dev: 支持清空数据库

lib/Sqlite3Helper.py

@@ -255,6 +255,7 @@ def order(column: Column | str | int,
 class Sqlite3Worker(object):
 
     def __init__(self, db_name: str | PathLike[str] = ":memory:"):
+        self._db_name = db_name
         self._conn = sqlite3.connect(db_name)
         self._cursor = self._conn.cursor()
         self._is_closed = False
@@ -262,6 +263,10 @@ class Sqlite3Worker(object):
     def __del__(self):
         self.close()
 
+    @property
+    def db_name(self) -> str:
+        return self._db_name
+
     def close(self):
         if self._is_closed is False:
             self._cursor.close()

src/page_load.py

@@ -1,8 +1,12 @@
 # coding: utf8
+import sqlite3
+from pathlib import Path
+
 from PySide6 import QtWidgets
 from pykeepass.exceptions import CredentialsError
 
 from .gbx_kps_login import GbxKpsLogin
+from .utils import accept_warning
 from lib.Sqlite3Helper import Sqlite3Worker
 from lib.kps_operations import read_kps_to_db
 
@@ -18,6 +22,14 @@ class WgLoadKps(QtWidgets.QWidget):
         self.setLayout(self.vly_m)
         self.vly_m.addStretch(1)
 
+    def update_load_status(self, wg: GbxKpsLogin):
+        db_name = Path(self.sqh.db_name).name
+        loaded_mem = self.config["loaded_memory"]
+        if db_name in loaded_mem and wg.lne_path.text() in loaded_mem[db_name]:
+            wg.set_loaded(True)
+        else:
+            wg.set_loaded(False)
+
     def add_kps(self, path: str):
         wg = GbxKpsLogin(path, self)
         wg.pbn_remove.clicked_with_item.connect(self.on_item_pbn_remove_clicked)
@@ -26,6 +38,9 @@ class WgLoadKps(QtWidgets.QWidget):
         self.vly_m.insertWidget(self.vly_m.count() - 1, wg)
         self.kps_wgs.append(wg)
 
+        # 检查是否已经加载过
+        self.update_load_status(wg)
+
     def on_item_pbn_remove_clicked(self, item: GbxKpsLogin):
         self.vly_m.removeWidget(item)
         self.kps_wgs.remove(item)
@@ -43,6 +58,11 @@ class WgLoadKps(QtWidgets.QWidget):
             return
 
         item.set_loaded(True)
+        loaded_mem = self.config["loaded_memory"]
+        db_name = Path(self.sqh.db_name).name
+        if db_name not in loaded_mem:
+            loaded_mem[db_name] = []
+        loaded_mem[db_name].append(item.lne_path.text())
 
     def update_sqh(self, sqh: Sqlite3Worker):
         self.sqh = sqh
@@ -53,18 +73,26 @@ class WgLoadKps(QtWidgets.QWidget):
 class PageLoad(QtWidgets.QWidget):
     def __init__(self, sqh: Sqlite3Worker, config: dict, parent=None):
         super().__init__(parent)
+        self.sqh = sqh
+        self.config = config
+
         self.hly_m = QtWidgets.QHBoxLayout()
         self.setLayout(self.hly_m)
         self.vly_left = QtWidgets.QVBoxLayout()
         self.hly_m.addLayout(self.vly_left)
 
-        self.pbn_add = QtWidgets.QPushButton("添加", self)
+        self.pbn_add_kps = QtWidgets.QPushButton("添加 KPS", self)
-        self.pbn_add.setMinimumWidth(config["button_min_width"])
+        self.pbn_add_kps.setMinimumWidth(config["button_min_width"])
-        self.vly_left.addWidget(self.pbn_add)
+        self.vly_left.addWidget(self.pbn_add_kps)
-        self.pbn_load_all = QtWidgets.QPushButton("加载全部", self)
+
-        self.pbn_load_all.setMinimumWidth(config["button_min_width"])
+        self.pbn_clear_db = QtWidgets.QPushButton("清空数据库", self)
-        self.pbn_load_all.setDisabled(True)
+        self.pbn_clear_db.setMinimumWidth(config["button_min_width"])
-        self.vly_left.addWidget(self.pbn_load_all)
+        self.vly_left.addWidget(self.pbn_clear_db)
+
+        self.pbn_clear_loaded_mem = QtWidgets.QPushButton("清空加载记忆", self)
+        self.pbn_clear_loaded_mem.setMinimumWidth(config["button_min_width"])
+        self.vly_left.addWidget(self.pbn_clear_loaded_mem)
+
         self.vly_left.addStretch(1)
 
         self.sa_m = QtWidgets.QScrollArea(self)
@@ -73,9 +101,14 @@ class PageLoad(QtWidgets.QWidget):
         self.wg_sa = WgLoadKps(sqh, config, self.sa_m)
         self.sa_m.setWidget(self.wg_sa)
 
-        self.pbn_add.clicked.connect(self.on_pbn_add_clicked)
+        self.pbn_add_kps.clicked.connect(self.on_pbn_add_kps_clicked)
+        self.pbn_clear_db.clicked.connect(self.on_pbn_clear_db_clicked)
+        self.pbn_clear_loaded_mem.clicked.connect(self.on_pbn_clear_loaded_mem_clicked)
 
-    def on_pbn_add_clicked(self):
+    def update_sqh(self, sqh: Sqlite3Worker):
+        self.wg_sa.update_sqh(sqh)
+
+    def on_pbn_add_kps_clicked(self):
         filenames, _ = QtWidgets.QFileDialog.getOpenFileNames(self, "选择", "../",
                                                               filter="KeePass 2 数据库 (*.kdbx);;所有文件 (*)")
         if len(filenames) == 0:
@@ -83,5 +116,35 @@ class PageLoad(QtWidgets.QWidget):
         for filename in filenames:
             self.wg_sa.add_kps(filename)
 
-    def update_sqh(self, sqh: Sqlite3Worker):
+    def on_pbn_clear_db_clicked(self):
-        self.wg_sa.update_sqh(sqh)
+        if accept_warning(self, True, "警告", "你确定要清空当前数据库吗？"):
+            return
+
+        try:
+            self.sqh.delete_from(self.config["table_name"])
+        except sqlite3.OperationalError as e:
+            QtWidgets.QMessageBox.critical(self, "错误", f"清空数据库失败：\n{e}")
+        else:
+            QtWidgets.QMessageBox.information(self, "提示", "已清空数据库")
+
+            # 清空配置文件加载记忆
+            loaded_mem = self.config["loaded_memory"]
+            db_name = Path(self.sqh.db_name).name
+            if db_name in loaded_mem:
+                loaded_mem[db_name].clear()
+
+            # 更新kps加载状态
+            for wg in self.wg_sa.kps_wgs:
+                self.wg_sa.update_load_status(wg)
+
+    def on_pbn_clear_loaded_mem_clicked(self):
+        if accept_warning(self, True, "警告", "你确定要清空所有加载记忆吗？"):
+            return
+
+        loaded_mem: dict = self.config["loaded_memory"]
+        loaded_mem.clear()
+        QtWidgets.QMessageBox.information(self, "提示", "已清空加载记忆")
+
+        # 更新kps加载状态
+        for wg in self.wg_sa.kps_wgs:
+            self.wg_sa.update_load_status(wg)

src/utils.py

@@ -0,0 +1,11 @@
+# coding: utf8
+from PySide6 import QtWidgets
+
+
+def accept_warning(widget: QtWidgets.QWidget, condition: bool,
+                   caption: str = "Warning", text: str = "Are you sure to continue?") -> bool:
+    if condition:
+        b = QtWidgets.QMessageBox.question(widget, caption, text)
+        if b == QtWidgets.QMessageBox.StandardButton.No:
+            return True
+    return False