FontFaceSet extension type
The FontFaceSet interface of the
CSS Font Loading API
manages the loading of font-faces and querying of their download status.
A FontFaceSet instance is a
Set-like object
that can hold an ordered set of FontFace objects.
This property is available as Document.fonts, or self.fonts in
web workers.
API documentation sourced from MDN Web Docs.
- on
- Implemented types
- Available extensions
Constructors
-
FontFaceSet(JSArray<
FontFace> initialFaces) -
factory
Properties
- asString → String
-
Available on JSAny, provided by the JSAnyExtension extension
no setter - asString → String?
-
Available on JSAny?, provided by the JSAnyNullableExtension extension
no setter -
entries
→ Iterable<
MapEntry< String, dynamic> > -
Available on JSObject, provided by the JSObjectExtension extension
no setter - hashCode → int
-
The hash code for this object.
no setterinherited
- isDefinedAndNotNull → bool
-
Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension
no setter - isElement → bool
-
Available on JSObject?, provided by the JSObjectWebExtension extension
no setter - isHTMLElement → bool
-
Available on JSObject?, provided by the JSObjectWebExtension extension
no setter - isNode → bool
-
Available on JSObject?, provided by the JSObjectWebExtension extension
no setter - isNull → bool
-
Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension
Whether this value corresponds to JavaScriptnull.no setter - isTruthy → JSBoolean
-
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result of!!in JavaScript.thisno setter - isUndefined → bool
-
Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension
Whether this value corresponds to JavaScriptundefined.no setter - isUndefinedOrNull → bool
-
Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension
no setter -
keys
→ Iterable<
String> -
Available on JSObject, provided by the JSObjectExtension extension
no setter - not → JSBoolean
-
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result of!in JavaScript.thisno setter - onloading ↔ EventHandler?
-
getter/setter pair
- onloadingdone ↔ EventHandler?
-
getter/setter pair
- onloadingerror ↔ EventHandler?
-
getter/setter pair
-
ready
→ JSPromise<
FontFaceSet> -
The
readyread-only property of the FontFaceSet interface returns aPromisethat resolves to the given FontFaceSet.no setter - runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- status → FontFaceSetLoadStatus
-
The
statusread-only property of the FontFaceSet interface returns the loading state of the fonts in the set.no setter
Methods
-
add(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this+any -
add(
FontFace font) → FontFaceSet -
The
add()method of the FontFaceSet interface adds a new font to the set. -
addEventListener(
String type, EventListener? callback, [JSAny options]) → void -
The
addEventListener()method of the EventTarget interface sets up a function that will be called whenever the specified event is delivered to the target.inherited -
and(
JSAny? any) → JSAny? -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this&&any -
as<
T extends JSObject> () → T? -
Available on JSObject, provided by the JSObjectExtension extension
-
callMethod<
R extends JSAny?> (JSAny method, [JSAny? arg1, JSAny? arg2, JSAny? arg3, JSAny? arg4]) → R -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Callsmethodon this JSObject with up to four arguments. -
callMethodVarArgs<
R extends JSAny?> (JSAny method, [List< JSAny?> ? arguments]) → R -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Callsmethodon this JSObject with a variable number ofarguments. -
check(
String font, [String text]) → bool -
The
check()method of the FontFaceSet returnstrueif you can render some text using the given font specification without attempting to use any fonts in thisFontFaceSetthat are not yet fully loaded. This means you can use the font specification without causing a font swap. -
clear(
) → void -
The
clear()method of the FontFaceSet interface removes all fonts added via this interface. Fonts added with the rule are not removed. -
dartify(
) → Object? -
Available on JSAny?, provided by the JSAnyUtilityExtension extension
Converts a JavaScript JSON-like value to the Dart equivalent if possible. -
delete(
JSAny property) → JSBoolean -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Deletes the property with keypropertyfrom this JSObject. -
delete(
FontFace font) → bool -
The
delete()method of the FontFaceSet interface removes a font from the set. -
dispatchEvent(
Event event) → bool -
The
dispatchEvent()method of the EventTarget sends an Event to the object, (synchronously) invoking the affected event listeners in the appropriate order. The normal event processing rules (including the capturing and optional bubbling phase) also apply to events dispatched manually withdispatchEvent().inherited -
divide(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this/any -
equals(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this==any -
exponentiate(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this**any -
get(
String key) → Object? -
Available on JSObject, provided by the JSObjectExtension extension
-
getProperty<
R extends JSAny?> (JSAny property) → R -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
The value of the property keypropertyof this JSObject. -
greaterThan(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this>any -
greaterThanOrEqualTo(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this>=any -
has(
String property) → bool -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Shorthand helper for hasProperty to check whether this JSObject contains the property keyproperty, but takes and returns a Dart value. -
hasProperty(
JSAny property) → JSBoolean -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Whether or not this JSObject contains the property keyproperty. -
instanceof(
JSFunction constructor) → bool -
Available on JSAny?, provided by the JSAnyUtilityExtension extension
Whether thisJSAny?is aninstanceofconstructor. -
instanceOfString(
String constructorName) → bool -
Available on JSAny?, provided by the JSAnyUtilityExtension extension
Whether thisJSAny?is aninstanceofthe constructor that is defined byconstructorName, which is looked up in the globalContext. -
isA<
T extends JSAny?> () → bool -
Available on JSAny?, provided by the JSAnyUtilityExtension extension
Whether thisJSAny?is an instance of the JavaScript type that is declared byT. -
lessThan(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this<any -
lessThanOrEqualTo(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this<=any -
load(
String font, [String text]) → JSPromise< JSArray< FontFace> > -
The
load()method of the FontFaceSet forces all the fonts given in parameters to be loaded. -
modulo(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this%any -
multiply(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this*any -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
notEquals(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this!=any -
or(
JSAny? any) → JSAny? -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this||any -
put(
Object key, Object? value) → void -
Available on JSObject, provided by the JSObjectExtension extension
-
removeEventListener(
String type, EventListener? callback, [JSAny options]) → void -
The
removeEventListener()method of the EventTarget interface removes an event listener previously registered with EventTarget.addEventListener from the target. The event listener to be removed is identified using a combination of the event type, the event listener function itself, and various optional options that may affect the matching process; see Matching event listeners for removal.inherited -
setProperty(
JSAny property, JSAny? value) → void -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Write thevalueof property keypropertyof this JSObject. -
strictEquals(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this===any -
strictNotEquals(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this!==any -
subtract(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this-any -
toMap(
) → Map< String, dynamic> -
Available on JSObject, provided by the JSObjectExtension extension
-
toString(
) → String -
A string representation of this object.
inherited
-
typeofEquals(
String typeString) → bool -
Available on JSAny?, provided by the JSAnyUtilityExtension extension
Whether the result oftypeofon thisJSAny?istypeString. -
unsignedRightShift(
JSAny? any) → JSNumber -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this>>>any
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
-
operator [](
String property) → JSAny? -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Shorthand helper for getProperty to get the value of the property keypropertyof this JSObject, but takes a Dart value. -
operator []=(
String property, JSAny? value) → void -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Shorthand helper for setProperty to write thevalueof the property keypropertyof this JSObject, but takes a Dart value.