kvision / pl.treksoft.kvision.html / Canvas

Canvas

open class Canvas : Widget

Canvas component.

Constructors

Canvas(canvasWidth: Int? = null, canvasHeight: Int? = null, classes: Set<String> = setOf())

Properties

canvasHeight	`var canvasHeight: Int?` The height of the canvas.
canvasWidth	`var canvasWidth: Int?` The width of the canvas.
context2D	`lateinit var context2D: <ERROR CLASS>` The canvas rendering context.

Inherited Properties

draggable	`var draggable: Boolean?` Determines if the current widget is draggable.
eventTarget	`var eventTarget: Widget?`
id	`var id: String?` An ID attribute of generated HTML element.
lastLanguage	`var lastLanguage: String?`
parent	`open var parent: Container?` Parent of the current component.
role	`var role: String?` A role attribute of generated HTML element.
surroundingSpan	`var surroundingSpan: Boolean`
title	`var title: String?` A title attribute of generated HTML element.
visible	`open var visible: Boolean` Visibility state of the current component.

Functions

afterInsert	`open fun afterInsert(node: VNode): Unit` Method called after inserting Snabbdom vnode into the DOM.
getSnAttrs	`open fun getSnAttrs(): List<StringPair>` Returns list of element attributes in the form of a List.
render	`open fun render(): VNode` Renders current component as a Snabbdom vnode.

Inherited Functions

addCssClass	`open fun addCssClass(css: String): Widget` Adds given value to the set of CSS classes generated in html code of current component.
addSurroundingCssClass	`open fun addSurroundingCssClass(css: String): Widget` Adds given value to the set of CSS classes generated in html code of parent component.
afterCreate	`open fun afterCreate(node: VNode): Unit` Method called after creating Snabbdom vnode.
afterDestroy	`open fun afterDestroy(): Unit` Method called after destroying Snabbdom vnode.
afterPostpatch	`open fun afterPostpatch(node: VNode): Unit` Method called after updating Snabbdom vnode.
clearDragDropData	`open fun clearDragDropData(): Unit` Clears D&D data for the current widget. It also makes it not draggable.
dispatchEvent	`open fun dispatchEvent(type: String, eventInitDict: CustomEventInit): Boolean?`
getElement	`open fun getElement(): Node?` Returns DOM element bound to the current component.
getElementJQuery	`open fun getElementJQuery(): JQuery?` Returns JQuery element bound to the current component.
getElementJQueryD	`open fun getElementJQueryD(): dynamic` Returns JQuery element bound to the current component as a dynamic type.
getSnClass	`open fun getSnClass(): List<StringBoolPair>` Returns list of CSS class names for current widget in the form of a List.
getSnHooks	`open fun getSnHooks(): Hooks?` Returns list of hooks in the form of a Snabbdom Hooks object.
getSnOn	`open fun getSnOn(): On?` Returns list of event handlers in the form of a Snabbdom On object.
hide	`open fun hide(): Widget` Makes current widget invisible.
removeCssClass	`open fun removeCssClass(css: String): Widget` Removes given value from the set of CSS classes generated in html code of current component.
removeEventListeners	`open fun removeEventListeners(): Widget` Removes all event listeners from current widget.
removeSurroundingCssClass	`open fun removeSurroundingCssClass(css: String): Widget` Removes given value from the set of CSS classes generated in html code of parent component.
render	`open fun render(elementName: String): VNode` `open fun render(elementName: String, children: Array<dynamic>): VNode` Renders current component as a Snabbdom vnode.
setContextMenu	`open fun setContextMenu(contextMenu: ContextMenu): Widget` Sets context menu for the current widget.
setDragDropData	`open fun setDragDropData(format: String, data: String): Unit` Sets D&D data for the current widget. It also makes it draggable.
setDropTarget	`open fun setDropTarget(format: String, callback: (DragEvent) -> Unit): Unit` `open fun setDropTarget(formats: Set<String>? = null, callback: (DragEvent) -> Unit): Unit` Sets the current widget as a D&D drop target.
setDropTargetData	`open fun setDropTargetData(format: String, callback: (String?) -> Unit): Unit` Sets the current widget as a D&D drop target with helper callback accepting String data.
setEventListener	`open fun <T : Widget> setEventListener(block: SnOn<T>.() -> Unit): Widget` Sets an event listener for current widget, keeping the actual type of component. `open fun setEventListener(block: SnOn<Widget>.() -> Unit): Widget` Sets an event listener for current widget.
show	`open fun show(): Widget` Makes current widget visible.
toggleVisible	`open fun toggleVisible(): Widget` Toggles visibility of current widget.
translate	`fun translate(text: String?): String?`

Companion Object Functions

canvas

fun Container.canvas(canvasWidth: Int? = null, canvasHeight: Int? = null, classes: Set<String> = setOf(), init: Canvas.() -> Unit = null): Canvas

DSL builder extension function.