From 067cf31f405581bd5ef77e8aebc060b1d986e8d4 Mon Sep 17 00:00:00 2001
From: Timothy Jaeryang Baek <tim@openwebui.com>
Date: Mon, 27 Jul 2026 01:32:41 -0400
Subject: [PATCH] refac

---
 src/lib/components/chat/ChatControls.svelte  |   2 -
 src/lib/components/chat/Overview.svelte      |   9 +-
 src/lib/components/chat/Overview/Flow.svelte |  17 ++-
 src/lib/components/chat/Overview/Node.svelte |   4 +-
 src/lib/components/chat/Overview/View.svelte | 106 ++++++++++---------
 5 files changed, 73 insertions(+), 65 deletions(-)

diff --git a/src/lib/components/chat/ChatControls.svelte b/src/lib/components/chat/ChatControls.svelte
index ef7592e4dc..488e59be04 100644
--- a/src/lib/components/chat/ChatControls.svelte
+++ b/src/lib/components/chat/ChatControls.svelte
@@ -372,7 +372,6 @@
 										const node = e.node;
 										showMessage(node.data.message, true);
 									}}
-									onClose={() => showControls.set(false)}
 								/>
 							{:else if activeTab === 'files' && $selectedTerminalId}
 								<FileNav onAttach={handleTerminalAttach} {chatId} />
@@ -522,7 +521,6 @@
 											}
 											showMessage(node.data.message, true);
 										}}
-										onClose={() => showControls.set(false)}
 									/>
 								{:else if activeTab === 'files' && $selectedTerminalId}
 									<FileNav onAttach={handleTerminalAttach} overlay={dragged} {chatId} />
diff --git a/src/lib/components/chat/Overview.svelte b/src/lib/components/chat/Overview.svelte
index 3708fa9061..94cddcbec2 100644
--- a/src/lib/components/chat/Overview.svelte
+++ b/src/lib/components/chat/Overview.svelte
@@ -1,17 +1,12 @@
 <script lang="ts">
-	import { getContext, createEventDispatcher, onDestroy } from 'svelte';
-	import { useSvelteFlow, useNodesInitialized, useStore, SvelteFlowProvider } from '@xyflow/svelte';
-
-	const dispatch = createEventDispatcher();
+	import { SvelteFlowProvider } from '@xyflow/svelte';
 
 	import View from './Overview/View.svelte';
 
 	export let history;
-
-	export let onClose;
 	export let onNodeClick;
 </script>
 
 <SvelteFlowProvider>
-	<View {history} {onClose} {onNodeClick} />
+	<View {history} {onNodeClick} />
 </SvelteFlowProvider>
diff --git a/src/lib/components/chat/Overview/Flow.svelte b/src/lib/components/chat/Overview/Flow.svelte
index d3963e22ae..626398cf30 100644
--- a/src/lib/components/chat/Overview/Flow.svelte
+++ b/src/lib/components/chat/Overview/Flow.svelte
@@ -1,7 +1,9 @@
 <script>
 	import { createEventDispatcher } from 'svelte';
+	import { getContext } from 'svelte';
 
 	const dispatch = createEventDispatcher();
+	const i18n = getContext('i18n');
 
 	import { theme } from '$lib/stores';
 	import {
@@ -11,15 +13,16 @@
 		BackgroundVariant,
 		ControlButton
 	} from '@xyflow/svelte';
-	import BarsArrowUp from '$lib/components/icons/BarsArrowUp.svelte';
-	import Bars3BottomLeft from '$lib/components/icons/Bars3BottomLeft.svelte';
 	import AlignVertical from '$lib/components/icons/AlignVertical.svelte';
 	import AlignHorizontal from '$lib/components/icons/AlignHorizontal.svelte';
+	import Pin from '$lib/components/icons/Pin.svelte';
+	import PinSlash from '$lib/components/icons/PinSlash.svelte';
 
 	export let nodes;
 	export let nodeTypes;
 	export let edges;
 	export let setLayoutDirection;
+	export let pinned = false;
 </script>
 
 <SvelteFlow
@@ -43,6 +46,16 @@
 	}}
 >
 	<Controls showLock={false}>
+		<ControlButton
+			on:click={() => (pinned = !pinned)}
+			title={pinned ? $i18n.t('Viewport Pinned') : $i18n.t('Viewport Unpinned')}
+		>
+			{#if pinned}
+				<Pin />
+			{:else}
+				<PinSlash />
+			{/if}
+		</ControlButton>
 		<ControlButton on:click={() => setLayoutDirection('vertical')} title="Vertical Layout">
 			<AlignVertical className="size-4" />
 		</ControlButton>
diff --git a/src/lib/components/chat/Overview/Node.svelte b/src/lib/components/chat/Overview/Node.svelte
index b4376194cb..09f40b2b99 100644
--- a/src/lib/components/chat/Overview/Node.svelte
+++ b/src/lib/components/chat/Overview/Node.svelte
@@ -33,7 +33,7 @@
 					src={`${WEBUI_API_BASE_URL}/users/${data.user.id}/profile/image`}
 					className={'size-5 -translate-y-[1px] flex-shrink-0'}
 				/>
-				<div class="ml-2">
+				<div class="ml-2 flex-1 min-w-0">
 					<div class=" flex justify-between items-center">
 						<div class="text-xs text-black dark:text-white font-normal line-clamp-1">
 							{data?.user?.name ?? 'User'}
@@ -54,7 +54,7 @@
 					className={'size-5 -translate-y-[1px] flex-shrink-0'}
 				/>
 
-				<div class="ml-2">
+				<div class="ml-2 flex-1 min-w-0">
 					<div class=" flex justify-between items-center">
 						<div class="text-xs text-black dark:text-white font-normal line-clamp-1">
 							{data?.model?.name ?? data?.message?.model ?? 'Assistant'}
diff --git a/src/lib/components/chat/Overview/View.svelte b/src/lib/components/chat/Overview/View.svelte
index d757c69dd2..35e463d691 100644
--- a/src/lib/components/chat/Overview/View.svelte
+++ b/src/lib/components/chat/Overview/View.svelte
@@ -1,37 +1,43 @@
 <script lang="ts">
-	import { getContext, createEventDispatcher, onDestroy } from 'svelte';
-	import { useSvelteFlow, useNodesInitialized, useStore } from '@xyflow/svelte';
-
-	const dispatch = createEventDispatcher();
-	const i18n = getContext('i18n');
-
 	import { onMount, tick } from 'svelte';
+	import {
+		useSvelteFlow,
+		useNodesInitialized,
+		useStore,
+		type Edge,
+		type Node
+	} from '@xyflow/svelte';
 
 	import { writable } from 'svelte/store';
-	import { models, theme, user } from '$lib/stores';
+	import { models, user } from '$lib/stores';
 
 	import '@xyflow/svelte/dist/style.css';
 
 	import CustomNode from './Node.svelte';
 	import Flow from './Flow.svelte';
-	import XMark from '../../icons/XMark.svelte';
-	import ArrowLeft from '../../icons/ArrowLeft.svelte';
 
 	const { width, height } = useStore();
 
-	const { fitView, getViewport } = useSvelteFlow();
+	const { fitView } = useSvelteFlow();
 	const nodesInitialized = useNodesInitialized();
 
 	export let history;
-	export let onClose;
 	export let onNodeClick;
 
-	let selectedMessageId = null;
+	type LayoutDirection = 'vertical' | 'horizontal';
+	type PositionMapEntry = {
+		id: string;
+		level: number;
+		position: number;
+	};
 
-	const nodes = writable([]);
-	const edges = writable([]);
+	let selectedMessageId: string | null = null;
+	let pinned = false;
 
-	let layoutDirection = 'vertical';
+	const nodes = writable<Node[]>([]);
+	const edges = writable<Edge[]>([]);
+
+	let layoutDirection: LayoutDirection = 'vertical';
 
 	const nodeTypes = {
 		custom: CustomNode
@@ -41,7 +47,7 @@
 		drawFlow(layoutDirection);
 	}
 
-	$: if (history && history.currentId) {
+	$: if (history && history.currentId && !pinned) {
 		focusNode();
 	}
 
@@ -55,23 +61,17 @@
 		selectedMessageId = null;
 	};
 
-	const drawFlow = async (direction) => {
-		const nodeList = [];
-		const edgeList = [];
+	const drawFlow = async (direction: LayoutDirection) => {
+		const nodeList: Node[] = [];
+		const edgeList: Edge[] = [];
 		const levelOffset = direction === 'vertical' ? 150 : 300;
 		const siblingOffset = direction === 'vertical' ? 250 : 150;
 
 		// Map to keep track of node positions at each level
-		let positionMap = new Map();
-
-		// Helper function to truncate labels
-		function createLabel(content) {
-			const maxLength = 100;
-			return content.length > maxLength ? content.substr(0, maxLength) + '...' : content;
-		}
+		let positionMap = new Map<string, PositionMapEntry>();
 
 		// Create nodes and map children to ensure alignment in width
-		let layerWidths = {}; // Track widths of each layer
+		let layerWidths: Record<number, number> = {}; // Track widths of each layer
 
 		Object.keys(history.messages).forEach((id) => {
 			const message = history.messages[id];
@@ -125,15 +125,15 @@
 		await nodes.set([...nodeList]);
 	};
 
-	const recurseCheckChild = (nodeId, currentId) => {
+	const recurseCheckChild = (nodeId: string, currentId: string): boolean => {
 		const node = history.messages[nodeId];
 		return (
 			node.childrenIds &&
-			node.childrenIds.some((id) => id === currentId || recurseCheckChild(id, currentId))
+			node.childrenIds.some((id: string) => id === currentId || recurseCheckChild(id, currentId))
 		);
 	};
 
-	const setLayoutDirection = (direction) => {
+	const setLayoutDirection = (direction: LayoutDirection) => {
 		layoutDirection = direction;
 		drawFlow(layoutDirection);
 	};
@@ -141,33 +141,31 @@
 	onMount(() => {
 		drawFlow(layoutDirection);
 
-		nodesInitialized.subscribe(async (initialized) => {
-			if (initialized) {
+		const stopNodesInitialized = nodesInitialized.subscribe(async (initialized) => {
+			if (initialized && !pinned) {
 				await tick();
-				const res = await fitView({ nodes: [{ id: history.currentId }] });
+				await fitView({ nodes: [{ id: history.currentId }] });
 			}
 		});
-
-		width.subscribe((value) => {
-			if (value) {
-				// fitView();
+		const stopWidth = width.subscribe((value) => {
+			if (value && !pinned) {
+				fitView({ nodes: [{ id: history.currentId }] });
+			}
+		});
+		const stopHeight = height.subscribe((value) => {
+			if (value && !pinned) {
 				fitView({ nodes: [{ id: history.currentId }] });
 			}
 		});
 
-		height.subscribe((value) => {
-			if (value) {
-				// fitView();
-				fitView({ nodes: [{ id: history.currentId }] });
-			}
-		});
-	});
-
-	onDestroy(() => {
-		console.log('Overview destroyed');
-
-		nodes.set([]);
-		edges.set([]);
+		return () => {
+			console.log('Overview destroyed');
+			stopNodesInitialized();
+			stopWidth();
+			stopHeight();
+			nodes.set([]);
+			edges.set([]);
+		};
 	});
 </script>
 
@@ -178,10 +176,14 @@
 			{nodeTypes}
 			{edges}
 			{setLayoutDirection}
+			bind:pinned
 			on:nodeclick={(e) => {
 				onNodeClick(e.detail);
-				selectedMessageId = e.detail.node.data.message.id;
-				fitView({ nodes: [{ id: selectedMessageId }] });
+				const clickedMessageId = e.detail.node.data.message.id as string;
+				selectedMessageId = clickedMessageId;
+				if (!pinned) {
+					fitView({ nodes: [{ id: clickedMessageId }] });
+				}
 			}}
 		/>
 	{/if}