Store tag categories in bookmarks, tag click switches to Browse

- Bookmarks DB now stores tag_categories as JSON
- Migration adds column to existing favorites table
- Bookmark info panel uses stored categories directly
- Falls back to library_meta if bookmark has no categories
- Tag click in info panel: clears preview, switches to Browse, searches

booru_viewer/core/db.py

@@ -134,6 +134,7 @@ class Bookmark:
     cached_path: str | None
     folder: str | None
     bookmarked_at: str
+    tag_categories: dict = field(default_factory=dict)
 
 
 # Back-compat alias — will be removed in a future version.
@@ -168,10 +169,14 @@ class Database:
         tables = {r[0] for r in self._conn.execute("SELECT name FROM sqlite_master WHERE type='table'").fetchall()}
         if "library_meta" in tables:
             cur = self._conn.execute("PRAGMA table_info(library_meta)")
-            cols = {row[1] for row in cur.fetchall()}
-            if "tag_categories" not in cols:
+            meta_cols = {row[1] for row in cur.fetchall()}
+            if "tag_categories" not in meta_cols:
                 self._conn.execute("ALTER TABLE library_meta ADD COLUMN tag_categories TEXT DEFAULT ''")
                 self._conn.commit()
+        # Add tag_categories to favorites if missing
+        if "tag_categories" not in cols:
+            self._conn.execute("ALTER TABLE favorites ADD COLUMN tag_categories TEXT DEFAULT ''")
+            self._conn.commit()
 
     def close(self) -> None:
         if self._conn:
@@ -259,13 +264,16 @@ class Database:
         source: str | None = None,
         cached_path: str | None = None,
         folder: str | None = None,
+        tag_categories: dict | None = None,
     ) -> Bookmark:
+        import json
         now = datetime.now(timezone.utc).isoformat()
+        cats_json = json.dumps(tag_categories) if tag_categories else ""
         cur = self.conn.execute(
             "INSERT OR IGNORE INTO favorites "
-            "(site_id, post_id, file_url, preview_url, tags, rating, score, source, cached_path, folder, favorited_at) "
-            "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
-            (site_id, post_id, file_url, preview_url, tags, rating, score, source, cached_path, folder, now),
+            "(site_id, post_id, file_url, preview_url, tags, rating, score, source, cached_path, folder, favorited_at, tag_categories) "
+            "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+            (site_id, post_id, file_url, preview_url, tags, rating, score, source, cached_path, folder, now, cats_json),
         )
         self.conn.commit()
         return Bookmark(
@@ -352,6 +360,9 @@ class Database:
 
     @staticmethod
     def _row_to_bookmark(r) -> Bookmark:
+        import json
+        cats_raw = r["tag_categories"] if "tag_categories" in r.keys() else ""
+        cats = json.loads(cats_raw) if cats_raw else {}
         return Bookmark(
             id=r["id"],
             site_id=r["site_id"],
@@ -365,6 +376,7 @@ class Database:
             cached_path=r["cached_path"],
             folder=r["folder"] if "folder" in r.keys() else None,
             bookmarked_at=r["favorited_at"],
+            tag_categories=cats,
         )
 
     # Back-compat shim

booru_viewer/gui/app.py

@@ -542,6 +542,8 @@ class BooruApp(QMainWindow):
             self._grid.setFocus()
 
     def _on_tag_clicked(self, tag: str) -> None:
+        self._preview.clear()
+        self._switch_view(0)
         self._search_bar.set_text(tag)
         self._on_search(tag)
 
@@ -1146,8 +1148,10 @@ class BooruApp(QMainWindow):
         self._status.showMessage(f"Bookmark #{fav.post_id}")
         # Show bookmark tags in info panel
         from ..core.api.base import Post
-        meta = self._db.get_library_meta(fav.post_id)
-        cats = meta.get("tag_categories", {}) if meta else {}
+        cats = fav.tag_categories or {}
+        if not cats:
+            meta = self._db.get_library_meta(fav.post_id)
+            cats = meta.get("tag_categories", {}) if meta else {}
         p = Post(
             id=fav.post_id, file_url=fav.file_url or "",
             preview_url=fav.preview_url, tags=fav.tags or "",
@@ -1672,6 +1676,7 @@ class BooruApp(QMainWindow):
                         file_url=post.file_url, preview_url=post.preview_url,
                         tags=post.tags, rating=post.rating, score=post.score,
                         source=post.source, cached_path=str(path),
+                        tag_categories=post.tag_categories,
                     )
                     self._signals.bookmark_done.emit(idx, f"Bookmarked {i+1}/{len(posts)}")
                 except Exception as e:
@@ -2054,6 +2059,7 @@ class BooruApp(QMainWindow):
                         score=post.score,
                         source=post.source,
                         cached_path=str(path),
+                        tag_categories=post.tag_categories,
                     )
                     self._signals.bookmark_done.emit(index, f"Bookmarked #{post.id}")
                 except Exception as e: