BlockSuite API Documentation / @blocksuite/store / Y / XmlElement

Class: XmlElement<KV>

An YXmlElement imitates the behavior of a https://developer.mozilla.org/en-US/docs/Web/API/Element|Dom Element

• An YXmlElement has attributes (key value pairs)
• An YXmlElement has childElements that must inherit from YXmlElement

Extends

• XmlFragment

Type parameters

• KV extends Object = Object

Constructors

new XmlElement(nodeName)

new XmlElement<KV>(nodeName?): XmlElement<KV>

Parameters

• nodeName?: string

Returns

XmlElement<KV>

Overrides

XmlFragment.constructor

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:18

Properties

_dEH

_dEH: EventHandler<YEvent<any>[], Transaction>

Deep event handlers

Inherited from

XmlFragment._dEH

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:46

---

_eH

_eH: EventHandler<YXmlEvent, Transaction>

Event handlers

Inherited from

XmlFragment._eH

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:41

---

_item

_item: null | Item

Inherited from

XmlFragment._item

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:23

---

_length

_length: number

Inherited from

XmlFragment._length

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:36

---

_map

_map: Map<string, Item>

Inherited from

XmlFragment._map

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:27

---

_prelimAttrs

_prelimAttrs: null | Map<string, any>

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:23

---

_prelimContent

_prelimContent: null | any[]

Inherited from

XmlFragment._prelimContent

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:68

---

_searchMarker

_searchMarker: null | ArraySearchMarker[]

Inherited from

XmlFragment._searchMarker

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:50

---

_start

_start: null | Item

Inherited from

XmlFragment._start

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:31

---

doc

doc: null | Doc

Inherited from

XmlFragment.doc

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:35

---

nodeName

nodeName: string

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:19

Accessors

_first

get _first(): null | Item

The first non-deleted item

Returns

null | Item

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:81

---

firstChild

get firstChild(): null | XmlText | XmlElement<Object>

Returns

null | XmlText | XmlElement<Object>

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:72

---

length

get length(): number

Returns

number

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:91

---

nextSibling

get nextSibling(): null | XmlText | XmlElement<Object>

Returns

null | XmlText | XmlElement<Object>

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:27

---

parent

get parent(): null | AbstractType<any>

Returns

null | AbstractType<any>

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:54

---

prevSibling

get prevSibling(): null | XmlText | XmlElement<Object>

Returns

null | XmlText | XmlElement<Object>

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:33

Methods

_callObserver()

_callObserver(transaction, _parentSubs): void

Creates YEvent and calls all type observers. Must be implemented by each type.

Parameters

• transaction: Transaction

• _parentSubs: Set<null | string>

Keys changed on this type. null if list was modified.

Returns

void

Inherited from

XmlFragment._callObserver

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:89

---

_copy()

_copy(): XmlElement<Object>

Creates an Item with the same effect as this Item (without position effect)

Returns

XmlElement<Object>

Overrides

XmlFragment._copy

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:41

---

_integrate()

_integrate(y, item): void

Integrate this type into the Yjs instance.

• Save this struct in the os
• This type is sent to other client
• Observer functions are fired

Parameters

• y: Doc

The Yjs instance

• item: Item

Returns

void

Inherited from

XmlFragment._integrate

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:85

---

_write()

_write(_encoder): void

Parameters

• _encoder: UpdateEncoderV1 | UpdateEncoderV2

Returns

void

Inherited from

XmlFragment._write

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:77

---

clone()

clone(): XmlElement<KV>

Returns

XmlElement<KV>

Overrides

XmlFragment.clone

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:45

---

createTreeWalker()

createTreeWalker(filter): YXmlTreeWalker

Create a subtree of childNodes.

Parameters

• filter

Function that is called on each child element and returns a Boolean indicating whether the child is to be included in the subtree.

Returns

YXmlTreeWalker

A subtree and a position within it.

Inherited from

XmlFragment.createTreeWalker

Example

const walker = elem.createTreeWalker(dom => dom.nodeName === 'div')
for (let node in walker) {
  // `node` is a div node
  nop(node)
}

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:109

---

delete()

delete(index, length?): void

Deletes elements starting from an index.

Parameters

• index: number

Index at which to start deleting elements

• length?: number

The number of elements to remove. Defaults to 1.

Returns

void

Inherited from

XmlFragment.delete

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:188

---

forEach()

forEach(f): void

Executes a provided function on once on overy child element.

Parameters

• f

A function to execute on every element of this YArray.

Returns

void

Inherited from

XmlFragment.forEach

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:227

---

get()

get(index): XmlElement<Object> | XmlText

Returns the i-th element from a YArray.

Parameters

• index: number

The index of the element to return from the YArray

Returns

XmlElement<Object> | XmlText

Inherited from

XmlFragment.get

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:213

---

getAttribute()

getAttribute<KEY_1>(attributeName): undefined | KV[KEY_1]

Returns an attribute value that belongs to the attribute name.

Type parameters

• KEY_1 extends string

Parameters

• attributeName: KEY_1

The attribute name that identifies the queried value.

Returns

undefined | KV[KEY_1]

The queried attribute value.

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:76

---

getAttributes()

getAttributes(snapshot?): { [Key in string]?: KV[Key] }

Returns all attribute name/value pairs in a JSON Object.

Parameters

• snapshot?: Snapshot

Returns

{ [Key in string]?: KV[Key] }

A JSON Object that describes the attributes.

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:94

---

hasAttribute()

hasAttribute(attributeName): boolean

Returns whether an attribute exists

Parameters

• attributeName: string

The attribute name to check for existence.

Returns

boolean

whether the attribute exists.

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:85

---

insert()

insert(index, content): void

Inserts new content at an index.

Parameters

• index: number

The index to insert content at

• content: (XmlElement<Object> | XmlText)[]

The array of content

Returns

void

Inherited from

XmlFragment.insert

Example

// Insert character 'a' at position 0
 xml.insert(0, [new Y.XmlText('text')])

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:170

---

insertAfter()

insertAfter(ref, content): void

Inserts new content at an index.

Parameters

• ref: null | Item | XmlElement<Object> | XmlText

The index to insert content at

• content: (XmlElement<Object> | XmlText)[]

The array of content

Returns

void

Inherited from

XmlFragment.insertAfter

Example

// Insert character 'a' at position 0
 xml.insert(0, [new Y.XmlText('text')])

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:181

---

observe()

observe(f): void

Observe all events that are created on this type.

Parameters

• f

Observer function

Returns

void

Inherited from

XmlFragment.observe

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:95

---

observeDeep()

observeDeep(f): void

Observe all events that are created by this type and its children.

Parameters

• f

Observer function

Returns

void

Inherited from

XmlFragment.observeDeep

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:101

---

push()

push(content): void

Appends content to this YArray.

Parameters

• content: (XmlElement<Object> | XmlText)[]

Array of content to append.

Returns

void

Inherited from

XmlFragment.push

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:200

---

querySelector()

querySelector(query): null | XmlElement<Object> | XmlText | XmlHook

Returns the first YXmlElement that matches the query. Similar to DOM's querySelector.

Query support:

• tagname TODO:
• id
• attribute

Parameters

• query: string

The query on the children.

Returns

null | XmlElement<Object> | XmlText | XmlHook

The first element that matches the query or null.

Inherited from

XmlFragment.querySelector

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:125

---

querySelectorAll()

querySelectorAll(query): (null | XmlElement<Object> | XmlText | XmlHook)[]

Returns all YXmlElements that match the query. Similar to Dom's querySelectorAll.

Parameters

• query: string

The query on the children

Returns

(null | XmlElement<Object> | XmlText | XmlHook)[]

The elements that match this query.

Inherited from

XmlFragment.querySelectorAll

Todo

Does not yet support all queries. Currently only query by tagName.

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:137

---

removeAttribute()

removeAttribute(attributeName): void

Removes an attribute from this YXmlElement.

Parameters

• attributeName: string

The attribute name that is to be removed.

Returns

void

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:53

---

setAttribute()

setAttribute<KEY>(attributeName, attributeValue): void

Sets or updates an attribute.

Type parameters

• KEY extends string

Parameters

• attributeName: KEY

The attribute name that is to be set.

• attributeValue: KV[KEY]

The attribute value that is to be set.

Returns

void

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlElement.d.ts:64

---

slice()

slice(start?, end?): (XmlElement<Object> | XmlText)[]

Transforms this YArray to a JavaScript Array.

Parameters

• start?: number

• end?: number

Returns

(XmlElement<Object> | XmlText)[]

Inherited from

XmlFragment.slice

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:221

---

toArray()

toArray(): (XmlElement<Object> | XmlText | XmlHook)[]

Transforms this YArray to a JavaScript Array.

Returns

(XmlElement<Object> | XmlText | XmlHook)[]

Inherited from

XmlFragment.toArray

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:194

---

toDOM()

toDOM(_document?, hooks?, binding?): Node

Creates a Dom Element that mirrors this YXmlElement.

Parameters

• _document?: Document

The document object (you must define this when calling this method in nodejs)

• hooks?

Optional property to customize how hooks are presented in the DOM

• binding?: any

You should not set this property. This is used if DomBinding wants to create a association to the created DOM type.

Returns

Node

The Element

Inherited from

XmlFragment.toDOM

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:157

---

toJSON()

toJSON(): string

Returns

string

Inherited from

XmlFragment.toJSON

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:141

---

unobserve()

unobserve(f): void

Unregister an observer function.

Parameters

• f

Observer function

Returns

void

Inherited from

XmlFragment.unobserve

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:107

---

unobserveDeep()

unobserveDeep(f): void

Unregister an observer function.

Parameters

• f

Observer function

Returns

void

Inherited from

XmlFragment.unobserveDeep

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:113

---

unshift()

unshift(content): void

Preppends content to this YArray.

Parameters

• content: (XmlElement<Object> | XmlText)[]

Array of content to preppend.

Returns

void

Inherited from

XmlFragment.unshift

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YXmlFragment.d.ts:206