added message draft persistence and send button

src/components/MessageInput.vue

@@ -1,10 +1,17 @@
 <template>
-  <textarea ref="textareaRef" v-model="content" @input="resize" @keydown="handleKeydown" rows="1"
+  <div class="container-div">
+    <textarea ref="textareaRef" v-model="content" @input="handleInput" @keydown="handleKeydown" rows="1"
       :placeholder="$t('chat-input-placeholder')"></textarea>
+
+    <button class="send-btn" @click="submit" :disabled="!content.trim()">
+      <i class="fas fa-paper-plane"></i>
+    </button>
+  </div>
 </template>
 
 <script setup lang="ts">
-import { ref, nextTick } from 'vue'
+import { ref, nextTick, onMounted } from 'vue'
+import { saveMessageDraft, getMessageDraft } from '../store'
 
 const content = ref('')
 const textareaRef = ref<HTMLTextAreaElement | null>(null)
@@ -17,10 +24,24 @@ defineExpose({
   }
 })
 
+onMounted(async () => {
+  const saved = await getMessageDraft()
+  if (saved) {
+    content.value = saved
+    resize()
+  }
+})
+
+function handleInput() {
+  resize()
+  saveMessageDraft(content.value)
+}
+
 function submit() {
   if (!content.value.trim()) return
   emit('send', content.value)
   content.value = ''
+  saveMessageDraft('')
   resize()
 }
 
@@ -43,6 +64,9 @@ function handleKeydown(e: KeyboardEvent) {
       textarea.selectionStart = textarea.selectionEnd = start + 1
     })
     resize()
+
+    saveMessageDraft(content.value)
+
     e.preventDefault()
   } else if (!e.shiftKey && !e.altKey && e.key === 'Enter') {
     submit()
@@ -52,6 +76,13 @@ function handleKeydown(e: KeyboardEvent) {
 </script>
 
 <style scoped>
+.container-div {
+  position: relative;
+  width: 100%;
+  display: flex;
+  align-items: flex-end;
+}
+
 textarea {
   width: 100%;
   resize: none;
@@ -64,5 +95,26 @@ textarea {
   border: none;
   color: inherit;
   outline: none;
+  flex: 1;
+}
+
+.send-btn {
+  margin-right: 0.8rem;
+  background: transparent;
+  border: none;
+  cursor: pointer;
+  color: var(--text);
+  padding: 0;
+  transition: color 0.2s;
+  font-size: 1.2rem;
+}
+
+.send-btn:hover:not(:disabled) {
+  color: var(--accent);
+}
+
+.send-btn:disabled {
+  cursor: not-allowed;
+  opacity: 0.5;
 }
 </style>

src/store.ts

@@ -223,3 +223,16 @@ export async function getCompactLayoutPreference(): Promise<boolean> {
   const s = await getStore();
   return (await s.get<boolean>('compact_layout')) ?? false;
 }
+
+// ==== Message draft ====
+
+export async function saveMessageDraft(text: string) {
+  const s = await getStore()
+  await s.set('message_draft', text)
+  await s.save()
+}
+
+export async function getMessageDraft(): Promise<string> {
+  const s = await getStore()
+  return (await s.get<string>('message_draft')) ?? ''
+}