fix: resolve TypeScript errors in frontend build

This commit is contained in:
Hiro
2026-03-30 23:16:07 +00:00
parent b733306773
commit 24925e1acb
2941 changed files with 418042 additions and 49 deletions
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This module implements the state object of a ProseMirror editor, along
with the representation of the selection and the plugin abstraction.
### Editor State
ProseMirror keeps all editor state (the things, basically, that would
be required to create an editor just like the current one) in a single
[object](#state.EditorState). That object is updated (creating a new
state) by applying [transactions](#state.Transaction) to it.
@EditorState
@EditorStateConfig
@Transaction
@Command
### Selection
A ProseMirror selection can be one of several types. This module
defines types for classical [text selections](#state.TextSelection)
(of which cursors are a special case) and [_node_
selections](#state.NodeSelection), where a specific document node is
selected. It is possible to extend the editor with custom selection
types.
@Selection
@TextSelection
@NodeSelection
@AllSelection
@SelectionRange
@SelectionBookmark
### Plugin System
To make it easy to package and enable extra editor functionality,
ProseMirror has a plugin system.
@PluginSpec
@StateField
@PluginView
@Plugin
@PluginKey
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export {Selection, SelectionRange, TextSelection, NodeSelection, AllSelection, SelectionBookmark} from "./selection"
export {Transaction, Command} from "./transaction"
export {EditorState, EditorStateConfig} from "./state"
export {Plugin, PluginKey, PluginSpec, StateField, PluginView} from "./plugin"
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import {type EditorView, type EditorProps} from "prosemirror-view"
import {EditorState, EditorStateConfig} from "./state"
import {Transaction} from "./transaction"
/// This is the type passed to the [`Plugin`](#state.Plugin)
/// constructor. It provides a definition for a plugin.
export interface PluginSpec<PluginState> {
/// The [view props](#view.EditorProps) added by this plugin. Props
/// that are functions will be bound to have the plugin instance as
/// their `this` binding.
props?: EditorProps<Plugin<PluginState>>
/// Allows a plugin to define a [state field](#state.StateField), an
/// extra slot in the state object in which it can keep its own data.
state?: StateField<PluginState>
/// Can be used to make this a keyed plugin. You can have only one
/// plugin with a given key in a given state, but it is possible to
/// access the plugin's configuration and state through the key,
/// without having access to the plugin instance object.
key?: PluginKey
/// When the plugin needs to interact with the editor view, or
/// set something up in the DOM, use this field. The function
/// will be called when the plugin's state is associated with an
/// editor view.
view?: (view: EditorView) => PluginView
/// When present, this will be called before a transaction is
/// applied by the state, allowing the plugin to cancel it (by
/// returning false).
filterTransaction?: (tr: Transaction, state: EditorState) => boolean
/// Allows the plugin to append another transaction to be applied
/// after the given array of transactions. When another plugin
/// appends a transaction after this was called, it is called again
/// with the new state and new transactions—but only the new
/// transactions, i.e. it won't be passed transactions that it
/// already saw.
appendTransaction?: (transactions: readonly Transaction[], oldState: EditorState, newState: EditorState) => Transaction | null | undefined
/// Additional properties are allowed on plugin specs, which can be
/// read via [`Plugin.spec`](#state.Plugin.spec).
[key: string]: any
}
/// A stateful object that can be installed in an editor by a
/// [plugin](#state.PluginSpec.view).
export type PluginView = {
/// Called whenever the view's state is updated.
update?: (view: EditorView, prevState: EditorState) => void
/// Called when the view is destroyed or receives a state
/// with different plugins.
destroy?: () => void
}
function bindProps(obj: {[prop: string]: any}, self: any, target: {[prop: string]: any}) {
for (let prop in obj) {
let val = obj[prop]
if (val instanceof Function) val = val.bind(self)
else if (prop == "handleDOMEvents") val = bindProps(val, self, {})
target[prop] = val
}
return target
}
/// Plugins bundle functionality that can be added to an editor.
/// They are part of the [editor state](#state.EditorState) and
/// may influence that state and the view that contains it.
export class Plugin<PluginState = any> {
/// Create a plugin.
constructor(
/// The plugin's [spec object](#state.PluginSpec).
readonly spec: PluginSpec<PluginState>
) {
if (spec.props) bindProps(spec.props, this, this.props)
this.key = spec.key ? spec.key.key : createKey("plugin")
}
/// The [props](#view.EditorProps) exported by this plugin.
readonly props: EditorProps<Plugin<PluginState>> = {}
/// @internal
key: string
/// Extract the plugin's state field from an editor state.
getState(state: EditorState): PluginState | undefined { return (state as any)[this.key] }
}
/// A plugin spec may provide a state field (under its
/// [`state`](#state.PluginSpec.state) property) of this type, which
/// describes the state it wants to keep. Functions provided here are
/// always called with the plugin instance as their `this` binding.
export interface StateField<T> {
/// Initialize the value of the field. `config` will be the object
/// passed to [`EditorState.create`](#state.EditorState^create). Note
/// that `instance` is a half-initialized state instance, and will
/// not have values for plugin fields initialized after this one.
init: (config: EditorStateConfig, instance: EditorState) => T
/// Apply the given transaction to this state field, producing a new
/// field value. Note that the `newState` argument is again a partially
/// constructed state does not yet contain the state from plugins
/// coming after this one.
apply: (tr: Transaction, value: T, oldState: EditorState, newState: EditorState) => T
/// Convert this field to JSON. Optional, can be left off to disable
/// JSON serialization for the field.
toJSON?: (value: T) => any
/// Deserialize the JSON representation of this field. Note that the
/// `state` argument is again a half-initialized state.
fromJSON?: (config: EditorStateConfig, value: any, state: EditorState) => T
}
const keys = Object.create(null)
function createKey(name: string) {
if (name in keys) return name + "$" + ++keys[name]
keys[name] = 0
return name + "$"
}
/// A key is used to [tag](#state.PluginSpec.key) plugins in a way
/// that makes it possible to find them, given an editor state.
/// Assigning a key does mean only one plugin of that type can be
/// active in a state.
export class PluginKey<PluginState = any> {
/// @internal
key: string
/// Create a plugin key.
constructor(name = "key") { this.key = createKey(name) }
/// Get the active plugin with this key, if any, from an editor
/// state.
get(state: EditorState): Plugin<PluginState> | undefined { return state.config.pluginsByKey[this.key] }
/// Get the plugin's state from an editor state.
getState(state: EditorState): PluginState | undefined { return (state as any)[this.key] }
}
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import {Slice, Fragment, ResolvedPos, Node} from "prosemirror-model"
import {ReplaceStep, ReplaceAroundStep, Mappable} from "prosemirror-transform"
import {Transaction} from "./transaction"
const classesById = Object.create(null)
/// Superclass for editor selections. Every selection type should
/// extend this. Should not be instantiated directly.
export abstract class Selection {
/// Initialize a selection with the head and anchor and ranges. If no
/// ranges are given, constructs a single range across `$anchor` and
/// `$head`.
constructor(
/// The resolved anchor of the selection (the side that stays in
/// place when the selection is modified).
readonly $anchor: ResolvedPos,
/// The resolved head of the selection (the side that moves when
/// the selection is modified).
readonly $head: ResolvedPos,
ranges?: readonly SelectionRange[]
) {
this.ranges = ranges || [new SelectionRange($anchor.min($head), $anchor.max($head))]
}
/// The ranges covered by the selection.
ranges: readonly SelectionRange[]
/// The selection's anchor, as an unresolved position.
get anchor() { return this.$anchor.pos }
/// The selection's head.
get head() { return this.$head.pos }
/// The lower bound of the selection's main range.
get from() { return this.$from.pos }
/// The upper bound of the selection's main range.
get to() { return this.$to.pos }
/// The resolved lower bound of the selection's main range.
get $from() {
return this.ranges[0].$from
}
/// The resolved upper bound of the selection's main range.
get $to() {
return this.ranges[0].$to
}
/// Indicates whether the selection contains any content.
get empty(): boolean {
let ranges = this.ranges
for (let i = 0; i < ranges.length; i++)
if (ranges[i].$from.pos != ranges[i].$to.pos) return false
return true
}
/// Test whether the selection is the same as another selection.
abstract eq(selection: Selection): boolean
/// Map this selection through a [mappable](#transform.Mappable)
/// thing. `doc` should be the new document to which we are mapping.
abstract map(doc: Node, mapping: Mappable): Selection
/// Get the content of this selection as a slice.
content() {
return this.$from.doc.slice(this.from, this.to, true)
}
/// Replace the selection with a slice or, if no slice is given,
/// delete the selection. Will append to the given transaction.
replace(tr: Transaction, content = Slice.empty) {
// Put the new selection at the position after the inserted
// content. When that ended in an inline node, search backwards,
// to get the position after that node. If not, search forward.
let lastNode = content.content.lastChild, lastParent = null
for (let i = 0; i < content.openEnd; i++) {
lastParent = lastNode!
lastNode = lastNode!.lastChild
}
let mapFrom = tr.steps.length, ranges = this.ranges
for (let i = 0; i < ranges.length; i++) {
let {$from, $to} = ranges[i], mapping = tr.mapping.slice(mapFrom)
tr.replaceRange(mapping.map($from.pos), mapping.map($to.pos), i ? Slice.empty : content)
if (i == 0)
selectionToInsertionEnd(tr, mapFrom, (lastNode ? lastNode.isInline : lastParent && lastParent.isTextblock) ? -1 : 1)
}
}
/// Replace the selection with the given node, appending the changes
/// to the given transaction.
replaceWith(tr: Transaction, node: Node) {
let mapFrom = tr.steps.length, ranges = this.ranges
for (let i = 0; i < ranges.length; i++) {
let {$from, $to} = ranges[i], mapping = tr.mapping.slice(mapFrom)
let from = mapping.map($from.pos), to = mapping.map($to.pos)
if (i) {
tr.deleteRange(from, to)
} else {
tr.replaceRangeWith(from, to, node)
selectionToInsertionEnd(tr, mapFrom, node.isInline ? -1 : 1)
}
}
}
/// Convert the selection to a JSON representation. When implementing
/// this for a custom selection class, make sure to give the object a
/// `type` property whose value matches the ID under which you
/// [registered](#state.Selection^jsonID) your class.
abstract toJSON(): any
/// Find a valid cursor or leaf node selection starting at the given
/// position and searching back if `dir` is negative, and forward if
/// positive. When `textOnly` is true, only consider cursor
/// selections. Will return null when no valid selection position is
/// found.
static findFrom($pos: ResolvedPos, dir: number, textOnly: boolean = false): Selection | null {
let inner = $pos.parent.inlineContent ? new TextSelection($pos)
: findSelectionIn($pos.node(0), $pos.parent, $pos.pos, $pos.index(), dir, textOnly)
if (inner) return inner
for (let depth = $pos.depth - 1; depth >= 0; depth--) {
let found = dir < 0
? findSelectionIn($pos.node(0), $pos.node(depth), $pos.before(depth + 1), $pos.index(depth), dir, textOnly)
: findSelectionIn($pos.node(0), $pos.node(depth), $pos.after(depth + 1), $pos.index(depth) + 1, dir, textOnly)
if (found) return found
}
return null
}
/// Find a valid cursor or leaf node selection near the given
/// position. Searches forward first by default, but if `bias` is
/// negative, it will search backwards first.
static near($pos: ResolvedPos, bias = 1): Selection {
return this.findFrom($pos, bias) || this.findFrom($pos, -bias) || new AllSelection($pos.node(0))
}
/// Find the cursor or leaf node selection closest to the start of
/// the given document. Will return an
/// [`AllSelection`](#state.AllSelection) if no valid position
/// exists.
static atStart(doc: Node): Selection {
return findSelectionIn(doc, doc, 0, 0, 1) || new AllSelection(doc)
}
/// Find the cursor or leaf node selection closest to the end of the
/// given document.
static atEnd(doc: Node): Selection {
return findSelectionIn(doc, doc, doc.content.size, doc.childCount, -1) || new AllSelection(doc)
}
/// Deserialize the JSON representation of a selection. Must be
/// implemented for custom classes (as a static class method).
static fromJSON(doc: Node, json: any): Selection {
if (!json || !json.type) throw new RangeError("Invalid input for Selection.fromJSON")
let cls = classesById[json.type]
if (!cls) throw new RangeError(`No selection type ${json.type} defined`)
return cls.fromJSON(doc, json)
}
/// To be able to deserialize selections from JSON, custom selection
/// classes must register themselves with an ID string, so that they
/// can be disambiguated. Try to pick something that's unlikely to
/// clash with classes from other modules.
static jsonID(id: string, selectionClass: {fromJSON: (doc: Node, json: any) => Selection}) {
if (id in classesById) throw new RangeError("Duplicate use of selection JSON ID " + id)
classesById[id] = selectionClass
;(selectionClass as any).prototype.jsonID = id
return selectionClass
}
/// Get a [bookmark](#state.SelectionBookmark) for this selection,
/// which is a value that can be mapped without having access to a
/// current document, and later resolved to a real selection for a
/// given document again. (This is used mostly by the history to
/// track and restore old selections.) The default implementation of
/// this method just converts the selection to a text selection and
/// returns the bookmark for that.
getBookmark(): SelectionBookmark {
return TextSelection.between(this.$anchor, this.$head).getBookmark()
}
/// Controls whether, when a selection of this type is active in the
/// browser, the selected range should be visible to the user.
/// Defaults to `true`.
declare visible: boolean
}
Selection.prototype.visible = true
/// A lightweight, document-independent representation of a selection.
/// You can define a custom bookmark type for a custom selection class
/// to make the history handle it well.
export interface SelectionBookmark {
/// Map the bookmark through a set of changes.
map: (mapping: Mappable) => SelectionBookmark
/// Resolve the bookmark to a real selection again. This may need to
/// do some error checking and may fall back to a default (usually
/// [`TextSelection.between`](#state.TextSelection^between)) if
/// mapping made the bookmark invalid.
resolve: (doc: Node) => Selection
}
/// Represents a selected range in a document.
export class SelectionRange {
/// Create a range.
constructor(
/// The lower bound of the range.
readonly $from: ResolvedPos,
/// The upper bound of the range.
readonly $to: ResolvedPos
) {}
}
let warnedAboutTextSelection = false
function checkTextSelection($pos: ResolvedPos) {
if (!warnedAboutTextSelection && !$pos.parent.inlineContent) {
warnedAboutTextSelection = true
console["warn"]("TextSelection endpoint not pointing into a node with inline content (" + $pos.parent.type.name + ")")
}
}
/// A text selection represents a classical editor selection, with a
/// head (the moving side) and anchor (immobile side), both of which
/// point into textblock nodes. It can be empty (a regular cursor
/// position).
export class TextSelection extends Selection {
/// Construct a text selection between the given points.
constructor($anchor: ResolvedPos, $head = $anchor) {
checkTextSelection($anchor)
checkTextSelection($head)
super($anchor, $head)
}
/// Returns a resolved position if this is a cursor selection (an
/// empty text selection), and null otherwise.
get $cursor() { return this.$anchor.pos == this.$head.pos ? this.$head : null }
map(doc: Node, mapping: Mappable): Selection {
let $head = doc.resolve(mapping.map(this.head))
if (!$head.parent.inlineContent) return Selection.near($head)
let $anchor = doc.resolve(mapping.map(this.anchor))
return new TextSelection($anchor.parent.inlineContent ? $anchor : $head, $head)
}
replace(tr: Transaction, content = Slice.empty) {
super.replace(tr, content)
if (content == Slice.empty) {
let marks = this.$from.marksAcross(this.$to)
if (marks) tr.ensureMarks(marks)
}
}
eq(other: Selection): boolean {
return other instanceof TextSelection && other.anchor == this.anchor && other.head == this.head
}
getBookmark() {
return new TextBookmark(this.anchor, this.head)
}
toJSON(): any {
return {type: "text", anchor: this.anchor, head: this.head}
}
/// @internal
static fromJSON(doc: Node, json: any) {
if (typeof json.anchor != "number" || typeof json.head != "number")
throw new RangeError("Invalid input for TextSelection.fromJSON")
return new TextSelection(doc.resolve(json.anchor), doc.resolve(json.head))
}
/// Create a text selection from non-resolved positions.
static create(doc: Node, anchor: number, head = anchor) {
let $anchor = doc.resolve(anchor)
return new this($anchor, head == anchor ? $anchor : doc.resolve(head))
}
/// Return a text selection that spans the given positions or, if
/// they aren't text positions, find a text selection near them.
/// `bias` determines whether the method searches forward (default)
/// or backwards (negative number) first. Will fall back to calling
/// [`Selection.near`](#state.Selection^near) when the document
/// doesn't contain a valid text position.
static between($anchor: ResolvedPos, $head: ResolvedPos, bias?: number): Selection {
let dPos = $anchor.pos - $head.pos
if (!bias || dPos) bias = dPos >= 0 ? 1 : -1
if (!$head.parent.inlineContent) {
let found = Selection.findFrom($head, bias, true) || Selection.findFrom($head, -bias, true)
if (found) $head = found.$head
else return Selection.near($head, bias)
}
if (!$anchor.parent.inlineContent) {
if (dPos == 0) {
$anchor = $head
} else {
$anchor = (Selection.findFrom($anchor, -bias, true) || Selection.findFrom($anchor, bias, true))!.$anchor
if (($anchor.pos < $head.pos) != (dPos < 0)) $anchor = $head
}
}
return new TextSelection($anchor, $head)
}
}
Selection.jsonID("text", TextSelection)
class TextBookmark {
constructor(readonly anchor: number, readonly head: number) {}
map(mapping: Mappable) {
return new TextBookmark(mapping.map(this.anchor), mapping.map(this.head))
}
resolve(doc: Node) {
return TextSelection.between(doc.resolve(this.anchor), doc.resolve(this.head))
}
}
/// A node selection is a selection that points at a single node. All
/// nodes marked [selectable](#model.NodeSpec.selectable) can be the
/// target of a node selection. In such a selection, `from` and `to`
/// point directly before and after the selected node, `anchor` equals
/// `from`, and `head` equals `to`..
export class NodeSelection extends Selection {
/// Create a node selection. Does not verify the validity of its
/// argument.
constructor($pos: ResolvedPos) {
let node = $pos.nodeAfter!
let $end = $pos.node(0).resolve($pos.pos + node.nodeSize)
super($pos, $end)
this.node = node
}
/// The selected node.
node: Node
map(doc: Node, mapping: Mappable): Selection {
let {deleted, pos} = mapping.mapResult(this.anchor)
let $pos = doc.resolve(pos)
if (deleted) return Selection.near($pos)
return new NodeSelection($pos)
}
content() {
return new Slice(Fragment.from(this.node), 0, 0)
}
eq(other: Selection): boolean {
return other instanceof NodeSelection && other.anchor == this.anchor
}
toJSON(): any {
return {type: "node", anchor: this.anchor}
}
getBookmark() { return new NodeBookmark(this.anchor) }
/// @internal
static fromJSON(doc: Node, json: any) {
if (typeof json.anchor != "number")
throw new RangeError("Invalid input for NodeSelection.fromJSON")
return new NodeSelection(doc.resolve(json.anchor))
}
/// Create a node selection from non-resolved positions.
static create(doc: Node, from: number) {
return new NodeSelection(doc.resolve(from))
}
/// Determines whether the given node may be selected as a node
/// selection.
static isSelectable(node: Node) {
return !node.isText && node.type.spec.selectable !== false
}
}
NodeSelection.prototype.visible = false
Selection.jsonID("node", NodeSelection)
class NodeBookmark {
constructor(readonly anchor: number) {}
map(mapping: Mappable) {
let {deleted, pos} = mapping.mapResult(this.anchor)
return deleted ? new TextBookmark(pos, pos) : new NodeBookmark(pos)
}
resolve(doc: Node) {
let $pos = doc.resolve(this.anchor), node = $pos.nodeAfter
if (node && NodeSelection.isSelectable(node)) return new NodeSelection($pos)
return Selection.near($pos)
}
}
/// A selection type that represents selecting the whole document
/// (which can not necessarily be expressed with a text selection, when
/// there are for example leaf block nodes at the start or end of the
/// document).
export class AllSelection extends Selection {
/// Create an all-selection over the given document.
constructor(doc: Node) {
super(doc.resolve(0), doc.resolve(doc.content.size))
}
replace(tr: Transaction, content = Slice.empty) {
if (content == Slice.empty) {
tr.delete(0, tr.doc.content.size)
let sel = Selection.atStart(tr.doc)
if (!sel.eq(tr.selection)) tr.setSelection(sel)
} else {
super.replace(tr, content)
}
}
toJSON(): any { return {type: "all"} }
/// @internal
static fromJSON(doc: Node) { return new AllSelection(doc) }
map(doc: Node) { return new AllSelection(doc) }
eq(other: Selection) { return other instanceof AllSelection }
getBookmark() { return AllBookmark }
}
Selection.jsonID("all", AllSelection)
const AllBookmark = {
map() { return this },
resolve(doc: Node) { return new AllSelection(doc) }
}
// FIXME we'll need some awareness of text direction when scanning for selections
// Try to find a selection inside the given node. `pos` points at the
// position where the search starts. When `text` is true, only return
// text selections.
function findSelectionIn(doc: Node, node: Node, pos: number, index: number, dir: number, text = false): Selection | null {
if (node.inlineContent) return TextSelection.create(doc, pos)
for (let i = index - (dir > 0 ? 0 : 1); dir > 0 ? i < node.childCount : i >= 0; i += dir) {
let child = node.child(i)
if (!child.isAtom) {
let inner = findSelectionIn(doc, child, pos + dir, dir < 0 ? child.childCount : 0, dir, text)
if (inner) return inner
} else if (!text && NodeSelection.isSelectable(child)) {
return NodeSelection.create(doc, pos - (dir < 0 ? child.nodeSize : 0))
}
pos += child.nodeSize * dir
}
return null
}
function selectionToInsertionEnd(tr: Transaction, startLen: number, bias: number) {
let last = tr.steps.length - 1
if (last < startLen) return
let step = tr.steps[last]
if (!(step instanceof ReplaceStep || step instanceof ReplaceAroundStep)) return
let map = tr.mapping.maps[last], end: number | undefined
map.forEach((_from, _to, _newFrom, newTo) => { if (end == null) end = newTo })
tr.setSelection(Selection.near(tr.doc.resolve(end!), bias))
}
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import {Node, Mark, Schema} from "prosemirror-model"
import {Selection, TextSelection} from "./selection"
import {Transaction} from "./transaction"
import {Plugin, StateField} from "./plugin"
function bind<T extends Function>(f: T, self: any): T {
return !self || !f ? f : f.bind(self)
}
class FieldDesc<T> {
init: (config: EditorStateConfig, instance: EditorState) => T
apply: (tr: Transaction, value: T, oldState: EditorState, newState: EditorState) => T
constructor(readonly name: string, desc: StateField<any>, self?: any) {
this.init = bind(desc.init, self)
this.apply = bind(desc.apply, self)
}
}
const baseFields = [
new FieldDesc<Node>("doc", {
init(config) { return config.doc || config.schema!.topNodeType.createAndFill() },
apply(tr) { return tr.doc }
}),
new FieldDesc<Selection>("selection", {
init(config, instance) { return config.selection || Selection.atStart(instance.doc) },
apply(tr) { return tr.selection }
}),
new FieldDesc<readonly Mark[] | null>("storedMarks", {
init(config) { return config.storedMarks || null },
apply(tr, _marks, _old, state) { return (state.selection as TextSelection).$cursor ? tr.storedMarks : null }
}),
new FieldDesc<number>("scrollToSelection", {
init() { return 0 },
apply(tr, prev) { return tr.scrolledIntoView ? prev + 1 : prev }
})
]
// Object wrapping the part of a state object that stays the same
// across transactions. Stored in the state's `config` property.
class Configuration {
fields: FieldDesc<any>[]
plugins: Plugin[] = []
pluginsByKey: {[key: string]: Plugin} = Object.create(null)
constructor(readonly schema: Schema, plugins?: readonly Plugin[]) {
this.fields = baseFields.slice()
if (plugins) plugins.forEach(plugin => {
if (this.pluginsByKey[plugin.key])
throw new RangeError("Adding different instances of a keyed plugin (" + plugin.key + ")")
this.plugins.push(plugin)
this.pluginsByKey[plugin.key] = plugin
if (plugin.spec.state)
this.fields.push(new FieldDesc<any>(plugin.key, plugin.spec.state, plugin))
})
}
}
/// The type of object passed to
/// [`EditorState.create`](#state.EditorState^create).
export interface EditorStateConfig {
/// The schema to use (only relevant if no `doc` is specified).
schema?: Schema
/// The starting document. Either this or `schema` _must_ be
/// provided.
doc?: Node
/// A valid selection in the document.
selection?: Selection
/// The initial set of [stored marks](#state.EditorState.storedMarks).
storedMarks?: readonly Mark[] | null
/// The plugins that should be active in this state.
plugins?: readonly Plugin[]
}
/// The state of a ProseMirror editor is represented by an object of
/// this type. A state is a persistent data structure—it isn't
/// updated, but rather a new state value is computed from an old one
/// using the [`apply`](#state.EditorState.apply) method.
///
/// A state holds a number of built-in fields, and plugins can
/// [define](#state.PluginSpec.state) additional fields.
export class EditorState {
/// @internal
constructor(
/// @internal
readonly config: Configuration
) {}
/// The current document.
declare doc: Node
/// The selection.
declare selection: Selection
/// A set of marks to apply to the next input. Will be null when
/// no explicit marks have been set.
declare storedMarks: readonly Mark[] | null
/// The schema of the state's document.
get schema(): Schema {
return this.config.schema
}
/// The plugins that are active in this state.
get plugins(): readonly Plugin[] {
return this.config.plugins
}
/// Apply the given transaction to produce a new state.
apply(tr: Transaction): EditorState {
return this.applyTransaction(tr).state
}
/// @internal
filterTransaction(tr: Transaction, ignore = -1) {
for (let i = 0; i < this.config.plugins.length; i++) if (i != ignore) {
let plugin = this.config.plugins[i]
if (plugin.spec.filterTransaction && !plugin.spec.filterTransaction.call(plugin, tr, this))
return false
}
return true
}
/// Verbose variant of [`apply`](#state.EditorState.apply) that
/// returns the precise transactions that were applied (which might
/// be influenced by the [transaction
/// hooks](#state.PluginSpec.filterTransaction) of
/// plugins) along with the new state.
applyTransaction(rootTr: Transaction): {state: EditorState, transactions: readonly Transaction[]} {
if (!this.filterTransaction(rootTr)) return {state: this, transactions: []}
let trs = [rootTr], newState = this.applyInner(rootTr), seen = null
// This loop repeatedly gives plugins a chance to respond to
// transactions as new transactions are added, making sure to only
// pass the transactions the plugin did not see before.
for (;;) {
let haveNew = false
for (let i = 0; i < this.config.plugins.length; i++) {
let plugin = this.config.plugins[i]
if (plugin.spec.appendTransaction) {
let n = seen ? seen[i].n : 0, oldState = seen ? seen[i].state : this
let tr = n < trs.length &&
plugin.spec.appendTransaction.call(plugin, n ? trs.slice(n) : trs, oldState, newState)
if (tr && newState.filterTransaction(tr, i)) {
tr.setMeta("appendedTransaction", rootTr)
if (!seen) {
seen = []
for (let j = 0; j < this.config.plugins.length; j++)
seen.push(j < i ? {state: newState, n: trs.length} : {state: this, n: 0})
}
trs.push(tr)
newState = newState.applyInner(tr)
haveNew = true
}
if (seen) seen[i] = {state: newState, n: trs.length}
}
}
if (!haveNew) return {state: newState, transactions: trs}
}
}
/// @internal
applyInner(tr: Transaction) {
if (!tr.before.eq(this.doc)) throw new RangeError("Applying a mismatched transaction")
let newInstance = new EditorState(this.config), fields = this.config.fields
for (let i = 0; i < fields.length; i++) {
let field = fields[i]
;(newInstance as any)[field.name] = field.apply(tr, (this as any)[field.name], this, newInstance)
}
return newInstance
}
/// Accessor that constructs and returns a new [transaction](#state.Transaction) from this state.
get tr(): Transaction { return new Transaction(this) }
/// Create a new state.
static create(config: EditorStateConfig) {
let $config = new Configuration(config.doc ? config.doc.type.schema : config.schema!, config.plugins)
let instance = new EditorState($config)
for (let i = 0; i < $config.fields.length; i++)
(instance as any)[$config.fields[i].name] = $config.fields[i].init(config, instance)
return instance
}
/// Create a new state based on this one, but with an adjusted set
/// of active plugins. State fields that exist in both sets of
/// plugins are kept unchanged. Those that no longer exist are
/// dropped, and those that are new are initialized using their
/// [`init`](#state.StateField.init) method, passing in the new
/// configuration object..
reconfigure(config: {
/// New set of active plugins.
plugins?: readonly Plugin[]
}) {
let $config = new Configuration(this.schema, config.plugins)
let fields = $config.fields, instance = new EditorState($config)
for (let i = 0; i < fields.length; i++) {
let name = fields[i].name
;(instance as any)[name] = this.hasOwnProperty(name) ? (this as any)[name] : fields[i].init(config, instance)
}
return instance
}
/// Serialize this state to JSON. If you want to serialize the state
/// of plugins, pass an object mapping property names to use in the
/// resulting JSON object to plugin objects. The argument may also be
/// a string or number, in which case it is ignored, to support the
/// way `JSON.stringify` calls `toString` methods.
toJSON(pluginFields?: {[propName: string]: Plugin}): any {
let result: any = {doc: this.doc.toJSON(), selection: this.selection.toJSON()}
if (this.storedMarks) result.storedMarks = this.storedMarks.map(m => m.toJSON())
if (pluginFields && typeof pluginFields == 'object') for (let prop in pluginFields) {
if (prop == "doc" || prop == "selection")
throw new RangeError("The JSON fields `doc` and `selection` are reserved")
let plugin = pluginFields[prop], state = plugin.spec.state
if (state && state.toJSON) result[prop] = state.toJSON.call(plugin, (this as any)[plugin.key])
}
return result
}
/// Deserialize a JSON representation of a state. `config` should
/// have at least a `schema` field, and should contain array of
/// plugins to initialize the state with. `pluginFields` can be used
/// to deserialize the state of plugins, by associating plugin
/// instances with the property names they use in the JSON object.
static fromJSON(config: {
/// The schema to use.
schema: Schema
/// The set of active plugins.
plugins?: readonly Plugin[]
}, json: any, pluginFields?: {[propName: string]: Plugin}) {
if (!json) throw new RangeError("Invalid input for EditorState.fromJSON")
if (!config.schema) throw new RangeError("Required config field 'schema' missing")
let $config = new Configuration(config.schema, config.plugins)
let instance = new EditorState($config)
$config.fields.forEach(field => {
if (field.name == "doc") {
instance.doc = Node.fromJSON(config.schema, json.doc)
} else if (field.name == "selection") {
instance.selection = Selection.fromJSON(instance.doc, json.selection)
} else if (field.name == "storedMarks") {
if (json.storedMarks) instance.storedMarks = json.storedMarks.map(config.schema.markFromJSON)
} else {
if (pluginFields) for (let prop in pluginFields) {
let plugin = pluginFields[prop], state = plugin.spec.state
if (plugin.key == field.name && state && state.fromJSON &&
Object.prototype.hasOwnProperty.call(json, prop)) {
// This field belongs to a plugin mapped to a JSON field, read it from there.
;(instance as any)[field.name] = state.fromJSON.call(plugin, config, json[prop], instance)
return
}
}
;(instance as any)[field.name] = field.init(config, instance)
}
})
return instance
}
}
+215
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@@ -0,0 +1,215 @@
import {Transform, Step} from "prosemirror-transform"
import {Mark, MarkType, Node, Slice} from "prosemirror-model"
import {type EditorView} from "prosemirror-view"
import {Selection} from "./selection"
import {Plugin, PluginKey} from "./plugin"
import {EditorState} from "./state"
/// Commands are functions that take a state and a an optional
/// transaction dispatch function and...
///
/// - determine whether they apply to this state
/// - if not, return false
/// - if `dispatch` was passed, perform their effect, possibly by
/// passing a transaction to `dispatch`
/// - return true
///
/// In some cases, the editor view is passed as a third argument.
export type Command = (state: EditorState, dispatch?: (tr: Transaction) => void, view?: EditorView) => boolean
const UPDATED_SEL = 1, UPDATED_MARKS = 2, UPDATED_SCROLL = 4
/// An editor state transaction, which can be applied to a state to
/// create an updated state. Use
/// [`EditorState.tr`](#state.EditorState.tr) to create an instance.
///
/// Transactions track changes to the document (they are a subclass of
/// [`Transform`](#transform.Transform)), but also other state changes,
/// like selection updates and adjustments of the set of [stored
/// marks](#state.EditorState.storedMarks). In addition, you can store
/// metadata properties in a transaction, which are extra pieces of
/// information that client code or plugins can use to describe what a
/// transaction represents, so that they can update their [own
/// state](#state.StateField) accordingly.
///
/// The [editor view](#view.EditorView) uses a few metadata
/// properties: it will attach a property `"pointer"` with the value
/// `true` to selection transactions directly caused by mouse or touch
/// input, a `"composition"` property holding an ID identifying the
/// composition that caused it to transactions caused by composed DOM
/// input, and a `"uiEvent"` property of that may be `"paste"`,
/// `"cut"`, or `"drop"`.
export class Transaction extends Transform {
/// The timestamp associated with this transaction, in the same
/// format as `Date.now()`.
time: number
private curSelection: Selection
// The step count for which the current selection is valid.
private curSelectionFor = 0
// Bitfield to track which aspects of the state were updated by
// this transaction.
private updated = 0
// Object used to store metadata properties for the transaction.
private meta: {[name: string]: any} = Object.create(null)
/// The stored marks set by this transaction, if any.
storedMarks: readonly Mark[] | null
/// @internal
constructor(state: EditorState) {
super(state.doc)
this.time = Date.now()
this.curSelection = state.selection
this.storedMarks = state.storedMarks
}
/// The transaction's current selection. This defaults to the editor
/// selection [mapped](#state.Selection.map) through the steps in the
/// transaction, but can be overwritten with
/// [`setSelection`](#state.Transaction.setSelection).
get selection(): Selection {
if (this.curSelectionFor < this.steps.length) {
this.curSelection = this.curSelection.map(this.doc, this.mapping.slice(this.curSelectionFor))
this.curSelectionFor = this.steps.length
}
return this.curSelection
}
/// Update the transaction's current selection. Will determine the
/// selection that the editor gets when the transaction is applied.
setSelection(selection: Selection): this {
if (selection.$from.doc != this.doc)
throw new RangeError("Selection passed to setSelection must point at the current document")
this.curSelection = selection
this.curSelectionFor = this.steps.length
this.updated = (this.updated | UPDATED_SEL) & ~UPDATED_MARKS
this.storedMarks = null
return this
}
/// Whether the selection was explicitly updated by this transaction.
get selectionSet() {
return (this.updated & UPDATED_SEL) > 0
}
/// Set the current stored marks.
setStoredMarks(marks: readonly Mark[] | null): this {
this.storedMarks = marks
this.updated |= UPDATED_MARKS
return this
}
/// Make sure the current stored marks or, if that is null, the marks
/// at the selection, match the given set of marks. Does nothing if
/// this is already the case.
ensureMarks(marks: readonly Mark[]): this {
if (!Mark.sameSet(this.storedMarks || this.selection.$from.marks(), marks))
this.setStoredMarks(marks)
return this
}
/// Add a mark to the set of stored marks.
addStoredMark(mark: Mark): this {
return this.ensureMarks(mark.addToSet(this.storedMarks || this.selection.$head.marks()))
}
/// Remove a mark or mark type from the set of stored marks.
removeStoredMark(mark: Mark | MarkType): this {
return this.ensureMarks(mark.removeFromSet(this.storedMarks || this.selection.$head.marks()))
}
/// Whether the stored marks were explicitly set for this transaction.
get storedMarksSet() {
return (this.updated & UPDATED_MARKS) > 0
}
/// @internal
addStep(step: Step, doc: Node) {
super.addStep(step, doc)
this.updated = this.updated & ~UPDATED_MARKS
this.storedMarks = null
}
/// Update the timestamp for the transaction.
setTime(time: number): this {
this.time = time
return this
}
/// Replace the current selection with the given slice.
replaceSelection(slice: Slice): this {
this.selection.replace(this, slice)
return this
}
/// Replace the selection with the given node. When `inheritMarks` is
/// true and the content is inline, it inherits the marks from the
/// place where it is inserted.
replaceSelectionWith(node: Node, inheritMarks = true): this {
let selection = this.selection
if (inheritMarks)
node = node.mark(this.storedMarks || (selection.empty ? selection.$from.marks() : (selection.$from.marksAcross(selection.$to) || Mark.none)))
selection.replaceWith(this, node)
return this
}
/// Delete the selection.
deleteSelection(): this {
this.selection.replace(this)
return this
}
/// Replace the given range, or the selection if no range is given,
/// with a text node containing the given string.
insertText(text: string, from?: number, to?: number): this {
let schema = this.doc.type.schema
if (from == null) {
if (!text) return this.deleteSelection()
return this.replaceSelectionWith(schema.text(text), true)
} else {
if (to == null) to = from
if (!text) return this.deleteRange(from, to)
let marks = this.storedMarks
if (!marks) {
let $from = this.doc.resolve(from)
marks = to == from ? $from.marks() : $from.marksAcross(this.doc.resolve(to))
}
this.replaceRangeWith(from, to, schema.text(text, marks))
if (!this.selection.empty && this.selection.to == from + text.length)
this.setSelection(Selection.near(this.selection.$to))
return this
}
}
/// Store a metadata property in this transaction, keyed either by
/// name or by plugin.
setMeta(key: string | Plugin | PluginKey, value: any): this {
this.meta[typeof key == "string" ? key : key.key] = value
return this
}
/// Retrieve a metadata property for a given name or plugin.
getMeta(key: string | Plugin | PluginKey) {
return this.meta[typeof key == "string" ? key : key.key]
}
/// Returns true if this transaction doesn't contain any metadata,
/// and can thus safely be extended.
get isGeneric() {
for (let _ in this.meta) return false
return true
}
/// Indicate that the editor should scroll the selection into view
/// when updated to the state produced by this transaction.
scrollIntoView(): this {
this.updated |= UPDATED_SCROLL
return this
}
/// True when this transaction has had `scrollIntoView` called on it.
get scrolledIntoView() {
return (this.updated & UPDATED_SCROLL) > 0
}
}