Struct SubclassingAdapter

pub struct SubclassingAdapter { /* private fields */ }

Uses dynamic Objective-C subclassing to implement the NSView accessibility methods when normal subclassing isn’t an option.

Implementations

impl SubclassingAdapter

pub unsafe fn new( view: *mut c_void, activation_handler: impl 'static + ActivationHandler, action_handler: impl 'static + ActionHandler, ) -> Self

Create an adapter that dynamically subclasses the specified view. This must be done before the view is shown or focused for the first time.

The action handler will always be called on the main thread.

Safety

view must be a valid, unreleased pointer to an NSView.

pub unsafe fn for_window( window: *mut c_void, activation_handler: impl 'static + ActivationHandler, action_handler: impl 'static + ActionHandler, ) -> Self

Create an adapter that dynamically subclasses the content view of the specified window.

The action handler will always be called on the main thread.

Safety

window must be a valid, unreleased pointer to an NSWindow.

Panics

This function panics if the specified window doesn’t currently have a content view.

pub fn update_if_active( &mut self, update_factory: impl FnOnce() -> TreeUpdate, ) -> Option<QueuedEvents>

If and only if the tree has been initialized, call the provided function and apply the resulting update. Note: If the caller’s implementation of ActivationHandler::request_initial_tree initially returned None, the TreeUpdate returned by the provided function must contain a full tree.

If a QueuedEvents instance is returned, the caller must call QueuedEvents::raise on it.

pub fn update_view_focus_state( &mut self, is_focused: bool, ) -> Option<QueuedEvents>

Update the tree state based on whether the window is focused.

If a QueuedEvents instance is returned, the caller must call QueuedEvents::raise on it.

Trait Implementations

impl Drop for SubclassingAdapter

fn drop(&mut self)

Executes the destructor for this type.