新增删除剪切板内容功能

lib/features/recording/recording_page.dart

@@ -98,6 +98,13 @@ class _RecordingPageState extends ConsumerState<RecordingPage> {
     await ref.read(recordingSessionControllerProvider.notifier).startRecording();
   }
 
+  void _clearClipboardForNewRound() {
+    ref.read(recordingViewModelProvider.notifier).resetClipboardInfo();
+    ref
+        .read(recordingSessionControllerProvider.notifier)
+        .clearSavedRecordingResult();
+  }
+
   Future<void> _showRecordingSavedDialogIfNeeded() async {
     final session = ref.read(recordingSessionControllerProvider);
     if (session.lastSavedDisplayName == null || session.gallerySaveFailed) {
@@ -118,12 +125,7 @@ class _RecordingPageState extends ConsumerState<RecordingPage> {
             .read(recordingSessionControllerProvider.notifier)
             .clearSavedRecordingResult();
       },
-      onRecordNewRound: () {
+      onRecordNewRound: _clearClipboardForNewRound,
-        ref.read(recordingViewModelProvider.notifier).resetClipboardInfo();
-        ref
-            .read(recordingSessionControllerProvider.notifier)
-            .clearSavedRecordingResult();
-      },
     );
   }
 
@@ -188,6 +190,7 @@ class _RecordingPageState extends ConsumerState<RecordingPage> {
               eventAddress: showClipboardInfo ? clipboard.address : null,
               showClipboardHint: showClipboardInfo,
               clipboardAddress: clipboard.address.trim(),
+              onClearEventInfo: _clearClipboardForNewRound,
               onPasteEventInfo: () async {
                 final result = await ref
                     .read(recordingViewModelProvider.notifier)
@@ -268,6 +271,7 @@ class _RecordingHud extends StatelessWidget {
     this.eventAddress,
     this.showClipboardHint = false,
     this.clipboardAddress = '',
+    required this.onClearEventInfo,
     required this.onPasteEventInfo,
     required this.onStart,
     required this.onStop,
@@ -281,6 +285,7 @@ class _RecordingHud extends StatelessWidget {
   final String? eventAddress;
   final bool showClipboardHint;
   final String clipboardAddress;
+  final VoidCallback onClearEventInfo;
   final Future<void> Function() onPasteEventInfo;
   final Future<void> Function() onStart;
   final Future<void> Function() onStop;
@@ -446,15 +451,36 @@ class _RecordingHud extends StatelessWidget {
               right: 12.w,
               child: Padding(
                 padding: EdgeInsets.only(right: state.isRecording ? 96.w : 0),
-                child: Text(
+                child: Row(
-                  eventTitle!,
+                  children: [
-                  style: _overlayTextStyle.copyWith(
+                    Expanded(
-                    fontSize: 16.sp,
+                      child: Text(
-                    fontWeight: FontWeight.w600,
+                        eventTitle!,
-                  ),
+                        style: _overlayTextStyle.copyWith(
-                  textAlign: TextAlign.center,
+                          fontSize: 16.sp,
-                  maxLines: 2,
+                          fontWeight: FontWeight.w600,
-                  overflow: TextOverflow.ellipsis,
+                        ),
+                        textAlign: TextAlign.center,
+                        maxLines: 2,
+                        overflow: TextOverflow.ellipsis,
+                      ),
+                    ),
+                    if (!state.isRecording)
+                      IconButton(
+                        onPressed: onClearEventInfo,
+                        icon: Icon(
+                          Icons.delete_outline,
+                          color: Colors.white,
+                          size: 22.r,
+                        ),
+                        padding: EdgeInsets.zero,
+                        constraints: BoxConstraints(
+                          minWidth: 40.r,
+                          minHeight: 40.r,
+                        ),
+                        tooltip: '删除',
+                      ),
+                  ],
                 ),
               ),
             ),