def.dom

Class HTMLCanvasElement

java.lang.Object

def.js.Object

def.dom.EventTarget

def.dom.Node

def.dom.Element

def.dom.HTMLElement

def.dom.HTMLCanvasElement

public class HTMLCanvasElement
extends HTMLElement

Field Summary

Fields

Modifier and Type	Field and Description
double	height Gets or sets the height of a canvas element on a document.
static HTMLCanvasElement	prototype
double	width Gets or sets the width of a canvas element on a document.

Fields inherited from class def.dom.HTMLElement

accessKey, children, className, contentEditable, dataset, dir, draggable, hidden, hideFocus, id, innerHTML, innerText, isContentEditable, lang, offsetHeight, offsetLeft, offsetParent, offsetTop, offsetWidth, onabort, onactivate, onbeforeactivate, onbeforecopy, onbeforecut, onbeforedeactivate, onbeforepaste, onblur, oncanplay, oncanplaythrough, onchange, onclick, oncontextmenu, oncopy, oncuechange, oncut, ondblclick, ondeactivate, ondrag, ondragend, ondragenter, ondragleave, ondragover, ondragstart, ondrop, ondurationchange, onemptied, onended, onerror, onfocus, oninput, onkeydown, onkeypress, onkeyup, onload, onloadeddata, onloadedmetadata, onloadstart, onmousedown, onmouseenter, onmouseleave, onmousemove, onmouseout, onmouseover, onmouseup, onmousewheel, onmscontentzoom, onmsmanipulationstatechanged, onpaste, onpause, onplay, onplaying, onprogress, onratechange, onreset, onscroll, onseeked, onseeking, onselect, onselectstart, onstalled, onsubmit, onsuspend, ontimeupdate, onvolumechange, onwaiting, outerHTML, outerText, spellcheck, style, tabIndex, title

Fields inherited from class def.dom.Element

childElementCount, classList, clientHeight, clientLeft, clientTop, clientWidth, firstElementChild, lastElementChild, msContentZoomFactor, msRegionOverflow, nextElementSibling, onariarequest, oncommand, ongotpointercapture, onlostpointercapture, onmsgesturechange, onmsgesturedoubletap, onmsgestureend, onmsgesturehold, onmsgesturestart, onmsgesturetap, onmsgotpointercapture, onmsinertiastart, onmslostpointercapture, onmspointercancel, onmspointerdown, onmspointerenter, onmspointerleave, onmspointermove, onmspointerout, onmspointerover, onmspointerup, onpointercancel, onpointerdown, onpointerenter, onpointerleave, onpointermove, onpointerout, onpointerover, onpointerup, ontouchcancel, ontouchend, ontouchmove, ontouchstart, onwebkitfullscreenchange, onwebkitfullscreenerror, onwheel, previousElementSibling, scrollHeight, scrollLeft, scrollTop, scrollWidth, tagName

Fields inherited from class def.dom.Node

ATTRIBUTE_NODE, attributes, baseURI, CDATA_SECTION_NODE, childNodes, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_POSITION_CONTAINED_BY, DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_PRECEDING, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, firstChild, lastChild, localName, namespaceURI, nextSibling, nodeName, nodeType, nodeValue, NOTATION_NODE, ownerDocument, parentElement, parentNode, prefix, previousSibling, PROCESSING_INSTRUCTION_NODE, TEXT_NODE, textContent

Fields inherited from class def.js.Object

constructor

Constructor Summary

Constructors

Constructor and Description
HTMLCanvasElement()

Method Summary

Modifier and Type	Method and Description
Union<CanvasRenderingContext2D,WebGLRenderingContext>	getContext(String contextId, Object... args)
CanvasRenderingContext2D	getContext(StringTypes._2d contextId) Returns an object that provides methods and properties for drawing and manipulating images and graphics on a canvas element in a document.
WebGLRenderingContext	getContext(StringTypes.experimental_webgl contextId)
Blob	msToBlob() Returns a blob object encoded as a Portable Network Graphics (PNG) format from a canvas image or drawing.
String	toDataURL() Returns the content of the current canvas as an image that you can use as a source for another canvas or an HTML element.
String	toDataURL(String type, Object... args) Returns the content of the current canvas as an image that you can use as a source for another canvas or an HTML element.

Methods inherited from class def.dom.HTMLElement

addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, addEventListener, blur, click, contains, dragDrop, focus, getElementsByClassName, insertAdjacentElement, insertAdjacentHTML, insertAdjacentText, msGetInputContext, scrollIntoView, scrollIntoView, setActive

Methods inherited from class def.dom.Element

getAttribute, getAttribute, getAttributeNode, getAttributeNodeNS, getAttributeNS, getBoundingClientRect, getClientRects, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagName, getElementsByTagNameNS, hasAttribute, hasAttributeNS, msGetRegionContent, msGetUntransformedBounds, msMatchesSelector, msReleasePointerCapture, msSetPointerCapture, msZoomTo, querySelector, querySelectorAll, releasePointerCapture, remove, removeAttribute, removeAttribute, removeAttributeNode, removeAttributeNS, requestFullscreen, requestPointerLock, setAttribute, setAttribute, setAttribute, setAttributeNode, setAttributeNodeNS, setAttributeNS, setPointerCapture, webkitMatchesSelector, webkitRequestFullscreen, webkitRequestFullScreen

Methods inherited from class def.dom.Node

appendChild, cloneNode, cloneNode, compareDocumentPosition, hasAttributes, hasChildNodes, insertBefore, insertBefore, isDefaultNamespace, isEqualNode, isSameNode, lookupNamespaceURI, lookupPrefix, normalize, removeChild, replaceChild

Methods inherited from class def.dom.EventTarget

dispatchEvent, removeEventListener, removeEventListener, removeEventListener, removeEventListener

Methods inherited from class def.js.Object

$applyStatic, $applyStatic, $delete, $delete, $get, $get, $set, $set, $super, assign, create, create, defineProperties, defineProperty, defineProperty, freeze, getOwnPropertyDescriptor, getOwnPropertyNames, getPrototypeOf, hasOwnProperty, hasOwnProperty, hasOwnProperty, isExtensible, isFrozen, isPrototypeOf, isSealed, keys, preventExtensions, propertyIsEnumerable, propertyIsEnumerable, propertyIsEnumerable, seal, toJSString, toLocaleString, toString, valueOf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

height

public double height

Gets or sets the height of a canvas element on a document.

width

public double width

Gets or sets the width of a canvas element on a document.

prototype

public static HTMLCanvasElement prototype

Constructor Detail

HTMLCanvasElement

public HTMLCanvasElement()

Method Detail

getContext

public CanvasRenderingContext2D getContext(StringTypes._2d contextId)

Returns an object that provides methods and properties for drawing and manipulating images and graphics on a canvas element in a document. A context object includes information about colors, line widths, fonts, and other graphic parameters that can be drawn on a canvas.

Parameters:

contextId - The identifier (ID) of the type of canvas to create. Internet Explorer 9 and Internet Explorer 10 support only a 2-D context using canvas.getContext("2d"); IE11 Preview also supports 3-D or WebGL context using canvas.getContext("experimental-webgl");

getContext

public WebGLRenderingContext getContext(StringTypes.experimental_webgl contextId)

getContext

public Union<CanvasRenderingContext2D,WebGLRenderingContext> getContext(String contextId,
                                                                        Object... args)

msToBlob

public Blob msToBlob()

Returns a blob object encoded as a Portable Network Graphics (PNG) format from a canvas image or drawing.

toDataURL

public String toDataURL(String type,
                        Object... args)

Returns the content of the current canvas as an image that you can use as a source for another canvas or an HTML element.

Parameters:

type - The standard MIME type for the image format to return. If you do not specify this parameter, the default value is a PNG format image.

toDataURL

public String toDataURL()

Returns the content of the current canvas as an image that you can use as a source for another canvas or an HTML element.

Parameters:

type - The standard MIME type for the image format to return. If you do not specify this parameter, the default value is a PNG format image.