From 25713efdbbb8c499e9743ab6253ce291e859ac56 Mon Sep 17 00:00:00 2001
From: Jacob Lee <jacoblee93@gmail.com>
Date: Tue, 17 Oct 2023 18:07:05 -0700
Subject: [PATCH] UI fixes (#200)

* UI fixes

* Add source code link
---
 .../app/components/AutoResizeTextarea.tsx       |  2 +-
 .../app/components/ChatMessageBubble.tsx        |  3 ++-
 chat-langchain/app/components/ChatWindow.tsx    | 17 ++++++++++++++++-
 chat-langchain/app/components/EmptyState.tsx    |  3 +--
 chat-langchain/public/images/github-mark.svg    |  1 +
 5 files changed, 21 insertions(+), 5 deletions(-)
 create mode 100644 chat-langchain/public/images/github-mark.svg

diff --git a/chat-langchain/app/components/AutoResizeTextarea.tsx b/chat-langchain/app/components/AutoResizeTextarea.tsx
index 333e1f193..567c7734c 100644
--- a/chat-langchain/app/components/AutoResizeTextarea.tsx
+++ b/chat-langchain/app/components/AutoResizeTextarea.tsx
@@ -24,7 +24,7 @@ export const AutoResizeTextarea = React.forwardRef<
   return (
     <Textarea
       minH="unset"
-      overflow="scroll"
+      overflow="auto"
       w="100%"
       resize="none"
       ref={ref as React.RefObject<HTMLTextAreaElement>}
diff --git a/chat-langchain/app/components/ChatMessageBubble.tsx b/chat-langchain/app/components/ChatMessageBubble.tsx
index c1285abdc..c4d46aa40 100644
--- a/chat-langchain/app/components/ChatMessageBubble.tsx
+++ b/chat-langchain/app/components/ChatMessageBubble.tsx
@@ -356,8 +356,9 @@ export function ChatMessageBubble(props: {
               }}
               isLoading={traceIsLoading}
               loadingText="🔄"
+              color="white"
             >
-              🛠️🔗
+              🦜🛠️ View trace
             </Button>
           </HStack>
         )}
diff --git a/chat-langchain/app/components/ChatWindow.tsx b/chat-langchain/app/components/ChatWindow.tsx
index 3bf2d13d8..f8f35ee18 100644
--- a/chat-langchain/app/components/ChatWindow.tsx
+++ b/chat-langchain/app/components/ChatWindow.tsx
@@ -105,6 +105,7 @@ export function ChatWindow(props: {
           },
           include_names: [sourceStepName],
         }),
+        openWhenHidden: true,
         onerror(err) {
           throw err;
         },
@@ -215,7 +216,6 @@ export function ChatWindow(props: {
         <AutoResizeTextarea
           value={input}
           maxRows={5}
-          rounded={"full"}
           marginRight={"56px"}
           placeholder="What is LangChain Expression Language?"
           textColor={"white"}
@@ -245,6 +245,21 @@ export function ChatWindow(props: {
           />
         </InputRightElement>
       </InputGroup>
+
+      {messages.length === 0 ? (
+        <footer className="flex justify-center absolute bottom-8">
+          <a
+            href="https://github.com/langchain-ai/chat-langchain"
+            target="_blank"
+            className="text-white flex items-center"
+          >
+            <img src="/images/github-mark.svg" className="h-4 mr-1" />
+            <span>View Source</span>
+          </a>
+        </footer>
+      ) : (
+        ""
+      )}
     </div>
   );
 }
diff --git a/chat-langchain/app/components/EmptyState.tsx b/chat-langchain/app/components/EmptyState.tsx
index b89fe49e2..7f4b7666a 100644
--- a/chat-langchain/app/components/EmptyState.tsx
+++ b/chat-langchain/app/components/EmptyState.tsx
@@ -1,4 +1,4 @@
-import { MouseEvent, MouseEventHandler } from "react";
+import { MouseEvent } from "react";
 import {
   Heading,
   Link,
@@ -7,7 +7,6 @@ import {
   Flex,
   Spacer,
 } from "@chakra-ui/react";
-import { ExternalLinkIcon } from "@chakra-ui/icons";
 
 export function EmptyState(props: { onChoice: (question: string) => any }) {
   const handleClick = (e: MouseEvent) => {
diff --git a/chat-langchain/public/images/github-mark.svg b/chat-langchain/public/images/github-mark.svg
new file mode 100644
index 000000000..9b858f4ad
--- /dev/null
+++ b/chat-langchain/public/images/github-mark.svg
@@ -0,0 +1 @@
+<svg width="98" height="96" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M48.854 0C21.839 0 0 22 0 49.217c0 21.756 13.993 40.172 33.405 46.69 2.427.49 3.316-1.059 3.316-2.362 0-1.141-.08-5.052-.08-9.127-13.59 2.934-16.42-5.867-16.42-5.867-2.184-5.704-5.42-7.17-5.42-7.17-4.448-3.015.324-3.015.324-3.015 4.934.326 7.523 5.052 7.523 5.052 4.367 7.496 11.404 5.378 14.235 4.074.404-3.178 1.699-5.378 3.074-6.6-10.839-1.141-22.243-5.378-22.243-24.283 0-5.378 1.94-9.778 5.014-13.2-.485-1.222-2.184-6.275.486-13.038 0 0 4.125-1.304 13.426 5.052a46.97 46.97 0 0 1 12.214-1.63c4.125 0 8.33.571 12.213 1.63 9.302-6.356 13.427-5.052 13.427-5.052 2.67 6.763.97 11.816.485 13.038 3.155 3.422 5.015 7.822 5.015 13.2 0 18.905-11.404 23.06-22.324 24.283 1.78 1.548 3.316 4.481 3.316 9.126 0 6.6-.08 11.897-.08 13.526 0 1.304.89 2.853 3.316 2.364 19.412-6.52 33.405-24.935 33.405-46.691C97.707 22 75.788 0 48.854 0z" fill="#ffffff"/></svg>
\ No newline at end of file