Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase Class Reference

Provides the shared DOM input surface used by Gondwana's Blazor bitmap and GPU render components. More...

Inheritance diagram for Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase:

Public Member Functions
void	Dispose ()
	Releases resources owned by the concrete render surface component.

Protected Member Functions
override void	OnParametersSet ()
void	HandleKeyDown (KeyboardEventArgs e)
	Forwards a browser key-down event to registered input adapters.
void	HandleKeyUp (KeyboardEventArgs e)
	Forwards a browser key-up event to registered input adapters.
void	HandleMouseMove (MouseEventArgs e)
	Forwards a browser mouse-move event to registered input adapters.
void	HandleMouseDown (MouseEventArgs e)
	Forwards a browser mouse-down event to registered input adapters.
void	HandleMouseUp (MouseEventArgs e)
	Forwards a browser mouse-up event to registered input adapters.
void	HandleWheel (WheelEventArgs e)
	Forwards a browser wheel event to registered input adapters.
Task	HandleTouchStart (TouchEventArgs e)
	Forwards a browser touch-start event to registered input adapters.
Task	HandleTouchMove (TouchEventArgs e)
	Forwards a browser touch-move event to registered input adapters.
Task	HandleTouchEnd (TouchEventArgs e)
	Forwards a browser touch-end event to registered input adapters.
void	HandleTouchCancel (TouchEventArgs e)
	Forwards a browser touch-cancel event to registered input adapters.

Properties
Dictionary< string, object >?	AdditionalAttributes [get, set]
	Gets or sets additional attributes applied to the underlying HTML canvas element.
IReadOnlyDictionary< string, object >?	CanvasAttributes [get]
	Gets the canvas attributes with the component-owned style attribute removed.
string	CanvasStyle = DefaultCanvasStyle [get]
	Gets the effective canvas style, including Gondwana's required defaults.

Detailed Description

Provides the shared DOM input surface used by Gondwana's Blazor bitmap and GPU render components.

The concrete render components intentionally use different presentation strategies, but both expose the same keyboard, mouse, and touch event source to the Blazor input adapters.

Definition at line 14 of file BlazorRenderSurfaceComponentBase.cs.

Member Function Documentation

Dispose()

void Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.Dispose ( )

abstract

Releases resources owned by the concrete render surface component.

HandleKeyDown()

void Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.HandleKeyDown ( KeyboardEventArgs e )

protected

Forwards a browser key-down event to registered input adapters.

Parameters

e	The event data.

HandleKeyUp()

void Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.HandleKeyUp ( KeyboardEventArgs e )

protected

Forwards a browser key-up event to registered input adapters.

Parameters

e	The event data.

HandleMouseDown()

void Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.HandleMouseDown ( MouseEventArgs e )

protected

Forwards a browser mouse-down event to registered input adapters.

Parameters

e	The event data.

HandleMouseMove()

void Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.HandleMouseMove ( MouseEventArgs e )

protected

Forwards a browser mouse-move event to registered input adapters.

Parameters

e	The event data.

HandleMouseUp()

void Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.HandleMouseUp ( MouseEventArgs e )

protected

Forwards a browser mouse-up event to registered input adapters.

Parameters

e	The event data.

HandleTouchCancel()

void Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.HandleTouchCancel ( TouchEventArgs e )

protected

Forwards a browser touch-cancel event to registered input adapters.

Parameters

e	The event data.

HandleTouchEnd()

Task Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.HandleTouchEnd ( TouchEventArgs e )

protected

Forwards a browser touch-end event to registered input adapters.

Parameters

e	The event data.

Returns

A task that represents completion of the operation.

HandleTouchMove()

Task Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.HandleTouchMove ( TouchEventArgs e )

protected

Forwards a browser touch-move event to registered input adapters.

Parameters

e	The event data.

Returns

A task that represents completion of the operation.

HandleTouchStart()

Task Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.HandleTouchStart ( TouchEventArgs e )

protected

Forwards a browser touch-start event to registered input adapters.

Parameters

e	The event data.

Returns

A task that represents completion of the operation.

HandleWheel()

void Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.HandleWheel ( WheelEventArgs e )

protected

Forwards a browser wheel event to registered input adapters.

Parameters

e	The event data.

OnParametersSet()

override void Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.OnParametersSet ( )

protected

Definition at line 53 of file BlazorRenderSurfaceComponentBase.cs.

Property Documentation

AdditionalAttributes

Dictionary<string, object>? Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.AdditionalAttributes

getset

Gets or sets additional attributes applied to the underlying HTML canvas element.

Definition at line 40 of file BlazorRenderSurfaceComponentBase.cs.

CanvasAttributes

IReadOnlyDictionary<string, object>? Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.CanvasAttributes

getprotected

Gets the canvas attributes with the component-owned style attribute removed.

Definition at line 45 of file BlazorRenderSurfaceComponentBase.cs.

CanvasStyle

string Gondwana.Blazor.Rendering.BlazorRenderSurfaceComponentBase.CanvasStyle = DefaultCanvasStyle

getprotected

Gets the effective canvas style, including Gondwana's required defaults.

Definition at line 50 of file BlazorRenderSurfaceComponentBase.cs.