fix: use accordion for steps and fix streaming auto scroll

cypress/e2e/remove_elements/spec.cy.ts

@@ -9,6 +9,7 @@ describe('remove_elements', () => {
     cy.get('#step-tool1').should('exist');
     cy.get('#step-tool1').click();
     cy.get('#step-tool1')
+      .parent()
       .parent()
       .find('.inline-image')
       .should('have.length', 1);

cypress/e2e/streaming/spec.cy.ts

@@ -13,9 +13,9 @@ function toolStream(tool: string) {
   const toolCall = cy.get(`#step-${tool}`);
   toolCall.click();
   for (const token of tokenList) {
-    toolCall.parent().should('contain', token);
+    toolCall.parent().parent().should('contain', token);
   }
-  toolCall.parent().should('contain', tokenList.join(' '));
+  toolCall.parent().parent().should('contain', tokenList.join(' '));
 }
 
 describe('Streaming', () => {

cypress/e2e/update_step/spec.cy.ts

@@ -9,9 +9,9 @@ describe('Update Step', () => {
     cy.get(`#step-tool1`).click();
     cy.get('.step').should('have.length', 2);
     cy.get('.step').eq(0).should('contain', 'Hello!');
-    cy.get(`#step-tool1`).parent().should('contain', 'Foo');
+    cy.get(`#step-tool1`).parent().parent().should('contain', 'Foo');
 
     cy.get('.step').eq(0).should('contain', 'Hello again!');
-    cy.get(`#step-tool1`).parent().should('contain', 'Foo Bar');
+    cy.get(`#step-tool1`).parent().parent().should('contain', 'Foo Bar');
   });
 });

frontend/src/components/CodeSnippet.tsx

@@ -1,3 +1,4 @@
+import { cn } from '@/lib/utils';
 import hljs from 'highlight.js';
 import { useEffect, useRef } from 'react';
 
@@ -64,7 +65,9 @@ export default function CodeSnippet({ ...props }: CodeProps) {
   ) : null;
 
   const nonHighlightedCode = showSyntaxHighlighter ? null : (
-    <div className="p-2 rounded-b-md min-h-20 overflow-x-auto bg-accent">
+    <div
+      className={cn('rounded-b-md overflow-x-auto bg-accent', code && 'p-2')}
+    >
       <code className="whitespace-pre-wrap">{code}</code>
     </div>
   );

frontend/src/components/MarkdownAlert.tsx

@@ -174,8 +174,6 @@ const AlertComponent = ({
   const style = variantStyles[variant];
   const Icon = style.Icon;
 
-  // console.log('AlertComponent rendering:', variant, children);
-
   return (
     <div className={cn('rounded-lg p-4 mb-4', style.container)}>
       <div className="flex">

frontend/src/components/ReadOnlyThread.tsx

@@ -146,6 +146,7 @@ const ReadOnlyThread = ({ id }: Props) => {
     return {
       allowHtml: config?.features?.unsafe_allow_html,
       latex: config?.features?.latex,
+      editable: false,
       loading: false,
       showFeedbackButtons: !!config?.dataPersistence,
       uiName: config?.ui?.name || '',

frontend/src/components/chat/Footer.tsx

@@ -1,34 +1,26 @@
 import { cn, hasMessage } from '@/lib/utils';
+import { MutableRefObject } from 'react';
 
 import { FileSpec, useChatMessages } from '@chainlit/react-client';
 
 import WaterMark from '@/components/WaterMark';
 
 import MessageComposer from './MessageComposer';
-import ScrollDownButton from './ScrollDownButton';
 
 interface Props {
   fileSpec: FileSpec;
   onFileUpload: (payload: File[]) => void;
   onFileUploadError: (error: string) => void;
-  setAutoScroll: (autoScroll: boolean) => void;
-  autoScroll: boolean;
+  autoScrollRef: MutableRefObject<boolean>;
   showIfEmptyThread?: boolean;
 }
 
-export default function ChatFooter({
-  autoScroll,
-  showIfEmptyThread,
-  ...props
-}: Props) {
+export default function ChatFooter({ showIfEmptyThread, ...props }: Props) {
   const { messages } = useChatMessages();
   if (!hasMessage(messages) && !showIfEmptyThread) return null;
 
   return (
     <div className={cn('relative flex flex-col items-center gap-2 w-full')}>
-      {!autoScroll ? (
-        <ScrollDownButton onClick={() => props.setAutoScroll(true)} />
-      ) : null}
       <MessageComposer {...props} />
       <WaterMark />
     </div>

frontend/src/components/chat/MessageComposer/index.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useRef, useState } from 'react';
+import { MutableRefObject, useCallback, useRef, useState } from 'react';
 import { useTranslation } from 'react-i18next';
 import { useRecoilState, useSetRecoilState } from 'recoil';
 import { v4 as uuidv4 } from 'uuid';
@@ -29,14 +29,14 @@ interface Props {
   fileSpec: FileSpec;
   onFileUpload: (payload: File[]) => void;
   onFileUploadError: (error: string) => void;
-  setAutoScroll: (autoScroll: boolean) => void;
+  autoScrollRef: MutableRefObject<boolean>;
 }
 
 export default function MessageComposer({
   fileSpec,
   onFileUpload,
   onFileUploadError,
-  setAutoScroll
+  autoScrollRef
 }: Props) {
   const inputRef = useRef<InputMethods>(null);
   const [value, setValue] = useState('');
@@ -88,7 +88,9 @@ export default function MessageComposer({
         ?.filter((a) => !!a.serverId)
         .map((a) => ({ id: a.serverId! }));
 
-      setAutoScroll(true);
+      if (autoScrollRef) {
+        autoScrollRef.current = true;
+      }
       sendMessage(message, fileReferences);
     },
     [user, sendMessage]
@@ -107,7 +109,9 @@ export default function MessageComposer({
       };
 
       replyMessage(message);
-      setAutoScroll(true);
+      if (autoScrollRef) {
+        autoScrollRef.current = true;
+      }
     },
     [user, replyMessage]
   );

frontend/src/components/chat/Messages/Message/Content/index.tsx

@@ -38,11 +38,9 @@ const MessageContent = memo(
     const isMessage = message.type.includes('message');
 
     const outputMarkdown = (
-      <div className="flex flex-col gap-2">
-        {!isMessage && displayInput ? (
-          <div className="text-lg font-semibold leading-none tracking-tight">
-            Output
-          </div>
+      <>
+        {!isMessage && displayInput && message.output ? (
+          <div className="font-medium">Output</div>
         ) : null}
         <Markdown
           allowHtml={allowHtml}
@@ -51,7 +49,7 @@ const MessageContent = memo(
         >
           {output}
         </Markdown>
-      </div>
+      </>
     );
 
     let inputMarkdown;
@@ -73,18 +71,17 @@ const MessageContent = memo(
         });
 
       inputMarkdown = (
-        <div className="flex flex-col gap-2">
-          <div className="text-lg font-semibold leading-none tracking-tight">
-            Input
-          </div>
+        <>
+          <div className="font-medium">Input</div>
+
           <Markdown
             allowHtml={allowHtml}
             latex={latex}
             refElements={inputRefElements}
           >
             {input}
           </Markdown>
-        </div>
+        </>
       );
     }
 

frontend/src/components/chat/Messages/Message/Step.tsx

@@ -1,9 +1,14 @@
 import { cn } from '@/lib/utils';
-import { ChevronDown, ChevronUp } from 'lucide-react';
-import { PropsWithChildren, useMemo, useState } from 'react';
+import { PropsWithChildren, useMemo } from 'react';
 
 import type { IStep } from '@chainlit/react-client';
 
+import {
+  Accordion,
+  AccordionContent,
+  AccordionItem,
+  AccordionTrigger
+} from '@/components/ui/accordion';
 import { Translator } from 'components/i18n';
 
 interface Props {
@@ -16,52 +21,71 @@ export default function Step({
   children,
   isRunning
 }: PropsWithChildren<Props>) {
-  const [open, setOpen] = useState(false);
   const using = useMemo(() => {
     return isRunning && step.start && !step.end && !step.isError;
   }, [step, isRunning]);
 
   const hasContent = step.input || step.output || step.steps?.length;
   const isError = step.isError;
-
   const stepName = step.name;
 
-  return (
-    <div className="flex flex-col flex-grow w-0">
-      <p
-        className={cn(
-          'flex items-center gap-1 group/step',
-          isError && 'text-red-500',
-          hasContent && 'cursor-pointer',
-          !using && 'text-muted-foreground hover:text-foreground',
-          using && 'loading-shimmer'
-        )}
-        onClick={() => setOpen(!open)}
-        id={`step-${stepName}`}
-      >
-        {using ? (
-          <>
-            <Translator path="chat.messages.status.using" /> {stepName}
-          </>
-        ) : (
-          <>
-            <Translator path="chat.messages.status.used" /> {stepName}
-          </>
-        )}
-        {hasContent ? (
-          open ? (
-            <ChevronUp className="invisible group-hover/step:visible !size-4" />
+  // If there's no content, just render the status without accordion
+  if (!hasContent) {
+    return (
+      <div className="flex flex-col flex-grow w-0">
+        <p
+          className={cn(
+            'flex items-center gap-1 font-medium',
+            isError && 'text-red-500',
+            !using && 'text-muted-foreground',
+            using && 'loading-shimmer'
+          )}
+          id={`step-${stepName}`}
+        >
+          {using ? (
+            <>
+              <Translator path="chat.messages.status.using" /> {stepName}
+            </>
           ) : (
-            <ChevronDown className="invisible group-hover/step:visible !size-4" />
-          )
-        ) : null}
-      </p>
+            <>
+              <Translator path="chat.messages.status.used" /> {stepName}
+            </>
+          )}
+        </p>
+      </div>
+    );
+  }
 
-      {open && (
-        <div className="flex-grow mt-4 ml-2 pl-4 border-l-2 border-primary">
-          {children}
-        </div>
-      )}
+  return (
+    <div className="flex flex-col flex-grow w-0">
+      <Accordion type="single" collapsible className="w-full">
+        <AccordionItem value={step.id} className="border-none">
+          <AccordionTrigger
+            className={cn(
+              'flex items-center gap-1 justify-start transition-none p-0 hover:no-underline',
+              isError && 'text-red-500',
+              !using && 'text-muted-foreground hover:text-foreground',
+              using && 'loading-shimmer'
+            )}
+            id={`step-${stepName}`}
+          >
+            {using ? (
+              <>
+                <Translator path="chat.messages.status.using" /> {stepName}
+              </>
+            ) : (
+              <>
+                <Translator path="chat.messages.status.used" /> {stepName}
+              </>
+            )}
+          </AccordionTrigger>
+          <AccordionContent>
+            <div className="flex-grow mt-4 ml-1 pl-4 border-l-2 border-primary">
+              {children}
+            </div>
+          </AccordionContent>
+        </AccordionItem>
+      </Accordion>
     </div>
   );
 }

frontend/src/components/chat/Messages/Message/UserMessage.tsx

@@ -7,8 +7,7 @@ import {
   IMessageElement,
   IStep,
   messagesState,
-  useChatInteract,
-  useConfig
+  useChatInteract
 } from '@chainlit/react-client';
 
 import AutoResizeTextarea from '@/components/AutoResizeTextarea';
@@ -28,8 +27,7 @@ export default function UserMessage({
   elements,
   children
 }: React.PropsWithChildren<Props>) {
-  const config = useConfig();
-  const { askUser, loading } = useContext(MessageContext);
+  const { askUser, loading, editable } = useContext(MessageContext);
   const { editMessage } = useChatInteract();
   const setMessages = useSetRecoilState(messagesState);
   const disabled = loading || !!askUser;
@@ -42,8 +40,6 @@ export default function UserMessage({
     );
   }, [message.id, elements]);
 
-  const isEditable = !!config.config?.features.edit_message;
-
   const handleEdit = () => {
     if (editValue) {
       setMessages((prev) => {
@@ -65,7 +61,7 @@ export default function UserMessage({
       <InlinedElements elements={inlineElements} className="items-end" />
 
       <div className="flex flex-row items-center gap-1 w-full group">
-        {!isEditing && isEditable && (
+        {!isEditing && editable && (
           <Button
             variant="ghost"
             size="icon"
@@ -84,7 +80,7 @@ export default function UserMessage({
             'px-5 py-2.5 relative bg-accent rounded-3xl',
             inlineElements.length ? 'rounded-tr-lg' : '',
             isEditing ? 'w-full flex-grow' : 'max-w-[70%] flex-grow-0',
-            isEditable ? '' : 'ml-auto'
+            editable ? '' : 'ml-auto'
           )}
         >
           {isEditing ? (

frontend/src/components/chat/MessagesContainer/index.tsx

@@ -122,6 +122,7 @@ const MessagesContainer = ({ navigate }: Props) => {
       askUser,
       allowHtml: config?.features?.unsafe_allow_html,
       latex: config?.features?.latex,
+      editable: !!config?.features.edit_message,
       loading,
       showFeedbackButtons: enableFeedback,
       uiName: config?.ui?.name || '',