cache window size/pos

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/utils/storage_key.dart

@@ -136,7 +136,9 @@ abstract class SettingBoxKey {
       showFsLockBtn = 'showFsLockBtn',
       silentDownImg = 'silentDownImg',
       showMemberShop = 'showMemberShop',
-      minimizeOnExit = 'minimizeOnExit';
+      minimizeOnExit = 'minimizeOnExit',
+      windowSize = 'windowSize',
+      windowPosition = 'windowPosition';
 
   static const String subtitlePreferenceV2 = 'subtitlePreferenceV2',
       enableDragSubtitle = 'enableDragSubtitle',

lib/utils/storage_pref.dart

@@ -815,4 +815,12 @@ abstract class Pref {
 
   static bool get minimizeOnExit =>
       _setting.get(SettingBoxKey.minimizeOnExit, defaultValue: true);
+
+  static List<double> get windowSize => _setting.get(
+    SettingBoxKey.windowSize,
+    defaultValue: const [1180.0, 720.0],
+  );
+
+  static List<double>? get windowPosition =>
+      _setting.get(SettingBoxKey.windowPosition);
 }

lib/utils/utils.dart

@@ -115,15 +115,15 @@ abstract class Utils {
     );
   }
 
-  static void copyText(
+  static Future<void> copyText(
     String text, {
     bool needToast = true,
     String? toastText,
   }) {
-    Clipboard.setData(ClipboardData(text: text));
     if (needToast) {
       SmartDialog.showToast(toastText ?? '已复制');
     }
+    return Clipboard.setData(ClipboardData(text: text));
   }
 
   static String makeHeroTag(v) {