Struct ActionContext 

pub struct ActionContext {
    pub frame: Frame,
    pub space: Rc<RefCell<dyn ObjectSpace>>,
    pub selected: Vec<Object>,
    pub view: Option<ViewInfo>,
    pub input: ActionInput,
    /* private fields */
}

What an action sees while running. A copy is the same run: what it asks for next counts.

Fields

frame: Frame

The frame it runs in.

space: Rc<RefCell<dyn ObjectSpace>>

The records to read and write. A handler commits when it means to.

selected: Vec<Object>

The records selected.

view: Option<ViewInfo>

The view it runs on.

input: ActionInput

What people gave it.

Implementations

impl ActionContext

pub fn service<T: 'static>(&self) -> Option<Rc<T>>

Something the application gave its actions, by its type.

pub fn message(&self, message: Message)

Tells people something, as long as whoever shows the application listens.

pub fn show_view(&self, id: impl Into<String>)

Asks the frame to show this view when the action ends.

pub fn records_changed(&self)

Tells whoever shows the application that records changed, so what shows them reads again.

Trait Implementations

impl Clone for ActionContext

fn clone(&self) -> ActionContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ActionContext

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

Formats the value using the given formatter.