LEAN-2702 TCP-100 FE

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@manuscripts/body-editor",
   "description": "Prosemirror components for editing and viewing manuscripts",
-  "version": "1.5.16",
+  "version": "1.5.16-LEAN-2702",
   "repository": "github:Atypon-OpenSource/manuscripts-body-editor",
   "license": "Apache-2.0",
   "main": "dist/cjs",
@@ -44,6 +44,7 @@
     "lodash-es": "^4.17.21",
     "popper.js": "^1.16.1",
     "pretty-bytes": "^6.0.0",
+    "prosemirror-collab": "^1.3.1",
     "prosemirror-commands": "^1.5.0",
     "prosemirror-dropcursor": "^1.6.1",
     "prosemirror-history": "^1.3.0",
@@ -70,8 +71,8 @@
     "@babel/preset-env": "^7.20.2",
     "@babel/preset-react": "^7.18.6",
     "@babel/preset-typescript": "^7.18.6",
-    "@manuscripts/eslint-config": "^0.5.1",
     "@inline-svg-unique-id/react": "^1.2.3",
+    "@manuscripts/eslint-config": "^0.5.1",
     "@types/codemirror": "^5.60.5",
     "@types/dompurify": "^2.4.0",
     "@types/enzyme": "^3.10.12",

src/classes/collabProvider.ts

@@ -0,0 +1,41 @@
+/*!
+ * © 2019 Atypon Systems LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { Step } from 'prosemirror-transform'
+
+export abstract class CollabProvider {
+  currentVersion: number
+  protected newStepsListener: (
+    version: number,
+    steps: Step[],
+    clientIDs: number[]
+  ) => void
+  abstract sendSteps(
+    version: number,
+    steps: readonly Step[],
+    clientID: string | number,
+    flush?: boolean
+  ): Promise<void>
+  abstract onNewSteps(listener: CollabProvider['newStepsListener']): void
+  abstract stepsSince(version: number): Promise<
+    | {
+        steps: Step[]
+        clientIDs: number[]
+        version: number
+      }
+    | undefined
+  >
+}

src/configs/ManuscriptsEditor.ts

@@ -36,6 +36,7 @@ import { EditorView } from 'prosemirror-view'
 import React from 'react'
 import { DefaultTheme } from 'styled-components'
 
+import { CollabProvider } from '../classes/collabProvider'
 import { transformPasted } from '../lib/paste'
 import { PopperManager } from '../lib/popper'
 import { CreateView } from '../useEditor'
@@ -91,6 +92,7 @@ export interface EditorProps {
   environment?: string
   setCiteprocCitations: (citations: Map<string, string>) => void
   getCiteprocCitations: () => Map<string, string>
+  collabProvider?: CollabProvider
 }
 
 export default {

src/configs/editor-plugins.ts

@@ -27,11 +27,13 @@ import {
 import { CitationProvider } from '@manuscripts/library'
 import { Capabilities } from '@manuscripts/style-guide'
 import { Build, ManuscriptSchema } from '@manuscripts/transform'
+import { collab } from 'prosemirror-collab'
 import { dropCursor } from 'prosemirror-dropcursor'
 import { history } from 'prosemirror-history'
 import { Plugin } from 'prosemirror-state'
 import { tableEditing } from 'prosemirror-tables'
 
+import { CollabProvider } from '../classes/collabProvider'
 import keys from '../keys'
 import { PopperManager } from '../lib/popper'
 import auxiliary_object_order from '../plugins/auxiliary_object_order'
@@ -67,11 +69,12 @@ interface PluginProps {
   cslProps: CSLProps
   popper: PopperManager
   setCiteprocCitations: (citations: Map<string, string>) => void
+  collabProvider?: CollabProvider
 }
 
 export default (props: PluginProps) => {
   const plugins = props.plugins || []
-  return [
+  const allPlugins = [
     rules,
     ...keys,
     dropCursor(),
@@ -95,6 +98,12 @@ export default (props: PluginProps) => {
     track_changes_ui(props),
     tracking_mark(),
   ]
+
+  if (props.collabProvider) {
+    allPlugins.push(collab({ version: props.collabProvider.currentVersion }))
+  }
+
+  return allPlugins
 }
 
 // for tables

src/index.ts

@@ -27,6 +27,7 @@ export {
 } from './components/toolbar/ManuscriptToolbar'
 export { default as getMenus } from './menus'
 export { ChangeReceiver } from './types'
+export { CollabProvider } from './classes/collabProvider'
 export { PopperManager } from './lib/popper'
 export { toolbar } from './toolbar'
 export * from './plugins/highlight'

src/lib/use-do-with-debounce.ts

@@ -0,0 +1,39 @@
+/*!
+ * © 2019 Atypon Systems LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { useRef } from 'react'
+
+export const useDoWithDebounce = () => {
+  const debounced = useRef<() => void>(() => undefined)
+  const timeout = useRef<number>()
+
+  const doWithDebounce = (fn: () => void, interval = 1000, flush = false) => {
+    debounced.current = fn
+
+    if (flush) {
+      fn()
+      debounced.current = () => undefined
+      window.clearTimeout(timeout.current)
+    }
+
+    window.clearTimeout(timeout.current)
+    timeout.current = window.setTimeout(() => {
+      debounced.current()
+      timeout.current = 0
+    }, interval)
+  }
+
+  return doWithDebounce
+}

src/useEditor.ts

@@ -14,6 +14,15 @@
  * limitations under the License.
  */
 
+import {
+  trackChangesPluginKey,
+  TrackChangesStatus,
+} from '@manuscripts/track-changes-plugin'
+import {
+  getVersion,
+  receiveTransaction,
+  sendableSteps,
+} from 'prosemirror-collab'
 import {
   Command,
   EditorState,
@@ -25,6 +34,8 @@ import { EditorView } from 'prosemirror-view'
 import { useCallback, useEffect, useRef, useState } from 'react'
 import { useHistory } from 'react-router-dom'
 
+import { EditorProps } from './configs/ManuscriptsEditor'
+import { useDoWithDebounce } from './lib/use-do-with-debounce'
 import { bibliographyKey } from './plugins/bibliography'
 
 export type CreateView = (
@@ -33,11 +44,56 @@ export type CreateView = (
   dispatch: (tr: Transaction) => EditorState
 ) => EditorView
 
-const useEditor = (initialState: EditorState, createView: CreateView) => {
+const useEditor = (
+  initialState: EditorState,
+  createView: CreateView,
+  editorProps: EditorProps
+) => {
   const view = useRef<EditorView>()
   const [state, setState] = useState<EditorState>(initialState)
   const [viewElement, setViewElement] = useState<HTMLDivElement | null>(null)
   const history = useHistory()
+  const { collabProvider } = editorProps
+
+  // Receiving steps from backend
+  if (collabProvider) {
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    collabProvider.onNewSteps(async (newVersion, steps, clientIDs) => {
+      if (state && view.current) {
+        // @TODO: make sure received steps are ignored by the quarterback plugin
+        const localVersion = getVersion(view.current.state)
+
+        // @TODO - save unconfirmed verison and compare it with newVersion to check if we can consume this update and don't have to call collabProvider.stepsSince
+        // if (newVersion == lastLocalUnconfirmed) {
+        //   view.current.dispatch(
+        //     receiveTransaction(
+        //       // has to be called for the collab to increment version and drop buffered steps
+        //       view.current.state,
+        //       steps,
+        //       clientIDs
+        //     )
+        //   )
+        // }
+
+        const since = await collabProvider.stepsSince(localVersion)
+
+        if (since?.steps && since.clientIDs) {
+          view.current.dispatch(
+            receiveTransaction(
+              // has to be called for the collab to increment version and drop buffered steps
+              view.current.state,
+              since?.steps,
+              since.clientIDs
+            )
+          )
+        } else {
+          console.warn('Inconsistent new steps event from the authority.')
+        }
+      }
+    })
+  }
+
+  const debounce = useDoWithDebounce()
 
   const dispatch = useCallback(
     (tr: Transaction) => {
@@ -48,8 +104,33 @@ const useEditor = (initialState: EditorState, createView: CreateView) => {
       const nextState = view.current.state.apply(tr)
       view.current.updateState(nextState)
 
-      // TODO: this part should be debounced??
-      setState(nextState)
+      const trackState = trackChangesPluginKey.getState(view.current.state)
+
+      if (
+        collabProvider &&
+        trackState &&
+        trackState.status !== TrackChangesStatus.viewSnapshots
+      ) {
+        const sendable = sendableSteps(nextState)
+        if (sendable) {
+          collabProvider.sendSteps(
+            sendable.version,
+            sendable.steps,
+            sendable.clientID,
+            !tr.isGeneric
+          )
+        }
+      }
+
+      debounce(
+        () => {
+          setState(nextState)
+        },
+        200,
+        !tr.isGeneric
+      )
+
+      // need to communicate updates of the body-editor the article-editor
 
       return state
     },

yarn.lock

@@ -7042,6 +7042,13 @@ prosemirror-collab@^1.3.0:
   dependencies:
     prosemirror-state "^1.0.0"
 
+prosemirror-collab@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/prosemirror-collab/-/prosemirror-collab-1.3.1.tgz#0e8c91e76e009b53457eb3b3051fb68dad029a33"
+  integrity sha512-4SnynYR9TTYaQVXd/ieUvsVV4PDMBzrq2xPUWutHivDuOshZXqQ5rGbZM84HEaXKbLdItse7weMGOUdDVcLKEQ==
+  dependencies:
+    prosemirror-state "^1.0.0"
+
 prosemirror-commands@^1.0.0:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/prosemirror-commands/-/prosemirror-commands-1.5.1.tgz#89ddfa14e144dcc7fb0938aa0e2568c7fdde306f"