Struct FocusScope

#[repr(C)]
pub struct FocusScope {
    pub enabled: Property<bool>,
    pub has_focus: Property<bool>,
    pub key_pressed: Callback<KeyEventArg, EventResult>,
    pub key_released: Callback<KeyEventArg, EventResult>,
    pub focus_changed_event: Callback<VoidArg>,
    pub cached_rendering_data: CachedRenderingData,
}

A runtime item that exposes key

Fields

enabled: Property<bool>

has_focus: Property<bool>

key_pressed: Callback<KeyEventArg, EventResult>

key_released: Callback<KeyEventArg, EventResult>

focus_changed_event: Callback<VoidArg>

cached_rendering_data: CachedRenderingData

FIXME: remove this

Implementations

impl FocusScope

pub const FIELD_OFFSETS: FocusScopeFieldsOffsets

Return a struct containing the offset of for the fields of this struct

impl FocusScope

pub fn enabled(self: Pin<&Self>) -> bool

pub fn has_focus(self: Pin<&Self>) -> bool

Trait Implementations

impl Default for FocusScope

fn default() -> FocusScope

Returns the “default value” for a type.

impl HasStaticVTable<ItemVTable> for FocusScope

fn static_vtable() -> &'static ItemVTable

Safety: must be a valid VTable for Self

impl Item for FocusScope

fn init(self: Pin<&Self>, _self_rc: &ItemRc)

This function is called by the run-time after the memory for the item has been allocated and initialized. It will be called before any user specified bindings are set.

fn layout_info( self: Pin<&Self>, _orientation: Orientation, _window_adapter: &Rc<dyn WindowAdapter>, ) -> LayoutInfo

We would need max/min/preferred size, and all layout info

fn input_event_filter_before_children( self: Pin<&Self>, _: MouseEvent, _window_adapter: &Rc<dyn WindowAdapter>, _self_rc: &ItemRc, ) -> InputEventFilterResult

Event handler for mouse and touch event. This function is called before being called on children. Then, depending on the return value, it is called for the children, and their children, then Self::input_event is called on the children, and finally Self::input_event is called on this item again.

fn input_event( self: Pin<&Self>, event: MouseEvent, window_adapter: &Rc<dyn WindowAdapter>, self_rc: &ItemRc, ) -> InputEventResult

Handle input event for mouse and touch event

fn key_event( self: Pin<&Self>, event: &KeyEvent, _window_adapter: &Rc<dyn WindowAdapter>, _self_rc: &ItemRc, ) -> KeyEventResult

fn focus_event( self: Pin<&Self>, event: &FocusEvent, _window_adapter: &Rc<dyn WindowAdapter>, _self_rc: &ItemRc, ) -> FocusEventResult

fn render( self: Pin<&Self>, _backend: &mut &'_ mut dyn ItemRenderer, _self_rc: &ItemRc, _size: LogicalSize, ) -> RenderingResult

impl ItemConsts for FocusScope

const cached_rendering_data_offset: FieldOffset<FocusScope, CachedRenderingData>

offset in bytes from the *const ItemImpl. isize::MAX means None

impl<'__dummy_lifetime> Unpin for FocusScope

where __MustNotImplUnpin<'__dummy_lifetime>: Unpin,