Dart Documentationbot_htmlImageLoader

ImageLoader class

class ImageLoader extends ResourceLoader<ImageElement> {
  ImageLoader(Iterable<String> urls) : super(urls);

  void _doLoad(String blobUrl) {
    final img = new ImageElement(blobUrl);
    assert(!img.complete);
    img.on.load.add((args) {
      assert(args.type == 'load');
      _loadResourceSucceed(blobUrl, img);
    });
  }
}

Extends

ResourceLoader<T> > ImageLoader

Constructors

new ImageLoader(Iterable<String> urls) #

ImageLoader(Iterable<String> urls) : super(urls);

Properties

final int completedBytes #

inherited from ResourceLoader
int get completedBytes {
  return _entries.selectNumbers((e) => e.completedBytes).sum();
}

final int completedCount #

inherited from ResourceLoader
int get completedCount => _entries.count((e) => e.completed);

final EventRoot loaded #

inherited from ResourceLoader
EventRoot get loaded => _loadedEvent;

final EventRoot progress #

inherited from ResourceLoader
EventRoot get progress => _progressEvent;

final Type runtimeType #

inherited from Object

A representation of the runtime type of the object.

external Type get runtimeType;

final String state #

inherited from ResourceLoader
String get state => _state;

final int totalBytes #

inherited from ResourceLoader
int get totalBytes {
  return _entries.selectNumbers((e) {
    if(e.totalBytes == null) {
      return _defaultSize;
    } else {
      return e.totalBytes;
    }
  }).sum();
}

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

T getResource(String url) #

inherited from ResourceLoader
T getResource(String url) => _getByUrl(url).resource;

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 ImageLoader(Iterable<String> urls) #

ImageLoader(Iterable<String> urls) : super(urls);

void load() #

inherited from ResourceLoader
void load() {
  assert(_state == StateUnloaded);
  _state = StateLoading;
  for(final e in _entries) {
    _httpLoad(e.url);
  }
}

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();

new ResourceLoader(Iterable<String> urlList) #

inherited from ResourceLoader
ResourceLoader(Iterable<String> urlList) :
  _entries = _buildRORE(urlList);

String toString() #

inherited from Object

Returns a string representation of this object.

external String toString();