yonote/yjs
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Kevin Jahns 2021-01-30 00:12:01 +01:00
commit 2199ac3e4e
11 changed files with 347 additions and 117 deletions
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202
package-lock.json generated
View File

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27
package.json
View File

@ -1,6 +1,6 @@
{ {
"name": "yjs", "name": "yjs",
"version": "13.4.7", "version": "13.4.12",
"description": "Shared Editing Library", "description": "Shared Editing Library",
"main": "./dist/yjs.cjs", "main": "./dist/yjs.cjs",
"module": "./dist/yjs.mjs", "module": "./dist/yjs.mjs",
@ -23,16 +23,14 @@
"debug": "concurrently 'http-server -o test.html' 'npm run watch'", "debug": "concurrently 'http-server -o test.html' 'npm run watch'",
"trace-deopt": "clear && rollup -c && node --trace-deopt dist/test.cjs", "trace-deopt": "clear && rollup -c && node --trace-deopt dist/test.cjs",
"trace-opt": "clear && rollup -c && node --trace-opt dist/test.cjs", "trace-opt": "clear && rollup -c && node --trace-opt dist/test.cjs",
"postinstall": "node ./funding.cjs" "postinstall": "node ./sponsor-y.js"
}, },
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"test": "tests" "test": "tests"
}, },
"standard": { "standard": {
@ -60,22 +58,21 @@
"bugs": { "bugs": {
"url": "https://github.com/yjs/yjs/issues" "url": "https://github.com/yjs/yjs/issues"
}, },
"homepage": "https://yjs.dev", "homepage": "https://docs.yjs.dev",
"dependencies": { "dependencies": {
"lib0": "^0.2.33" "lib0": "^0.2.35"
}, },
"devDependencies": { "devDependencies": {
"@rollup/plugin-commonjs": "^11.1.0", "@rollup/plugin-commonjs": "^17.0.0",
"@rollup/plugin-node-resolve": "^7.1.3", "@rollup/plugin-node-resolve": "^11.0.1",
"concurrently": "^3.6.1", "concurrently": "^3.6.1",
"http-server": "^0.12.3", "http-server": "^0.12.3",
"jsdoc": "^3.6.5", "jsdoc": "^3.6.6",
"markdownlint-cli": "^0.23.2", "markdownlint-cli": "^0.23.2",
"rollup": "^1.32.1", "rollup": "^2.36.1",
"rollup-cli": "^1.0.9",
"standard": "^14.3.4", "standard": "^14.3.4",
"tui-jsdoc-template": "^1.2.2", "tui-jsdoc-template": "^1.2.2",
"typescript": "^3.9.7", "typescript": "^3.9.7",
"y-protocols": "^0.2.3" "y-protocols": "^1.0.2"
} }
} }

0
funding.cjs → sponsor-y.js
View File

3
src/index.js
View File

@ -32,8 +32,6 @@ export {
createRelativePositionFromJSON, createRelativePositionFromJSON,
createAbsolutePositionFromRelativePosition, createAbsolutePositionFromRelativePosition,
compareRelativePositions, compareRelativePositions,
writeRelativePosition,
readRelativePosition,
ID, ID,
createID, createID,
compareIDs, compareIDs,
@ -65,6 +63,7 @@ export {
decodeStateVector, decodeStateVector,
logUpdate, logUpdate,
logUpdateV2, logUpdateV2,
relativePositionToJSON,
isDeleted, isDeleted,
isParentOf, isParentOf,
equalSnapshots, equalSnapshots,

2
src/types/YText.js
View File

@ -169,6 +169,8 @@ const insertNegatedAttributes = (transaction, parent, currPos, negatedAttributes
negatedAttributes.forEach((val, key) => { negatedAttributes.forEach((val, key) => {
left = new Item(createID(ownClientId, getState(doc.store, ownClientId)), left, left && left.lastId, right, right && right.id, parent, null, new ContentFormat(key, val)) left = new Item(createID(ownClientId, getState(doc.store, ownClientId)), left, left && left.lastId, right, right && right.id, parent, null, new ContentFormat(key, val))
left.integrate(transaction, 0) left.integrate(transaction, 0)
currPos.currentAttributes.set(key, val)
updateCurrentAttributes(currPos.currentAttributes, /** @type {ContentFormat} */ (left.content))
}) })
} }

3
src/utils/Doc.js
View File

@ -217,6 +217,9 @@ export class Doc extends Observable {
/** /**
* Converts the entire document into a js object, recursively traversing each yjs type * Converts the entire document into a js object, recursively traversing each yjs type
* Doesn't log types that have not been defined (using ydoc.getType(..)).
*
* @deprecated Do not use this method and rather call toJSON directly on the shared types.
* *
* @return {Object<string, any>} * @return {Object<string, any>}
*/ */

91
src/utils/RelativePosition.js
View File

@ -45,8 +45,9 @@ export class RelativePosition {
* @param {ID|null} type * @param {ID|null} type
* @param {string|null} tname * @param {string|null} tname
* @param {ID|null} item * @param {ID|null} item
* @param {number} assoc
*/ */
constructor (type, tname, item) { constructor (type, tname, item, assoc = 0) {
/** /**
* @type {ID|null} * @type {ID|null}
*/ */
@ -59,23 +60,57 @@ export class RelativePosition {
* @type {ID | null} * @type {ID | null}
*/ */
this.item = item this.item = item
/**
* A relative position is associated to a specific character. By default
* assoc >= 0, the relative position is associated to the character
* after the meant position.
* I.e. position 1 in 'ab' is associated to character 'b'.
*
* If assoc < 0, then the relative position is associated to the caharacter
* before the meant position.
*
* @type {number}
*/
this.assoc = assoc
} }
} }
/**
* @param {RelativePosition} rpos
* @return {any}
*/
export const relativePositionToJSON = rpos => {
const json = {}
if (rpos.type) {
json.type = rpos.type
}
if (rpos.tname) {
json.tname = rpos.tname
}
if (rpos.item) {
json.item = rpos.item
}
if (rpos.assoc != null) {
json.assoc = rpos.assoc
}
return json
}
/** /**
* @param {any} json * @param {any} json
* @return {RelativePosition} * @return {RelativePosition}
* *
* @function * @function
*/ */
export const createRelativePositionFromJSON = json => new RelativePosition(json.type == null ? null : createID(json.type.client, json.type.clock), json.tname || null, json.item == null ? null : createID(json.item.client, json.item.clock)) export const createRelativePositionFromJSON = json => new RelativePosition(json.type == null ? null : createID(json.type.client, json.type.clock), json.tname || null, json.item == null ? null : createID(json.item.client, json.item.clock), json.assoc == null ? 0 : json.assoc)
export class AbsolutePosition { export class AbsolutePosition {
/** /**
* @param {AbstractType<any>} type * @param {AbstractType<any>} type
* @param {number} index * @param {number} index
* @param {number} [assoc]
*/ */
constructor (type, index) { constructor (type, index, assoc = 0) {
/** /**
* @type {AbstractType<any>} * @type {AbstractType<any>}
*/ */
@ -84,24 +119,27 @@ export class AbsolutePosition {
* @type {number} * @type {number}
*/ */
this.index = index this.index = index
this.assoc = assoc
} }
} }
/** /**
* @param {AbstractType<any>} type * @param {AbstractType<any>} type
* @param {number} index * @param {number} index
* @param {number} [assoc]
* *
* @function * @function
*/ */
export const createAbsolutePosition = (type, index) => new AbsolutePosition(type, index) export const createAbsolutePosition = (type, index, assoc = 0) => new AbsolutePosition(type, index, assoc)
/** /**
* @param {AbstractType<any>} type * @param {AbstractType<any>} type
* @param {ID|null} item * @param {ID|null} item
* @param {number} [assoc]
* *
* @function * @function
*/ */
export const createRelativePosition = (type, item) => { export const createRelativePosition = (type, item, assoc) => {
let typeid = null let typeid = null
let tname = null let tname = null
if (type._item === null) { if (type._item === null) {
@ -109,7 +147,7 @@ export const createRelativePosition = (type, item) => {
} else { } else {
typeid = createID(type._item.id.client, type._item.id.clock) typeid = createID(type._item.id.client, type._item.id.clock)
} }
return new RelativePosition(typeid, tname, item) return new RelativePosition(typeid, tname, item, assoc)
} }
/** /**
@ -117,23 +155,35 @@ export const createRelativePosition = (type, item) => {
* *
* @param {AbstractType<any>} type The base type (e.g. YText or YArray). * @param {AbstractType<any>} type The base type (e.g. YText or YArray).
* @param {number} index The absolute position. * @param {number} index The absolute position.
* @param {number} [assoc]
* @return {RelativePosition} * @return {RelativePosition}
* *
* @function * @function
*/ */
export const createRelativePositionFromTypeIndex = (type, index) => { export const createRelativePositionFromTypeIndex = (type, index, assoc = 0) => {
let t = type._start let t = type._start
if (assoc < 0) {
// associated to the left character or the beginning of a type, increment index if possible.
if (index === 0) {
return createRelativePosition(type, null, assoc)
}
index--
}
while (t !== null) { while (t !== null) {
if (!t.deleted && t.countable) { if (!t.deleted && t.countable) {
if (t.length > index) { if (t.length > index) {
// case 1: found position somewhere in the linked list // case 1: found position somewhere in the linked list
return createRelativePosition(type, createID(t.id.client, t.id.clock + index)) return createRelativePosition(type, createID(t.id.client, t.id.clock + index), assoc)
} }
index -= t.length index -= t.length
} }
if (t.right === null && assoc < 0) {
// left-associated position, return last available id
return createRelativePosition(type, t.lastId, assoc)
}
t = t.right t = t.right
} }
return createRelativePosition(type, null) return createRelativePosition(type, null, assoc)
} }
/** /**
@ -143,7 +193,7 @@ export const createRelativePositionFromTypeIndex = (type, index) => {
* @function * @function
*/ */
export const writeRelativePosition = (encoder, rpos) => { export const writeRelativePosition = (encoder, rpos) => {
const { type, tname, item } = rpos const { type, tname, item, assoc } = rpos
if (item !== null) { if (item !== null) {
encoding.writeVarUint(encoder, 0) encoding.writeVarUint(encoder, 0)
writeID(encoder, item) writeID(encoder, item)
@ -158,6 +208,7 @@ export const writeRelativePosition = (encoder, rpos) => {
} else { } else {
throw error.unexpectedCase() throw error.unexpectedCase()
} }
encoding.writeVarInt(encoder, assoc)
return encoder return encoder
} }
@ -173,7 +224,7 @@ export const encodeRelativePosition = rpos => {
/** /**
* @param {decoding.Decoder} decoder * @param {decoding.Decoder} decoder
* @return {RelativePosition|null} * @return {RelativePosition}
* *
* @function * @function
*/ */
@ -195,12 +246,13 @@ export const readRelativePosition = decoder => {
type = readID(decoder) type = readID(decoder)
} }
} }
return new RelativePosition(type, tname, itemID) const assoc = decoding.hasContent(decoder) ? decoding.readVarInt(decoder) : 0
return new RelativePosition(type, tname, itemID, assoc)
} }
/** /**
* @param {Uint8Array} uint8Array * @param {Uint8Array} uint8Array
* @return {RelativePosition|null} * @return {RelativePosition}
*/ */
export const decodeRelativePosition = uint8Array => readRelativePosition(decoding.createDecoder(uint8Array)) export const decodeRelativePosition = uint8Array => readRelativePosition(decoding.createDecoder(uint8Array))
@ -216,6 +268,7 @@ export const createAbsolutePositionFromRelativePosition = (rpos, doc) => {
const rightID = rpos.item const rightID = rpos.item
const typeID = rpos.type const typeID = rpos.type
const tname = rpos.tname const tname = rpos.tname
const assoc = rpos.assoc
let type = null let type = null
let index = 0 let index = 0
if (rightID !== null) { if (rightID !== null) {
@ -229,7 +282,7 @@ export const createAbsolutePositionFromRelativePosition = (rpos, doc) => {
} }
type = /** @type {AbstractType<any>} */ (right.parent) type = /** @type {AbstractType<any>} */ (right.parent)
if (type._item === null || !type._item.deleted) { if (type._item === null || !type._item.deleted) {
index = right.deleted || !right.countable ? 0 : res.diff index = (right.deleted || !right.countable) ? 0 : (res.diff + (assoc >= 0 ? 0 : 1)) // adjust position based on left association if necessary
let n = right.left let n = right.left
while (n !== null) { while (n !== null) {
if (!n.deleted && n.countable) { if (!n.deleted && n.countable) {
@ -256,9 +309,13 @@ export const createAbsolutePositionFromRelativePosition = (rpos, doc) => {
} else { } else {
throw error.unexpectedCase() throw error.unexpectedCase()
} }
index = type._length if (assoc >= 0) {
index = type._length
} else {
index = 0
}
} }
return createAbsolutePosition(type, index) return createAbsolutePosition(type, index, rpos.assoc)
} }
/** /**
@ -269,5 +326,5 @@ export const createAbsolutePositionFromRelativePosition = (rpos, doc) => {
* @function * @function
*/ */
export const compareRelativePositions = (a, b) => a === b || ( export const compareRelativePositions = (a, b) => a === b || (
a !== null && b !== null && a.tname === b.tname && compareIDs(a.item, b.item) && compareIDs(a.type, b.type) a !== null && b !== null && a.tname === b.tname && compareIDs(a.item, b.item) && compareIDs(a.type, b.type) && a.assoc === b.assoc
) )

4
src/utils/Transaction.js
View File

@ -340,14 +340,14 @@ const cleanupTransactions = (transactionCleanups, i) => {
const encoder = new UpdateEncoderV1() const encoder = new UpdateEncoderV1()
const hasContent = writeUpdateMessageFromTransaction(encoder, transaction) const hasContent = writeUpdateMessageFromTransaction(encoder, transaction)
if (hasContent) { if (hasContent) {
doc.emit('update', [encoder.toUint8Array(), transaction.origin, doc]) doc.emit('update', [encoder.toUint8Array(), transaction.origin, doc, transaction])
} }
} }
if (doc._observers.has('updateV2')) { if (doc._observers.has('updateV2')) {
const encoder = new UpdateEncoderV2() const encoder = new UpdateEncoderV2()
const hasContent = writeUpdateMessageFromTransaction(encoder, transaction) const hasContent = writeUpdateMessageFromTransaction(encoder, transaction)
if (hasContent) { if (hasContent) {
doc.emit('updateV2', [encoder.toUint8Array(), transaction.origin, doc]) doc.emit('updateV2', [encoder.toUint8Array(), transaction.origin, doc, transaction])
} }
} }
transaction.subdocsAdded.forEach(subdoc => doc.subdocs.add(subdoc)) transaction.subdocsAdded.forEach(subdoc => doc.subdocs.add(subdoc))

3
tests/index.js
View File

@ -9,6 +9,7 @@ import * as compatibility from './compatibility.tests.js'
import * as doc from './doc.tests.js' import * as doc from './doc.tests.js'
import * as snapshot from './snapshot.tests.js' import * as snapshot from './snapshot.tests.js'
import * as updates from './updates.tests.js' import * as updates from './updates.tests.js'
import * as relativePositions from './relativePositions.tests.js'
import { runTests } from 'lib0/testing.js' import { runTests } from 'lib0/testing.js'
import { isBrowser, isNode } from 'lib0/environment.js' import { isBrowser, isNode } from 'lib0/environment.js'
@ -18,7 +19,7 @@ if (isBrowser) {
log.createVConsole(document.body) log.createVConsole(document.body)
} }
runTests({ runTests({
doc, map, array, text, xml, encoding, undoredo, compatibility, snapshot, updates doc, map, array, text, xml, encoding, undoredo, compatibility, snapshot, updates, relativePositions
}).then(success => { }).then(success => {
/* istanbul ignore next */ /* istanbul ignore next */
if (isNode) { if (isNode) {

104
tests/relativePositions.tests.js Normal file
View File

@ -0,0 +1,104 @@
import * as Y from '../src/internals'
import * as t from 'lib0/testing.js'
/**
* @param {Y.YText} ytext
*/
const checkRelativePositions = ytext => {
// test if all positions are encoded and restored correctly
for (let i = 0; i < ytext.length; i++) {
// for all types of associations..
for (let assoc = -1; assoc < 2; assoc++) {
const rpos = Y.createRelativePositionFromTypeIndex(ytext, i, assoc)
const encodedRpos = Y.encodeRelativePosition(rpos)
const decodedRpos = Y.decodeRelativePosition(encodedRpos)
const absPos = /** @type {Y.AbsolutePosition} */ (Y.createAbsolutePositionFromRelativePosition(decodedRpos, /** @type {Y.Doc} */ (ytext.doc)))
t.assert(absPos.index === i)
t.assert(absPos.assoc === assoc)
}
}
}
/**
* @param {t.TestCase} tc
*/
export const testRelativePositionCase1 = tc => {
const ydoc = new Y.Doc()
const ytext = ydoc.getText()
ytext.insert(0, '1')
ytext.insert(0, 'abc')
ytext.insert(0, 'z')
ytext.insert(0, 'y')
ytext.insert(0, 'x')
checkRelativePositions(ytext)
}
/**
* @param {t.TestCase} tc
*/
export const testRelativePositionCase2 = tc => {
const ydoc = new Y.Doc()
const ytext = ydoc.getText()
ytext.insert(0, 'abc')
checkRelativePositions(ytext)
}
/**
* @param {t.TestCase} tc
*/
export const testRelativePositionCase3 = tc => {
const ydoc = new Y.Doc()
const ytext = ydoc.getText()
ytext.insert(0, 'abc')
ytext.insert(0, '1')
ytext.insert(0, 'xyz')
checkRelativePositions(ytext)
}
/**
* @param {t.TestCase} tc
*/
export const testRelativePositionCase4 = tc => {
const ydoc = new Y.Doc()
const ytext = ydoc.getText()
ytext.insert(0, '1')
checkRelativePositions(ytext)
}
/**
* @param {t.TestCase} tc
*/
export const testRelativePositionCase5 = tc => {
const ydoc = new Y.Doc()
const ytext = ydoc.getText()
ytext.insert(0, '2')
ytext.insert(0, '1')
checkRelativePositions(ytext)
}
/**
* @param {t.TestCase} tc
*/
export const testRelativePositionCase6 = tc => {
const ydoc = new Y.Doc()
const ytext = ydoc.getText()
checkRelativePositions(ytext)
}
/**
* @param {t.TestCase} tc
*/
export const testRelativePositionAssociationDifference = tc => {
const ydoc = new Y.Doc()
const ytext = ydoc.getText()
ytext.insert(0, '2')
ytext.insert(0, '1')
const rposRight = Y.createRelativePositionFromTypeIndex(ytext, 1, 0)
const rposLeft = Y.createRelativePositionFromTypeIndex(ytext, 1, -1)
ytext.insert(1, 'x')
const posRight = Y.createAbsolutePositionFromRelativePosition(rposRight, ydoc)
const posLeft = Y.createAbsolutePositionFromRelativePosition(rposLeft, ydoc)
t.assert(posRight != null && posRight.index === 2)
t.assert(posLeft != null && posLeft.index === 1)
}

25
tests/y-text.tests.js
View File

@ -78,6 +78,29 @@ export const testBasicFormat = tc => {
compare(users) compare(users)
} }
/**
* @param {t.TestCase} tc
*/
export const testMultilineFormat = tc => {
const ydoc = new Y.Doc()
const testText = ydoc.getText('test')
testText.insert(0, 'Test\nMulti-line\nFormatting')
testText.applyDelta([
{ retain: 4, attributes: { bold: true } },
{ retain: 1 }, // newline character
{ retain: 10, attributes: { bold: true } },
{ retain: 1 }, // newline character
{ retain: 10, attributes: { bold: true } }
])
t.compare(testText.toDelta(), [
{ insert: 'Test', attributes: { bold: true } },
{ insert: '\n' },
{ insert: 'Multi-line', attributes: { bold: true } },
{ insert: '\n' },
{ insert: 'Formatting', attributes: { bold: true } }
])
}
/** /**
* @param {t.TestCase} tc * @param {t.TestCase} tc
*/ */
@ -286,7 +309,9 @@ export const testBestCase = tc => {
} }
const tryGc = () => { const tryGc = () => {
// @ts-ignore
if (typeof global !== 'undefined' && global.gc) { if (typeof global !== 'undefined' && global.gc) {
// @ts-ignore
global.gc() global.gc()
} }
} }