CKEditor Ecosystem Documentation
Search
Home/CKEditor 5/API
Class

DocumentFragment (engine/view)

@ckeditor/ckeditor5-engine/src/view/documentfragment

class
See source

Document fragment.

To create a new document fragment instance use the UpcastWriter#createDocumentFragment() method.

Filtering

Properties

  • readonly

    childCount : number

    See source

    Number of child nodes in this document fragment.

  • readonly

    document : Document

    See source

    The document to which this document fragment belongs.

  • readonly

    getFillerOffset : undefined

    See source

    Artificial element getFillerOffset. Returns undefined. Added for compatibility reasons.

  • readonly

    isEmpty : boolean

    See source

    Is true if there are no nodes inside this document fragment, false otherwise.

  • readonly

    name : undefined

    See source

    Artificial element name. Returns undefined. Added for compatibility reasons.

  • readonly

    parent : null

    See source

    Artificial parent of DocumentFragment. Returns null. Added for compatibility reasons.

  • readonly

    root : this

    See source

    Artificial root of DocumentFragment. Returns itself. Added for compatibility reasons.

  • private readonly

    _children : Array<Node>

    See source

    Array of child nodes.

  • private readonly

    _customProperties : Map<string | symbol, unknown>

    See source

    Map of custom properties. Custom properties can be added to document fragment instance.

Methods

  • internal

    constructor( document, [ children ] )

    See source

    Creates new DocumentFragment instance.

    Parameters

    document : Document

    The document to which this document fragment belongs.

    [ children ] : Node | Iterable<Node>

    A list of nodes to be inserted into the created document fragment.

  • Symbol.iterator() → Iterator<Node, any, undefined>

    See source

    Iterable interface.

    Iterates over nodes added to this document fragment.

    Returns

    Iterator<Node, any, undefined>

  • inherited

    delegate( events ) → EmitterMixinDelegateChain

    See source

    Delegates selected events to another Emitter. For instance:

    emitterA.delegate( 'eventX' ).to( emitterB );
emitterA.delegate( 'eventX', 'eventY' ).to( emitterC );

    then eventX is delegated (fired by) emitterB and emitterC along with data:

    emitterA.fire( 'eventX', data );

    and eventY is delegated (fired by) emitterC along with data:

    emitterA.fire( 'eventY', data );

    Parameters

    events : Array<string>

    Event names that will be delegated to another emitter.

    Returns

    EmitterMixinDelegateChain

  • inherited

    fire( eventOrInfo, args ) → GetEventInfo<TEvent>[ 'return' ]

    See source

    Fires an event, executing all callbacks registered for it.

    The first parameter passed to callbacks is an EventInfo object, followed by the optional args provided in the fire() method call.

    Type parameters

    TEvent : extends BaseEvent

    The type describing the event. See BaseEvent.

    Parameters

    eventOrInfo : GetNameOrEventInfo<TEvent>

    The name of the event or EventInfo object if event is delegated.

    args : TEvent[ 'args' ]

    Additional arguments to be passed to the callbacks.

    Returns

    GetEventInfo<TEvent>[ 'return' ]

    By default the method returns undefined. However, the return value can be changed by listeners through modification of the evt.return's property (the event info is the first param of every callback).

  • getChild( index ) → Node

    See source

    Gets child at the given index.

    Parameters

    index : number

    Index of child.

    Returns

    Node

    Child node.

  • getChildIndex( node ) → number

    See source

    Gets index of the given child node. Returns -1 if child node is not found.

    Parameters

    node : Node

    Child node.

    Returns

    number

    Index of the child node.

  • getChildren() → IterableIterator<Node>

    See source

    Gets child nodes iterator.

    Returns

    IterableIterator<Node>

    Child nodes iterator.

  • getCustomProperties() → Iterable<tuple>

    See source

    Returns an iterator which iterates over this document fragment's custom properties. Iterator provides [ key, value ] pairs for each stored property.

    Returns

    Iterable<tuple>

  • getCustomProperty( key ) → unknown

    See source

    Returns the custom property value for the given key.

    Parameters

    key : string | symbol

    Returns

    unknown

  • inherited

    is( type ) → this is Element | AttributeElement | ContainerElement | EditableElement | EmptyElement | RawElement | RootEditableElement | UIElement

    See source

    Checks whether this object is of type Element or its subclass.

    element.is( 'element' ); // -> true
element.is( 'node' ); // -> true
element.is( 'view:element' ); // -> true
element.is( 'view:node' ); // -> true

element.is( 'model:element' ); // -> false
element.is( 'documentSelection' ); // -> false

    Assuming that the object being checked is an element, you can also check its name:

    element.is( 'element', 'img' ); // -> true if this is an <img> element
text.is( 'element', 'img' ); -> false

    Parameters

    type : 'element' | 'view:element'

    Returns

    this is Element | AttributeElement | ContainerElement | EditableElement | EmptyElement | RawElement | RootEditableElement | UIElement

  • inherited

    is( type ) → this is AttributeElement

    See source

    Checks whether this object is of type AttributeElement.

    attributeElement.is( 'attributeElement' ); // -> true
attributeElement.is( 'element' ); // -> true
attributeElement.is( 'node' ); // -> true
attributeElement.is( 'view:attributeElement' ); // -> true
attributeElement.is( 'view:element' ); // -> true
attributeElement.is( 'view:node' ); // -> true

attributeElement.is( 'model:element' ); // -> false
attributeElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is an attribute element, you can also check its name:

    attributeElement.is( 'element', 'b' ); // -> true if this is a bold element
attributeElement.is( 'attributeElement', 'b' ); // -> same as above
text.is( 'element', 'b' ); -> false

    Parameters

    type : 'attributeElement' | 'view:attributeElement'

    Returns

    this is AttributeElement

  • inherited

    is( type ) → this is EditableElement | RootEditableElement

    See source

    Checks whether this object is of type EditableElement or its subclass.

    editableElement.is( 'editableElement' ); // -> true
editableElement.is( 'element' ); // -> true
editableElement.is( 'node' ); // -> true
editableElement.is( 'view:editableElement' ); // -> true
editableElement.is( 'view:element' ); // -> true
editableElement.is( 'view:node' ); // -> true

editableElement.is( 'model:element' ); // -> false
editableElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is an editbale element, you can also check its name:

    editableElement.is( 'element', 'div' ); // -> true if this is a div element
editableElement.is( 'editableElement', 'div' ); // -> same as above
text.is( 'element', 'div' ); -> false

    Parameters

    type : 'editableElement' | 'view:editableElement'

    Returns

    this is EditableElement | RootEditableElement

  • inherited

    is( type ) → this is ContainerElement | EditableElement | RootEditableElement

    See source

    Checks whether this object is of type ContainerElement or its subclass.

    containerElement.is( 'containerElement' ); // -> true
containerElement.is( 'element' ); // -> true
containerElement.is( 'node' ); // -> true
containerElement.is( 'view:containerElement' ); // -> true
containerElement.is( 'view:element' ); // -> true
containerElement.is( 'view:node' ); // -> true

containerElement.is( 'model:element' ); // -> false
containerElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is a container element, you can also check its name:

    containerElement.is( 'element', 'div' ); // -> true if this is a div container element
containerElement.is( 'contaienrElement', 'div' ); // -> same as above
text.is( 'element', 'div' ); -> false

    Parameters

    type : 'containerElement' | 'view:containerElement'

    Returns

    this is ContainerElement | EditableElement | RootEditableElement

  • inherited

    is( type ) → this is EmptyElement

    See source

    Checks whether this object is of type EmptyElement.

    emptyElement.is( 'emptyElement' ); // -> true
emptyElement.is( 'element' ); // -> true
emptyElement.is( 'node' ); // -> true
emptyElement.is( 'view:emptyElement' ); // -> true
emptyElement.is( 'view:element' ); // -> true
emptyElement.is( 'view:node' ); // -> true

emptyElement.is( 'model:element' ); // -> false
emptyElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is an empty element, you can also check its name:

    emptyElement.is( 'element', 'img' ); // -> true if this is a img element
emptyElement.is( 'emptyElement', 'img' ); // -> same as above
text.is( 'element', 'img' ); -> false

    Parameters

    type : 'emptyElement' | 'view:emptyElement'

    Returns

    this is EmptyElement

  • inherited

    is( type ) → this is Text

    See source

    Checks whether this object is of type Text.

    text.is( '$text' ); // -> true
text.is( 'node' ); // -> true
text.is( 'view:$text' ); // -> true
text.is( 'view:node' ); // -> true

text.is( 'model:$text' ); // -> false
text.is( 'element' ); // -> false
text.is( 'range' ); // -> false

    Parameters

    type : '$text' | 'view:$text'

    Returns

    this is Text

  • inherited

    is( type ) → this is Range

    See source

    Checks whether this object is of type Range.

    range.is( 'range' ); // -> true
range.is( 'view:range' ); // -> true

range.is( 'model:range' ); // -> false
range.is( 'element' ); // -> false
range.is( 'selection' ); // -> false

    Parameters

    type : 'range' | 'view:range'

    Returns

    this is Range

  • inherited

    is( type ) → this is Selection | DocumentSelection

    See source

    Checks whether this object is of type Selection or DocumentSelection.

    selection.is( 'selection' ); // -> true
selection.is( 'view:selection' ); // -> true

selection.is( 'model:selection' ); // -> false
selection.is( 'element' ); // -> false
selection.is( 'range' ); // -> false

    Parameters

    type : 'selection' | 'view:selection'

    Returns

    this is Selection | DocumentSelection

  • inherited

    is( type ) → this is Position

    See source

    Checks whether this object is of type Position.

    position.is( 'position' ); // -> true
position.is( 'view:position' ); // -> true

position.is( 'model:position' ); // -> false
position.is( 'element' ); // -> false
position.is( 'range' ); // -> false

    Parameters

    type : 'position' | 'view:position'

    Returns

    this is Position

  • inherited

    is( type ) → this is TextProxy

    See source

    Checks whether this object is of type TextProxy.

    textProxy.is( '$textProxy' ); // -> true
textProxy.is( 'view:$textProxy' ); // -> true

textProxy.is( 'model:$textProxy' ); // -> false
textProxy.is( 'element' ); // -> false
textProxy.is( 'range' ); // -> false

    Note: Until version 20.0.0 this method wasn't accepting '$textProxy' type. The legacy 'textProxy' type is still accepted for backward compatibility.

    Parameters

    type : '$textProxy' | 'view:$textProxy'

    Returns

    this is TextProxy

  • inherited

    is( type ) → this is DocumentFragment

    See source

    hecks whether this object is of type DocumentFragment.

    docFrag.is( 'documentFragment' ); // -> true
docFrag.is( 'view:documentFragment' ); // -> true

docFrag.is( 'model:documentFragment' ); // -> false
docFrag.is( 'element' ); // -> false
docFrag.is( 'node' ); // -> false

    Parameters

    type : 'documentFragment' | 'view:documentFragment'

    Returns

    this is DocumentFragment

  • inherited

    is( type ) → this is UIElement

    See source

    Checks whether this object is of type UIElement.

    uiElement.is( 'uiElement' ); // -> true
uiElement.is( 'element' ); // -> true
uiElement.is( 'node' ); // -> true
uiElement.is( 'view:uiElement' ); // -> true
uiElement.is( 'view:element' ); // -> true
uiElement.is( 'view:node' ); // -> true

uiElement.is( 'model:element' ); // -> false
uiElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is an ui element, you can also check its name:

    uiElement.is( 'element', 'span' ); // -> true if this is a span ui element
uiElement.is( 'uiElement', 'span' ); // -> same as above
text.is( 'element', 'span' ); -> false

    Parameters

    type : 'uiElement' | 'view:uiElement'

    Returns

    this is UIElement

  • inherited

    is( type ) → this is RootEditableElement

    See source

    Checks whether this object is of type RootEditableElement.

    rootEditableElement.is( 'rootElement' ); // -> true
rootEditableElement.is( 'editableElement' ); // -> true
rootEditableElement.is( 'element' ); // -> true
rootEditableElement.is( 'node' ); // -> true
rootEditableElement.is( 'view:editableElement' ); // -> true
rootEditableElement.is( 'view:element' ); // -> true
rootEditableElement.is( 'view:node' ); // -> true

rootEditableElement.is( 'model:element' ); // -> false
rootEditableElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is a root editable element, you can also check its name:

    rootEditableElement.is( 'element', 'div' ); // -> true if this is a div root editable element
rootEditableElement.is( 'rootElement', 'div' ); // -> same as above
text.is( 'element', 'div' ); -> false

    Parameters

    type : 'rootElement' | 'view:rootElement'

    Returns

    this is RootEditableElement

  • inherited

    is( type ) → this is RawElement

    See source

    Checks whether this object is of type RawElement.

    rawElement.is( 'rawElement' ); // -> true
rawElement.is( 'element' ); // -> true
rawElement.is( 'node' ); // -> true
rawElement.is( 'view:rawElement' ); // -> true
rawElement.is( 'view:element' ); // -> true
rawElement.is( 'view:node' ); // -> true

rawElement.is( 'model:element' ); // -> false
rawElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is a raw element, you can also check its name:

    rawElement.is( 'img' ); // -> true if this is an img element
rawElement.is( 'rawElement', 'img' ); // -> same as above
text.is( 'img' ); -> false

    Parameters

    type : 'rawElement' | 'view:rawElement'

    Returns

    this is RawElement

  • inherited

    is( type ) → this is DocumentSelection

    See source

    Checks whether this object is of type DocumentSelection.

    `docSelection.is( 'selection' ); // -> true
docSelection.is( 'documentSelection' ); // -> true
docSelection.is( 'view:selection' ); // -> true
docSelection.is( 'view:documentSelection' ); // -> true

docSelection.is( 'model:documentSelection' ); // -> false
docSelection.is( 'element' ); // -> false
docSelection.is( 'node' ); // -> false

    Parameters

    type : 'documentSelection' | 'view:documentSelection'

    Returns

    this is DocumentSelection

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type AttributeElement and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'attributeElement' | 'view:attributeElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type EditableElement or its subclass and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'editableElement' | 'view:editableElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type RawElement and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'rawElement' | 'view:rawElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type UIElement and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'uiElement' | 'view:uiElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type RootEditableElement and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'rootElement' | 'view:rootElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type EmptyElement has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'emptyElement' | 'view:emptyElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type ContainerElement or its subclass and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'containerElement' | 'view:containerElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type Element or its subclass and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'element' | 'view:element'
    name : N

    Returns

    boolean

  • inherited

    is( type ) → this is Text | Node | Element | AttributeElement | ContainerElement | EditableElement | EmptyElement | RawElement | RootEditableElement | UIElement

    See source

    Checks whether this object is of type Node or its subclass.

    This method is useful when processing view objects that are of unknown type. For example, a function may return a DocumentFragment or a Node that can be either a text node or an element. This method can be used to check what kind of object is returned.

    someObject.is( 'element' ); // -> true if this is an element
someObject.is( 'node' ); // -> true if this is a node (a text node or an element)
someObject.is( 'documentFragment' ); // -> true if this is a document fragment

    Since this method is also available on a range of model objects, you can prefix the type of the object with model: or view: to check, for example, if this is the model's or view's element:

    viewElement.is( 'view:element' ); // -> true
viewElement.is( 'model:element' ); // -> false

    By using this method it is also possible to check a name of an element:

    imgElement.is( 'element', 'img' ); // -> true
imgElement.is( 'view:element', 'img' ); // -> same as above, but more precise

    Parameters

    type : 'node' | 'view:node'

    Returns

    this is Text | Node | Element | AttributeElement | ContainerElement | EditableElement | EmptyElement | RawElement | RootEditableElement | UIElement

  • inherited

    listenTo( emitter, event, callback, [ options ] ) → void

    See source

    Registers a callback function to be executed when an event is fired in a specific (emitter) object.

    Events can be grouped in namespaces using :. When namespaced event is fired, it additionally fires all callbacks for that namespace.

    // myEmitter.on( ... ) is a shorthand for myEmitter.listenTo( myEmitter, ... ).
myEmitter.on( 'myGroup', genericCallback );
myEmitter.on( 'myGroup:myEvent', specificCallback );

// genericCallback is fired.
myEmitter.fire( 'myGroup' );
// both genericCallback and specificCallback are fired.
myEmitter.fire( 'myGroup:myEvent' );
// genericCallback is fired even though there are no callbacks for "foo".
myEmitter.fire( 'myGroup:foo' );

    An event callback can stop the event and set the return value of the fire method.

    Type parameters

    TEvent : extends BaseEvent

    The type describing the event. See BaseEvent.

    Parameters

    emitter : Emitter

    The object that fires the event.

    event : TEvent[ 'name' ]

    The name of the event.

    callback : GetCallback<TEvent>

    The function to be called on event.

    [ options ] : GetCallbackOptions<TEvent>

    Additional options.

    Returns

    void

  • inherited

    off( event, callback ) → void

    See source

    Stops executing the callback on the given event. Shorthand for this.stopListening( this, event, callback ).

    Parameters

    event : string

    The name of the event.

    callback : Function

    The function to stop being called.

    Returns

    void

  • inherited

    on( event, callback, [ options ] ) → void

    See source

    Registers a callback function to be executed when an event is fired.

    Shorthand for this.listenTo( this, event, callback, options ) (it makes the emitter listen on itself).

    Type parameters

    TEvent : extends BaseEvent

    The type descibing the event. See BaseEvent.

    Parameters

    event : TEvent[ 'name' ]

    The name of the event.

    callback : GetCallback<TEvent>

    The function to be called on event.

    [ options ] : GetCallbackOptions<TEvent>

    Additional options.

    Returns

    void

  • inherited

    once( event, callback, [ options ] ) → void

    See source

    Registers a callback function to be executed on the next time the event is fired only. This is similar to calling on followed by off in the callback.

    Type parameters

    TEvent : extends BaseEvent

    The type descibing the event. See BaseEvent.

    Parameters

    event : TEvent[ 'name' ]

    The name of the event.

    callback : GetCallback<TEvent>

    The function to be called on event.

    [ options ] : GetCallbackOptions<TEvent>

    Additional options.

    Returns

    void

  • inherited

    stopDelegating( [ event ], [ emitter ] ) → void

    See source

    Stops delegating events. It can be used at different levels:

    • To stop delegating all events.
    • To stop delegating a specific event to all emitters.
    • To stop delegating a specific event to a specific emitter.

    Parameters

    [ event ] : string

    The name of the event to stop delegating. If omitted, stops it all delegations.

    [ emitter ] : Emitter

    (requires event) The object to stop delegating a particular event to. If omitted, stops delegation of event to all emitters.

    Returns

    void

  • inherited

    stopListening( [ emitter ], [ event ], [ callback ] ) → void

    See source

    Stops listening for events. It can be used at different levels:

    • To stop listening to a specific callback.
    • To stop listening to a specific event.
    • To stop listening to all events fired by a specific object.
    • To stop listening to all events fired by all objects.

    Parameters

    [ emitter ] : Emitter

    The object to stop listening to. If omitted, stops it for all objects.

    [ event ] : string

    (Requires the emitter) The name of the event to stop listening to. If omitted, stops it for all events from emitter.

    [ callback ] : Function

    (Requires the event) The function to be removed from the call list for the given event.

    Returns

    void

  • internal

    _appendChild( items ) → number

    See source

    Insert a child node or a list of child nodes at the end and sets the parent of these nodes to this fragment.

    Parameters

    items : string | Item | Iterable<string | Item>

    Items to be inserted.

    Returns

    number

    Number of appended nodes.

  • internal

    _fireChange( type, node ) → void

    See source

    Fires change event with given type of the change.

    Parameters

    type : ChangeType

    Type of the change.

    node : Node | DocumentFragment

    Changed node.

    Returns

    void

  • internal

    _insertChild( index, items ) → number

    See source

    Inserts a child node or a list of child nodes on the given index and sets the parent of these nodes to this fragment.

    Parameters

    index : number

    Position where nodes should be inserted.

    items : string | Item | Iterable<string | Item>

    Items to be inserted.

    Returns

    number

    Number of inserted nodes.

  • internal

    _removeChildren( index, howMany ) → Array<Node>

    See source

    Removes number of child nodes starting at the given index and set the parent of these nodes to null.

    Parameters

    index : number

    Number of the first node to remove.

    howMany : number

    Number of nodes to remove.

    Defaults to 1

    Returns

    Array<Node>

    The array of removed nodes.

  • internal

    _removeCustomProperty( key ) → boolean

    See source

    Removes the custom property stored under the given key.

    Parameters

    key : string | symbol

    Returns

    boolean

    Returns true if property was removed.

    Related:

  • internal

    _setCustomProperty( key, value ) → void

    See source

    Sets a custom property. They can be used to add special data to elements.

    Parameters

    key : string | symbol
    value : unknown

    Returns

    void

    Related: