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unify Y.Array & Y.Text deltas so event.changes.delta is equal to event.delta

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This commit is contained in:
Kevin Jahns
2021-03-21 21:31:28 +01:00
parent 8a8a60efde
commit 77958da657
2 changed files with 99 additions and 62 deletions
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119
src/utils/YEvent.js
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@@ -35,6 +35,14 @@ export class YEvent {
* @type {Object|null}
*/
this._changes = null
/**
* @type {null | Map<string, { action: 'add' | 'update' | 'delete', oldValue: any, newValue: any }>}
*/
this._keys = null
/**
* @type {null | Array<{ insert?: string | Array<any>, retain?: number, delete?: number, attributes?: Object<string, any> }>}
*/
this._delta = null
}
/**
@@ -67,6 +75,66 @@ export class YEvent {
return isDeleted(this.transaction.deleteSet, struct.id)
}
/**
* @type {Map<string, { action: 'add' | 'update' | 'delete', oldValue: any, newValue: any }>}
*/
get keys () {
if (this._keys === null) {
const keys = new Map()
const target = this.target
const changed = /** @type Set<string|null> */ (this.transaction.changed.get(target))
changed.forEach(key => {
if (key !== null) {
const item = /** @type {Item} */ (target._map.get(key))
/**
* @type {'delete' | 'add' | 'update'}
*/
let action
let oldValue
if (this.adds(item)) {
let prev = item.left
while (prev !== null && this.adds(prev)) {
prev = prev.left
}
if (this.deletes(item)) {
if (prev !== null && this.deletes(prev)) {
action = 'delete'
oldValue = array.last(prev.content.getContent())
} else {
return
}
} else {
if (prev !== null && this.deletes(prev)) {
action = 'update'
oldValue = array.last(prev.content.getContent())
} else {
action = 'add'
oldValue = undefined
}
}
} else {
if (this.deletes(item)) {
action = 'delete'
oldValue = array.last(/** @type {Item} */ item.content.getContent())
} else {
return // nop
}
}
keys.set(key, { action, oldValue })
}
})
this._keys = keys
}
return this._keys
}
/**
* @type {Array<{insert?: string | Array<any>, retain?: number, delete?: number, attributes?: Object<string, any>}>}
*/
get delta () {
return this.changes.delta
}
/**
* Check if a struct is added by this event.
*
@@ -80,7 +148,7 @@ export class YEvent {
}
/**
* @return {{added:Set<Item>,deleted:Set<Item>,keys:Map<string,{action:'add'|'update'|'delete',oldValue:any}>,delta:Array<{insert:Array<any>}|{delete:number}|{retain:number}>}}
* @type {{added:Set<Item>,deleted:Set<Item>,keys:Map<string,{action:'add'|'update'|'delete',oldValue:any}>,delta:Array<{insert?:Array<any>|string, delete?:number, retain?:number}>}}
*/
get changes () {
let changes = this._changes
@@ -92,12 +160,11 @@ export class YEvent {
* @type {Array<{insert:Array<any>}|{delete:number}|{retain:number}>}
*/
const delta = []
/**
* @type {Map<string,{ action: 'add' | 'update' | 'delete', oldValue: any}>}
*/
const keys = new Map()
changes = {
added, deleted, delta, keys
added,
deleted,
delta,
keys: this.keys
}
const changed = /** @type Set<string|null> */ (this.transaction.changed.get(target))
if (changed.has(null)) {
@@ -141,46 +208,6 @@ export class YEvent {
packOp()
}
}
changed.forEach(key => {
if (key !== null) {
const item = /** @type {Item} */ (target._map.get(key))
/**
* @type {'delete' | 'add' | 'update'}
*/
let action
let oldValue
if (this.adds(item)) {
let prev = item.left
while (prev !== null && this.adds(prev)) {
prev = prev.left
}
if (this.deletes(item)) {
if (prev !== null && this.deletes(prev)) {
action = 'delete'
oldValue = array.last(prev.content.getContent())
} else {
return
}
} else {
if (prev !== null && this.deletes(prev)) {
action = 'update'
oldValue = array.last(prev.content.getContent())
} else {
action = 'add'
oldValue = undefined
}
}
} else {
if (this.deletes(item)) {
action = 'delete'
oldValue = array.last(/** @type {Item} */ item.content.getContent())
} else {
return // nop
}
}
keys.set(key, { action, oldValue })
}
})
this._changes = changes
}
return /** @type {any} */ (changes)