WIP

bouquin/tag_browser.py

@@ -0,0 +1,60 @@
+# tag_browser.py
+from PySide6.QtCore import Qt, Signal
+from PySide6.QtWidgets import (
+    QDialog,
+    QVBoxLayout,
+    QTreeWidget,
+    QTreeWidgetItem,
+    QPushButton,
+)
+
+from .db import DBManager
+from . import strings
+
+
+class TagBrowserDialog(QDialog):
+    openDateRequested = Signal(str)
+
+    def __init__(self, db: DBManager, parent=None, focus_tag: str | None = None):
+        super().__init__(parent)
+        self._db = db
+        self.setWindowTitle(strings._("tag_browser_title"))
+
+        layout = QVBoxLayout(self)
+        self.tree = QTreeWidget()
+        self.tree.setHeaderLabels([strings._("tag"), strings._("date")])
+        self.tree.itemActivated.connect(self._on_item_activated)
+        layout.addWidget(self.tree)
+
+        close_btn = QPushButton(strings._("close"))
+        close_btn.clicked.connect(self.accept)
+        layout.addWidget(close_btn)
+
+        self._populate(focus_tag)
+
+    def _populate(self, focus_tag: str | None):
+        tags = self._db.list_tags()
+        focus_item = None
+        for tag_id, name, color in tags:
+            root = QTreeWidgetItem([name, ""])
+            # coloured background or icon:
+            root.setData(0, Qt.ItemDataRole.UserRole, name)
+            self.tree.addTopLevelItem(root)
+
+            pages = self._db.get_pages_for_tag(name)
+            for date_iso, _content in pages:
+                child = QTreeWidgetItem(["", date_iso])
+                child.setData(0, Qt.ItemDataRole.UserRole, date_iso)
+                root.addChild(child)
+
+            if focus_tag and name.lower() == focus_tag.lower():
+                focus_item = root
+
+        if focus_item:
+            self.tree.expandItem(focus_item)
+            self.tree.setCurrentItem(focus_item)
+
+    def _on_item_activated(self, item: QTreeWidgetItem, column: int):
+        date_iso = item.data(0, Qt.ItemDataRole.UserRole)
+        if isinstance(date_iso, str) and date_iso:
+            self.openDateRequested.emit(date_iso)