MetaElement class Null safety

Inheritance
Annotations
  • @Native("HTMLMetaElement")

Constructors

MetaElement()
factory
MetaElement.created()
Constructor instantiated by the DOM when a custom element has been created. [...]

Properties

accessibleNode → AccessibleNode?
read-only, inherited
assignedSlot → SlotElement?
read-only, inherited
attributes ↔ Map<String, String>
All attributes on this element. [...]
read / write, inherited
baseUri → String?
@JSName('baseURI'), read-only, inherited
borderEdge → CssRect
Access the dimensions and position of this element's content + padding + border box. [...]
read-only, inherited
childNodes → List<Node>
A list of this node's children. [...]
@Returns('NodeList'), @Creates('NodeList'), read-only, inherited
children ↔ List<Element>
List of the direct children of this element. [...]
read / write, inherited
classes ↔ CssClassSet
The set of CSS classes applied to this element. [...]
read / write, inherited
className ↔ String
read / write, inherited
client → Rectangle<num>
Gets the position of this element relative to the client area of the page.
read-only, inherited
clientHeight → int
read-only, inherited
clientLeft → int?
read-only, inherited
clientTop → int?
read-only, inherited
clientWidth → int
read-only, inherited
computedName → String?
read-only, inherited
computedRole → String?
read-only, inherited
content ↔ String
read / write
contentEdge → CssRect
Access this element's content position. [...]
read-only, inherited
contentEditable ↔ String
read / write, inherited
dataset ↔ Map<String, String>
Allows access to all custom data attributes (data-*) set on this element. [...]
read / write, inherited
dir ↔ String?
read / write, inherited
documentOffset → Point<num>
Provides the coordinates of the element relative to the top of the document. [...]
read-only, inherited
draggable ↔ bool
Indicates whether the element can be dragged and dropped. [...]
read / write, inherited
firstChild → Node?
The first child of this node. [...]
read-only, inherited
hashCode → int
The hash code for this object. [...]
read-only, inherited
hidden ↔ bool
Indicates whether the element is not relevant to the page's current state. [...]
read / write, inherited
httpEquiv ↔ String?
read / write
id ↔ String
read / write, inherited
inert ↔ bool?
read / write, inherited
innerHtml ↔ String?
Parses the HTML fragment and sets it as the contents of this element.
read / write, inherited
innerText ↔ String
@JSName('innerText'), read / write, inherited
inputMode ↔ String?
read / write, inherited
isConnected → bool?
read-only, inherited
isContentEditable → bool?
read-only, inherited
lang ↔ String?
read / write, inherited
lastChild → Node?
The last child of this node. [...]
read-only, inherited
localName → String
@Returns('String'), read-only, inherited
marginEdge → CssRect
Access the dimensions and position of this element's content + padding + border + margin box. [...]
read-only, inherited
name ↔ String
read / write
namespaceUri → String?
A URI that identifies the XML namespace of this element. [...]
read-only, inherited
nextElementSibling → Element?
read-only, inherited
nextNode → Node?
The next sibling node. [...]
@JSName('nextSibling'), read-only, inherited
nodeName → String?
The name of this node. [...]
read-only, inherited
nodes ↔ List<Node>
A modifiable list of this node's children.
read / write, inherited
nodeType → int
The type of node. [...]
read-only, inherited
nodeValue → String?
The value of this node. [...]
read-only, inherited
nonce ↔ String?
read / write, inherited
offset → Rectangle<num>
Gets the offset of this element relative to its offsetParent.
read-only, inherited
offsetHeight → int
read-only, inherited
offsetLeft → int
read-only, inherited
offsetParent → Element?
read-only, inherited
offsetTop → int
read-only, inherited
offsetWidth → int
read-only, inherited
on → ElementEvents
This is an ease-of-use accessor for event streams which should only be used when an explicit accessor is not available.
read-only, inherited
onAbort → ElementStream<Event>
Stream of abort events handled by this Element.
read-only, inherited
onBeforeCopy → ElementStream<Event>
Stream of beforecopy events handled by this Element.
read-only, inherited
onBeforeCut → ElementStream<Event>
Stream of beforecut events handled by this Element.
read-only, inherited
onBeforePaste → ElementStream<Event>
Stream of beforepaste events handled by this Element.
read-only, inherited
onBlur → ElementStream<Event>
Stream of blur events handled by this Element.
read-only, inherited
onCanPlay → ElementStream<Event>
read-only, inherited
onCanPlayThrough → ElementStream<Event>
read-only, inherited
onChange → ElementStream<Event>
Stream of change events handled by this Element.
read-only, inherited
onClick → ElementStream<MouseEvent>
Stream of click events handled by this Element.
read-only, inherited
onContextMenu → ElementStream<MouseEvent>
Stream of contextmenu events handled by this Element.
read-only, inherited
onCopy → ElementStream<ClipboardEvent>
Stream of copy events handled by this Element.
read-only, inherited
onCut → ElementStream<ClipboardEvent>
Stream of cut events handled by this Element.
read-only, inherited
onDoubleClick → ElementStream<Event>
Stream of doubleclick events handled by this Element.
@DomName('Element.ondblclick'), read-only, inherited
onDrag → ElementStream<MouseEvent>
A stream of drag events fired when this element currently being dragged. [...]
read-only, inherited
onDragEnd → ElementStream<MouseEvent>
A stream of dragend events fired when this element completes a drag operation. [...]
read-only, inherited
onDragEnter → ElementStream<MouseEvent>
A stream of dragenter events fired when a dragged object is first dragged over this element. [...]
read-only, inherited
onDragLeave → ElementStream<MouseEvent>
A stream of dragleave events fired when an object being dragged over this element leaves this element's target area. [...]
read-only, inherited
onDragOver → ElementStream<MouseEvent>
A stream of dragover events fired when a dragged object is currently being dragged over this element. [...]
read-only, inherited
onDragStart → ElementStream<MouseEvent>
A stream of dragstart events fired when this element starts being dragged. [...]
read-only, inherited
onDrop → ElementStream<MouseEvent>
A stream of drop events fired when a dragged object is dropped on this element. [...]
read-only, inherited
onDurationChange → ElementStream<Event>
read-only, inherited
onEmptied → ElementStream<Event>
read-only, inherited
onEnded → ElementStream<Event>
read-only, inherited
onError → ElementStream<Event>
Stream of error events handled by this Element.
read-only, inherited
onFocus → ElementStream<Event>
Stream of focus events handled by this Element.
read-only, inherited
onFullscreenChange → ElementStream<Event>
Stream of fullscreenchange events handled by this Element.
read-only, inherited
onFullscreenError → ElementStream<Event>
Stream of fullscreenerror events handled by this Element.
read-only, inherited
onInput → ElementStream<Event>
Stream of input events handled by this Element.
read-only, inherited
onInvalid → ElementStream<Event>
Stream of invalid events handled by this Element.
read-only, inherited
onKeyDown → ElementStream<KeyboardEvent>
Stream of keydown events handled by this Element.
read-only, inherited
onKeyPress → ElementStream<KeyboardEvent>
Stream of keypress events handled by this Element.
read-only, inherited
onKeyUp → ElementStream<KeyboardEvent>
Stream of keyup events handled by this Element.
read-only, inherited
onLoad → ElementStream<Event>
Stream of load events handled by this Element.
read-only, inherited
onLoadedData → ElementStream<Event>
read-only, inherited
onLoadedMetadata → ElementStream<Event>
read-only, inherited
onMouseDown → ElementStream<MouseEvent>
Stream of mousedown events handled by this Element.
read-only, inherited
onMouseEnter → ElementStream<MouseEvent>
Stream of mouseenter events handled by this Element.
read-only, inherited
onMouseLeave → ElementStream<MouseEvent>
Stream of mouseleave events handled by this Element.
read-only, inherited
onMouseMove → ElementStream<MouseEvent>
Stream of mousemove events handled by this Element.
read-only, inherited
onMouseOut → ElementStream<MouseEvent>
Stream of mouseout events handled by this Element.
read-only, inherited
onMouseOver → ElementStream<MouseEvent>
Stream of mouseover events handled by this Element.
read-only, inherited
onMouseUp → ElementStream<MouseEvent>
Stream of mouseup events handled by this Element.
read-only, inherited
onMouseWheel → ElementStream<WheelEvent>
Stream of mousewheel events handled by this Element.
read-only, inherited
onPaste → ElementStream<ClipboardEvent>
Stream of paste events handled by this Element.
read-only, inherited
onPause → ElementStream<Event>
read-only, inherited
onPlay → ElementStream<Event>
read-only, inherited
onPlaying → ElementStream<Event>
read-only, inherited
onRateChange → ElementStream<Event>
read-only, inherited
onReset → ElementStream<Event>
Stream of reset events handled by this Element.
read-only, inherited
onResize → ElementStream<Event>
read-only, inherited
onScroll → ElementStream<Event>
Stream of scroll events handled by this Element.
read-only, inherited
onSearch → ElementStream<Event>
Stream of search events handled by this Element.
read-only, inherited
onSeeked → ElementStream<Event>
read-only, inherited
onSeeking → ElementStream<Event>
read-only, inherited
onSelect → ElementStream<Event>
Stream of select events handled by this Element.
read-only, inherited
onSelectStart → ElementStream<Event>
Stream of selectstart events handled by this Element.
read-only, inherited
onStalled → ElementStream<Event>
read-only, inherited
onSubmit → ElementStream<Event>
Stream of submit events handled by this Element.
read-only, inherited
onSuspend → ElementStream<Event>
read-only, inherited
onTimeUpdate → ElementStream<Event>
read-only, inherited
onTouchCancel → ElementStream<TouchEvent>
Stream of touchcancel events handled by this Element.
read-only, inherited
onTouchEnd → ElementStream<TouchEvent>
Stream of touchend events handled by this Element.
read-only, inherited
onTouchEnter → ElementStream<TouchEvent>
Stream of touchenter events handled by this Element.
read-only, inherited
onTouchLeave → ElementStream<TouchEvent>
Stream of touchleave events handled by this Element.
read-only, inherited
onTouchMove → ElementStream<TouchEvent>
Stream of touchmove events handled by this Element.
read-only, inherited
onTouchStart → ElementStream<TouchEvent>
Stream of touchstart events handled by this Element.
read-only, inherited
onTransitionEnd → ElementStream<TransitionEvent>
Stream of transitionend events handled by this Element.
@SupportedBrowser(SupportedBrowser.CHROME), @SupportedBrowser(SupportedBrowser.FIREFOX), @SupportedBrowser(SupportedBrowser.IE, '10'), @SupportedBrowser(SupportedBrowser.SAFARI), read-only, inherited
onVolumeChange → ElementStream<Event>
read-only, inherited
onWaiting → ElementStream<Event>
read-only, inherited
onWheel → ElementStream<WheelEvent>
read-only, inherited
outerHtml → String?
@JSName('outerHTML'), read-only, inherited
ownerDocument → Document?
The document this node belongs to. [...]
read-only, inherited
paddingEdge → CssRect
Access the dimensions and position of this element's content + padding box. [...]
read-only, inherited
parent → Element?
The parent element of this node. [...]
@JSName('parentElement'), read-only, inherited
parentNode → Node?
The parent node of this node. [...]
read-only, inherited
previousElementSibling → Element?
read-only, inherited
previousNode → Node?
The previous sibling node. [...]
@JSName('previousSibling'), read-only, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited
scrollHeight → int
read-only, inherited
scrollLeft ↔ int
read / write, inherited
scrollTop ↔ int
read / write, inherited
scrollWidth → int
read-only, inherited
shadowRoot → ShadowRoot?
The shadow root of this shadow host. [...]
@SupportedBrowser(SupportedBrowser.CHROME, '25'), read-only, inherited
slot ↔ String?
read / write, inherited
spellcheck ↔ bool?
read / write, inherited
style → CssStyleDeclaration
read-only, inherited
styleMap → StylePropertyMap?
read-only, inherited
tabIndex ↔ int?
read / write, inherited
tagName → String
read-only, inherited
text ↔ String?
All text within this node and its descendents. [...]
@JSName('textContent'), @JSName('textContent'), read / write, inherited
title ↔ String?
read / write, inherited
translate ↔ bool?
Specifies whether this element's text content changes when the page is localized. [...]
read / write, inherited

Methods

addEventListener(String type, EventListener? listener, [bool? useCapture]) → void
inherited
after(Object nodes) → void
inherited
animate(Iterable<Map<String, dynamic>> frames, [dynamic timing]) → Animation
Creates a new AnimationEffect object whose target element is the object on which the method is called, and calls the play() method of the AnimationTimeline object of the document timeline of the node document of the element, passing the newly created AnimationEffect as the argument to the method. Returns an Animation for the effect. [...]
@SupportedBrowser(SupportedBrowser.CHROME, '36'), inherited
append(Node node) → Node
Adds a node to the end of the child nodes list of this node. [...]
@JSName('appendChild'), inherited
appendHtml(String text, {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) → void
Parses the specified text as HTML and adds the resulting node after the last child of this element.
inherited
appendText(String text) → void
Adds the specified text after the last child of this element.
inherited
attached() → void
Called by the DOM when this element has been inserted into the live document. [...]
inherited
attachShadow(Map shadowRootInitDict) → ShadowRoot
inherited
attributeChanged(String name, String oldValue, String newValue) → void
Called by the DOM whenever an attribute on this has been changed.
inherited
before(Object nodes) → void
inherited
blur() → void
inherited
click() → void
inherited
clone(bool? deep) → Node
Returns a copy of this node. [...]
@JSName('cloneNode'), inherited
closest(String selectors) → Element?
inherited
contains(Node? other) → bool
Returns true if this node contains the specified node. [...]
inherited
createFragment(String? html, {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) → DocumentFragment
Create a DocumentFragment from the HTML fragment and ensure that it follows the sanitization rules specified by the validator or treeSanitizer. [...]
inherited
createShadowRoot() → ShadowRoot
Creates a new shadow root for this shadow host. [...]
@SupportedBrowser(SupportedBrowser.CHROME, '25'), inherited
detached() → void
Called by the DOM when this element has been removed from the live document. [...]
inherited
dispatchEvent(Event event) → bool
inherited
enteredView() → void
Deprecated*: override attached instead.
inherited
focus() → void
inherited
getAnimations() → List<Animation>
inherited
getAttribute(String name) → String?
inherited
getAttributeNames() → List<String>
inherited
getAttributeNS(String? namespaceURI, String name) → String?
inherited
getBoundingClientRect() → Rectangle<num>
Returns the smallest bounding rectangle that encompasses this element's padding, scrollbar, and border. [...]
@Creates('_DomRect'), @Returns('_DomRect|Null'), inherited
getClientRects() → List<Rectangle<num>>
inherited
getComputedStyle([String? pseudoElement]) → CssStyleDeclaration
The set of all CSS values applied to this element, including inherited and default values. [...]
inherited
getDestinationInsertionPoints() → List<Node>
Returns a list of shadow DOM insertion points to which this element is distributed. [...]
@Returns('NodeList'), @Creates('NodeList'), inherited
getElementsByClassName(String classNames) → List<Node>
Returns a list of nodes with the given class name inside this element. [...]
@Creates('NodeList|HtmlCollection'), @Returns('NodeList|HtmlCollection'), inherited
getNamespacedAttributes(String namespace) → Map<String, String>
Gets a map for manipulating the attributes of a particular namespace. [...]
inherited
getRootNode([Map? options]) → Node
inherited
hasAttribute(String name) → bool
inherited
hasAttributeNS(String? namespaceURI, String name) → bool
inherited
hasChildNodes() → bool
Returns true if this node has any children. [...]
inherited
hasPointerCapture(int pointerId) → bool
inherited
insertAdjacentElement(String where, Element element) → Element
Inserts element into the DOM at the specified location. [...]
inherited
insertAdjacentHtml(String where, String html, {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) → void
Parses text as an HTML fragment and inserts it into the DOM at the specified location. [...]
inherited
insertAdjacentText(String where, String text) → void
Inserts text into the DOM at the specified location. [...]
inherited
insertAllBefore(Iterable<Node> newNodes, Node refChild) → void
Inserts all of the nodes into this node directly before refChild. [...]
inherited
insertBefore(Node node, Node? child) → Node
Inserts all of the nodes into this node directly before refChild. [...]
inherited
leftView() → void
Deprecated*: override detached instead.
inherited
matches(String selectors) → bool
Checks if this element matches the CSS selectors.
inherited
matchesWithAncestors(String selectors) → bool
Checks if this element or any of its parents match the CSS selectors.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
offsetTo(Element parent) → Point<num>
Provides the offset of this element's borderEdge relative to the specified parent. [...]
inherited
querySelector(String selectors) → Element?
Finds the first descendant element of this element that matches the specified group of selectors. [...]
inherited
querySelectorAll<T extends Element>(String selectors) → ElementList<T>
Finds all descendent elements of this element that match the specified group of selectors. [...]
inherited
releasePointerCapture(int pointerId) → void
inherited
remove() → void
Removes this node from the DOM.
inherited
removeAttribute(String name) → void
inherited
removeAttributeNS(String? namespaceURI, String name) → void
inherited
removeEventListener(String type, EventListener? listener, [bool? useCapture]) → void
inherited
replaceWith(Node otherNode) → Node
Replaces this node with another node.
inherited
requestFullscreen() → void
Displays this element fullscreen. [...]
@JSName('webkitRequestFullscreen'), @SupportedBrowser(SupportedBrowser.CHROME), @SupportedBrowser(SupportedBrowser.SAFARI), inherited
requestPointerLock() → void
inherited
scroll([dynamic options_OR_x, num? y]) → void
inherited
scrollBy([dynamic options_OR_x, num? y]) → void
inherited
scrollIntoView([ScrollAlignment? alignment]) → void
Scrolls this element into view. [...]
inherited
scrollTo([dynamic options_OR_x, num? y]) → void
inherited
setApplyScroll(String nativeScrollBehavior) → Future<ScrollState>
inherited
setAttribute(String name, String value) → void
inherited
setAttributeNS(String? namespaceURI, String name, String value) → void
inherited
setDistributeScroll(String nativeScrollBehavior) → Future<ScrollState>
inherited
setInnerHtml(String? html, {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) → void
Parses the HTML fragment and sets it as the contents of this element. This ensures that the generated content follows the sanitization rules specified by the validator or treeSanitizer. [...]
inherited
setPointerCapture(int pointerId) → void
inherited
toString() → String
The string representation of this element. [...]
inherited

Operators

operator ==(Object other) → bool
The equality operator. [...]
inherited