Add Root-Only Filter Feature in History Tab (#872)

This commit adds a Root-Only Filter in the History tab, allowing users
to focus exclusively on changes to the Root of the Document.
Previously, the History tab logs both content changes and Presence events
(such as cursor movements), which can result in a high volume of events
that may not always be relevant for debugging content changes.

tools/devtools/src/devtools/contexts/YorkieSource.tsx

@@ -14,21 +14,30 @@
  * limitations under the License.
  */
 
-import type { ReactNode } from 'react';
+import type { Dispatch, ReactNode, SetStateAction } from 'react';
 import {
   createContext,
   useCallback,
   useContext,
   useEffect,
+  useMemo,
   useState,
 } from 'react';
 
-import type { SDKToPanelMessage, TransactionEvent } from 'yorkie-js-sdk';
+import {
+  DocEventType,
+  type SDKToPanelMessage,
+  type TransactionEvent,
+} from 'yorkie-js-sdk';
 import { connectPort, sendToSDK } from '../../port';
 
 const DocKeyContext = createContext<string>(null);
 const YorkieDocContext = createContext(null);
-const TransactionEventsContext = createContext<Array<TransactionEvent>>(null);
+const TransactionEventsContext = createContext<{
+  events: Array<TransactionEvent>;
+  hidePresenceEvents: boolean;
+  setHidePresenceEvents: Dispatch<SetStateAction<boolean>>;
+}>(null);
 
 type Props = {
   children?: ReactNode;
@@ -41,6 +50,10 @@ export function YorkieSourceProvider({ children }: Props) {
     Array<TransactionEvent>
   >([]);
 
+  // filter out presence events
+  const [hideTransactionPresenceEvents, setHideTransactionPresenceEvents] =
+    useState(false);
+
   const resetDocument = () => {
     setCurrentDocKey('');
     setTransactionEvents([]);
@@ -94,7 +107,13 @@ export function YorkieSourceProvider({ children }: Props) {
 
   return (
     <DocKeyContext.Provider value={currentDocKey}>
-      <TransactionEventsContext.Provider value={transactionEvents}>
+      <TransactionEventsContext.Provider
+        value={{
+          events: transactionEvents,
+          hidePresenceEvents: hideTransactionPresenceEvents,
+          setHidePresenceEvents: setHideTransactionPresenceEvents,
+        }}
+      >
         <YorkieDocContext.Provider value={[doc, setDoc]}>
           {children}
         </YorkieDocContext.Provider>
@@ -121,12 +140,64 @@ export function useYorkieDoc() {
   return value;
 }
 
+export enum TransactionEventType {
+  Document = 'document',
+  Presence = 'presence',
+}
+
+export const getTransactionEventType = (
+  event: TransactionEvent,
+): TransactionEventType => {
+  for (const docEvent of event) {
+    if (
+      docEvent.type === DocEventType.StatusChanged ||
+      docEvent.type === DocEventType.Snapshot ||
+      docEvent.type === DocEventType.LocalChange ||
+      docEvent.type === DocEventType.RemoteChange
+    ) {
+      return TransactionEventType.Document;
+    }
+  }
+
+  return TransactionEventType.Presence;
+};
+
 export function useTransactionEvents() {
-  const value = useContext(TransactionEventsContext);
-  if (value === undefined) {
+  const { events, hidePresenceEvents, setHidePresenceEvents } = useContext(
+    TransactionEventsContext,
+  );
+
+  if (events === undefined) {
     throw new Error(
       'useTransactionEvents should be used within YorkieSourceProvider',
     );
   }
-  return value;
+
+  // create an enhanced events with metadata
+  const enhancedEvents = useMemo(() => {
+    return events.map((event) => {
+      const transactionEventType = getTransactionEventType(event);
+
+      return {
+        event,
+        transactionEventType,
+        isFiltered:
+          hidePresenceEvents &&
+          transactionEventType === TransactionEventType.Presence,
+      };
+    });
+  }, [hidePresenceEvents, events]);
+
+  // filter out presence events from the original events
+  const presenceFilteredEvents = useMemo(() => {
+    if (!hidePresenceEvents) return enhancedEvents;
+    return enhancedEvents.filter((e) => !e.isFiltered);
+  }, [enhancedEvents]);
+
+  return {
+    originalEvents: enhancedEvents,
+    presenceFilteredEvents,
+    hidePresenceEvents,
+    setHidePresenceEvents,
+  };
 }

tools/devtools/src/devtools/panel/index.tsx

@@ -18,7 +18,6 @@ import { createRoot } from 'react-dom/client';
 import { useEffect, useState } from 'react';
 import yorkie from 'yorkie-js-sdk';
 import { useResizable } from 'react-resizable-layout';
-
 import { SelectedNodeProvider } from '../contexts/SelectedNode';
 import { SelectedPresenceProvider } from '../contexts/SelectedPresence';
 import {
@@ -34,7 +33,8 @@ import { Separator } from '../components/ResizableSeparator';
 
 const Panel = () => {
   const currentDocKey = useCurrentDocKey();
-  const events = useTransactionEvents();
+  const { originalEvents, presenceFilteredEvents, hidePresenceEvents } =
+    useTransactionEvents();
   const [, setDoc] = useYorkieDoc();
   const [selectedEventIndexInfo, setSelectedEventIndexInfo] = useState({
     index: null,
@@ -57,6 +57,8 @@ const Panel = () => {
     axis: 'x',
     initial: 300,
   });
+  const [hidePresenceTab, setHidePresenceTab] = useState(false);
+  const events = hidePresenceEvents ? presenceFilteredEvents : originalEvents;
 
   useEffect(() => {
     if (events.length === 0) {
@@ -78,13 +80,23 @@ const Panel = () => {
 
   useEffect(() => {
     if (selectedEventIndexInfo.index === null) return;
+
     const doc = new yorkie.Document(currentDocKey);
-    for (let i = 0; i <= selectedEventIndexInfo.index; i++) {
-      doc.applyTransactionEvent(events[i]);
+
+    let eventIndex = 0;
+    let filteredEventIndex = 0;
+
+    while (filteredEventIndex <= selectedEventIndexInfo.index) {
+      if (!originalEvents[eventIndex].isFiltered) {
+        filteredEventIndex++;
+      }
+
+      doc.applyTransactionEvent(originalEvents[eventIndex].event);
+      eventIndex++;
     }
 
     setDoc(doc);
-    setSelectedEvent(events[selectedEventIndexInfo.index]);
+    setSelectedEvent(events[selectedEventIndexInfo.index].event);
   }, [selectedEventIndexInfo]);
 
   if (!currentDocKey) {
@@ -117,22 +129,40 @@ const Panel = () => {
         selectedEventIndexInfo={selectedEventIndexInfo}
         setSelectedEventIndexInfo={setSelectedEventIndexInfo}
       />
+
       <Separator
         dir={'horizontal'}
         isDragging={isHistoryDragging}
         {...historySeparatorProps}
       />
+
       <div className="devtools-data">
         <SelectedNodeProvider>
-          <Document style={{ width: documentW }} />
+          <Document
+            style={{
+              width: hidePresenceTab ? '100%' : documentW,
+              maxWidth: hidePresenceTab ? '100%' : '90%',
+              borderRight: hidePresenceTab
+                ? 'none'
+                : '1px solid var(--gray-300)',
+            }}
+            hidePresenceTab={hidePresenceTab}
+            setHidePresenceTab={setHidePresenceTab}
+          />
         </SelectedNodeProvider>
-        <Separator
-          isDragging={isDocumentDragging}
-          {...documentSeparatorProps}
-        />
-        <SelectedPresenceProvider>
-          <Presence />
-        </SelectedPresenceProvider>
+
+        {!hidePresenceTab && (
+          <>
+            <Separator
+              isDragging={isDocumentDragging}
+              {...documentSeparatorProps}
+            />
+
+            <SelectedPresenceProvider>
+              <Presence />
+            </SelectedPresenceProvider>
+          </>
+        )}
       </div>
     </div>
   );

tools/devtools/src/devtools/panel/slider.css

@@ -91,3 +91,7 @@
 .rc-slider-mark-text-active .mark-remote {
   color: var(--blue-0);
 }
+
+.history-slider-wrap[data-length='1'] .rc-slider-rail {
+  display: none;
+}

tools/devtools/src/devtools/panel/styles.css

@@ -83,13 +83,13 @@
   width: 100%;
 }
 
-.devtools-history-toolbar {
+.devtools-tab-toolbar {
   display: flex;
   justify-content: space-between;
   align-items: center;
 }
 
-.toggle-history-btn {
+.toggle-tab-btn {
   margin-left: 4px;
   padding: 2px 6px;
   border: 1px solid var(--gray-300);
@@ -100,7 +100,7 @@
   font-size: 10px;
 }
 
-.toggle-history-btn:hover {
+.toggle-tab-btn:hover {
   background: var(--gray-200);
 }
 
@@ -152,9 +152,6 @@
 
 .yorkie-root {
   min-width: 10%;
-  max-width: 90%;
-  width: 60%;
-  border-right: 1px solid var(--gray-300);
 }
 
 .yorkie-presence {

tools/devtools/src/devtools/tabs/Document.tsx

@@ -23,7 +23,7 @@ import { useSelectedNode } from '../contexts/SelectedNode';
 import { useCurrentDocKey, useYorkieDoc } from '../contexts/YorkieSource';
 import { CloseIcon } from '../icons';
 
-export function Document({ style }) {
+export function Document({ style, hidePresenceTab, setHidePresenceTab }) {
   const currentDocKey = useCurrentDocKey();
   const [doc] = useYorkieDoc();
   const [selectedNode, setSelectedNode] = useSelectedNode();
@@ -60,7 +60,18 @@ export function Document({ style }) {
 
   return (
     <div className="yorkie-root content-wrap" style={{ ...style }}>
-      <div className="title">{currentDocKey || 'Document'}</div>
+      <div className="devtools-tab-toolbar">
+        <span className="title">{currentDocKey || 'Document'}</span>
+        <button
+          className="toggle-tab-btn"
+          onClick={() => {
+            setHidePresenceTab((v: boolean) => !v);
+          }}
+        >
+          {hidePresenceTab ? '◂' : '▸'}
+        </button>
+      </div>
+
       <div className="content">
         <RootTree root={root} />
         {selectedNode && (