Trait View

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pub trait View {
Show 29 methods    // Required method
    fn body(&self) -> impl View + 'static;

    // Provided methods
    fn layout_style_ctx(&self, _rt: &Runtime, _el: ElementId) -> LayoutStyle { ... }
    fn accessibility(&self) -> Option<Accessible> { ... }
    fn arrange_override(
        &self,
        _rt: &Runtime,
        _el: ElementId,
        _rect: Rect,
        _ctx: &mut LayoutCtx<'_>,
    ) -> bool { ... }
    fn clip_self(&self) -> bool { ... }
    fn clip_radius(&self) -> f32 { ... }
    fn paint_opacity(&self) -> Option<f32> { ... }
    fn cache_layer(&self) -> bool { ... }
    fn paint_opacity_ctx(&self, _rt: &Runtime, _el: ElementId) -> Option<f32> { ... }
    fn paint_offset(&self) -> Vec2 { ... }
    fn paint_offset_ctx(&self, _rt: &Runtime, _el: ElementId) -> Vec2 { ... }
    fn paint_scale(&self) -> f32 { ... }
    fn paint_scale_ctx(&self, _rt: &Runtime, _el: ElementId) -> f32 { ... }
    fn paint_rotation(&self) -> f32 { ... }
    fn paint_rotation_ctx(&self, _rt: &Runtime, _el: ElementId) -> f32 { ... }
    fn foreground_filter(&self) -> Option<Filter> { ... }
    fn captures_pointer_ctx(&self, _rt: &Runtime, _el: ElementId) -> bool { ... }
    fn reuse_state(&self, _old: &Self) { ... }
    fn hit_testable(&self) -> bool { ... }
    fn test_id(&self) -> Option<String> { ... }
    fn focus_trap(&self) -> bool { ... }
    fn accepts_tab(&self) -> bool { ... }
    fn accepts_text_input(&self) -> bool { ... }
    fn paint_foreground(&self, _ctx: &mut PaintCtx<'_>) { ... }
    fn accepts_drop(&self, _payload: &DragPayload) -> bool { ... }
    fn on_drag_over(&self, _pos: DropPosition, _ctx: &mut EventCtx<'_>) { ... }
    fn on_drop(&self, _pos: DropPosition, _ctx: &mut EventCtx<'_>) { ... }
    fn on_drag_start(&self, _ctx: &mut EventCtx<'_>) { ... }
    fn on_drag_end(&self, _end: DragEnd, _ctx: &mut EventCtx<'_>) { ... }
}

Required Methods§

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fn body(&self) -> impl View + 'static

Provided Methods§

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fn layout_style_ctx(&self, _rt: &Runtime, _el: ElementId) -> LayoutStyle

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fn accessibility(&self) -> Option<Accessible>

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fn arrange_override( &self, _rt: &Runtime, _el: ElementId, _rect: Rect, _ctx: &mut LayoutCtx<'_>, ) -> bool

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fn cache_layer(&self) -> bool

Allows the runtime to replay this element’s painted subtree from cache while its element revision and absolute paint context stay unchanged.

Cache hits skip paint_self and paint_foreground, so their side effects must not be required for later frames.

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fn paint_opacity_ctx(&self, _rt: &Runtime, _el: ElementId) -> Option<f32>

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fn paint_offset(&self) -> Vec2

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fn paint_offset_ctx(&self, _rt: &Runtime, _el: ElementId) -> Vec2

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fn paint_scale(&self) -> f32

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fn paint_scale_ctx(&self, _rt: &Runtime, _el: ElementId) -> f32

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fn paint_rotation(&self) -> f32

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fn paint_rotation_ctx(&self, _rt: &Runtime, _el: ElementId) -> f32

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fn foreground_filter(&self) -> Option<Filter>

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fn captures_pointer_ctx(&self, _rt: &Runtime, _el: ElementId) -> bool

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fn reuse_state(&self, _old: &Self)

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fn hit_testable(&self) -> bool

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fn test_id(&self) -> Option<String>

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fn focus_trap(&self) -> bool

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fn accepts_tab(&self) -> bool

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fn accepts_text_input(&self) -> bool

Whether this view edits text when focused.

Hosts use this to keep single-key accelerators (Delete, Backspace, letter keys) from stealing input while a text field or text area has focus. Command shortcuts such as Ctrl+S still fire.

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