feat(*): Support parsing post section locked with reply

CHANGELOG.md

@@ -10,6 +10,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - 新增解析帖子楼层正文`postmessage`中的隐藏部分。
 - 新增解析帖子中由于积分不足而隐藏的部分。
+- 新增解析帖子中回复后才可见的部分。
 
 ### Fixed
 

lib/i18n/strings.i18n.json

@@ -244,6 +244,10 @@
       "confirmInfo": "Purchase from $author with is price $price.\nThe author will get $authorProfit coins.\nYou will have $coinsLast coins left after purchase",
       "successPurchase": "Purchase success",
       "successPurchaseInfo": "Will refresh this page"
+    },
+    "reply": {
+      "title": "Some content requires reply",
+      "detail": "Reply to see contents here"
     }
   },
   "rateCard": {

lib/i18n/strings_zh-CN.i18n.json

@@ -244,6 +244,10 @@
       "confirmInfo": "从 $author 处以 $price 个天使币的价格购买帖子。\n作者会得到 $authorProfit 个天使币。\n购买后你还有 $coinsLast 个天使币。",
       "successPurchase": "购买成功",
       "successPurchaseInfo": "即将刷新页面"
+    },
+    "reply": {
+      "title": "部分需要回复才可浏览",
+      "detail": "回复以查看该部分内容"
     }
   },
   "rateCard": {

lib/i18n/strings_zh-TW.i18n.json

@@ -244,6 +244,10 @@
       "confirmInfo": "从 $author 处以 $price 個天使幣的价格帖子。\n作者會得到 $authorProfit 個天使幣。\n購買后你還有 $coinsLast 個天使幣。",
       "successPurchase": "購買成功",
       "successPurchaseInfo": "即將重新整理頁面"
+    },
+    "reply": {
+      "title": "部分需要回覆才可瀏覽",
+      "detail": "回覆以查看該部分內容"
     }
   },
   "rateCard": {

lib/models/locked.dart

@@ -19,8 +19,11 @@ class _LockedInfo {
     required String tid,
     required String pid,
   }) = _LockedWithPurchase;
+
+  const factory _LockedInfo.reply() = _LockedWithReply;
 }
 
+/// This section is invisible because current user does not have enough points.
 @immutable
 final class _LockedWithPoints extends _LockedInfo {
   const _LockedWithPoints({
@@ -35,6 +38,7 @@ final class _LockedWithPoints extends _LockedInfo {
   final int points;
 }
 
+/// This section needs purchase to be visible.
 @immutable
 final class _LockedWithPurchase extends _LockedInfo {
   const _LockedWithPurchase(
@@ -57,6 +61,12 @@ final class _LockedWithPurchase extends _LockedInfo {
   final int purchasedCount;
 }
 
+/// This section needs reply to be visible.
+@immutable
+final class _LockedWithReply extends _LockedInfo {
+  const _LockedWithReply() : super._();
+}
+
 class Locked {
   /// Build a [Locked] from html node [element] where [element] is:
   /// <div class="locked">
@@ -69,10 +79,12 @@ class Locked {
     uh.Element element, {
     bool allowWithPoints = true,
     bool allowWithPurchase = true,
+    bool allowWithReply = true,
   }) : _info = _buildLockedFromNode(
           element,
           allowWithPoints: allowWithPoints,
           allowWithPurchase: allowWithPurchase,
+          allowWithReply: allowWithReply,
         );
 
   static final _re =
@@ -84,6 +96,8 @@ class Locked {
 
   bool get lockedWithPurchase => _info != null && _info is _LockedWithPurchase;
 
+  bool get lockedWithReply => _info != null && _info is _LockedWithReply;
+
   String? get tid {
     if (_info == null) {
       return null;
@@ -149,7 +163,13 @@ class Locked {
     uh.Element element, {
     required bool allowWithPoints,
     required bool allowWithPurchase,
+    required bool allowWithReply,
   }) {
+    // Check if is locked with reply.
+    if (allowWithReply && element.innerText.contains('查看本帖隐藏内容请回复')) {
+      return const _LockedInfo.reply();
+    }
+
     final price = element
         .querySelector('strong')
         ?.firstEndDeepText()
@@ -206,6 +226,10 @@ class Locked {
     if (_info == null) {
       return false;
     }
+    if (_info is _LockedWithReply) {
+      return true;
+    }
+
     if (_info is _LockedWithPurchase) {
       return (_info! as _LockedWithPurchase).price > 0 &&
           tid != null &&

lib/models/post.dart

@@ -126,7 +126,8 @@ class Post {
     final locked = postDataNode
         ?.querySelectorAll('div.locked')
         .where((e) => e.querySelector('span') == null)
-        .map((e) => Locked.fromLockDivNode(e, allowWithPoints: false))
+        .map((e) => Locked.fromLockDivNode(e,
+            allowWithPoints: false, allowWithReply: false))
         .toList();
 
     final postFloor = postDataNode

lib/widgets/locked_card.dart

@@ -171,6 +171,17 @@ class _LockedCardState extends ConsumerState<LockedCard> {
               : _buildPurchaseButton(context),
         ),
       ]);
+    } else if (widget.locked.lockedWithReply) {
+      widgets.addAll([
+        Text(
+          context.t.lockedCard.reply.title,
+          style: Theme.of(context).textTheme.titleMedium,
+        ),
+        Text(
+          context.t.lockedCard.reply.detail,
+          style: Theme.of(context).textTheme.labelMedium,
+        ),
+      ]);
     }
 
     return Card(