load all messages for explorer assistant response, app conversation display, and transcript export; plus overflow support for assistant canvas

workbench-app/src/Constants.ts

@@ -9,6 +9,7 @@ export const Constants = {
         maxInputLength: 2000000, // 2M tokens, effectively unlimited
         minChatWidthPercent: 20,
         defaultChatWidthPercent: 33,
+        maxMessagesPerRequest: 500,
         maxFileAttachmentsPerMessage: 10,
         loaderDelayMs: 100,
         responsiveBreakpoints: {

workbench-app/src/components/App/Loading.tsx

@@ -1,6 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
-import { Spinner, makeStyles, shorthands, tokens } from '@fluentui/react-components';
+import { Spinner, makeStyles, mergeClasses, shorthands, tokens } from '@fluentui/react-components';
 import React from 'react';
 import { Constants } from '../../Constants';
 
@@ -10,7 +10,12 @@ const useClasses = makeStyles({
     },
 });
 
-export const Loading: React.FC = () => {
+interface LoadingProps {
+    className?: string;
+}
+
+export const Loading: React.FC<LoadingProps> = (props) => {
+    const { className } = props;
     const classes = useClasses();
     const [showSpinner, setShowSpinner] = React.useState(false);
 
@@ -22,5 +27,7 @@ export const Loading: React.FC = () => {
         return () => clearTimeout(timer);
     }, []);
 
-    return showSpinner ? <Spinner className={classes.root} size="medium" label="Loading..." /> : null;
+    return showSpinner ? (
+        <Spinner className={mergeClasses(classes.root, className)} size="medium" label="Loading..." />
+    ) : null;
 };

workbench-app/src/components/App/OverflowMenu.tsx

@@ -0,0 +1,91 @@
+import {
+    Button,
+    makeStyles,
+    Menu,
+    MenuItem,
+    MenuList,
+    MenuPopover,
+    MenuTrigger,
+    Slot,
+    tokens,
+    useIsOverflowItemVisible,
+    useOverflowMenu,
+} from '@fluentui/react-components';
+import { MoreHorizontalRegular } from '@fluentui/react-icons';
+import React from 'react';
+
+const useClasses = makeStyles({
+    menu: {
+        backgroundColor: tokens.colorNeutralBackground1,
+    },
+    menuButton: {
+        alignSelf: 'center',
+    },
+});
+
+export interface OverflowMenuItemData {
+    id: string;
+    icon?: Slot<'span'>;
+    name?: string;
+}
+
+interface OverflowMenuItemProps {
+    item: OverflowMenuItemData;
+    onClick: (event: React.MouseEvent, id: string) => void;
+}
+
+export const OverflowMenuItem: React.FC<OverflowMenuItemProps> = (props) => {
+    const { item, onClick } = props;
+    const isVisible = useIsOverflowItemVisible(item.id);
+
+    if (isVisible) {
+        return null;
+    }
+
+    return (
+        <MenuItem key={item.id} icon={item.icon} onClick={(event) => onClick(event, item.id)}>
+            {item.name}
+        </MenuItem>
+    );
+};
+
+interface OverflowMenuProps {
+    items: OverflowMenuItemData[];
+    onItemSelect: (id: string) => void;
+}
+
+export const OverflowMenu: React.FC<OverflowMenuProps> = (props) => {
+    const { items, onItemSelect } = props;
+    const classes = useClasses();
+    const { ref, isOverflowing, overflowCount } = useOverflowMenu<HTMLButtonElement>();
+
+    const handleItemClick = (_event: React.MouseEvent, id: string) => {
+        onItemSelect(id);
+    };
+
+    if (!isOverflowing) {
+        return null;
+    }
+
+    return (
+        <Menu hasIcons={items.find((item) => item.icon !== undefined) !== undefined}>
+            <MenuTrigger disableButtonEnhancement>
+                <Button
+                    className={classes.menuButton}
+                    appearance="transparent"
+                    ref={ref}
+                    icon={<MoreHorizontalRegular />}
+                    aria-label={`${overflowCount} more options`}
+                    role="tab"
+                />
+            </MenuTrigger>
+            <MenuPopover>
+                <MenuList className={classes.menu}>
+                    {items.map((item) => (
+                        <OverflowMenuItem key={item.id} item={item} onClick={handleItemClick}></OverflowMenuItem>
+                    ))}
+                </MenuList>
+            </MenuPopover>
+        </Menu>
+    );
+};

workbench-app/src/components/Conversations/Canvas/AssistantCanvasList.tsx

@@ -1,10 +1,11 @@
 // Copyright (c) Microsoft. All rights reserved.
 
-import { Tab, TabList, makeStyles, shorthands, tokens } from '@fluentui/react-components';
+import { Overflow, OverflowItem, Tab, TabList, makeStyles, shorthands, tokens } from '@fluentui/react-components';
 import React from 'react';
 import { useChatCanvasController } from '../../../libs/useChatCanvasController';
 import { Assistant } from '../../../models/Assistant';
 import { Conversation } from '../../../models/Conversation';
+import { OverflowMenu, OverflowMenuItemData } from '../../App/OverflowMenu';
 import { AssistantCanvas } from './AssistantCanvas';
 
 const useClasses = makeStyles({
@@ -20,13 +21,10 @@ const useClasses = makeStyles({
         justifyContent: 'space-between',
         ...shorthands.padding(tokens.spacingVerticalS),
     },
-    headerContent: {
-        display: 'flex',
-        flexDirection: 'row',
-        alignItems: 'center',
-        justifyContent: 'space-between',
-        gap: tokens.spacingHorizontalM,
+    header: {
+        overflow: 'hidden',
         ...shorthands.padding(tokens.spacingVerticalS),
+        ...shorthands.borderBottom(tokens.strokeWidthThin, 'solid', tokens.colorNeutralStroke1),
     },
 });
 
@@ -41,40 +39,66 @@ export const AssistantCanvasList: React.FC<AssistantCanvasListProps> = (props) =
     const classes = useClasses();
     const chatCanvasController = useChatCanvasController();
 
+    const tabItems = React.useMemo(
+        () =>
+            conversationAssistants.slice().map(
+                (assistant): OverflowMenuItemData => ({
+                    id: assistant.id,
+                    name: assistant.name,
+                }),
+            ),
+        [conversationAssistants],
+    );
+
+    const handleTabSelect = React.useCallback(
+        (id: string) => {
+            // Find the assistant that corresponds to the selected tab
+            const conversationAssistant = conversationAssistants.find(
+                (conversationAssistant) => conversationAssistant.id === id,
+            );
+
+            // Set the new assistant as the active assistant
+            // If we can't find the assistant, we'll set the assistant to undefined
+            chatCanvasController.transitionToState({
+                selectedAssistantId: conversationAssistant?.id,
+                selectedAssistantStateId: undefined,
+            });
+        },
+        [chatCanvasController, conversationAssistants],
+    );
+
+    const assistant = React.useMemo(
+        () => selectedAssistant ?? conversationAssistants[0],
+        [selectedAssistant, conversationAssistants],
+    );
+
     if (conversationAssistants.length === 1) {
         // Only one assistant, no need to show tabs, just show the single assistant
         return <AssistantCanvas assistant={conversationAssistants[0]} conversationId={conversation.id} />;
     }
 
-    const assistant = selectedAssistant ?? conversationAssistants[0];
-
     // Multiple assistants, show tabs
     return (
         <div className={classes.root}>
-            <div className={classes.headerContent}>
-                <TabList
-                    selectedValue={assistant.id}
-                    onTabSelect={(_event, selectedItem) => {
-                        // Find the assistant that corresponds to the selected tab
-                        const conversationAssistant = conversationAssistants.find(
-                            (conversationAssistant) => conversationAssistant.id === selectedItem.value,
-                        );
-
-                        // Set the new assistant as the active assistant
-                        // If we can't find the assistant, we'll set the assistant to undefined
-                        chatCanvasController.transitionToState({
-                            selectedAssistantId: conversationAssistant?.id,
-                            selectedAssistantStateId: undefined,
-                        });
-                    }}
-                    size="small"
-                >
-                    {conversationAssistants.slice().map((assistant) => (
-                        <Tab value={assistant.id} key={assistant.id}>
-                            {assistant.name}
-                        </Tab>
-                    ))}
-                </TabList>
+            <div className={classes.header}>
+                <Overflow minimumVisible={1}>
+                    <TabList
+                        selectedValue={assistant.id}
+                        onTabSelect={(_, data) => handleTabSelect(data.value as string)}
+                        size="small"
+                    >
+                        {tabItems.map((tabItem) => (
+                            <OverflowItem
+                                key={tabItem.id}
+                                id={tabItem.id}
+                                priority={tabItem.id === assistant.id ? 2 : 1}
+                            >
+                                <Tab value={tabItem.id}>{tabItem.name}</Tab>
+                            </OverflowItem>
+                        ))}
+                        <OverflowMenu items={tabItems} onItemSelect={handleTabSelect} />
+                    </TabList>
+                </Overflow>
             </div>
             <AssistantCanvas assistant={assistant} conversationId={conversation.id} />
         </div>

workbench-app/src/components/Conversations/Canvas/AssistantInspectorList.tsx

@@ -1,20 +1,12 @@
 // Copyright (c) Microsoft. All rights reserved.
 
-import {
-    SelectTabData,
-    SelectTabEvent,
-    SelectTabEventHandler,
-    Tab,
-    TabList,
-    makeStyles,
-    shorthands,
-    tokens,
-} from '@fluentui/react-components';
+import { Overflow, OverflowItem, Tab, TabList, makeStyles, shorthands, tokens } from '@fluentui/react-components';
 import React from 'react';
 import { useChatCanvasController } from '../../../libs/useChatCanvasController';
 import { Assistant } from '../../../models/Assistant';
 import { AssistantStateDescription } from '../../../models/AssistantStateDescription';
 import { useAppSelector } from '../../../redux/app/hooks';
+import { OverflowMenu, OverflowMenuItemData } from '../../App/OverflowMenu';
 import { AssistantInspector } from './AssistantInspector';
 
 const useClasses = makeStyles({
@@ -25,17 +17,8 @@ const useClasses = makeStyles({
     },
     header: {
         flexShrink: 0,
-        display: 'flex',
-        flexDirection: 'column',
-        justifyContent: 'space-between',
-        backgroundImage: `linear-gradient(to right, ${tokens.colorNeutralBackground1}, ${tokens.colorBrandBackground2})`,
-    },
-    headerContent: {
-        display: 'flex',
-        flexDirection: 'row',
-        alignItems: 'center',
-        justifyContent: 'space-between',
-        gap: tokens.spacingHorizontalM,
+        height: 'fit-content',
+        overflow: 'hidden',
         ...shorthands.padding(tokens.spacingVerticalS),
         ...shorthands.borderBottom(tokens.strokeWidthThin, 'solid', tokens.colorNeutralStroke1),
     },
@@ -57,6 +40,34 @@ export const AssistantInspectorList: React.FC<AssistantInspectorListProps> = (pr
     const chatCanvasState = useAppSelector((state) => state.chatCanvas);
     const chatCanvasController = useChatCanvasController();
 
+    const selectedStateDescription = React.useMemo(
+        () =>
+            stateDescriptions.find(
+                (stateDescription) => stateDescription.id === chatCanvasState.selectedAssistantStateId,
+            ) ?? stateDescriptions[0],
+        [stateDescriptions, chatCanvasState.selectedAssistantStateId],
+    );
+
+    const tabItems = React.useMemo(
+        () =>
+            stateDescriptions
+                .filter((stateDescription) => stateDescription.id !== 'config')
+                .map(
+                    (stateDescription): OverflowMenuItemData => ({
+                        id: stateDescription.id,
+                        name: stateDescription.displayName,
+                    }),
+                ),
+        [stateDescriptions],
+    );
+
+    const handleTabSelect = React.useCallback(
+        (id: string) => {
+            chatCanvasController.transitionToState({ selectedAssistantStateId: id });
+        },
+        [chatCanvasController],
+    );
+
     if (stateDescriptions.length === 1) {
         // Only one assistant state, no need to show tabs, just show the single assistant state
         return (
@@ -68,42 +79,37 @@ export const AssistantInspectorList: React.FC<AssistantInspectorListProps> = (pr
         );
     }
 
-    const onTabSelect: SelectTabEventHandler = (_event: SelectTabEvent, data: SelectTabData) => {
-        chatCanvasController.transitionToState({ selectedAssistantStateId: data.value as string });
-    };
-
     if (stateDescriptions.length === 0) {
         return (
             <div className={classes.root}>
                 <div className={classes.header}>
-                    <div className={classes.headerContent}>
-                        <div>No assistant state inspectors available</div>
-                    </div>
+                    <div>No assistant state inspectors available</div>
                 </div>
             </div>
         );
     }
 
-    const selectedStateDescription =
-        stateDescriptions.find(
-            (stateDescription) => stateDescription.id === chatCanvasState.selectedAssistantStateId,
-        ) ?? stateDescriptions[0];
-    const selectedTab = selectedStateDescription.id;
-
     return (
         <div className={classes.root}>
             <div className={classes.header}>
-                <div className={classes.headerContent}>
-                    <TabList selectedValue={selectedTab} onTabSelect={onTabSelect} size="small">
-                        {stateDescriptions
-                            .filter((stateDescription) => stateDescription.id !== 'config')
-                            .map((stateDescription) => (
-                                <Tab key={stateDescription.id} value={stateDescription.id}>
-                                    {stateDescription.displayName}
-                                </Tab>
-                            ))}
+                <Overflow minimumVisible={1}>
+                    <TabList
+                        selectedValue={selectedStateDescription.id}
+                        onTabSelect={(_, data) => handleTabSelect(data.value as string)}
+                        size="small"
+                    >
+                        {tabItems.map((tabItem) => (
+                            <OverflowItem
+                                key={tabItem.id}
+                                id={tabItem.id}
+                                priority={tabItem.id === selectedStateDescription.id ? 2 : 1}
+                            >
+                                <Tab value={tabItem.id}>{tabItem.name}</Tab>
+                            </OverflowItem>
+                        ))}
+                        <OverflowMenu items={tabItems} onItemSelect={handleTabSelect} />
                     </TabList>
-                </div>
+                </Overflow>
             </div>
             <div className={classes.body}>
                 <AssistantInspector