show fingerprint

Signed-off-by: 21pages <pages21@163.com>

flutter/lib/common/shared_state.dart

@@ -121,6 +121,29 @@ class ConnectionTypeState {
       Get.find<ConnectionType>(tag: tag(id));
 }
 
+class FingerprintState {
+  static String tag(String id) => 'fingerprint_$id';
+
+  static void init(String id) {
+    final key = tag(id);
+    if (!Get.isRegistered(tag: key)) {
+      final RxString state = ''.obs;
+      Get.put(state, tag: key);
+    } else {
+      Get.find<RxString>(tag: key).value = '';
+    }
+  }
+
+  static void delete(String id) {
+    final key = tag(id);
+    if (Get.isRegistered(tag: key)) {
+      Get.delete(tag: key);
+    }
+  }
+
+  static RxString find(String id) => Get.find<RxString>(tag: tag(id));
+}
+
 class ShowRemoteCursorState {
   static String tag(String id) => 'show_remote_cursor_$id';
 
@@ -269,6 +292,7 @@ initSharedStates(String id) {
   KeyboardEnabledState.init(id);
   ShowRemoteCursorState.init(id);
   RemoteCursorMovedState.init(id);
+  FingerprintState.init(id);
   PeerBoolOption.init(id, 'zoom-cursor', () => false);
 }
 
@@ -279,5 +303,6 @@ removeSharedStates(String id) {
   ShowRemoteCursorState.delete(id);
   KeyboardEnabledState.delete(id);
   RemoteCursorMovedState.delete(id);
+  FingerprintState.delete(id);
   PeerBoolOption.delete(id, 'zoom-cursor');
 }