ApplicationCache

class ApplicationCache extends EventTarget

Annotations: @SupportedBrowser.new(SupportedBrowser.CHROME), @SupportedBrowser.new(SupportedBrowser.FIREFOX), @SupportedBrowser.new(SupportedBrowser.IE, '10'), @SupportedBrowser.new(SupportedBrowser.OPERA), @SupportedBrowser.new(SupportedBrowser.SAFARI), @Unstable.new(), @Native.new("ApplicationCache,DOMApplicationCache,OfflineResourceList")

ApplicationCache is accessed via Window.applicationCache.

Inheritance

Object → EventTarget → ApplicationCache

Properties

hashCode no setter inherited

int get hashCode

Inherited from Interceptor.

Implementation

int get hashCode => Primitives.objectHashCode(this);

on no setter inherited

Events get on

This is an ease-of-use accessor for event streams which should only be used when an explicit accessor is not available.

Inherited from EventTarget.

Implementation

Events get on => new Events(this);

onCached no setter

Stream<Event> get onCached

Stream of cached events handled by this ApplicationCache.

Implementation

Stream<Event> get onCached => cachedEvent.forTarget(this);

onChecking no setter

Stream<Event> get onChecking

Stream of checking events handled by this ApplicationCache.

Implementation

Stream<Event> get onChecking => checkingEvent.forTarget(this);

onDownloading no setter

Stream<Event> get onDownloading

Stream of downloading events handled by this ApplicationCache.

Implementation

Stream<Event> get onDownloading => downloadingEvent.forTarget(this);

onError no setter

Stream<Event> get onError

Stream of error events handled by this ApplicationCache.

Implementation

Stream<Event> get onError => errorEvent.forTarget(this);

onNoUpdate no setter

Stream<Event> get onNoUpdate

Stream of noupdate events handled by this ApplicationCache.

Implementation

Stream<Event> get onNoUpdate => noUpdateEvent.forTarget(this);

onObsolete no setter

Stream<Event> get onObsolete

Stream of obsolete events handled by this ApplicationCache.

Implementation

Stream<Event> get onObsolete => obsoleteEvent.forTarget(this);

onProgress no setter

Stream<ProgressEvent> get onProgress

Stream of progress events handled by this ApplicationCache.

Implementation

Stream<ProgressEvent> get onProgress => progressEvent.forTarget(this);

onUpdateReady no setter

Stream<Event> get onUpdateReady

Stream of updateready events handled by this ApplicationCache.

Implementation

Stream<Event> get onUpdateReady => updateReadyEvent.forTarget(this);

runtimeType no setter inherited

Type get runtimeType

Inherited from Interceptor.

Implementation

Type get runtimeType =>
    getRuntimeTypeOfInterceptorNotArray(getInterceptor(this), this);

status no setter

int? get status

Implementation

int? get status native;

Methods

abort()

void abort()

Implementation

void abort() native;

addEventListener() inherited

void addEventListener(
  String type,
  (dynamic Function(Event event))? listener, [
  bool? useCapture,
])

Inherited from EventTarget.

Implementation

void addEventListener(
  String type,
  EventListener? listener, [
  bool? useCapture,
]) {
  // TODO(leafp): This check is avoid a bug in our dispatch code when
  // listener is null.  The browser treats this call as a no-op in this
  // case, so it's fine to short-circuit it, but we should not have to.
  if (listener != null) {
    _addEventListener(type, listener, useCapture);
  }
}

dispatchEvent() inherited

bool dispatchEvent(Event event)

Inherited from EventTarget.

Implementation

bool dispatchEvent(Event event) native;

noSuchMethod() inherited

dynamic noSuchMethod(Invocation invocation)

Invoked when a nonexistent method or property is accessed.

A dynamic member invocation can attempt to call a member which doesn't exist on the receiving object. Example:

dynamic object = 1;
object.add(42); // Statically allowed, run-time error

This invalid code will invoke the noSuchMethod method of the integer 1 with an Invocation representing the .add(42) call and arguments (which then throws).

Classes can override noSuchMethod to provide custom behavior for such invalid dynamic invocations.

A class with a non-default noSuchMethod invocation can also omit implementations for members of its interface. Example:

class MockList<T> implements List<T> {
  noSuchMethod(Invocation invocation) {
    log(invocation);
    super.noSuchMethod(invocation); // Will throw.
  }
}
void main() {
  MockList().add(42);
}

This code has no compile-time warnings or errors even though the MockList class has no concrete implementation of any of the List interface methods. Calls to List methods are forwarded to noSuchMethod, so this code will log an invocation similar to Invocation.method(#add, [42]) and then throw.

If a value is returned from noSuchMethod, it becomes the result of the original invocation. If the value is not of a type that can be returned by the original invocation, a type error occurs at the invocation.

The default behavior is to throw a NoSuchMethodError.

Inherited from Interceptor.

Implementation

dynamic noSuchMethod(Invocation invocation) {
  throw NoSuchMethodError.withInvocation(this, invocation);
}

removeEventListener() inherited

void removeEventListener(
  String type,
  (dynamic Function(Event event))? listener, [
  bool? useCapture,
])

Inherited from EventTarget.

Implementation

void removeEventListener(
  String type,
  EventListener? listener, [
  bool? useCapture,
]) {
  // TODO(leafp): This check is avoid a bug in our dispatch code when
  // listener is null.  The browser treats this call as a no-op in this
  // case, so it's fine to short-circuit it, but we should not have to.
  if (listener != null) {
    _removeEventListener(type, listener, useCapture);
  }
}

swapCache()

void swapCache()

Implementation

void swapCache() native;

toString() inherited

String toString()

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string representation.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Inherited from Interceptor.

Implementation

String toString() => Primitives.objectToHumanReadableString(this);

update()

void update()

Implementation

void update() native;

Operators

operator ==() inherited

bool operator ==(Object other)

The equality operator.

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

Override this method to specify a different equality relation on a class. The overriding method must still be an equivalence relation. That is, it must be:

• Total: It must return a boolean for all arguments. It should never throw.

• Reflexive: For all objects o, o == o must be true.

• Symmetric: For all objects o1 and o2, o1 == o2 and o2 == o1 must either both be true, or both be false.

• Transitive: For all objects o1, o2, and o3, if o1 == o2 and o2 == o3 are true, then o1 == o3 must be true.

The method should also be consistent over time, so whether two objects are equal should only change if at least one of the objects was modified.

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

Inherited from Interceptor.

Implementation

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

Static Properties

supported no setter

bool get supported

Checks if this type is supported on the current platform.

Implementation

static bool get supported => JS('bool', '!!(window.applicationCache)');

Constants

cachedEvent

const EventStreamProvider<Event> cachedEvent

Static factory designed to expose cached events to event handlers that are not necessarily instances of ApplicationCache.

See EventStreamProvider for usage information.

Implementation

static const EventStreamProvider<Event> cachedEvent =
    const EventStreamProvider<Event>('cached');

CHECKING

const int CHECKING

Implementation

static const int CHECKING = 2;

checkingEvent

const EventStreamProvider<Event> checkingEvent

Static factory designed to expose checking events to event handlers that are not necessarily instances of ApplicationCache.

See EventStreamProvider for usage information.

Implementation

static const EventStreamProvider<Event> checkingEvent =
    const EventStreamProvider<Event>('checking');

DOWNLOADING

const int DOWNLOADING

Implementation

static const int DOWNLOADING = 3;

downloadingEvent

const EventStreamProvider<Event> downloadingEvent

Static factory designed to expose downloading events to event handlers that are not necessarily instances of ApplicationCache.

See EventStreamProvider for usage information.

Implementation

static const EventStreamProvider<Event> downloadingEvent =
    const EventStreamProvider<Event>('downloading');

errorEvent

const EventStreamProvider<Event> errorEvent

Static factory designed to expose error events to event handlers that are not necessarily instances of ApplicationCache.

See EventStreamProvider for usage information.

Implementation

static const EventStreamProvider<Event> errorEvent =
    const EventStreamProvider<Event>('error');

IDLE

const int IDLE

Implementation

static const int IDLE = 1;

noUpdateEvent

const EventStreamProvider<Event> noUpdateEvent

Static factory designed to expose noupdate events to event handlers that are not necessarily instances of ApplicationCache.

See EventStreamProvider for usage information.

Implementation

static const EventStreamProvider<Event> noUpdateEvent =
    const EventStreamProvider<Event>('noupdate');

OBSOLETE

const int OBSOLETE

Implementation

static const int OBSOLETE = 5;

obsoleteEvent

const EventStreamProvider<Event> obsoleteEvent

Static factory designed to expose obsolete events to event handlers that are not necessarily instances of ApplicationCache.

See EventStreamProvider for usage information.

Implementation

static const EventStreamProvider<Event> obsoleteEvent =
    const EventStreamProvider<Event>('obsolete');

progressEvent

const EventStreamProvider<ProgressEvent> progressEvent

Static factory designed to expose progress events to event handlers that are not necessarily instances of ApplicationCache.

See EventStreamProvider for usage information.

Implementation

static const EventStreamProvider<ProgressEvent> progressEvent =
    const EventStreamProvider<ProgressEvent>('progress');

UNCACHED

const int UNCACHED

Implementation

static const int UNCACHED = 0;

UPDATEREADY

const int UPDATEREADY

Implementation

static const int UPDATEREADY = 4;

updateReadyEvent

const EventStreamProvider<Event> updateReadyEvent

Static factory designed to expose updateready events to event handlers that are not necessarily instances of ApplicationCache.

See EventStreamProvider for usage information.

Implementation

static const EventStreamProvider<Event> updateReadyEvent =
    const EventStreamProvider<Event>('updateready');