Class: LexicalNode
lexical.LexicalNode
Hierarchy
-
LexicalNode↳
TextNode
Constructors
constructor
• new LexicalNode(key?): LexicalNode
Parameters
| Name | Type |
|---|---|
key? | string |
Returns
Defined in
packages/lexical/src/LexicalNode.ts:272
Properties
constructor
• constructor: KlassConstructor<typeof LexicalNode>
Defined in
packages/lexical/src/LexicalNode.ts:167
importDOM
▪ Static Optional importDOM: () => null | DOMConversionMap<any>
Type declaration
▸ (): null | DOMConversionMap<any>
Returns
null | DOMConversionMap<any>
Defined in
packages/lexical/src/LexicalNode.ts:270
Methods
afterCloneFrom
▸ afterCloneFrom(prevNode): void
Perform any state updates on the clone of prevNode that are not already
handled by the constructor call in the static clone method. If you have
state to update in your clone that is not handled directly by the
constructor, it is advisable to override this method but it is required
to include a call to super.afterCloneFrom(prevNode) in your
implementation. This is only intended to be called by
$cloneWithProperties function or via a super call.
Parameters
| Name | Type |
|---|---|
prevNode | this |
Returns
void
Example
class ClassesTextNode extends TextNode {
// Not shown: static getType, static importJSON, exportJSON, createDOM, updateDOM
__classes = new Set<string>();
static clone(node: ClassesTextNode): ClassesTextNode {
// The inherited TextNode constructor is used here, so
// classes is not set by this method.
return new ClassesTextNode(node.__text, node.__key);
}
afterCloneFrom(node: this): void {
// This calls TextNode.afterCloneFrom and LexicalNode.afterCloneFrom
// for necessary state updates
super.afterCloneFrom(node);
this.__addClasses(node.__classes);
}
// This method is a private implementation detail, it is not
// suitable for the public API because it does not call getWritable
__addClasses(classNames: Iterable<string>): this {
for (const className of classNames) {
this.__classes.add(className);
}
return this;
}
addClass(...classNames: string[]): this {
return this.getWritable().__addClasses(classNames);
}
removeClass(...classNames: string[]): this {
const node = this.getWritable();
for (const className of classNames) {
this.__classes.delete(className);
}
return this;
}
getClasses(): Set<string> {
return this.getLatest().__classes;
}
}
Defined in
packages/lexical/src/LexicalNode.ts:263
createDOM
▸ createDOM(_config, _editor): HTMLElement
Called during the reconciliation process to determine which nodes to insert into the DOM for this Lexical Node.
This method must return exactly one HTMLElement. Nested elements are not supported.
Do not attempt to update the Lexical EditorState during this phase of the update lifecyle.
Parameters
| Name | Type | Description |
|---|---|---|
_config | EditorConfig | allows access to things like the EditorTheme (to apply classes) during reconciliation. |
_editor | LexicalEditor | allows access to the editor for context during reconciliation. |
Returns
HTMLElement
Defined in
packages/lexical/src/LexicalNode.ts:820
createParentElementNode
▸ createParentElementNode(): ElementNode
The creation logic for any required parent. Should be implemented if isParentRequired returns true.
Returns
Defined in
packages/lexical/src/LexicalNode.ts:1099
exportDOM
▸ exportDOM(editor): DOMExportOutput
Controls how the this node is serialized to HTML. This is important for copy and paste between Lexical and non-Lexical editors, or Lexical editors with different namespaces, in which case the primary transfer format is HTML. It's also important if you're serializing to HTML for any other reason via $generateHtmlFromNodes. You could also use this method to build your own HTML renderer.
Parameters
| Name | Type |
|---|---|
editor | LexicalEditor |
Returns
Defined in
packages/lexical/src/LexicalNode.ts:850
exportJSON
▸ exportJSON(): SerializedLexicalNode
Controls how the this node is serialized to JSON. This is important for copy and paste between Lexical editors sharing the same namespace. It's also important if you're serializing to JSON for persistent storage somewhere. See Serialization & Deserialization.
Returns
Defined in
packages/lexical/src/LexicalNode.ts:862
getCommonAncestor
▸ getCommonAncestor<T>(node): null | T
Returns the closest common ancestor of this node and the provided one or null if one cannot be found.
Type parameters
| Name | Type |
|---|---|
T | extends ElementNode = ElementNode |
Parameters
| Name | Type | Description |
|---|---|---|
node | LexicalNode | the other node to find the common ancestor of. |
Returns
null | T
Defined in
packages/lexical/src/LexicalNode.ts:558
getIndexWithinParent
▸ getIndexWithinParent(): number
Returns the zero-based index of this node within the parent.
Returns
number
Defined in
packages/lexical/src/LexicalNode.ts:386
getKey
▸ getKey(): string
Returns this nodes key.
Returns
string
Defined in
packages/lexical/src/LexicalNode.ts:378
getLatest
▸ getLatest(): this
Returns the latest version of the node from the active EditorState. This is used to avoid getting values from stale node references.
Returns
this
Defined in
packages/lexical/src/LexicalNode.ts:744
getNextSibling
▸ getNextSibling<T>(): null | T
Returns the "next" siblings - that is, the node that comes after this one in the same parent
Type parameters
| Name | Type |
|---|---|
T | extends LexicalNode |
Returns
null | T
Defined in
packages/lexical/src/LexicalNode.ts:531
getNextSiblings
▸ getNextSiblings<T>(): T[]
Returns all "next" siblings - that is, the nodes that come between this one and the last child of it's parent, inclusive.
Type parameters
| Name | Type |
|---|---|
T | extends LexicalNode |
Returns
T[]
Defined in
packages/lexical/src/LexicalNode.ts:542
getNodesBetween
▸ getNodesBetween(targetNode): LexicalNode[]
Returns a list of nodes that are between this node and the target node in the EditorState.
Parameters
| Name | Type | Description |
|---|---|---|
targetNode | LexicalNode | the node that marks the other end of the range of nodes to be returned. |
Returns
Defined in
packages/lexical/src/LexicalNode.ts:663
getParent
▸ getParent<T>(): null | T
Returns the parent of this node, or null if none is found.
Type parameters
| Name | Type |
|---|---|
T | extends ElementNode |
Returns
null | T
Defined in
packages/lexical/src/LexicalNode.ts:406
getParentKeys
▸ getParentKeys(): string[]
Returns a list of the keys of every ancestor of this node, all the way up to the RootNode.
Returns
string[]
Defined in
packages/lexical/src/LexicalNode.ts:483
getParentOrThrow
▸ getParentOrThrow<T>(): T
Returns the parent of this node, or throws if none is found.
Type parameters
| Name | Type |
|---|---|
T | extends ElementNode |
Returns
T
Defined in
packages/lexical/src/LexicalNode.ts:417
getParents
▸ getParents(): ElementNode[]
Returns a list of the every ancestor of this node, all the way up to the RootNode.
Returns
Defined in
packages/lexical/src/LexicalNode.ts:468
getPreviousSibling
▸ getPreviousSibling<T>(): null | T
Returns the "previous" siblings - that is, the node that comes before this one in the same parent.
Type parameters
| Name | Type |
|---|---|
T | extends LexicalNode |
Returns
null | T
Defined in
packages/lexical/src/LexicalNode.ts:498
getPreviousSiblings
▸ getPreviousSiblings<T>(): T[]
Returns the "previous" siblings - that is, the nodes that come between this one and the first child of it's parent, inclusive.
Type parameters
| Name | Type |
|---|---|
T | extends LexicalNode |
Returns
T[]
Defined in
packages/lexical/src/LexicalNode.ts:509
getTextContent
▸ getTextContent(): string
Returns the text content of the node. Override this for custom nodes that should have a representation in plain text format (for copy + paste, for example)
Returns
string
Defined in
packages/lexical/src/LexicalNode.ts:794
getTextContentSize
▸ getTextContentSize(): number
Returns the length of the string produced by calling getTextContent on this node.
Returns
number
Defined in
packages/lexical/src/LexicalNode.ts:802
getTopLevelElement
▸ getTopLevelElement(): null | ElementNode | DecoratorNode<unknown>
Returns the highest (in the EditorState tree) non-root ancestor of this node, or null if none is found. See $isRootOrShadowRoot for more information on which Elements comprise "roots".
Returns
null | ElementNode | DecoratorNode<unknown>
Defined in
packages/lexical/src/LexicalNode.ts:430
getTopLevelElementOrThrow
▸ getTopLevelElementOrThrow(): ElementNode | DecoratorNode<unknown>
Returns the highest (in the EditorState tree) non-root ancestor of this node, or throws if none is found. See $isRootOrShadowRoot for more information on which Elements comprise "roots".
Returns
ElementNode | DecoratorNode<unknown>
Defined in
packages/lexical/src/LexicalNode.ts:451
getType
▸ getType(): string
Returns the string type of this node.
Returns
string
Defined in
packages/lexical/src/LexicalNode.ts:291
getWritable
▸ getWritable(): this
Returns a mutable version of the node using $cloneWithProperties if necessary. Will throw an error if called outside of a Lexical Editor LexicalEditor.update callback.
Returns
this
Defined in
packages/lexical/src/LexicalNode.ts:761
insertAfter
▸ insertAfter(nodeToInsert, restoreSelection?): LexicalNode
Inserts a node after this LexicalNode (as the next sibling).
Parameters
| Name | Type | Default value | Description |
|---|---|---|---|
nodeToInsert | LexicalNode | undefined | The node to insert after this one. |
restoreSelection | boolean | true | Whether or not to attempt to resolve the selection to the appropriate place after the operation is complete. |
Returns
Defined in
packages/lexical/src/LexicalNode.ts:984
insertBefore
▸ insertBefore(nodeToInsert, restoreSelection?): LexicalNode
Inserts a node before this LexicalNode (as the previous sibling).
Parameters
| Name | Type | Default value | Description |
|---|---|---|---|
nodeToInsert | LexicalNode | undefined | The node to insert before this one. |
restoreSelection | boolean | true | Whether or not to attempt to resolve the selection to the appropriate place after the operation is complete. |
Returns
Defined in
packages/lexical/src/LexicalNode.ts:1051
is
▸ is(object): boolean
Returns true if the provided node is the exact same one as this node, from Lexical's perspective. Always use this instead of referential equality.
Parameters
| Name | Type | Description |
|---|---|---|
object | undefined | null | LexicalNode | the node to perform the equality comparison on. |
Returns
boolean
Defined in
packages/lexical/src/LexicalNode.ts:590
isAttached
▸ isAttached(): boolean
Returns true if there is a path between this node and the RootNode, false otherwise. This is a way of determining if the node is "attached" EditorState. Unattached nodes won't be reconciled and will ultimatelt be cleaned up by the Lexical GC.
Returns
boolean
Defined in
packages/lexical/src/LexicalNode.ts:308
isBefore
▸ isBefore(targetNode): boolean
Returns true if this node logical precedes the target node in the editor state.
Parameters
| Name | Type | Description |
|---|---|---|
targetNode | LexicalNode | the node we're testing to see if it's after this one. |
Returns
boolean
Defined in
packages/lexical/src/LexicalNode.ts:602
isDirty
▸ isDirty(): boolean
Returns true if this node has been marked dirty during this update cycle.
Returns
boolean
Defined in
packages/lexical/src/LexicalNode.ts:733
isInline
▸ isInline(): boolean
Returns
boolean
Defined in
packages/lexical/src/LexicalNode.ts:295
isParentOf
▸ isParentOf(targetNode): boolean
Returns true if this node is the parent of the target node, false otherwise.
Parameters
| Name | Type | Description |
|---|---|---|
targetNode | LexicalNode | the would-be child node. |
Returns
boolean
Defined in
packages/lexical/src/LexicalNode.ts:641
isParentRequired
▸ isParentRequired(): boolean
Whether or not this node has a required parent. Used during copy + paste operations to normalize nodes that would otherwise be orphaned. For example, ListItemNodes without a ListNode parent or TextNodes with a ParagraphNode parent.
Returns
boolean
Defined in
packages/lexical/src/LexicalNode.ts:1091
isSelected
▸ isSelected(selection?): boolean
Returns true if this node is contained within the provided Selection., false otherwise. Relies on the algorithms implemented in BaseSelection.getNodes to determine what's included.
Parameters
| Name | Type | Description |
|---|---|---|
selection? | null | BaseSelection | The selection that we want to determine if the node is in. |
Returns
boolean
Defined in
packages/lexical/src/LexicalNode.ts:332
markDirty
▸ markDirty(): void
Marks a node dirty, triggering transforms and forcing it to be reconciled during the update cycle.
Returns
void
Defined in
packages/lexical/src/LexicalNode.ts:1160
remove
▸ remove(preserveEmptyParent?): void
Removes this LexicalNode from the EditorState. If the node isn't re-inserted somewhere, the Lexical garbage collector will eventually clean it up.
Parameters
| Name | Type | Description |
|---|---|---|
preserveEmptyParent? | boolean | If falsy, the node's parent will be removed if it's empty after the removal operation. This is the default behavior, subject to other node heuristics such as ElementNode#canBeEmpty |
Returns
void
Defined in
packages/lexical/src/LexicalNode.ts:903
replace
▸ replace<N>(replaceWith, includeChildren?): N
Replaces this LexicalNode with the provided node, optionally transferring the children of the replaced node to the replacing node.
Type parameters
| Name | Type |
|---|---|
N | extends LexicalNode |
Parameters
| Name | Type | Description |
|---|---|---|
replaceWith | N | The node to replace this one with. |
includeChildren? | boolean | Whether or not to transfer the children of this node to the replacing node. |
Returns
N
Defined in
packages/lexical/src/LexicalNode.ts:914
selectEnd
▸ selectEnd(): RangeSelection
Returns
Defined in
packages/lexical/src/LexicalNode.ts:1107
selectNext
▸ selectNext(anchorOffset?, focusOffset?): RangeSelection
Moves selection to the next sibling of this node, at the specified offsets.
Parameters
| Name | Type | Description |
|---|---|---|
anchorOffset? | number | The anchor offset for selection. |
focusOffset? | number | The focus offset for selection |
Returns
Defined in
packages/lexical/src/LexicalNode.ts:1139
selectPrevious
▸ selectPrevious(anchorOffset?, focusOffset?): RangeSelection
Moves selection to the previous sibling of this node, at the specified offsets.
Parameters
| Name | Type | Description |
|---|---|---|
anchorOffset? | number | The anchor offset for selection. |
focusOffset? | number | The focus offset for selection |
Returns
Defined in
packages/lexical/src/LexicalNode.ts:1117
selectStart
▸ selectStart(): RangeSelection
Returns
Defined in
packages/lexical/src/LexicalNode.ts:1103
updateDOM
▸ updateDOM(_prevNode, _dom, _config): boolean
Called when a node changes and should update the DOM in whatever way is necessary to make it align with any changes that might have happened during the update.
Returning "true" here will cause lexical to unmount and recreate the DOM node (by calling createDOM). You would need to do this if the element tag changes, for instance.
Parameters
| Name | Type |
|---|---|
_prevNode | unknown |
_dom | HTMLElement |
_config | EditorConfig |
Returns
boolean
Defined in
packages/lexical/src/LexicalNode.ts:834
clone
▸ clone(_data): LexicalNode
Clones this node, creating a new node with a different key and adding it to the EditorState (but not attaching it anywhere!). All nodes must implement this method.
Parameters
| Name | Type |
|---|---|
_data | unknown |
Returns
Defined in
packages/lexical/src/LexicalNode.ts:205
getType
▸ getType(): string
Returns the string type of this node. Every node must implement this and it MUST BE UNIQUE amongst nodes registered on the editor.
Returns
string
Defined in
packages/lexical/src/LexicalNode.ts:191
importJSON
▸ importJSON(_serializedNode): LexicalNode
Controls how the this node is deserialized from JSON. This is usually boilerplate, but provides an abstraction between the node implementation and serialized interface that can be important if you ever make breaking changes to a node schema (by adding or removing properties). See Serialization & Deserialization.
Parameters
| Name | Type |
|---|---|
_serializedNode | SerializedLexicalNode |
Returns
Defined in
packages/lexical/src/LexicalNode.ts:873
transform
▸ transform(): null | (node: LexicalNode) => void
Registers the returned function as a transform on the node during Editor initialization. Most such use cases should be addressed via the LexicalEditor.registerNodeTransform API.
Experimental - use at your own risk.
Returns
null | (node: LexicalNode) => void