Collapse long notes (#8990)

* Revert "Revert option to collapse long notes (#8561)"

This reverts commit 71150f21cd and reinstates
the option to collapse long notes again after they were expanded.

* fix(client): wrongly collapsed posts

* fix: don't use ref

* tweak style

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

locales/ja-JP.yml

@@ -52,6 +52,7 @@ searchUser: "ユーザーを検索"
 reply: "返信"
 loadMore: "もっと見る"
 showMore: "もっと見る"
+showLess: "閉じる"
 youGotNewFollower: "フォローされました"
 receiveFollowRequest: "フォローリクエストされました"
 followRequestAccepted: "フォローが承認されました"

packages/client/src/components/note.vue

@@ -41,7 +41,7 @@
 					<Mfm v-if="appearNote.cw != ''" class="text" :text="appearNote.cw" :author="appearNote.user" :i="$i" :custom-emojis="appearNote.emojis"/>
 					<XCwButton v-model="showContent" :note="appearNote"/>
 				</p>
-				<div v-show="appearNote.cw == null || showContent" class="content" :class="{ collapsed }">
+				<div v-show="appearNote.cw == null || showContent" class="content" :class="{ collapsed, isLong }">
 					<div class="text">
 						<span v-if="appearNote.isHidden" style="opacity: 0.5">({{ i18n.ts.private }})</span>
 						<MkA v-if="appearNote.replyId" class="reply" :to="`/notes/${appearNote.replyId}`"><i class="fas fa-reply"></i></MkA>
@@ -61,9 +61,12 @@
 					<XPoll v-if="appearNote.poll" ref="pollViewer" :note="appearNote" class="poll"/>
 					<MkUrlPreview v-for="url in urls" :key="url" :url="url" :compact="true" :detail="false" class="url-preview"/>
 					<div v-if="appearNote.renote" class="renote"><XNoteSimple :note="appearNote.renote"/></div>
-					<button v-if="collapsed" class="fade _button" @click="collapsed = false">
+					<button v-if="isLong && collapsed" class="fade _button" @click="collapsed = false">
 						<span>{{ i18n.ts.showMore }}</span>
 					</button>
+					<button v-else-if="isLong && !collapsed" class="showLess _button" @click="collapsed = true">
+						<span>{{ i18n.ts.showLess }}</span>
+					</button>
 				</div>
 				<MkA v-if="appearNote.channel && !inChannel" class="channel" :to="`/channels/${appearNote.channel.id}`"><i class="fas fa-satellite-dish"></i> {{ appearNote.channel.name }}</MkA>
 			</div>
@@ -162,10 +165,11 @@ const reactButton = ref<HTMLElement>();
 let appearNote = $computed(() => isRenote ? note.renote as misskey.entities.Note : note);
 const isMyRenote = $i && ($i.id === note.userId);
 const showContent = ref(false);
-const collapsed = ref(appearNote.cw == null && appearNote.text != null && (
+const isLong = (appearNote.cw == null && appearNote.text != null && (
 	(appearNote.text.split('\n').length > 9) ||
 	(appearNote.text.length > 500)
 ));
+const collapsed = ref(appearNote.cw == null && isLong);
 const isDeleted = ref(false);
 const muted = ref(checkWordMute(appearNote, $i, defaultStore.state.mutedWords));
 const translation = ref(null);
@@ -442,6 +446,24 @@ function readPromo() {
 				}
 
 				> .content {
+					&.isLong {
+						> .showLess {
+							width: 100%;
+							margin-top: 1em;
+							position: sticky;
+							bottom: 1em;
+
+							> span {
+								display: inline-block;
+								background: var(--popup);
+								padding: 6px 10px;
+								font-size: 0.8em;
+								border-radius: 999px;
+								box-shadow: 0 2px 6px rgb(0 0 0 / 20%);
+							}
+						}
+					}
+
 					&.collapsed {
 						position: relative;
 						max-height: 9em;