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Class

ModelSelection (engine/model)

@ckeditor/ckeditor5-engine/src/model/selection

class
See source

Selection is a set of ranges. It has a direction specified by its anchor and focus (it can be forward or backward). Additionally, selection may have its own attributes (think – whether text typed in in this selection should have those attributes – e.g. whether you type a bolded text).

Filtering

Properties

  • readonly

    anchor : null | ModelPosition

    See source

    Selection anchor. Anchor is the position from which the selection was started. If a user is making a selection by dragging the mouse, the anchor is where the user pressed the mouse button (the beginning of the selection).

    Anchor and focus define the direction of the selection, which is important when expanding/shrinking selection. The focus moves, while the anchor should remain in the same place.

    Anchor is always set to the start or end position of the last of selection's ranges. Whether it is the start or end depends on the specified options.backward. See the setTo() method.

    May be set to null if there are no ranges in the selection.

  • readonly

    focus : null | ModelPosition

    See source

    Selection focus. Focus is the position where the selection ends. If a user is making a selection by dragging the mouse, the focus is where the mouse cursor is.

    May be set to null if there are no ranges in the selection.

  • readonly

    isBackward : boolean

    See source

    Specifies whether the selection's focus precedes the selection's anchor.

  • readonly

    isCollapsed : boolean

    See source

    Whether the selection is collapsed. Selection is collapsed when there is exactly one range in it and it is collapsed.

  • readonly

    rangeCount : number

    See source

    Returns the number of ranges in the selection.

  • internal

    _ranges : Array<ModelRange>

    See source

  • protected

    _attrs : Map<string, unknown>

    See source

    List of attributes set on current selection.

  • private

    _lastRangeBackward : boolean

    See source

    Specifies whether the last added range was added as a backward or forward range.

Methods

  • internal

    constructor( args )

    See source

    Creates a new selection instance based on the given selectable or creates an empty selection if no arguments were passed.

    // Creates empty selection without ranges.
const selection = writer.createSelection();

// Creates selection at the given range.
const range = writer.createRange( start, end );
const selection = writer.createSelection( range );

// Creates selection at the given ranges
const ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];
const selection = writer.createSelection( ranges );

// Creates selection from the other selection.
// Note: It doesn't copy selection attributes.
const otherSelection = writer.createSelection();
const selection = writer.createSelection( otherSelection );

// Creates selection from the given document selection.
// Note: It doesn't copy selection attributes.
const documentSelection = model.document.selection;
const selection = writer.createSelection( documentSelection );

// Creates selection at the given position.
const position = writer.createPositionFromPath( root, path );
const selection = writer.createSelection( position );

// Creates selection at the given offset in the given element.
const paragraph = writer.createElement( 'paragraph' );
const selection = writer.createSelection( paragraph, offset );

// Creates a range inside an element which starts before the
// first child of that element and ends after the last child of that element.
const selection = writer.createSelection( paragraph, 'in' );

// Creates a range on an item which starts before the item and ends
// just after the item.
const selection = writer.createSelection( paragraph, 'on' );

    Selection's constructor allow passing additional options ('backward') as the last argument.

    // Creates backward selection.
const selection = writer.createSelection( range, { backward: true } );

    Parameters

    args : tuple

  • containsEntireContent( element ) → boolean

    See source

    Checks whether the selection contains the entire content of the given element. This means that selection must start at a position touching the element's start and ends at position touching the element's end.

    By default, this method will check whether the entire content of the selection's current root is selected. Useful to check if e.g. the user has just pressed Ctrl + A.

    Parameters

    element : ModelElement

    Defaults to ...

    Returns

    boolean

  • 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).

  • getAttribute( key ) → unknown

    See source

    Gets an attribute value for given key or undefined if that attribute is not set on the selection.

    Parameters

    key : string

    Key of attribute to look for.

    Returns

    unknown

    Attribute value or undefined.

  • getAttributeKeys() → IterableIterator<string>

    See source

    Returns iterable that iterates over this selection's attribute keys.

    Returns

    IterableIterator<string>

  • getAttributes() → IterableIterator<tuple>

    See source

    Returns iterable that iterates over this selection's attributes.

    Attributes are returned as arrays containing two items. First one is attribute key and second is attribute value. This format is accepted by native Map object and also can be passed in Node constructor.

    Returns

    IterableIterator<tuple>

  • getFirstPosition() → null | ModelPosition

    See source

    Returns the first position in the selection. First position is the position that is before any other position in the selection.

    Returns null if there are no ranges in selection.

    Returns

    null | ModelPosition

  • getFirstRange() → null | ModelRange

    See source

    Returns a copy of the first range in the selection. First range is the one which start position is before start position of all other ranges (not to confuse with the first range added to the selection).

    Returns null if there are no ranges in selection.

    Returns

    null | ModelRange

  • getLastPosition() → null | ModelPosition

    See source

    Returns the last position in the selection. Last position is the position that is after any other position in the selection.

    Returns null if there are no ranges in selection.

    Returns

    null | ModelPosition

  • getLastRange() → null | ModelRange

    See source

    Returns a copy of the last range in the selection. Last range is the one which end position is after end position of all other ranges (not to confuse with the range most recently added to the selection).

    Returns null if there are no ranges in selection.

    Returns

    null | ModelRange

  • getRanges() → IterableIterator<ModelRange>

    See source

    Returns an iterable object that iterates over copies of selection ranges.

    Returns

    IterableIterator<ModelRange>

  • getSelectedBlocks() → IterableIterator<ModelElement>

    See source

    Gets elements of type "block" touched by the selection.

    This method's result can be used for example to apply block styling to all blocks covered by this selection.

    Note: getSelectedBlocks() returns blocks that are nested in other non-block elements but will not return blocks nested in other blocks.

    In this case the function will return exactly all 3 paragraphs (note: <blockQuote> is not a block itself):

    <paragraph>[a</paragraph>
<blockQuote>
	<paragraph>b</paragraph>
</blockQuote>
<paragraph>c]d</paragraph>

    In this case the paragraph will also be returned, despite the collapsed selection:

    <paragraph>[]a</paragraph>

    In such a scenario, however, only blocks A, B & E will be returned as blocks C & D are nested in block B:

    [<blockA></blockA>
<blockB>
	<blockC></blockC>
	<blockD></blockD>
</blockB>
<blockE></blockE>]

    If the selection is inside a block all the inner blocks (A & B) are returned:

    <block>
	<blockA>[a</blockA>
	<blockB>b]</blockB>
</block>

    Special case: Selection ignores first and/or last blocks if nothing (from user perspective) is selected in them.

    // Selection ends and the beginning of the last block.
<paragraph>[a</paragraph>
<paragraph>b</paragraph>
<paragraph>]c</paragraph> // This block will not be returned

// Selection begins at the end of the first block.
<paragraph>a[</paragraph> // This block will not be returned
<paragraph>b</paragraph>
<paragraph>c]</paragraph>

// Selection begings at the end of the first block and ends at the beginning of the last block.
<paragraph>a[</paragraph> // This block will not be returned
<paragraph>b</paragraph>
<paragraph>]c</paragraph> // This block will not be returned

    Returns

    IterableIterator<ModelElement>

  • getSelectedElement() → null | ModelElement

    See source

    Returns the selected element. Element is considered as selected if there is only one range in the selection, and that range contains exactly one element. Returns null if there is no selected element.

    Returns

    null | ModelElement

  • hasAttribute( key ) → boolean

    See source

    Checks if the selection has an attribute for given key.

    Parameters

    key : string

    Key of attribute to check.

    Returns

    boolean

    true if attribute with given key is set on selection, false otherwise.

  • inherited

    is( type ) → this is ModelElement | ModelRootElement

    See source

    Checks whether the object is of type ModelElement or its subclass.

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

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

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

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

    Parameters

    type : 'element' | 'model:element'

    Returns

    this is ModelElement | ModelRootElement

  • inherited

    is( type ) → this is ModelRootElement

    See source

    Checks whether the object is of type ModelRootElement.

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

rootElement.is( 'view:element' ); // -> false
rootElement.is( 'documentFragment' ); // -> false

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

    rootElement.is( 'rootElement', '$root' ); // -> same as above

    Parameters

    type : 'rootElement' | 'model:rootElement'

    Returns

    this is ModelRootElement

  • inherited

    is( type ) → this is ModelText

    See source

    Checks whether the object is of type ModelText.

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

text.is( 'view:$text' ); // -> false
text.is( 'documentSelection' ); // -> false

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

    Parameters

    type : '$text' | 'model:$text'

    Returns

    this is ModelText

  • inherited

    is( type ) → this is ModelRange | ModelLiveRange

    See source

    Checks whether the object is of type ModelRange or its subclass.

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

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

    Parameters

    type : 'range' | 'model:range'

    Returns

    this is ModelRange | ModelLiveRange

  • inherited

    is( type ) → this is ModelLivePosition

    See source

    Checks whether the object is of type ModelLivePosition.

    livePosition.is( 'position' ); // -> true
livePosition.is( 'model:position' ); // -> true
livePosition.is( 'liveposition' ); // -> true
livePosition.is( 'model:livePosition' ); // -> true

livePosition.is( 'view:position' ); // -> false
livePosition.is( 'documentSelection' ); // -> false

    Parameters

    type : 'livePosition' | 'model:livePosition'

    Returns

    this is ModelLivePosition

  • inherited

    is( type ) → this is ModelPosition | ModelLivePosition

    See source

    Checks whether the object is of type ModelPosition or its subclass.

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

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

    Parameters

    type : 'position' | 'model:position'

    Returns

    this is ModelPosition | ModelLivePosition

  • inherited

    is( type ) → this is ModelLiveRange

    See source

    Checks whether the object is of type ModelLiveRange.

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

liveRange.is( 'view:range' ); // -> false
liveRange.is( 'documentSelection' ); // -> false

    Parameters

    type : 'liveRange' | 'model:liveRange'

    Returns

    this is ModelLiveRange

  • inherited

    is( type ) → this is Marker

    See source

    Checks whether the object is of type Marker.

    marker.is( 'marker' ); // -> true
marker.is( 'model:marker' ); // -> true

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

    Parameters

    type : 'marker' | 'model:marker'

    Returns

    this is Marker

  • inherited

    is( type, name ) → boolean

    See source

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

    rootElement.is( 'rootElement', '$root' );

    Type parameters

    N : extends string

    Parameters

    type : 'rootElement' | 'model:rootElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

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

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

    Type parameters

    N : extends string

    Parameters

    type : 'element' | 'model:element'
    name : N

    Returns

    boolean

  • inherited

    is( type ) → this is ModelTextProxy

    See source

    Checks whether the object is of type ModelTextProxy.

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

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

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

    Parameters

    type : '$textProxy' | 'model:$textProxy'

    Returns

    this is ModelTextProxy

  • inherited

    is( type ) → this is ModelDocumentSelection

    See source

    Checks whether the object is of type ModelDocumentSelection.

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

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

    Parameters

    type : 'documentSelection' | 'model:documentSelection'

    Returns

    this is ModelDocumentSelection

  • inherited

    is( type ) → this is ModelSelection | ModelDocumentSelection

    See source

    Checks whether the object is of type ModelSelection or ModelDocumentSelection.

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

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

    Parameters

    type : 'selection' | 'model:selection'

    Returns

    this is ModelSelection | ModelDocumentSelection

  • inherited

    is( type ) → this is ModelDocumentFragment

    See source

    Checks whether the object is of type ModelDocumentFragment.

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

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

    Parameters

    type : 'documentFragment' | 'model:documentFragment'

    Returns

    this is ModelDocumentFragment

  • inherited

    is( type ) → this is ModelNode | ModelText | ModelElement | ModelRootElement

    See source

    Checks whether the object is of type ModelNode or its subclass.

    This method is useful when processing model objects that are of unknown type. For example, a function may return a ModelDocumentFragment or a ModelNode 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 view 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:

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

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

    imageElement.is( 'element', 'imageBlock' ); // -> true
imageElement.is( 'element', 'imageBlock' ); // -> same as above
imageElement.is( 'model:element', 'imageBlock' ); // -> same as above, but more precise

    Parameters

    type : 'node' | 'model:node'

    Returns

    this is ModelNode | ModelText | ModelElement | ModelRootElement

  • isEqual( otherSelection ) → boolean

    See source

    Checks whether this selection is equal to the given selection. Selections are equal if they have the same directions, the same number of ranges and all ranges from one selection equal to ranges from the another selection.

    Parameters

    otherSelection : ModelSelection | ModelDocumentSelection

    Selection to compare with.

    Returns

    boolean

    true if selections are equal, false otherwise.

  • 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

  • removeAttribute( key ) → void

    See source

    Removes an attribute with given key from the selection.

    If given attribute was set on the selection, fires the event-change:range event with removed attribute key.

    Parameters

    key : string

    Key of attribute to remove.

    Returns

    void

    Fires

  • setAttribute( key, value ) → void

    See source

    Sets attribute on the selection. If attribute with the same key already is set, it's value is overwritten.

    If the attribute value has changed, fires the event-change:range event with the attribute key.

    Parameters

    key : string

    Key of attribute to set.

    value : unknown

    Attribute value.

    Returns

    void

    Fires

  • setFocus( itemOrPosition, [ offset ] ) → void

    See source

    Moves focus to the specified location.

    The location can be specified in the same form as writer.createPositionAt() parameters.

    Parameters

    itemOrPosition : ModelPosition | ModelItem
    [ offset ] : ModelPositionOffset

    Offset or one of the flags. Used only when first parameter is a model item.

    Returns

    void

    Fires

  • setTo( args ) → void

    See source

    Sets this selection's ranges and direction to the specified location based on the given selectable.

    // Removes all selection's ranges.
selection.setTo( null );

// Sets selection to the given range.
const range = writer.createRange( start, end );
selection.setTo( range );

// Sets selection to given ranges.
const ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];
selection.setTo( ranges );

// Sets selection to other selection.
// Note: It doesn't copy selection attributes.
const otherSelection = writer.createSelection();
selection.setTo( otherSelection );

// Sets selection to the given document selection.
// Note: It doesn't copy selection attributes.
const documentSelection = new ModelDocumentSelection( doc );
selection.setTo( documentSelection );

// Sets collapsed selection at the given position.
const position = writer.createPositionFromPath( root, path );
selection.setTo( position );

// Sets collapsed selection at the position of the given node and an offset.
selection.setTo( paragraph, offset );

    Creates a range inside an element which starts before the first child of

    • that element and ends after the last child of that element.
    selection.setTo( paragraph, 'in' );

    Creates a range on an item which starts before the item and ends just after the item.

    selection.setTo( paragraph, 'on' );

    Selection#setTo()' method allow passing additional options (backward) as the last argument.

    // Sets backward selection.
const selection = writer.createSelection( range, { backward: true } );

    Parameters

    args : tuple

    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

  • protected

    _checkRange( range ) → void

    See source

    Checks if given range intersects with ranges that are already in the selection. Throws an error if it does.

    Parameters

    range : ModelRange

    Returns

    void

  • protected

    _popRange() → void

    See source

    Removes most recently added range from the selection.

    Returns

    void

  • protected

    _pushRange( range ) → void

    See source

    Adds given range to internal ranges array. Throws an error if given range is intersecting with any range that is already stored in this selection.

    Parameters

    range : ModelRange

    Returns

    void

  • protected

    _removeAllRanges() → void

    See source

    Deletes ranges from internal range array. Uses _popRange to ensure proper ranges removal.

    Returns

    void

  • protected

    _replaceAllRanges( ranges ) → void

    See source

    Replaces all the ranges by the given ones. Uses _popRange and _pushRange to ensure proper ranges removal and addition.

    Parameters

    ranges : Array<ModelRange>

    Returns

    void

  • protected

    _setRanges( newRanges, isLastBackward ) → void

    See source

    Replaces all ranges that were added to the selection with given array of ranges. Last range of the array is treated like the last added range and is used to set anchor and focus. Accepts a flag describing in which direction the selection is made.

    Parameters

    newRanges : Iterable<ModelRange>

    Ranges to set.

    isLastBackward : boolean

    Flag describing if last added range was selected forward - from start to end (false) or backward - from end to start (true).

    Defaults to false

    Returns

    void

    Fires

Events

  • change:attribute( eventInfo, directChange = { directChange.attributeKeys, directChange.directChange } )

    See source

    Fired when selection attribute changed.

    Parameters

    eventInfo : EventInfo

    An object containing information about the fired event.

    directChange : object

    In case of ModelSelection class it is always set to true which indicates that the selection change was caused by a direct use of selection's API. The ModelDocumentSelection, however, may change because its attributes were directly changed through the writer or because its position was changed in the model and its attributes were refreshed (which means an indirect change). The indirect change does not occur in case of normal (detached) selections because they are "static" (as "not live") which mean that they are not updated once the document changes.

    Properties
    directChange.attributeKeys : Array<string>
    directChange.directChange : boolean

  • change:range( eventInfo, directChange = { directChange.directChange } )

    See source

    Fired when selection range(s) changed.

    Parameters

    eventInfo : EventInfo

    An object containing information about the fired event.

    directChange : object

    In case of ModelSelection class it is always set to true which indicates that the selection change was caused by a direct use of selection's API. The ModelDocumentSelection, however, may change because its position was directly changed through the writer or because its position was changed because the structure of the model has been changed (which means an indirect change). The indirect change does not occur in case of normal (detached) selections because they are "static" (as "not live") which mean that they are not updated once the document changes.

    Properties
    directChange.directChange : boolean