チャンネルで入力中ユーザーを表示するように、Chat UIでタイムラインでは投稿フォームを上に表示するように

src/client/components/post-form.vue

@@ -70,6 +70,7 @@ import * as os from '@/os';
 import { selectFile } from '@/scripts/select-file';
 import { notePostInterruptors, postFormActions } from '@/store';
 import { isMobile } from '@/scripts/is-mobile';
+import { throttle } from 'throttle-debounce';
 
 export default defineComponent({
 	components: {
@@ -144,6 +145,11 @@ export default defineComponent({
 			quoteId: null,
 			recentHashtags: JSON.parse(localStorage.getItem('hashtags') || '[]'),
 			imeText: '',
+			typing: throttle(3000, () => {
+				if (this.channel) {
+					os.stream.send('typingOnChannel', { channel: this.channel.id });
+				}
+			}),
 			postFormActions,
 			faReply, faQuoteRight, faPaperPlane, faTimes, faUpload, faPollH, faGlobe, faHome, faUnlock, faEnvelope, faEyeSlash, faLaughSquint, faPlus, faPhotoVideo, faAt, faBiohazard, faPlug
 		};
@@ -434,10 +440,12 @@ export default defineComponent({
 		onKeydown(e: KeyboardEvent) {
 			if ((e.which === 10 || e.which === 13) && (e.ctrlKey || e.metaKey) && this.canPost) this.post();
 			if (e.which === 27) this.$emit('esc');
+			this.typing();
 		},
 
 		onCompositionUpdate(e: CompositionEvent) {
 			this.imeText = e.data;
+			this.typing();
 		},
 
 		onCompositionEnd(e: CompositionEvent) {