Repository: argon-chat/client
Pull request #4: Refactor message components and improve chat UI/UX
Author: login: titsex
Created: 2025-05-01T23:22:46Z | Merged: 2025-05-02T14:17:38Z

Simplified `MessageItem` styles and removed redundant logic for bubble colors. Refined scroll behavior in `ChatView` with smooth animations, resize handling, and a "scroll to bottom" button for new message alerts. Enhanced `EnterText` reply management with keyboard shortcuts.

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit

- **New Features**
  - Added a scroll-to-bottom button in chat view, which appears when scrolled up and shows new message count.
  - Implemented smooth animated scrolling when loading more chat messages.

- **Improvements**
  - Enhanced reply banner UI in the message input area with a clearer design and a new icon for clearing replies.
  - Simplified and unified message bubble styling for a consistent appearance.
  - Improved scroll behavior and responsiveness in chat history and chat view.
  - Updated message loading and subscription logic for better performance and reliability.

- **Bug Fixes**
  - Fixed Enter key handling in the message input area to ensure messages are sent correctly.
  - Ensured reply state is cleared after sending a message or pressing Escape.

- **Style**
  - Updated and streamlined CSS for chat bubbles, reply banners, scroll-to-bottom button, and smooth scrolling for a more modern look.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->


Diff:
diff --git a/src/components/ChatHistory.vue b/src/components/ChatHistory.vue
index 13dd4df..c7283d9 100644
--- a/src/components/ChatHistory.vue
+++ b/src/components/ChatHistory.vue
@@ -30,7 +30,6 @@ const scrollContainer: Ref<HTMLElement | null> = ref(null)
 const loading = ref(false)
 const page = ref(1)
 const scrollHeightBeforeLoad = ref(0)
-const prevScrollTop = ref(0)
 const itemHeight = 80
 const scrollToBottomOnNextTick = ref(false);
 
@@ -48,18 +47,23 @@ const loadMoreMessages = async () => {
     scrollHeightBeforeLoad.value = scrollContainer.value.scrollHeight
 
     try {
-        emit('load-more', page.value)
-        page.value++
+      emit('load-more', page.value)
+      page.value++
+      await nextTick()
+      restoreScrollPosition()
     } finally {
-        loading.value = false
-        restoreScrollPosition()
+      loading.value = false
     }
 }
 
 const restoreScrollPosition = () => {
-    if (!scrollContainer.value) return
-    const newScrollHeight = scrollContainer.value.scrollHeight
-    scrollContainer.value.scrollTop = newScrollHeight - scrollHeightBeforeLoad.value
+    const container = scrollContainer.value
+    if (!container) return
+
+    const newScrollHeight = container.scrollHeight
+    const diff = newScrollHeight - scrollHeightBeforeLoad.value
+
+    container.scrollTop = container.scrollTop + diff
 }
 
 const handleScroll = (event: Event) => {
@@ -107,6 +111,7 @@ watch(() => props.items.length, async () => {
     height: 100vh;
     overflow-y: auto;
     position: relative;
+    scroll-behavior: smooth;
 }
 
 .scroll-padder {
@@ -129,4 +134,4 @@ watch(() => props.items.length, async () => {
     box-sizing: border-box;
     min-height: v-bind(itemHeight + 'px');
 }
-</style>
\ No newline at end of file
+</style>
diff --git a/src/components/ChatView.vue b/src/components/ChatView.vue
index a81728d..710cc08 100644
--- a/src/components/ChatView.vue
+++ b/src/components/ChatView.vue
@@ -1,23 +1,35 @@
 <template>
-    <div ref="scroller" class="chat-scroll messages">
-        <div v-for="(message) in messages" :key="message.MessageId" class="chat-message">
-            <MessageItem :message="message" :get-msg-by-id="getMessageById" @dblclick="() => emit('select-reply', message)" />
-        </div>
+  <div ref="scroller" class="chat-scroll messages" :style="{'--chat-width': chatWidth + 'px'}">
+      <button
+          v-if="isScrolledUp"
+          @click="scrollToBottom"
+          class="scroll-to-bottom-btn"
+      >
+          <CircleArrowDown class="arrow-icon" />
+          <div v-if="newMessagesCount > 0" class="new-messages-count">
+              {{ newMessagesCount > 99 ? '99+' : newMessagesCount }}
+          </div>
+      </button>
+
+      <div v-for="(message) in messages" :key="message.MessageId" class="chat-message">
+          <MessageItem :message="message" :get-msg-by-id="getMessageById" @dblclick="() => emit('select-reply', message)" />
+      </div>
         <Separator v-if="hasEnded" orientation="horizontal"> </Separator>
         <div v-if="hasEnded" style="text-align: center;"> END </div>
-
     </div>
 </template>
 
 <script setup lang="ts">
-import { ref, onMounted, useTemplateRef, onUnmounted } from 'vue'
+import { ref, onMounted, useTemplateRef, onUnmounted, nextTick, watch } from 'vue'
 import { useInfiniteScroll } from '@vueuse/core'
+import { CircleArrowDown } from 'lucide-vue-next';
 import MessageItem from '@/components/MessageItem.vue'
 import { useApi } from '@/store/apiStore'
-import { logger } from '@/lib/logger';
 import { Separator } from '@/components/ui/separator'
 import { usePoolStore } from '@/store/poolStore';
 import { Subscription } from 'rxjs';
+import { useMe } from "@/store/meStore.ts";
+
 const api = useApi();
 const pool = usePoolStore();
 const props = defineProps<{
@@ -25,80 +37,206 @@ const props = defineProps<{
 }>()
 
 const scroller = useTemplateRef<HTMLElement>("scroller");
-
 const messages = ref([] as IArgonMessageDto[]);
-
 const hasEnded = ref(false);
-
 const subs = ref(null as null | Subscription);
+const currentSizeMsgs = ref(0);
+const isScrolledUp = ref(false);
+const newMessagesCount = ref(0);
+const chatWidth = ref(0);
+const me = useMe();
 
 const getMessageById = (messageId: number): IArgonMessageDto => {
-    return messages.value.filter(x => x.MessageId == messageId).at(0)!;
+    return messages.value.find(x => x.MessageId == messageId)!;
 }
+
 const emit = defineEmits<{
     (e: 'select-reply', message: IArgonMessageDto): void
 }>();
 
-useInfiniteScroll(scroller, async () => {
-    var result = await api.serverInteraction.GetMessages(props.channelId, 10, currentSizeMsgs.value);
-    if (result.length === 0) {
-        hasEnded.value = true;
+const scrollToBottom = () => {
+    if (!scroller.value) return;
+
+    const { scrollHeight, clientHeight } = scroller.value;
+    scroller.value.scrollTop = scrollHeight - clientHeight;
+
+    nextTick(() => {
+      checkScrollPosition();
+    });
+};
+
+const checkScrollPosition = () => {
+    if (!scroller.value) return;
+
+    if (scroller.value.scrollTop < -10) {
+        isScrolledUp.value = true;
+    } else {
+        newMessagesCount.value = 0;
+        isScrolledUp.value = false;
     }
-    const existingIds = new Set(messages.value.map(msg => msg.MessageId));
-    const uniqueNewMessages = result.filter(msg => !existingIds.has(msg.MessageId));
-    currentSizeMsgs.value += uniqueNewMessages.length;
-    messages.value.push(...uniqueNewMessages);
+};
+
+useInfiniteScroll(scroller, async () => {
+  if (hasEnded.value) return;
+
+  const result = await api.serverInteraction.GetMessages(props.channelId, 10, currentSizeMsgs.value);
+  if (result.length === 0) {
+    hasEnded.value = true;
+    return;
+  }
+
+  const existingIds = new Set(messages.value.map(msg => msg.MessageId));
+  const uniqueNewMessages = result.filter(msg => !existingIds.has(msg.MessageId));
+  currentSizeMsgs.value += uniqueNewMessages.length;
+  messages.value.push(...uniqueNewMessages);
 }, {
-    distance: 5,
-    direction: "top",
-    behavior: "smooth",
-    idle: 400,
-    interval: 400,
-    onError(error) {
-        logger.error("onError", error);
-    },
-    canLoadMore: (e) => {
-        return !hasEnded.value;
-    }
-})
+  distance: 100,
+  direction: "top",
+  canLoadMore: () => !hasEnded.value
+});
 
-const currentSizeMsgs = ref(0);
+const loadMessages = async (channelId: Guid) => {
+  messages.value = [];
+  hasEnded.value = false;
+  currentSizeMsgs.value = 0;
+  newMessagesCount.value = 0;
 
-onMounted(async () => {
-    messages.value = await api.serverInteraction.GetMessages(props.channelId, 10, 0);
-    currentSizeMsgs.value += messages.value.length;
-    subs.value = pool.onNewMessageReceived.subscribe((e) => {
-        if (props.channelId == e.ChannelId) {
-            messages.value.unshift(e);
+  messages.value = await api.serverInteraction.GetMessages(channelId, 10, 0);
+  currentSizeMsgs.value = messages.value.length;
+
+  nextTick(() => {
+    if (scroller.value) {
+      scrollToBottom();
+      checkScrollPosition();
+      isScrolledUp.value = false;
+    }
+  });
+};
+
+watch(() => props.channelId, async (newChannelId) => {
+  subs.value?.unsubscribe();
+
+  await loadMessages(newChannelId);
+
+  subs.value = pool.onNewMessageReceived.subscribe((e) => {
+    if (newChannelId === e.ChannelId) {
+      messages.value.unshift(e);
+      nextTick(checkScrollPosition);
+
+      if (e.Sender === me.me?.Id) {
+        setTimeout(scrollToBottom, 50);
+      } else {
+        if (isScrolledUp.value) {
+          newMessagesCount.value++;
+        } else {
+          setTimeout(scrollToBottom, 50);
         }
-    });
+      }
+    }
+  });
+}, { immediate: true });
+
+onMounted(() => {
+  if (scroller.value) {
+    scroller.value.addEventListener('scroll', checkScrollPosition);
+  }
+
+  nextTick(() => {
+    if (scroller.value) {
+      chatWidth.value = scroller.value.offsetWidth;
+    }
+  });
+
+  window.addEventListener('resize', updateChatWidth);
 });
 
-onUnmounted(() => {
-    subs.value?.unsubscribe();
-})
+const updateChatWidth = () => {
+  if (scroller.value) {
+    chatWidth.value = scroller.value.offsetWidth;
+  }
+};
 
+onUnmounted(() => {
+  subs.value?.unsubscribe();
+  if (scroller.value) {
+    scroller.value.removeEventListener('scroll', checkScrollPosition);
+  }
+  window.removeEventListener('resize', updateChatWidth);
+});
 </script>
 
 <style scoped>
 .chat-scroll {
-    height: 100%;
-    overflow-y: auto;
-    display: flex;
-    flex-direction: column-reverse;
+  height: 100%;
+  overflow-y: auto;
+  display: flex;
+  flex-direction: column-reverse;
+  position: relative;
+  padding: 8px;
+  gap: 8px;
 }
 
 .chat-message {
-    padding: 8px;
-    word-wrap: break-word;
+  padding: 8px;
+  word-wrap: break-word;
 }
 
 .messages::-webkit-scrollbar {
-    width: 6px;
+  width: 6px;
 }
 
 .messages::-webkit-scrollbar-thumb {
-    background-color: rgba(255, 255, 255, 0.2);
-    border-radius: 3px;
+  background-color: rgba(255, 255, 255, 0.2);
+  border-radius: 3px;
+}
+
+.scroll-to-bottom-btn {
+  position: fixed;
+  right: calc(50% - var(--chat-width) / 2 + 20px);
+  width: 40px;
+  height: 40px;
+  background-color: #222;
+  border: none;
+  border-radius: 50%;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
+  transition: all 0.2s ease;
+  z-index: 100;
+}
+
+.scroll-to-bottom-btn:hover {
+  background-color: rgba(100, 100, 100, 0.8);
+  transform: scale(1.1);
+}
+
+.scroll-to-bottom-btn:active {
+  transform: scale(0.95);
+}
+
+.arrow-icon {
+  color: white;
+  width: 20px;
+  height: 20px;
+}
+
+.new-messages-count {
+  position: absolute;
+  top: -6px;
+  right: -6px;
+  background-color: hsl(0, 72%, 50%);
+  color: white;
+  border-radius: 10px;
+  min-width: 18px;
+  height: 18px;
+  font-size: 10px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 0 4px;
+  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
+  font-weight: bold;
 }
-</style>
\ No newline at end of file
+</style>
diff --git a/src/components/MessageItem.vue b/src/components/MessageItem.vue
index 8fa7c91..744665c 100644
--- a/src/components/MessageItem.vue
+++ b/src/components/MessageItem.vue
@@ -24,10 +24,9 @@
 
             <div class="bubble flex" style="flex-flow: column;" v-if="!isSingleEmojiMessage" :style="{
                 backgroundPositionY: backgroundOffset + 'px',
-                backgroundColor: bubbleColor
             }" ref="bubble">
                 <div v-if="replyMessage" style="display: inline-table;" :class="cn(
-                    'rainbow-reply-preview inline-table',
+                    'reply-preview inline-table',
                     'group relative inline-flex h-11 items-center justify-center rounded-xl border-0 bg-[length:200%] px-8 py-2 font-medium text-primary-foreground transition-colors [background-clip:padding-box,border-box,border-box] [background-origin:border-box] [border:calc(0.08*1rem)_solid_transparent] focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50',
 
                     'bg-[linear-gradient(#121213,#121213),linear-gradient(#121213_50%,rgba(18,18,19,0.6)_80%,rgba(18,18,19,0)),linear-gradient(90deg,var(--color-1),var(--color-5),var(--color-3),var(--color-4),var(--color-2))]',
@@ -40,7 +39,7 @@
             </div>
             <div v-if="isSingleEmojiMessage" class="flex" style="font-size: xxx-large; flex-flow: column;">
                 <div v-if="replyMessage" style="display: inline-table;" :class="cn(
-                    'rainbow-reply-preview inline-table',
+                    'reply-preview inline-table',
                     'group relative inline-flex h-11 items-center justify-center rounded-xl border-0 bg-[length:200%] px-8 py-2 font-medium text-primary-foreground transition-colors [background-clip:padding-box,border-box,border-box] [background-origin:border-box] [border:calc(0.08*1rem)_solid_transparent] focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50',
 
                     'bg-[linear-gradient(#121213,#121213),linear-gradient(#121213_50%,rgba(18,18,19,0.6)_80%,rgba(18,18,19,0)),linear-gradient(90deg,var(--color-1),var(--color-5),var(--color-3),var(--color-4),var(--color-2))]',
@@ -83,7 +82,7 @@ const me = useMe();
 
 const isSingleEmojiMessage = isUpEmojisOnly(props.message);
 
-const isIncoming = true;
+const isIncoming = computed(() => props.message.Sender !== me.me?.Id);
 const isMe = props.message.Sender == me.me?.Id;
 
 const loadUser = async () => {
@@ -127,15 +126,9 @@ const formattedTime = computed(() => {
 const formattedFullTime = useDateFormat(new Date(props.message.TimeSent * 1000), 'YYYY-MM-DD HH:mm:ss')
 
 function getColorByUserId(userId: string): string {
-    if (isMe) return "#446df1";
     return "#303030";
 }
 
-const bubbleColor = computed(() => {
-    if (!props.message.Sender) return '#e0e0e0'
-    return isIncoming ? getColorByUserId(props.message.Sender) : ''
-});
-
 function isUpEmojisOnly(message: IArgonMessageDto): boolean {
     const text = message.Text.trim();
     const regex = emojiRegex();
@@ -153,17 +146,6 @@ function isUpEmojisOnly(message: IArgonMessageDto): boolean {
     gap: 8px;
 }
 
-
-.incoming {
-    flex-direction: row;
-    justify-content: flex-start;
-}
-
-.outgoing {
-    flex-direction: row-reverse;
-    justify-content: flex-end;
-}
-
 .avatar {
     width: 36px;
     height: 36px;
@@ -196,48 +178,36 @@ function isUpEmojisOnly(message: IArgonMessageDto): boolean {
     margin-bottom: 2px;
 }
 
+.incoming {}
+
+.outgoing {}
+
 .bubble {
-    padding: 10px 14px;
-    border-radius: 18px;
-    background-size: 100% 800px;
-    transition: background-position 0.1s;
-    color: white;
+    padding: 10px;
+    border-radius: 4px 18px 18px 18px;
+    color: #e0e0e0;
     font-size: 14px;
     line-height: 1.4;
     word-break: break-word;
     white-space: pre-wrap;
-    background-color: #0088cc;
-}
-
-.incoming .bubble {
-    color: #fff;
-    background-color: #666161;
-    border-top-left-radius: 4px;
-}
-
-.outgoing .bubble {
-    border-top-right-radius: 4px;
+    background-color: #222;
 }
 
-.rainbow-reply-preview {
+.reply-preview {
     padding: 6px 10px;
     border-radius: 6px;
     font-size: 13px;
     margin-bottom: 6px;
-    color: #ccc;
+    color: #d0d0d0;
+    background-color: #181818;
     white-space: nowrap;
     overflow: hidden;
     text-overflow: ellipsis;
-    --color-1: hsl(0 100% 63%);
-    --color-2: hsl(270 100% 63%);
-    --color-3: hsl(210 100% 63%);
-    --color-4: hsl(195 100% 63%);
-    --color-5: hsl(90 100% 63%);
 }
 
 .reply-username {
     font-weight: 800;
     margin-bottom: 2px;
-    color: #d39b18;
+    color: #b58f2d;
 }
 </style>
diff --git a/src/components/chats/EnterText.vue b/src/components/chats/EnterText.vue
index 9e80bd7..68a3191 100644
--- a/src/components/chats/EnterText.vue
+++ b/src/components/chats/EnterText.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref } from 'vue';
+import { onMounted, onUnmounted, ref } from 'vue';
 import { Button } from '@/components/ui/button';
 import { Popover, PopoverContent, PopoverTrigger } from '@/components/ui/popover';
 import EmojiPicker, { EmojiExt } from 'vue3-emoji-picker';
@@ -9,7 +9,8 @@ import DOMPurify from 'dompurify';
 import { parseHtmlAsFormattedText, renderTextWithEntities } from "@argon-chat/infer"
 import {
     SendHorizonalIcon,
-    SmileIcon
+    SmileIcon,
+    X,
 } from 'lucide-vue-next';
 import { useApi } from '@/store/apiStore';
 import { usePoolStore } from '@/store/poolStore';
@@ -34,6 +35,20 @@ const emit = defineEmits<{
     (e: 'send', html: string, rawText: string): void;
 }>();
 
+const handleKeyDown = (e: KeyboardEvent) => {
+  if (e.key === 'Escape' && props.replyTo) {
+    emit('clear-reply');
+  }
+};
+
+onMounted(() => {
+  window.addEventListener('keydown', handleKeyDown);
+});
+
+onUnmounted(() => {
+  window.removeEventListener('keydown', handleKeyDown);
+});
+
 const onEmojiClick = (emoji: EmojiExt) => {
     logger.log(emoji);
     message.value += emoji.i;
@@ -82,6 +97,10 @@ const handleSend = async () => {
         shouldRenderAsHtml: true
     }));*/
     message.value = '';
+
+    if (props.replyTo) {
+        emit('clear-reply');
+    }
 };
 
 
@@ -89,23 +108,16 @@ const handleSend = async () => {
 
 <template>
     <div style="display: block;">
-        <div v-if="replyTo" :class="
-      cn(
-        'rainbow-reply-banner',
-        'group relative inline-flex h-11 items-center justify-center rounded-xl border-0 bg-[length:200%] px-8 py-2 font-medium text-primary-foreground transition-colors [background-clip:padding-box,border-box,border-box] [background-origin:border-box] [border:calc(0.08*1rem)_solid_transparent] focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50',
-        
-        'bg-[linear-gradient(#121213,#121213),linear-gradient(#121213_50%,rgba(18,18,19,0.6)_80%,rgba(18,18,19,0)),linear-gradient(90deg,var(--color-1),var(--color-5),var(--color-3),var(--color-4),var(--color-2))]',
-       )
-    ">
-            <div class="reply-info" style="color: white;">
+        <div v-if="replyTo" class="reply-banner">
+            <div class="reply-info">
                 <strong>Replying to:</strong> {{ replyTo.Text }}
             </div>
-            <button @click="$emit('clear-reply')" class="clear-reply">✖</button>
+            <X class="text-red-600" @click="$emit('clear-reply')"></X>
         </div>
         <div class="flex items-end gap-2 p-2 border rounded-lg bg-background">
 
             <textarea ref="textareaRef" @input="adjustHeight" v-model="message" placeholder="Enter text..."
-                @keydown.enter.exact.prevent="message.trim() && handleSend"
+                @keydown.enter.exact.prevent="message.trim() && handleSend()"
                 class="flex-1 min-h-[40px] max-h-[200px] px-3 py-2 text-sm bg-transparent outline-none resize-none"
                 rows="1" />
             <Popover>
@@ -132,36 +144,46 @@ const handleSend = async () => {
 </template>
 
 <style lang="css" scoped>
-.reply-banner {
-    background-color: rgba(255, 255, 255, 0.05);
-    border-left: 3px solid #888;
+.reply-preview {
     padding: 6px 10px;
-    margin-bottom: 6px;
     border-radius: 6px;
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
+    font-size: 13px;
+    margin-bottom: 6px;
+    color: #d0d0d0;
+    background-color: #1e1e1e;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    border: 1px solid #2a2a2a;
 }
 
-.rainbow-reply-banner {
+.reply-banner {
+    background-color: #222;
+    border-left: 3px solid #444;
     padding: 6px 10px;
     margin-bottom: 6px;
     border-radius: 6px;
     display: flex;
     justify-content: space-between;
     align-items: center;
-    --color-1: hsl(0 100% 63%);
-    --color-2: hsl(270 100% 63%);
-    --color-3: hsl(210 100% 63%);
-    --color-4: hsl(195 100% 63%);
-    --color-5: hsl(90 100% 63%);
 }
 
-
 .clear-reply {
     background: transparent;
     border: none;
-    color: #ccc;
+    color: #999;
     cursor: pointer;
+    margin-left: 8px;
+    white-space: nowrap;
+    flex-shrink: 0;
+}
+
+.reply-info {
+    color: #d0d0d0;
+    font-size: 13px;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    flex-grow: 1;
 }
-</style>
\ No newline at end of file
+</style>


Reviews:
user: login: coderabbitai[bot]
body: **Actionable comments posted: 3**

<details>
<summary>🧹 Nitpick comments (6)</summary><blockquote>

<details>
<summary>src/components/ChatHistory.vue (2)</summary><blockquote>

`50-56`: **Possible scroll-jump: `restoreScrollPosition()` is invoked before new messages are actually rendered**  

`emit('load-more')` is likely asynchronous (it usually triggers a network call in the parent).  
Because `restoreScrollPosition()` is executed immediately after a single `nextTick()`, the DOM may not yet contain the newly-loaded DOM nodes; `diff` can therefore be zero, causing the viewport to jump once the parent finally updates.

```diff
-  emit('load-more', page.value)
-  page.value++
-  await nextTick()
-  restoreScrollPosition()
+  emit('load-more', page.value)
+  page.value++
+  // Wait until the parent updates `props.items`
+  await nextTick()           // child's own DOM update
+  await nextTick()           // first parent re-render
+  await nextTick()           // (optional) safety for async fetch
+  restoreScrollPosition()
```

Please ensure the scroll correction happens *after* the parent finishes injecting the new messages (watching `props.items.length` is another option).

---

`60-79`: **Double-smoothing & missing animation cleanup**

1. You now rely on both the CSS rule `scroll-behavior: smooth;` (line 126) *and* a manual `requestAnimationFrame` tween. These effects may fight each other on some browsers, producing stutter. Pick one technique (CSS is usually enough).

2. `requestAnimationFrame` isn’t cancelled on component unmount, so an ongoing animation can attempt to touch a destroyed DOM node.

```diff
const animate = (time: number) => {
  …
}
- requestAnimationFrame(animate)
+ const raf = requestAnimationFrame(animate)
+
+ onUnmounted(() => cancelAnimationFrame(raf))
```

Also consider replacing the JS tween with a single `container.scrollTo({ top: end, behavior: 'instant' })` when CSS smoothing is enabled.

</blockquote></details>
<details>
<summary>src/components/chats/EnterText.vue (3)</summary><blockquote>

`38-50`: **Global `keydown` listener can duplicate & is never passive**

If several `EnterText` components mount (e.g., multiple chat tabs), each registers a global `keydown`, multiplying the handlers.  
Consider:

```diff
onMounted(() => {
-  window.addEventListener('keydown', handleKeyDown);
+  window.addEventListener('keydown', handleKeyDown, { once: false, passive: true, capture: false });
});
```

…and guard with `if (!props.replyTo) return;` inside the handler to avoid unnecessary work.

Alternatively, use `useEventListener` from VueUse which auto-cleans duplicates.

---

`100-104`: **Textarea height is not reset after send**

After `message.value = ''` the textarea keeps its previous height until the user types again, leaving an empty tall box.

```diff
message.value = '';
if (textareaRef.value) {
  textareaRef.value.style.height = 'auto';
}
```

Calling `adjustHeight()` (or resetting height) right here restores the compact layout.

---

`113-116`: **Add accessible label to the clear-reply icon**

The lone `<X>` icon has no `aria-label` / `title`, so screen-reader users don’t know its purpose.

```diff
- <X class="text-red-600" @click="$emit('clear-reply')"></X>
+ <X class="text-red-600" aria-label="Cancel reply" title="Cancel reply"
+    @click="$emit('clear-reply')" />
```

</blockquote></details>
<details>
<summary>src/components/MessageItem.vue (1)</summary><blockquote>

`186-194`: **Minor contrast issue with new bubble colour**

`#222` on `#e0e0e0` is acceptable but barely meets WCAG AA for small text (contrast ≈ 5.9 : 1).  
If accessibility is a priority, consider lightening the foreground (`#f1f1f1`) or darkening the bubble (`#1a1a1a`).

</blockquote></details>

</blockquote></details>

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<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between 0862ba1c6a4b1905dfd50075b0c400f0088028b8 and ec5d1d1546fcca71b4f12fa4bd52aad181b6be81.

</details>

<details>
<summary>📒 Files selected for processing (4)</summary>

* `src/components/ChatHistory.vue` (2 hunks)
* `src/components/ChatView.vue` (1 hunks)
* `src/components/MessageItem.vue` (4 hunks)
* `src/components/chats/EnterText.vue` (5 hunks)

</details>

<details>
<summary>🔇 Additional comments (1)</summary><blockquote>

<details>
<summary>src/components/ChatView.vue (1)</summary>

`79-96`: **Message order may flip after infinite-scroll load**

`messages.value.push(...uniqueNewMessages)` appends to the end, but with `column-reverse` the visual order is reversed, so older history appears *below* the viewport.  
If you intend classic “prepend older messages at top” semantics, use `unshift`:

```diff
- messages.value.push(...uniqueNewMessages);
+ messages.value.unshift(...uniqueNewMessages);
```

Please verify the visual order and scroll restoration once this is swapped.

</details>

</blockquote></details>

</details>

<!-- This is an auto-generated comment by CodeRabbit for review status -->
state: COMMENTED
author_association: NONE
submitted_at: 2025-05-01T23:25:27Z

Review comments:
diff_hunk: @@ -196,48 +178,36 @@ function isUpEmojisOnly(message: IArgonMessageDto): boolean {
     margin-bottom: 2px;
 }
 
+.incoming {}
+
+.outgoing {}
+
path: src/components/MessageItem.vue
user: login: coderabbitai[bot]
body: _⚠️ Potential issue_

**`.incoming` / `.outgoing` classes are now empty – alignment is lost**

These placeholders no longer apply any layout, so all bubbles align identically. If the intent is still left/right separation, add back the flex styles:

```diff
.incoming {
-}
+  flex-direction: row;
+  justify-content: flex-start;
+}

.outgoing {
-}
+  flex-direction: row-reverse;
+  justify-content: flex-end;
+}
```

Without this, the UI regresses visually.  



<!-- suggestion_start -->

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> ‼️ **IMPORTANT**
> Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

`````suggestion
.incoming {
  flex-direction: row;
  justify-content: flex-start;
}

.outgoing {
  flex-direction: row-reverse;
  justify-content: flex-end;
}
`````

</details>

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<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-01T23:25:26Z
author_association: NONE
diff_hunk: @@ -1,104 +1,224 @@
 <template>
-    <div ref="scroller" class="chat-scroll messages">
-        <div v-for="(message) in messages" :key="message.MessageId" class="chat-message">
-            <MessageItem :message="message" :get-msg-by-id="getMessageById" @dblclick="() => emit('select-reply', message)" />
-        </div>
+  <div ref="scroller" class="chat-scroll messages" :style="{'--chat-width': chatWidth + 'px'}">
+      <button
+          v-if="isScrolledUp"
+          @click="scrollToBottom"
+          class="scroll-to-bottom-btn"
+      >
+          <CircleArrowDown class="arrow-icon" />
+          <div v-if="newMessagesCount > 0" class="new-messages-count">
+              {{ newMessagesCount > 99 ? '99+' : newMessagesCount }}
+          </div>
+      </button>
+
+      <div v-for="(message) in messages" :key="message.MessageId" class="chat-message">
+          <MessageItem :message="message" :get-msg-by-id="getMessageById" @dblclick="() => emit('select-reply', message)" />
+      </div>
         <Separator v-if="hasEnded" orientation="horizontal"> </Separator>
         <div v-if="hasEnded" style="text-align: center;"> END </div>
-
     </div>
 </template>
 
 <script setup lang="ts">
-import { ref, onMounted, useTemplateRef, onUnmounted } from 'vue'
+import { ref, onMounted, useTemplateRef, onUnmounted, nextTick } from 'vue'
 import { useInfiniteScroll } from '@vueuse/core'
+import { CircleArrowDown } from 'lucide-vue-next';
 import MessageItem from '@/components/MessageItem.vue'
 import { useApi } from '@/store/apiStore'
-import { logger } from '@/lib/logger';
 import { Separator } from '@/components/ui/separator'
 import { usePoolStore } from '@/store/poolStore';
 import { Subscription } from 'rxjs';
+import { useMe } from "@/store/meStore.ts";
+
 const api = useApi();
 const pool = usePoolStore();
 const props = defineProps<{
     channelId: Guid
 }>()
 
 const scroller = useTemplateRef<HTMLElement>("scroller");
-
 const messages = ref([] as IArgonMessageDto[]);
-
 const hasEnded = ref(false);
-
 const subs = ref(null as null | Subscription);
+const currentSizeMsgs = ref(0);
+const isScrolledUp = ref(false);
+const newMessagesCount = ref(0);
+const chatWidth = ref(0);
+const me = useMe();
 
 const getMessageById = (messageId: number): IArgonMessageDto => {
-    return messages.value.filter(x => x.MessageId == messageId).at(0)!;
+    return messages.value.find(x => x.MessageId == messageId)!;
 }
+
 const emit = defineEmits<{
     (e: 'select-reply', message: IArgonMessageDto): void
 }>();
 
-useInfiniteScroll(scroller, async () => {
-    var result = await api.serverInteraction.GetMessages(props.channelId, 10, currentSizeMsgs.value);
-    if (result.length === 0) {
-        hasEnded.value = true;
-    }
-    const existingIds = new Set(messages.value.map(msg => msg.MessageId));
-    const uniqueNewMessages = result.filter(msg => !existingIds.has(msg.MessageId));
-    currentSizeMsgs.value += uniqueNewMessages.length;
-    messages.value.push(...uniqueNewMessages);
-}, {
-    distance: 5,
-    direction: "top",
-    behavior: "smooth",
-    idle: 400,
-    interval: 400,
-    onError(error) {
-        logger.error("onError", error);
-    },
-    canLoadMore: (e) => {
-        return !hasEnded.value;
+const scrollToBottom = () => {
+    if (!scroller.value) return;
+
+    const { scrollHeight, clientHeight } = scroller.value;
+    scroller.value.scrollTop = scrollHeight - clientHeight;
+
+    nextTick(() => {
+      checkScrollPosition();
+    });
+};
+
+const checkScrollPosition = () => {
+    if (!scroller.value) return;
+
+    if (scroller.value.scrollTop < -10) {
+        isScrolledUp.value = true;
+    } else {
+        newMessagesCount.value = 0;
+        isScrolledUp.value = false;
     }
-})
+};
path: src/components/ChatView.vue
user: login: coderabbitai[bot]
body: _⚠️ Potential issue_

**`checkScrollPosition()` uses impossible negative `scrollTop`**

`scrollTop` never becomes `< 0` (except during inertial overscroll on some mobile browsers).  
Use a positive threshold instead; for reversed flex layouts you can rely on `scrollTop > 50`:

```diff
- if (scroller.value.scrollTop < -10) {
+ if (scroller.value.scrollTop > 50) {
```

This will reliably detect when the user is away from the latest messages.  



<!-- suggestion_start -->

<details>
<summary>📝 Committable suggestion</summary>

> ‼️ **IMPORTANT**
> Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

`````suggestion
const checkScrollPosition = () => {
    if (!scroller.value) return;

    if (scroller.value.scrollTop > 50) {
        isScrolledUp.value = true;
    } else {
        newMessagesCount.value = 0;
        isScrolledUp.value = false;
    }
};
`````

</details>

<!-- suggestion_end -->

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-01T23:25:26Z
author_association: NONE
diff_hunk: @@ -1,104 +1,224 @@
 <template>
-    <div ref="scroller" class="chat-scroll messages">
-        <div v-for="(message) in messages" :key="message.MessageId" class="chat-message">
-            <MessageItem :message="message" :get-msg-by-id="getMessageById" @dblclick="() => emit('select-reply', message)" />
-        </div>
+  <div ref="scroller" class="chat-scroll messages" :style="{'--chat-width': chatWidth + 'px'}">
+      <button
+          v-if="isScrolledUp"
+          @click="scrollToBottom"
+          class="scroll-to-bottom-btn"
+      >
+          <CircleArrowDown class="arrow-icon" />
+          <div v-if="newMessagesCount > 0" class="new-messages-count">
+              {{ newMessagesCount > 99 ? '99+' : newMessagesCount }}
+          </div>
+      </button>
+
+      <div v-for="(message) in messages" :key="message.MessageId" class="chat-message">
+          <MessageItem :message="message" :get-msg-by-id="getMessageById" @dblclick="() => emit('select-reply', message)" />
+      </div>
         <Separator v-if="hasEnded" orientation="horizontal"> </Separator>
         <div v-if="hasEnded" style="text-align: center;"> END </div>
-
     </div>
 </template>
 
 <script setup lang="ts">
-import { ref, onMounted, useTemplateRef, onUnmounted } from 'vue'
+import { ref, onMounted, useTemplateRef, onUnmounted, nextTick } from 'vue'
 import { useInfiniteScroll } from '@vueuse/core'
+import { CircleArrowDown } from 'lucide-vue-next';
 import MessageItem from '@/components/MessageItem.vue'
 import { useApi } from '@/store/apiStore'
-import { logger } from '@/lib/logger';
 import { Separator } from '@/components/ui/separator'
 import { usePoolStore } from '@/store/poolStore';
 import { Subscription } from 'rxjs';
+import { useMe } from "@/store/meStore.ts";
+
 const api = useApi();
 const pool = usePoolStore();
 const props = defineProps<{
     channelId: Guid
 }>()
 
 const scroller = useTemplateRef<HTMLElement>("scroller");
-
 const messages = ref([] as IArgonMessageDto[]);
-
 const hasEnded = ref(false);
-
 const subs = ref(null as null | Subscription);
+const currentSizeMsgs = ref(0);
+const isScrolledUp = ref(false);
+const newMessagesCount = ref(0);
+const chatWidth = ref(0);
+const me = useMe();
 
 const getMessageById = (messageId: number): IArgonMessageDto => {
-    return messages.value.filter(x => x.MessageId == messageId).at(0)!;
+    return messages.value.find(x => x.MessageId == messageId)!;
 }
+
 const emit = defineEmits<{
     (e: 'select-reply', message: IArgonMessageDto): void
 }>();
 
-useInfiniteScroll(scroller, async () => {
-    var result = await api.serverInteraction.GetMessages(props.channelId, 10, currentSizeMsgs.value);
-    if (result.length === 0) {
-        hasEnded.value = true;
-    }
-    const existingIds = new Set(messages.value.map(msg => msg.MessageId));
-    const uniqueNewMessages = result.filter(msg => !existingIds.has(msg.MessageId));
-    currentSizeMsgs.value += uniqueNewMessages.length;
-    messages.value.push(...uniqueNewMessages);
-}, {
-    distance: 5,
-    direction: "top",
-    behavior: "smooth",
-    idle: 400,
-    interval: 400,
-    onError(error) {
-        logger.error("onError", error);
-    },
-    canLoadMore: (e) => {
-        return !hasEnded.value;
+const scrollToBottom = () => {
+    if (!scroller.value) return;
+
+    const { scrollHeight, clientHeight } = scroller.value;
+    scroller.value.scrollTop = scrollHeight - clientHeight;
+
+    nextTick(() => {
+      checkScrollPosition();
+    });
+};
path: src/components/ChatView.vue
user: login: coderabbitai[bot]
body: _⚠️ Potential issue_

**`scrollToBottom()` computes the wrong offset with `flex-direction: column-reverse`**

Because the container is reversed, the visual “bottom” is **`scrollTop = 0`**.  
`scrollHeight - clientHeight` scrolls to the *top* instead, so the button sometimes appears stuck.

```diff
- scroller.value.scrollTop = scrollHeight - clientHeight;
+ scroller.value.scrollTop = 0;
```

Test on Firefox/Chrome to ensure the button hides correctly afterwards.  



<!-- suggestion_start -->

<details>
<summary>📝 Committable suggestion</summary>

> ‼️ **IMPORTANT**
> Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

`````suggestion
    if (!scroller.value) return;

    const { scrollHeight, clientHeight } = scroller.value;
    scroller.value.scrollTop = 0;

    nextTick(() => {
      checkScrollPosition();
    });
};
`````

</details>

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<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-01T23:25:27Z
author_association: NONE

PR comments:
user: login: coderabbitai[bot]
created_at: 2025-05-01T23:22:52Z
body: <!-- This is an auto-generated comment: summarize by coderabbit.ai -->
<!-- walkthrough_start -->

## Walkthrough

This update introduces several UI and interaction improvements to the chat interface. The chat history component now animates scroll restoration and uses smooth scrolling. The chat view adds a scroll-to-bottom button that appears when the user is not at the bottom, displaying a count of new messages received while scrolled up. Infinite scroll behavior and scroll event handling are refined. Message bubbles receive simplified, uniform styling, removing dynamic color logic. The message input area now supports clearing replies via the Escape key and uses an icon for the clear button, with updated styling for reply banners and previews.

## Changes

| File(s)                             | Change Summary                                                                                                                             |
|-----------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------|
| `src/components/ChatHistory.vue`  | Modified `loadMoreMessages` to await next Vue tick and animate scroll restoration after loading more messages; updated `restoreScrollPosition` to adjust scrollTop by scroll height difference; added `scroll-behavior: smooth` to `.chat-scroller` CSS. |
| `src/components/ChatView.vue`     | Added scroll-to-bottom button with new message count; tracks scroll position and chat container width; increased infinite scroll threshold; refactored initial message loading and subscription logic; improved scroll event handling and cleanup; added CSS for new UI elements including button, arrow icon, and message count badge. |
| `src/components/MessageItem.vue`  | Changed `isIncoming` from static to computed property; removed `bubbleColor` computed property and dynamic bubble color logic; simplified bubble styling with uniform dark gray background and asymmetric border radius; replaced `.incoming` and `.outgoing` CSS classes with placeholders; renamed `.rainbow-reply-preview` to `.reply-preview` with updated styling; removed inline background color binding.                 |
| `src/components/chats/EnterText.vue` | Added global Escape keydown handler to clear reply when Escape pressed; replaced clear reply button text with red `X` icon component; updated `handleSend` to emit `clear-reply` event after sending reply; reorganized and renamed CSS classes for reply banner and preview; added lifecycle hooks to register/unregister keydown listener. |

## Sequence Diagram(s)

```mermaid
sequenceDiagram
    participant User
    participant ChatView
    participant ChatHistory
    participant MessageItem
    participant EnterText

    User->>EnterText: Type message / press Enter
    EnterText->>ChatView: Emit new message
    ChatView->>ChatHistory: Prepend message
    ChatHistory->>MessageItem: Render new message
    alt User scrolled up
        ChatView->>ChatView: Increment newMessagesCount
        ChatView->>User: Show scroll-to-bottom button with count
        User->>ChatView: Click scroll-to-bottom
        ChatView->>ChatView: Scroll to bottom, reset newMessagesCount
    else User at bottom
        ChatView->>ChatView: Auto-scroll to bottom
    end
    User->>EnterText: Press Escape
    EnterText->>ChatView: Emit clear-reply
```

## Possibly related PRs

- **argon-chat/client#3**: Modifies `getColorByUserId` and message bubble styling in `MessageItem.vue`, which directly relates to this PR's removal of dynamic bubble color logic and simplification of message bubble styles.

## Poem

> In the chat where messages flow,  
> A scroll-to-bottom button now will show!  
> Smooth bubbles, no more rainbow hue,  
> Replies clear with Escape—so easy to do.  
> New messages counted, banners restyled with cheer—  
> This bunny’s delighted: the chat’s crystal clear!  
> 🐇✨

<!-- walkthrough_end -->


---

<details>
<summary>📜 Recent review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro**

<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between 60cc2832cf4339de63bf69d35c179a8f2ab249cb and df3e9cc4160608a610311d86f8c198350aaf2694.

</details>

<details>
<summary>📒 Files selected for processing (2)</summary>

* `src/components/ChatHistory.vue` (3 hunks)
* `src/components/ChatView.vue` (1 hunks)

</details>

<details>
<summary>🚧 Files skipped from review as they are similar to previous changes (1)</summary>

* src/components/ChatHistory.vue

</details>

<details>
<summary>🔇 Additional comments (18)</summary><blockquote>

<details>
<summary>src/components/ChatView.vue (18)</summary>

`2-12`: **Scroll-to-bottom button implementation looks good**

The implementation of a scroll-to-bottom button with a notification counter is a great UX enhancement. The conditional rendering based on `isScrolledUp` state ensures the button only appears when needed.

---

`14-16`: **Clean message rendering logic**

The message rendering code is clean and organized. Good job using the `:get-msg-by-id` prop to pass the lookup function down to the `MessageItem` component.

---

`23-25`: **Import changes are appropriate**

The additional imports for `nextTick`, `watch`, and `CircleArrowDown` are necessary for the new functionality.

---

`31-31`: **Good addition of user identity check**

Adding the `useMe` import allows checking if messages are from the current user, which helps with scroll behavior decisions.

---

`43-47`: **State variables properly defined**

The new ref variables for tracking scroll position, new message count, and chat width are appropriately defined and scoped.

---

`50-50`: **Improved message lookup implementation**

Using `find` instead of filter+at(0) is more concise and has better performance. Good refactoring!

---

`79-96`: **Improved infinite scroll implementation**

The changes to the infinite scroll configuration are solid. Increasing the distance threshold to 100px provides a better buffer for loading older messages, and the unique message filtering prevents duplicates.

---

`98-114`: **Well-structured message loading function**

Extracting the message loading logic into a separate async function improves code organization. The function properly handles state resets and scroll position maintenance.

---

`116-137`: **Watch implementation ensures proper message handling**

The watch implementation for channel changes correctly manages subscriptions and message loading. The logic for handling new messages (whether to scroll or increment counter) based on message sender and current scroll position is well thought out.

---

`139-151`: **Proper event listener setup**

The scroll event listener and resize event handler are correctly set up on component mount. The chat width calculation ensures the scroll-to-bottom button is positioned accurately.

---

`153-157`: **Simple and effective width update function**

The `updateChatWidth` function is clean and focused on its single responsibility.

---

`159-165`: **Complete cleanup on component unmount**

All event listeners and subscriptions are properly cleaned up when the component is unmounted, which prevents memory leaks.

---

`169-177`: **Effective chat container styling**

The chat container styling with column-reverse layout is appropriate for a chat interface where newest messages appear at the bottom.

---

`179-182`: **Clean message styling**

The message styling is simple and allows for appropriate word wrapping.

---

`193-208`: **Well-designed scroll-to-bottom button**

The scroll-to-bottom button styling is clean and provides good visual feedback. The positioning using CSS variables is a smart approach to handle dynamic widths.

---

`210-217`: **Good hover and active states**

The hover and active states for the button provide appropriate visual feedback to users.

---

`219-223`: **Clean icon styling**

The arrow icon styling is simple and effective.

---

`225-241`: **Well-designed notification counter**

The notification counter styling is clean, accessible, and handles number overflow with "99+" for large numbers.

</details>

</blockquote></details>

</details>
<!-- internal state start -->


<!-- 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