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Linux gallant-poincare.82-165-91-112.plesk.page 6.1.0-37-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.140-1 (2025-05-22) x86_64
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import {Fragment, Slice, Node, Mark, Schema} from "prosemirror-model"
import {Step, StepResult} from "./step"
import {Mappable} from "./map"
function mapFragment(fragment: Fragment, f: (child: Node, parent: Node, i: number) => Node, parent: Node): Fragment {
let mapped = []
for (let i = 0; i < fragment.childCount; i++) {
let child = fragment.child(i)
if (child.content.size) child = child.copy(mapFragment(child.content, f, child))
if (child.isInline) child = f(child, parent, i)
mapped.push(child)
}
return Fragment.fromArray(mapped)
}
/// Add a mark to all inline content between two positions.
export class AddMarkStep extends Step {
/// Create a mark step.
constructor(
/// The start of the marked range.
readonly from: number,
/// The end of the marked range.
readonly to: number,
/// The mark to add.
readonly mark: Mark
) {
super()
}
apply(doc: Node) {
let oldSlice = doc.slice(this.from, this.to), $from = doc.resolve(this.from)
let parent = $from.node($from.sharedDepth(this.to))
let slice = new Slice(mapFragment(oldSlice.content, (node, parent) => {
if (!node.isAtom || !parent.type.allowsMarkType(this.mark.type)) return node
return node.mark(this.mark.addToSet(node.marks))
}, parent), oldSlice.openStart, oldSlice.openEnd)
return StepResult.fromReplace(doc, this.from, this.to, slice)
}
invert(): Step {
return new RemoveMarkStep(this.from, this.to, this.mark)
}
map(mapping: Mappable): Step | null {
let from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1)
if (from.deleted && to.deleted || from.pos >= to.pos) return null
return new AddMarkStep(from.pos, to.pos, this.mark)
}
merge(other: Step): Step | null {
if (other instanceof AddMarkStep &&
other.mark.eq(this.mark) &&
this.from <= other.to && this.to >= other.from)
return new AddMarkStep(Math.min(this.from, other.from),
Math.max(this.to, other.to), this.mark)
return null
}
toJSON(): any {
return {stepType: "addMark", mark: this.mark.toJSON(),
from: this.from, to: this.to}
}
/// @internal
static fromJSON(schema: Schema, json: any) {
if (typeof json.from != "number" || typeof json.to != "number")
throw new RangeError("Invalid input for AddMarkStep.fromJSON")
return new AddMarkStep(json.from, json.to, schema.markFromJSON(json.mark))
}
}
Step.jsonID("addMark", AddMarkStep)
/// Remove a mark from all inline content between two positions.
export class RemoveMarkStep extends Step {
/// Create a mark-removing step.
constructor(
/// The start of the unmarked range.
readonly from: number,
/// The end of the unmarked range.
readonly to: number,
/// The mark to remove.
readonly mark: Mark
) {
super()
}
apply(doc: Node) {
let oldSlice = doc.slice(this.from, this.to)
let slice = new Slice(mapFragment(oldSlice.content, node => {
return node.mark(this.mark.removeFromSet(node.marks))
}, doc), oldSlice.openStart, oldSlice.openEnd)
return StepResult.fromReplace(doc, this.from, this.to, slice)
}
invert(): Step {
return new AddMarkStep(this.from, this.to, this.mark)
}
map(mapping: Mappable): Step | null {
let from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1)
if (from.deleted && to.deleted || from.pos >= to.pos) return null
return new RemoveMarkStep(from.pos, to.pos, this.mark)
}
merge(other: Step): Step | null {
if (other instanceof RemoveMarkStep &&
other.mark.eq(this.mark) &&
this.from <= other.to && this.to >= other.from)
return new RemoveMarkStep(Math.min(this.from, other.from),
Math.max(this.to, other.to), this.mark)
return null
}
toJSON(): any {
return {stepType: "removeMark", mark: this.mark.toJSON(),
from: this.from, to: this.to}
}
/// @internal
static fromJSON(schema: Schema, json: any) {
if (typeof json.from != "number" || typeof json.to != "number")
throw new RangeError("Invalid input for RemoveMarkStep.fromJSON")
return new RemoveMarkStep(json.from, json.to, schema.markFromJSON(json.mark))
}
}
Step.jsonID("removeMark", RemoveMarkStep)
/// Add a mark to a specific node.
export class AddNodeMarkStep extends Step {
/// Create a node mark step.
constructor(
/// The position of the target node.
readonly pos: number,
/// The mark to add.
readonly mark: Mark
) {
super()
}
apply(doc: Node) {
let node = doc.nodeAt(this.pos)
if (!node) return StepResult.fail("No node at mark step's position")
let updated = node.type.create(node.attrs, null, this.mark.addToSet(node.marks))
return StepResult.fromReplace(doc, this.pos, this.pos + 1, new Slice(Fragment.from(updated), 0, node.isLeaf ? 0 : 1))
}
invert(doc: Node): Step {
let node = doc.nodeAt(this.pos)
if (node) {
let newSet = this.mark.addToSet(node.marks)
if (newSet.length == node.marks.length) {
for (let i = 0; i < node.marks.length; i++)
if (!node.marks[i].isInSet(newSet))
return new AddNodeMarkStep(this.pos, node.marks[i])
return new AddNodeMarkStep(this.pos, this.mark)
}
}
return new RemoveNodeMarkStep(this.pos, this.mark)
}
map(mapping: Mappable): Step | null {
let pos = mapping.mapResult(this.pos, 1)
return pos.deletedAfter ? null : new AddNodeMarkStep(pos.pos, this.mark)
}
toJSON(): any {
return {stepType: "addNodeMark", pos: this.pos, mark: this.mark.toJSON()}
}
/// @internal
static fromJSON(schema: Schema, json: any) {
if (typeof json.pos != "number")
throw new RangeError("Invalid input for AddNodeMarkStep.fromJSON")
return new AddNodeMarkStep(json.pos, schema.markFromJSON(json.mark))
}
}
Step.jsonID("addNodeMark", AddNodeMarkStep)
/// Remove a mark from a specific node.
export class RemoveNodeMarkStep extends Step {
/// Create a mark-removing step.
constructor(
/// The position of the target node.
readonly pos: number,
/// The mark to remove.
readonly mark: Mark
) {
super()
}
apply(doc: Node) {
let node = doc.nodeAt(this.pos)
if (!node) return StepResult.fail("No node at mark step's position")
let updated = node.type.create(node.attrs, null, this.mark.removeFromSet(node.marks))
return StepResult.fromReplace(doc, this.pos, this.pos + 1, new Slice(Fragment.from(updated), 0, node.isLeaf ? 0 : 1))
}
invert(doc: Node): Step {
let node = doc.nodeAt(this.pos)
if (!node || !this.mark.isInSet(node.marks)) return this
return new AddNodeMarkStep(this.pos, this.mark)
}
map(mapping: Mappable): Step | null {
let pos = mapping.mapResult(this.pos, 1)
return pos.deletedAfter ? null : new RemoveNodeMarkStep(pos.pos, this.mark)
}
toJSON(): any {
return {stepType: "removeNodeMark", pos: this.pos, mark: this.mark.toJSON()}
}
/// @internal
static fromJSON(schema: Schema, json: any) {
if (typeof json.pos != "number")
throw new RangeError("Invalid input for RemoveNodeMarkStep.fromJSON")
return new RemoveNodeMarkStep(json.pos, schema.markFromJSON(json.mark))
}
}
Step.jsonID("removeNodeMark", RemoveNodeMarkStep)