DowncastDispatcher

class

The downcast dispatcher is a central point of downcasting (conversion from the model to the view), which is a process of reacting to changes in the model and firing a set of events. The callbacks listening to these events are called converters. The converters' role is to convert the model changes to changes in view (for example, adding view nodes or changing attributes on view elements).

During the conversion process, downcast dispatcher fires events basing on the state of the model and prepares data for these events. It is important to understand that the events are connected with the changes done on the model, for example: "a node has been inserted" or "an attribute has changed". This is in contrary to upcasting (a view-to-model conversion) where you convert the view state (view nodes) to a model tree.

The events are prepared basing on a diff created by the Differ, which buffers them and then passes to the downcast dispatcher as a diff between the old model state and the new model state.

Note that because the changes are converted, there is a need to have a mapping between the model structure and the view structure. To map positions and elements during the downcast (a model-to-view conversion), use Mapper.

Downcast dispatcher fires the following events for model tree changes:

insert – If a range of nodes was inserted to the model tree.
remove – If a range of nodes was removed from the model tree.
attribute – If an attribute was added, changed or removed from a model node.

For insert and attribute, the downcast dispatcher generates consumables. These are used to have control over which changes have already been consumed. It is useful when some converters overwrite others or convert multiple changes (for example, it converts an insertion of an element and also converts that element's attributes during the insertion).

Additionally, downcast dispatcher fires events for marker changes:

addMarker – If a marker was added.
removeMarker – If a marker was removed.

Note that changing a marker is done through removing the marker from the old range and adding it to the new range, so both of these events are fired.

Finally, a downcast dispatcher also handles firing events for the model selection conversion:

selection – Converts the selection from the model to the view.
attribute – Fired for every selection attribute.
addMarker – Fired for every marker that contains a selection.

Unlike the model tree and the markers, the events for selection are not fired for changes but for a selection state.

When providing custom listeners for a downcast dispatcher, remember to check whether a given change has not been consumed yet.

When providing custom listeners for a downcast dispatcher, keep in mind that you should not stop the event. If you stop it, then the default converter at the lowest priority will not trigger the conversion of this node's attributes and child nodes.

When providing custom listeners for a downcast dispatcher, remember to use the provided view downcast writer to apply changes to the view document.

You can read more about conversion in the following guide:

Downcast conversion

An example of a custom converter for the downcast dispatcher:

// You will convert inserting a "paragraph" model element into the model.
downcastDispatcher.on( 'insert:paragraph', ( evt, data, conversionApi ) => {
	// Remember to check whether the change has not been consumed yet and consume it.
	if ( !conversionApi.consumable.consume( data.item, 'insert' ) ) {
		return;
	}

	// Translate the position in the model to a position in the view.
	const viewPosition = conversionApi.mapper.toViewPosition( data.range.start );

	// Create a <p> element that will be inserted into the view at the `viewPosition`.
	const viewElement = conversionApi.writer.createContainerElement( 'p' );

	// Bind the newly created view element to the model element so positions will map accordingly in the future.
	conversionApi.mapper.bindElements( data.item, viewElement );

	// Add the newly created view element to the view.
	conversionApi.writer.insert( viewPosition, viewElement );
} );

See source

Properties

Methods

constructor( conversionApi )

module:engine/conversion/downcastdispatcher~DowncastDispatcher#constructor
Creates a downcast dispatcher instance.

See source (with github icon)

Parameters

conversionApi : Pick<DowncastConversionApi, 'mapper' | 'schema'>

Additional properties for an interface that will be passed to events fired by the downcast dispatcher.

Related:
- DowncastConversionApi
convert( range, markers, writer, options ) → void

module:engine/conversion/downcastdispatcher~DowncastDispatcher#convert
Starts a conversion of a model range and the provided markers.

See source (with github icon)

Parameters

range : ModelRange

The inserted range.

markers : Map<string, ModelRange>

The map of markers that should be down-casted.

writer : ViewDowncastWriter

The view writer that should be used to modify the view document.

options : Record<string, unknown>

Optional options object passed to convertionApi.options.

Defaults to {}

Returns

void

Fires
convertChanges( differ, markers, writer ) → void

module:engine/conversion/downcastdispatcher~DowncastDispatcher#convertChanges
Converts changes buffered in the given model differ and fires conversion events based on it.

See source (with github icon)

Parameters

differ : Differ

The differ object with buffered changes.

markers : MarkerCollection

Markers related to the model fragment to convert.

writer : ViewDowncastWriter

The view writer that should be used to modify the view document.

Returns

void

Fires
- insert
- remove
- attribute
- addMarker
- removeMarker
- reduceChanges
convertSelection( selection, markers, writer ) → void

module:engine/conversion/downcastdispatcher~DowncastDispatcher#convertSelection
Starts the model selection conversion.

Fires events for a given selection to start the selection conversion.

See source (with github icon)

Parameters

selection : ModelSelection | ModelDocumentSelection

The selection to convert.

markers : MarkerCollection

Markers connected with the converted model.

writer : ViewDowncastWriter

View writer that should be used to modify the view document.

Returns

void

Fires
delegate( events ) → EmitterMixinDelegateChain
inherited

module:engine/conversion/downcastdispatcher~DowncastDispatcher#delegate
Delegates selected events to another Emitter. For instance:
```
emitterA.delegate( 'eventX' ).to( emitterB );
emitterA.delegate( 'eventX', 'eventY' ).to( emitterC );
```
Copy code
then eventX is delegated (fired by) emitterB and emitterC along with data:
```
emitterA.fire( 'eventX', data );
```
Copy code
and eventY is delegated (fired by) emitterC along with data:
```
emitterA.fire( 'eventY', data );
```
Copy code
See source (with github icon)

Parameters

events : Array<string>

Event names that will be delegated to another emitter.

Returns

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

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.

See source (with github icon)

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

module:engine/conversion/downcastdispatcher~DowncastDispatcher#listenTo:BASE_EMITTER
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' );
```
Copy code
An event callback can stop the event and set the return value of the fire method.

See source (with github icon)

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
off( event, callback ) → void
inherited

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

See source (with github icon)

Parameters

event : string

The name of the event.

callback : Function

The function to stop being called.

Returns

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

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).

See source (with github icon)

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

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.

See source (with github icon)

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

module:engine/conversion/downcastdispatcher~DowncastDispatcher#stopDelegating
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.
See source (with github icon)

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

module:engine/conversion/downcastdispatcher~DowncastDispatcher#stopListening:BASE_STOP
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.
See source (with github icon)

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
_addConsumablesForInsert( consumable, walkerValues ) → ModelConsumable
private

Populates provided ModelConsumable with values to consume from a given range, assuming that the range has just been inserted to the model.

See source (with github icon)

Parameters

consumable : ModelConsumable

The consumable.

walkerValues : Iterable<ModelTreeWalkerValue>

The walker values for the inserted range.

Returns

ModelConsumable

The values to consume.
_addConsumablesForRange( consumable, range, type ) → ModelConsumable
private

Populates provided ModelConsumable with values to consume for a given range.

See source (with github icon)

Parameters

consumable : ModelConsumable

The consumable.

range : ModelRange

The affected range.

type : string

Consumable type.

Returns

ModelConsumable

The values to consume.
_addConsumablesForSelection( consumable, selection, markers ) → ModelConsumable
private

Populates provided ModelConsumable with selection consumable values.

See source (with github icon)

Parameters

consumable : ModelConsumable

The consumable.

selection : ModelSelection | ModelDocumentSelection

The selection to create the consumable from.

markers : Iterable<Marker>

Markers that contain the selection.

Returns

ModelConsumable

The values to consume.
_convertAttribute( range, key, oldValue, newValue, conversionApi ) → void
private

module:engine/conversion/downcastdispatcher~DowncastDispatcher#_convertAttribute
Starts a conversion of an attribute change on a given range.

For each node in the given range, attribute event is fired with the passed data.

See source (with github icon)

Parameters

range : ModelRange

Changed range.

key : string

Key of the attribute that has changed.

oldValue : unknown

Attribute value before the change or null if the attribute has not been set before.

newValue : unknown

New attribute value or null if the attribute has been removed.

conversionApi : DowncastConversionApi

The conversion API object.

Returns

void

Fires
- attribute
_convertInsert( range, conversionApi, options = { [options.doNotAddConsumables] } ) → void
private

module:engine/conversion/downcastdispatcher~DowncastDispatcher#_convertInsert
Fires insertion conversion of a range of nodes.

For each node in the range, insert event is fired. For each attribute on each node, attribute event is fired.

See source (with github icon)

Parameters

range : ModelRange

The inserted range.

conversionApi : DowncastConversionApi

The conversion API object.

options : object

Properties

[ options.doNotAddConsumables ] : boolean

Whether the ModelConsumable should not get populated for items in the provided range.

Defaults to {}

Returns

void

Fires
- insert
- attribute
_convertMarkerAdd( markerName, markerRange, conversionApi ) → void
private

module:engine/conversion/downcastdispatcher~DowncastDispatcher#_convertMarkerAdd
Converts the added marker. Fires the addMarker event for each item in the marker's range. If the range is collapsed, a single event is dispatched. See the event description for more details.

See source (with github icon)

Parameters

markerName : string

Marker name.

markerRange : ModelRange

The marker range.

conversionApi : DowncastConversionApi

The conversion API object.

Returns

void

Fires
- addMarker
_convertMarkerRemove( markerName, markerRange, conversionApi ) → void
private

module:engine/conversion/downcastdispatcher~DowncastDispatcher#_convertMarkerRemove
Fires the conversion of the marker removal. Fires the removeMarker event with the provided data.

See source (with github icon)

Parameters

markerName : string

Marker name.

markerRange : ModelRange

The marker range.

conversionApi : DowncastConversionApi

The conversion API object.

Returns

void

Fires
- removeMarker
_convertReinsert( range, conversionApi ) → void
private

module:engine/conversion/downcastdispatcher~DowncastDispatcher#_convertReinsert
Fires re-insertion conversion (with a reconversion flag passed to insert events) of a range of elements (only elements on the range depth, without children).

For each node in the range on its depth (without children), insert event is fired. For each attribute on each node, attribute event is fired.

See source (with github icon)

Parameters

range : ModelRange

The range to reinsert.

conversionApi : DowncastConversionApi

The conversion API object.

Returns

void

Fires
- insert
- attribute
_convertRemove( position, length, name, conversionApi ) → void
private

Fires conversion of a single node removal. Fires remove event with provided data.

See source (with github icon)

Parameters

position : ModelPosition

Position from which node was removed.

length : number

Offset size of removed node.

name : string

Name of removed node.

conversionApi : DowncastConversionApi

The conversion API object.

Returns

void
_createConversionApi( writer, refreshedItems, options ) → DowncastConversionApi
private

Builds an instance of the DowncastConversionApi from a template and a given ViewDowncastWriter and options object.

See source (with github icon)

Parameters

writer : ViewDowncastWriter

View writer that should be used to modify the view document.

refreshedItems : Set<ModelItem>

A set of model elements that should not reuse their previous view representations.

Defaults to ...

options : Record<string, unknown>

Optional options passed to convertionApi.options.

Defaults to {}

Returns

DowncastConversionApi

The conversion API object.
_reduceChanges( changes ) → Iterable<DifferItem | DifferItemReinsert>
private

module:engine/conversion/downcastdispatcher~DowncastDispatcher#_reduceChanges
Fires the reduction of changes buffered in the Differ.

Features can replace selected DifferItems with reinsert entries to trigger reconversion. The DowncastHelpers.elementToStructure() is using this event to trigger reconversion.

See source (with github icon)

Parameters

changes : Iterable<DifferItem>

Returns

Iterable<DifferItem | DifferItemReinsert>

Fires
- reduceChanges
_testAndFire( type, data, conversionApi ) → void
private

module:engine/conversion/downcastdispatcher~DowncastDispatcher#_testAndFire
Tests whether given event wasn't already fired and if so, fires it.

See source (with github icon)

Type parameters

TType

Parameters

type : TType | `${ TType }:${ string }`

Event type.

data : DowncastDispatcherEventMap<ModelItem>[ TType ]

Event data.

conversionApi : DowncastConversionApi

The conversion API object.

Returns

void

Fires
- insert
- attribute
_testAndFireAddAttributes( item, conversionApi ) → void
private

Fires not already fired events for setting attributes on just inserted item.

See source (with github icon)

Parameters

item : ModelItem

The model item to convert attributes for.

conversionApi : DowncastConversionApi

The conversion API object.

Returns

void

Events

addMarker( eventInfo, data, conversionApi )

module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:addMarker
Fired when a new marker is added to the model. Also fired when a collapsed model selection that is inside a marker is converted.

addMarker is a namespace for a class of events. Names of actually called events follow this pattern: addMarker:markerName. By specifying certain marker names, you can make the events even more gradual. For example, if markers are named foo:abc, foo:bar, then it is possible to listen to addMarker:foo or addMarker:foo:abc and addMarker:foo:bar events.

If the marker range is not collapsed:
- the event is fired for each item in the marker range one by one,
- conversionApi.consumable includes each item of the marker range and the consumable value is same as the event name.
If the marker range is collapsed:
- there is only one event,
- conversionApi.consumable includes marker range with the event name.
If the selection inside a marker is converted:
- there is only one event,
- conversionApi.consumable includes the selection instance with the event name.
See source (with github icon)

Parameters

eventInfo : EventInfo

An object containing information about the fired event.

data : DowncastDispatcherEventMap<TItem>[ TName ]

Additional information about the change.

conversionApi : DowncastConversionApi

Conversion interface to be used by callback, passed in DowncastDispatcher constructor.
attribute( eventInfo, data, conversionApi )

module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute
Fired in the following cases:
- when an attribute has been added, changed, or removed from a node,
- when a node with an attribute is inserted,
- when a collapsed model selection attribute is converted.
attribute is a namespace for a class of events. Names of actually called events follow this pattern: attribute:attributeKey:name. attributeKey is the key of added/changed/removed attribute. name is either '$text' if change was on a text node, or the name of element which attribute has changed.

This way listeners can either listen to a general attribute:bold event or specific event (for example attribute:src:imageBlock).

See source (with github icon)

Parameters

eventInfo : EventInfo

An object containing information about the fired event.

data : DowncastDispatcherEventMap<TItem>[ TName ]

Additional information about the change.

conversionApi : DowncastConversionApi

Conversion interface to be used by callback, passed in DowncastDispatcher constructor.
cleanSelection( eventInfo, data, conversionApi )

Fired at the beginning of selection conversion, before selection events.

Should be used to clean up the view state at the current selection position, before the selection is moved to another place.

See source (with github icon)

Parameters

eventInfo : EventInfo

An object containing information about the fired event.

data : DowncastDispatcherEventMap<TItem>[ TName ]

conversionApi : DowncastConversionApi

Conversion interface to be used by callback, passed in DowncastDispatcher constructor.
insert( eventInfo, data, conversionApi )

Fired for inserted nodes.

insert is a namespace for a class of events. Names of actually called events follow this pattern: insert:name. name is either '$text', when a text node has been inserted, or name of inserted element.

This way, the listeners can either listen to a general insert event or specific event (for example insert:paragraph).

See source (with github icon)

Parameters

eventInfo : EventInfo

An object containing information about the fired event.

data : DowncastDispatcherEventMap<TItem>[ TName ]

Additional information about the change.

conversionApi : DowncastConversionApi

Conversion interface to be used by callback, passed in the DowncastDispatcher constructor.
reduceChanges( eventInfo, data )

Fired to enable reducing (transforming) changes buffered in the Differ before convertChanges() will fire any conversion events.

For instance, a feature can replace selected DifferItems with a reinsert entry to trigger reconversion of an element when e.g. its attribute has changes. The * DowncastHelpers.elementToStructure() helper is using this event to trigger reconversion of an element when the element, its attributes or direct children changed.

See source (with github icon)

Parameters

eventInfo : EventInfo

An object containing information about the fired event.

data : DowncastReduceChangesEventData
remove( eventInfo, data, conversionApi )

Fired for removed nodes.

remove is a namespace for a class of events. Names of actually called events follow this pattern: remove:name. name is either '$text', when a a text node has been removed, or the name of removed element.

This way, listeners can either listen to a general remove event or specific event (for example remove:paragraph).

See source (with github icon)

Parameters

eventInfo : EventInfo

An object containing information about the fired event.

data : DowncastDispatcherEventMap<TItem>[ TName ]

Additional information about the change.

conversionApi : DowncastConversionApi

Conversion interface to be used by callback, passed in DowncastDispatcher constructor.
removeMarker( eventInfo, data, conversionApi )

Fired when a marker is removed from the model.

removeMarker is a namespace for a class of events. Names of actually called events follow this pattern: removeMarker:markerName. By specifying certain marker names, you can make the events even more gradual. For example, if markers are named foo:abc, foo:bar, then it is possible to listen to removeMarker:foo or removeMarker:foo:abc and removeMarker:foo:bar events.

See source (with github icon)

Parameters

eventInfo : EventInfo

An object containing information about the fired event.

data : DowncastDispatcherEventMap<TItem>[ TName ]

Additional information about the change.

conversionApi : DowncastConversionApi

Conversion interface to be used by callback, passed in DowncastDispatcher constructor.
selection( eventInfo, data, conversionApi )

Fired for selection changes.

See source (with github icon)

Parameters

eventInfo : EventInfo

An object containing information about the fired event.

data : DowncastDispatcherEventMap<TItem>[ TName ]

conversionApi : DowncastConversionApi

Conversion interface to be used by callback, passed in DowncastDispatcher constructor.

DowncastDispatcher

Properties

_conversionApi : Pick<DowncastConversionApi, 'dispatcher' | 'mapper' | 'schema'> internalreadonly

_firedEventsMap : WeakMap<DowncastConversionApi, Map<unknown, Set<string>>> Lock icon privatereadonly

Methods

constructor( conversionApi )

Parameters

Related:

convert( range, markers, writer, options ) → void

Parameters

Returns

Fires

convertChanges( differ, markers, writer ) → void

Parameters

Returns

Fires

convertSelection( selection, markers, writer ) → void

Parameters

Returns

Fires

delegate( events ) → EmitterMixinDelegateChain inherited

Parameters

Returns

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

Type parameters

Parameters

Returns

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

Type parameters

Parameters

Returns

off( event, callback ) → void inherited

Parameters

Returns

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

Type parameters

Parameters

Returns

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

Type parameters

Parameters

Returns

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

Parameters

Returns

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

Parameters

Returns

_addConsumablesForInsert( consumable, walkerValues ) → ModelConsumable Lock icon private

Parameters

Returns

_addConsumablesForRange( consumable, range, type ) → ModelConsumable Lock icon private

Parameters

Returns

_addConsumablesForSelection( consumable, selection, markers ) → ModelConsumable Lock icon private

Parameters

Returns

_convertAttribute( range, key, oldValue, newValue, conversionApi ) → void Lock icon private

Parameters

Returns

Fires

_convertInsert( range, conversionApi, options = { [options.doNotAddConsumables] } ) → void Lock icon private

Parameters

Returns

Fires

_convertMarkerAdd( markerName, markerRange, conversionApi ) → void Lock icon private

Parameters

Returns

Fires

_convertMarkerRemove( markerName, markerRange, conversionApi ) → void Lock icon private

Parameters

Returns

Fires

_convertReinsert( range, conversionApi ) → void Lock icon private

Parameters

Returns

Fires

_convertRemove( position, length, name, conversionApi ) → void Lock icon private

Parameters

Returns

`_conversionApi : Pick<DowncastConversionApi, 'dispatcher' | 'mapper' | 'schema'>`
internalreadonly

`_firedEventsMap : WeakMap<DowncastConversionApi, Map<unknown, Set<string>>>`
privatereadonly

`constructor( conversionApi )`

`convert( range, markers, writer, options ) → void`

`convertChanges( differ, markers, writer ) → void`

`convertSelection( selection, markers, writer ) → void`

`delegate( events ) → EmitterMixinDelegateChain`
inherited

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

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

`off( event, callback ) → void`
inherited

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

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

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

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

`_addConsumablesForInsert( consumable, walkerValues ) → ModelConsumable`
private

`_addConsumablesForRange( consumable, range, type ) → ModelConsumable`
private

`_addConsumablesForSelection( consumable, selection, markers ) → ModelConsumable`
private

`_convertAttribute( range, key, oldValue, newValue, conversionApi ) → void`
private

`_convertInsert( range, conversionApi, options = { [options.doNotAddConsumables] } ) → void`
private

`_convertMarkerAdd( markerName, markerRange, conversionApi ) → void`
private

`_convertMarkerRemove( markerName, markerRange, conversionApi ) → void`
private

`_convertReinsert( range, conversionApi ) → void`
private

`_convertRemove( position, length, name, conversionApi ) → void`
private

`_createConversionApi( writer, refreshedItems, options ) → DowncastConversionApi`
private

`_reduceChanges( changes ) → Iterable<DifferItem | DifferItemReinsert>`
private

`_testAndFire( type, data, conversionApi ) → void`
private

`_testAndFireAddAttributes( item, conversionApi ) → void`
private

`addMarker( eventInfo, data, conversionApi )`

`attribute( eventInfo, data, conversionApi )`

`cleanSelection( eventInfo, data, conversionApi )`

`insert( eventInfo, data, conversionApi )`

`reduceChanges( eventInfo, data )`

`remove( eventInfo, data, conversionApi )`

`removeMarker( eventInfo, data, conversionApi )`

`selection( eventInfo, data, conversionApi )`