on its behalf, so a shell that returns this and never quits leaves the app running with no window, which is precisely the macOS convention it exists for.

Trait Implementations

impl Clone for CloseAction

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for CloseAction

impl Debug for CloseAction

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for CloseAction

impl PartialEq for CloseAction

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for CloseAction