Dart Documentationbot_htmlHtmlView

HtmlView abstract class

abstract class HtmlView {
  final DivElement _node;
  bool _dirty;

  HtmlView(this._node) {
    requireArgumentNotNull(this._node, 'node');
    _dirty = true;
  }

  DivElement get node => _node;

  void markDirty() {
    _dirty = true;
  }

  void draw() {
    if(_dirty) {
      updateElement();
      _dirty = false;
    }
  }

  abstract void updateElement();
}

Constructors

new HtmlView(DivElement _node) #

HtmlView(this._node) {
  requireArgumentNotNull(this._node, 'node');
  _dirty = true;
}

Properties

final DivElement node #

DivElement get node => _node;

final Type runtimeType #

inherited from Object

A representation of the runtime type of the object.

external Type get runtimeType;

Operators

bool operator ==(other) #

inherited from Object

The equality operator.

The default behavior for all Objects is to return true if and only if this and other are the same object.

If a subclass overrides the equality operator it should override the hashCode method as well to maintain consistency.

bool operator ==(other) => identical(this, other);

Methods

void draw() #

void draw() {
  if(_dirty) {
    updateElement();
    _dirty = false;
  }
}

int hashCode() #

inherited from Object

Get a hash code for this object.

All objects have hash codes. Hash codes are guaranteed to be the same for objects that are equal when compared using the equality operator ==. Other than that there are no guarantees about the hash codes. They will not be consistent between runs and there are no distribution guarantees.

If a subclass overrides hashCode it should override the equality operator as well to maintain consistency.

external int hashCode();

new HtmlView(DivElement _node) #

HtmlView(this._node) {
  requireArgumentNotNull(this._node, 'node');
  _dirty = true;
}

void markDirty() #

void markDirty() {
  _dirty = true;
}

noSuchMethod(String name, List args) #

inherited from Object

noSuchMethod is invoked when users invoke a non-existant method on an object. The name of the method and the arguments of the invocation are passed to noSuchMethod. If noSuchMethod returns a value, that value becomes the result of the original invocation.

The default behavior of noSuchMethod is to throw a noSuchMethodError.

external Dynamic noSuchMethod(String name, List args);

const Object() #

inherited from Object

Creates a new Object instance.

Object instances have no meaningful state, and are only useful through their identity. An Object instance is equal to itself only.

const Object();

String toString() #

inherited from Object

Returns a string representation of this object.

external String toString();

abstract void updateElement() #