feat: add chrome path picker

app/gui/tabs/settings.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 from contextlib import contextmanager
+import os
 
 from ... import ai as ai_module
 from ..widgets import *
@@ -165,6 +166,15 @@ class SettingsTab(QWidget):
         self.jpg_quality_spin.setRange(1, 100)
         self.chrome_path_edit = QLineEdit()
         self.chrome_path_edit.setObjectName("chromePathEdit")
+        self.chrome_path_browse_button = QPushButton("选择...")
+        self.chrome_path_browse_button.setObjectName("chromePathBrowseButton")
+        self.chrome_path_widget = QWidget()
+        self.chrome_path_widget.setObjectName("chromePathWidget")
+        chrome_path_layout = QHBoxLayout(self.chrome_path_widget)
+        chrome_path_layout.setContentsMargins(0, 0, 0, 0)
+        chrome_path_layout.setSpacing(8)
+        chrome_path_layout.addWidget(self.chrome_path_edit, 1)
+        chrome_path_layout.addWidget(self.chrome_path_browse_button)
         self.user_data_root_edit = QLineEdit()
         self.user_data_root_edit.setObjectName("userDataRootEdit")
         self.user_data_root_edit.setEnabled(False)
@@ -271,7 +281,7 @@ class SettingsTab(QWidget):
 
         path_form = self._three_column_form(
             [
-                ("Chrome路径", self.chrome_path_edit, True),
+                ("Chrome路径", self.chrome_path_widget, True),
                 ("默认调试端口", self.default_debug_port_spin),
                 ("调试端口范围", port_range_widget),
                 ("CDP就绪超时(秒)", self.cdp_ready_timeout_spin),
@@ -403,6 +413,7 @@ class SettingsTab(QWidget):
         self.resolution_combo.currentIndexChanged.connect(
             self._update_response_timeout_label
         )
+        self.chrome_path_browse_button.clicked.connect(self.browse_chrome_path)
         self.save_config_button.clicked.connect(self.save_app_settings)
         self._connect_dirty_signals()
 
@@ -533,6 +544,23 @@ class SettingsTab(QWidget):
     def is_dirty(self):
         return self._dirty
 
+    def browse_chrome_path(self, checked=False):
+        current = self.chrome_path_edit.text().strip()
+        initial_dir = ""
+        if current:
+            parent_dir = os.path.dirname(os.path.expanduser(current))
+            if parent_dir and os.path.isdir(parent_dir):
+                initial_dir = parent_dir
+        path, _selected_filter = QFileDialog.getOpenFileName(
+            self,
+            "选择 Chrome 程序",
+            initial_dir,
+            "Chrome 程序 (chrome.exe);;可执行文件 (*.exe);;所有文件 (*)",
+        )
+        if not path:
+            return
+        self.chrome_path_edit.setText(path)
+
     def discard_unsaved_changes(self):
         try:
             saved = appconfig.load_config(self.config_path)