Struct zng_ext_input::keyboard::KeyboardManager

pub struct KeyboardManager {}

Application extension that provides keyboard events targeting the focused widget.

This extension processes the raw keyboard events retargeting then to the focused widget, generating derived events and variables.

Events

Events this extension provides.

• KEY_INPUT_EVENT
• MODIFIERS_CHANGED_EVENT

Services

Services this extension provides.

• KEYBOARD

Dependencies

This extension requires the FOCUS and WINDOWS services before the first raw key input event. It does not require anything for initialization.

Trait Implementations

impl AppExtension for KeyboardManager

fn event_preview(&mut self, update: &mut EventUpdate)

Called just before event_ui when an event notifies.

fn register(&self, info: &mut AppExtensionsInfo)

where Self: Sized,

Register info abound this extension on the info list.

fn init(&mut self)

Initializes this extension.

fn enable_device_events(&self) -> bool

If the application should notify raw device events.

fn event_ui(&mut self, update: &mut EventUpdate)

Called just before event.

fn event(&mut self, update: &mut EventUpdate)

Called after event_ui.

fn info(&mut self, info_widgets: &mut InfoUpdates)

Called when info rebuild is requested for windows and widgets.

fn update_preview(&mut self)

Called just before update_ui.

fn update_ui(&mut self, update_widgets: &mut WidgetUpdates)

Called just before update.

fn update(&mut self)

Called after every update_ui and info.

fn layout(&mut self, layout_widgets: &mut LayoutUpdates)

Called when layout is requested for windows and widgets.

fn render( &mut self, render_widgets: &mut RenderUpdates, render_update_widgets: &mut RenderUpdates, )

Called when render is requested for windows and widgets.

fn deinit(&mut self)

Called when the application is exiting.

fn boxed(self) -> Box<dyn AppExtensionBoxed>

where Self: Sized,

Gets the extension boxed.

impl Default for KeyboardManager

fn default() -> KeyboardManager

Returns the “default value” for a type.