Struct TopLevelImpl 

pub struct TopLevelImpl { /* private fields */ }

The state and behaviour every top-level of this backend shares.

Deviation (DEVIATIONS.md, Native backend): in the reference the top-level is its own software (framebuffer) render surface. Here that is TopLevelFramebufferSurface: a render surface is shared with the thread that renders, and the top-level is an object of the UI thread.

Implementations

impl TopLevelImpl

pub fn input_method(&self) -> Option<Rc<FerroNativeTextInputMethod>>

The text input method of the top-level.

pub fn desktop_scaling(&self) -> f64

pub fn native(&self) -> Option<ComPtr<IFrnTopLevel>>

The native top-level; None once it is disposed.

pub fn mac_os_handle(&self) -> Option<Rc<MacOSTopLevelHandle>>

The platform handle with its concrete type.

pub fn handle(&self) -> Option<Rc<dyn IPlatformHandle>>

pub fn client_size(&self) -> Size

pub fn render_scaling(&self) -> f64

pub fn surfaces(&self) -> Vec<Arc<dyn IPlatformRenderSurface>>

pub fn render_surfaces( &self, ) -> Arc<dyn Fn() -> Vec<Arc<dyn IPlatformRenderSurface>> + Send + Sync>

The surfaces as the thread that renders asks for them: the function reads the cell the top-level publishes its surfaces in, and never reaches the top-level itself.

Deviation (DEVIATIONS.md, Native backend): Surfaces of the reference keeps returning the surfaces of a disposed top-level, whose native object then fails every call. Here the surfaces are gone once the top-level is disposed: they gave their native top-level back on the UI thread, and a render target can no longer be created for them.

pub fn transparency_level(&self) -> WindowTransparencyLevel

pub fn acrylic_compensation_levels(&self) -> AcrylicPlatformCompensationLevels

pub fn get_automation_peer(&self) -> Option<Ref<AutomationPeer>>

The automation peer of the focus root of the top-level, if it is a control.

pub fn raw_text_input_event(&self, time_stamp: u64, text: &str) -> bool

pub fn raw_key_event( &self, type_: FrnRawKeyEventType, time_stamp: u64, modifiers: FrnInputModifiers, key: FrnKey, physical_key: FrnPhysicalKey, key_symbol: Option<String>, ) -> bool

pub fn invalidate(&self)

pub fn set_input_root(&self, input_root: Rc<dyn IInputRoot>)

pub fn point_to_client(&self, point: PixelPoint) -> Point

pub fn point_to_screen(&self, point: Point) -> PixelPoint

pub fn set_cursor(&self, cursor: Option<Rc<dyn ICursorImpl>>)

pub fn set_transparency_level_hint( &self, transparency_levels: &[WindowTransparencyLevel], )

pub fn try_get_feature(&self, feature_type: TypeId) -> Option<Rc<dyn Any>>

The optional features of every top-level of this backend.

The features whose contracts are not ported yet (native control host, launcher) are absent.

pub fn native_control_host(&self) -> Option<Rc<dyn INativeControlHostImpl>>

The host of native controls of the top-level; None once it is disposed.

impl TopLevelImpl

pub fn input(&self) -> Option<Rc<dyn Fn(Rc<dyn IRawInputEventArgs>)>>

pub fn set_input(&self, value: Option<Rc<dyn Fn(Rc<dyn IRawInputEventArgs>)>>)

pub fn paint(&self) -> Option<Rc<dyn Fn(Rect)>>

pub fn set_paint(&self, value: Option<Rc<dyn Fn(Rect)>>)

pub fn resized(&self) -> Option<Rc<dyn Fn(Size, WindowResizeReason)>>

pub fn set_resized(&self, value: Option<Rc<dyn Fn(Size, WindowResizeReason)>>)

pub fn scaling_changed(&self) -> Option<Rc<dyn Fn(f64)>>

pub fn set_scaling_changed(&self, value: Option<Rc<dyn Fn(f64)>>)

pub fn transparency_level_changed( &self, ) -> Option<Rc<dyn Fn(WindowTransparencyLevel)>>

pub fn set_transparency_level_changed( &self, value: Option<Rc<dyn Fn(WindowTransparencyLevel)>>, )

pub fn closed(&self) -> Option<Rc<dyn Fn()>>

pub fn set_closed(&self, value: Option<Rc<dyn Fn()>>)

pub fn lost_focus(&self) -> Option<Rc<dyn Fn()>>

pub fn set_lost_focus(&self, value: Option<Rc<dyn Fn()>>)