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Class

CommentThread (comments/comments)

@ckeditor/ckeditor5-comments/src/comments/commentsrepository

class

Comment thread representation. Stores a list of Comments.

Filtering

Properties

  • channelId : String | undefined

    The channel where the comment thread was created.

  • comments : Collection

    readonly

    A collection of Comments belonging to this thread.

  • first

    inherited

    Returns the first item from the collection or null when collection is empty.

  • id : String

    The comment thread ID.

  • isAttached : Boolean

    Informs if the comment thread is attached to any target at the moment.

  • isReadOnly : Boolean

    observable

    Informs if the comment thread is in read-only state (true) or not (false).

  • last

    inherited

    Returns the last item from the collection or null when collection is empty.

  • length : Number

    The number of comments in the comment thread.

  • weight : Number

    Sum of weights of all comments in this thread.

  • _bindToCollection : Collection

    protected inherited

    A collection instance this collection is bound to as a result of calling bindTo method.

  • _bindToExternalToInternalMap : WeakMap

    protected inherited

    A helper mapping external items of a bound collection (bindTo) and actual items of this collection. It provides information necessary to properly remove items bound to another collection.

    See _bindToInternalToExternalMap.

  • _bindToInternalToExternalMap : WeakMap

    protected inherited

    A helper mapping items of this collection to external items of a bound collection (bindTo). It provides information necessary to manage the bindings, e.g. to avoid loops in two–way bindings.

    See _bindToExternalToInternalMap.

  • _isAttached : Boolean

    protected

    Informs if the comment thread is attached to any target at the moment.

  • _idProperty : String

    private inherited

    The name of the property which is considered to identify an item.

  • _itemMap : Map

    private inherited

    The internal map of items in the collection.

  • _items : Array.<Object>

    private inherited

    The internal list of items in the collection.

  • _skippedIndexesFromExternal : Array

    private inherited

    Stores indexes of skipped items from bound external collection.

Methods

  • constructor( commentsRepository, data = { [data.channelId], data.id } )

    Parameters

    commentsRepository : CommentsRepository
    data : Object
    Properties
    [ data.channelId ] : String
    data.id : String

  • Symbol.iterator() → Iterable.<*>

    inherited

    Iterable interface.

    Returns

    Iterable.<*>

  • add( item, [ index ] )

    inherited

    Adds an item into the collection.

    If the item does not have an id, then it will be automatically generated and set on the item.

    Parameters

    item : Object
    [ index ] : Number

    The position of the item in the collection. The item is pushed to the collection when index not specified.

    Fires

  • addComment( data = { data.commentId, data.content, data.authorId, [data.createdAt], [data.attributes], [data.isFromAdapter] } )

    Creates a new comment inside the comment thread.

    Note This method is event-driven. It means it fires an event then a normal priority listener catches it and executes an action. It makes it possible to add some actions before and after method will be executed.

    Parameters

    data : Object

    Data object.

    Properties
    data.commentId : String

    Comment id.

    data.content : String

    Comment content.

    data.authorId : String

    Author id.

    [ data.createdAt ] : Date

    Creation date. If not set, current date (new Date()) will be used.

    [ data.attributes ] : Object

    Custom comment attributes. See also setAttribute and removeAttribute.

    [ data.isFromAdapter ] : Boolean

    Defaults to false

    Fires

  • addMany( item, [ index ] )

    inherited

    Adds multiple items into the collection.

    Any item not containing an id will get an automatically generated one.

    Parameters

    item : Iterable.<Object>
    [ index ] : Number

    The position of the insertion. Items will be appended if no index is specified.

    Fires

  • attachTo( target )

    Creates comment annotations and displays it attached to the given target.

    Parameters

    target : HTMLElement | Rect | function

  • bindTo( externalCollection ) → Object

    inherited

    Binds and synchronizes the collection with another one.

    The binding can be a simple factory:

    class FactoryClass {
	constructor( data ) {
		this.label = data.label;
	}
}

const source = new Collection( { idProperty: 'label' } );
const target = new Collection();

target.bindTo( source ).as( FactoryClass );

source.add( { label: 'foo' } );
source.add( { label: 'bar' } );

console.log( target.length ); // 2
console.log( target.get( 1 ).label ); // 'bar'

source.remove( 0 );
console.log( target.length ); // 1
console.log( target.get( 0 ).label ); // 'bar'

    or the factory driven by a custom callback:

    class FooClass {
	constructor( data ) {
		this.label = data.label;
	}
}

class BarClass {
	constructor( data ) {
		this.label = data.label;
	}
}

const source = new Collection( { idProperty: 'label' } );
const target = new Collection();

target.bindTo( source ).using( ( item ) => {
	if ( item.label == 'foo' ) {
		return new FooClass( item );
	} else {
		return new BarClass( item );
	}
} );

source.add( { label: 'foo' } );
source.add( { label: 'bar' } );

console.log( target.length ); // 2
console.log( target.get( 0 ) instanceof FooClass ); // true
console.log( target.get( 1 ) instanceof BarClass ); // true

    or the factory out of property name:

    const source = new Collection( { idProperty: 'label' } );
const target = new Collection();

target.bindTo( source ).using( 'label' );

source.add( { label: { value: 'foo' } } );
source.add( { label: { value: 'bar' } } );

console.log( target.length ); // 2
console.log( target.get( 0 ).value ); // 'foo'
console.log( target.get( 1 ).value ); // 'bar'

    It's possible to skip specified items by returning falsy value:

    const source = new Collection();
const target = new Collection();

target.bindTo( source ).using( item => {
	if ( item.hidden ) {
		return null;
	}

	return item;
} );

source.add( { hidden: true } );
source.add( { hidden: false } );

console.log( source.length ); // 2
console.log( target.length ); // 1

    Note: clear can be used to break the binding.

    Parameters

    externalCollection : Collection

    A collection to be bound.

    Returns

    Object
    CollectionBindToChain

    The binding chain object.

  • clear()

    inherited

    Removes all items from the collection and destroys the binding created using bindTo.

    Fires

  • delegate( events ) → EmitterMixinDelegateChain

    mixed

    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 : String

    Event names that will be delegated to another emitter.

    Returns

    EmitterMixinDelegateChain

  • filter( callback, callback.item, callback.index, ctx ) → Array.<Object>

    inherited

    Returns an array with items for which the callback returned a true value.

    Parameters

    callback : function
    callback.item : Object
    callback.index : Number
    ctx : Object

    Context in which the callback will be called.

    Returns

    Array.<Object>

    The array with matching items.

  • find( callback, callback.item, callback.index, ctx ) → Object

    inherited

    Finds the first item in the collection for which the callback returns a true value.

    Parameters

    callback : function
    callback.item : Object
    callback.index : Number
    ctx : Object

    Context in which the callback will be called.

    Returns

    Object

    The item for which callback returned a true value.

  • fire( eventOrInfo, [ args ] ) → *

    mixed

    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.

    Parameters

    eventOrInfo : String | EventInfo

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

    [ args ] : *

    Additional arguments to be passed to the callbacks.

    Returns

    *

    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).

  • get( idOrIndex ) → Object | null

    inherited

    Gets an item by its ID or index.

    Parameters

    idOrIndex : String | Number

    The item ID or index in the collection.

    Returns

    Object | null

    The requested item or null if such item does not exist.

  • getComment( commentId ) → Comment

    Returns comment of given id.

    Parameters

    commentId : String

    Returns

    Comment

  • getIndex( itemOrId ) → Number

    inherited

    Gets an index of an item in the collection. When an item is not defined in the collection, the index will equal -1.

    Parameters

    itemOrId : Object | String

    The item or its ID in the collection.

    Returns

    Number

    The index of a given item.

  • has( itemOrId ) → Boolean

    inherited

    Returns a Boolean indicating whether the collection contains an item.

    Parameters

    itemOrId : Object | String

    The item or its ID in the collection.

    Returns

    Boolean

    true if the collection contains the item, false otherwise.

  • listenTo( emitter, event, callback, [ options ] = { [options.priority] } )

    mixed

    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.

    Parameters

    emitter : Emitter

    The object that fires the event.

    event : String

    The name of the event.

    callback : function

    The function to be called on event.

    [ options ] : Object

    Additional options.

    Properties
    [ options.priority ] : PriorityString | Number

    The priority of this event callback. The higher the priority value the sooner the callback will be fired. Events having the same priority are called in the order they were added.

    Defaults to 'normal'

    Defaults to {}

  • map( callback, callback.item, callback.index, ctx ) → Array

    inherited

    Executes the callback for each item in the collection and composes an array or values returned by this callback.

    Parameters

    callback : function
    callback.item : Object
    callback.index : Number
    ctx : Object

    Context in which the callback will be called.

    Returns

    Array

    The result of mapping.

  • off( event, callback )

    mixed

    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.

  • on( event, callback, [ options ] = { [options.priority] } )

    mixed

    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).

    Parameters

    event : String

    The name of the event.

    callback : function

    The function to be called on event.

    [ options ] : Object

    Additional options.

    Properties
    [ options.priority ] : PriorityString | Number

    The priority of this event callback. The higher the priority value the sooner the callback will be fired. Events having the same priority are called in the order they were added.

    Defaults to 'normal'

    Defaults to {}

  • once( event, callback, [ options ] = { [options.priority] } )

    mixed

    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.

    Parameters

    event : String

    The name of the event.

    callback : function

    The function to be called on event.

    [ options ] : Object

    Additional options.

    Properties
    [ options.priority ] : PriorityString | Number

    The priority of this event callback. The higher the priority value the sooner the callback will be fired. Events having the same priority are called in the order they were added.

    Defaults to 'normal'

    Defaults to {}

  • remove( subject ) → Object

    inherited

    Removes an item from the collection.

    Parameters

    subject : Object | Number | String

    The item to remove, its ID or index in the collection.

    Returns

    Object

    The removed item.

    Fires

  • stopDelegating( [ event ], [ emitter ] )

    mixed

    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.

  • stopListening( [ emitter ], [ event ], [ callback ] )

    mixed

    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.

  • toJSON() → Object

    Returns

    Object

  • _add( comment )

    protected

    Add comment to the thread according to the creation date. Comments in the thread are sorted by date.

    Parameters

    comment : Comment

  • _setUpBindToBinding( factory )

    protected inherited

    Finalizes and activates a binding initiated by {#bindTo}.

    Parameters

    factory : function

    A function which produces collection items.

  • _getItemIdBeforeAdding( item ) → String

    private inherited

    Returns an unique id property for a given item.

    The method will generate new id and assign it to the item if it doesn't have any.

    Parameters

    item : Object

    Item to be added.

    Returns

    String

  • _remove( subject ) → Array

    private inherited

    Core remove method implementation shared in other functions.

    In contrast this method does not fire the event-change event.

    Parameters

    subject : Object

    The item to remove, its id or index in the collection.

    Returns

    Array

    Returns an array with the removed item and its index.

    Fires

Events

  • add( eventInfo, item )

    inherited

    Fired when an item is added to the collection.

    Parameters

    eventInfo : EventInfo

    An object containing information about the fired event.

    item : Object

    The added item.

  • change( eventInfo, added, removed, index )

    inherited

    Fired when the collection was changed due to adding or removing items.

    Parameters

    eventInfo : EventInfo

    An object containing information about the fired event.

    added : Iterable.<Object>

    A list of added items.

    removed : Iterable.<Object>

    A list of removed items.

    index : Number

    An index where the addition or removal occurred.

  • change:isReadOnly( eventInfo, name, value, oldValue )

    Fired when the isReadOnly property changed value.

    Parameters

    eventInfo : EventInfo

    An object containing information about the fired event.

    name : String

    Name of the changed property (isReadOnly).

    value : Boolean

    New value of the isReadOnly property with given key or null, if operation should remove property.

    oldValue : Boolean

    Old value of the isReadOnly property with given key or null, if property was not set before.

  • remove( eventInfo, item, index )

    inherited

    Fired when an item is removed from the collection.

    Parameters

    eventInfo : EventInfo

    An object containing information about the fired event.

    item : Object

    The removed item.

    index : Number

    Index from which item was removed.