fix: resolve search hang and Linux WebView issues

Author: mumu-lhl

lib/repositories/dictionary.dart

@@ -111,7 +111,7 @@ class Mdict {
   bool hasJs = false;
 
   late HttpServer? server;
-  late int port;
+  int port = 0;
 
   static const maxBatchSize = 50000;
   static const maxLoadingCount = 5000;
@@ -127,6 +127,7 @@ class Mdict {
     title = reader.header["Title"] ?? basename(path);
 
     await dictionaryListDao.add(path, title);
+    isLoading = false;
   }
 
   Future<void> close() async {
@@ -183,6 +184,12 @@ class Mdict {
         if (type == "mdx") {
           isLoading = false;
         }
+      }, onError: (e) {
+        if (type == "mdx") {
+          isLoading = false;
+        }
+        talker.error("Failed to import cache for $id ($type): $e");
+        cacheFile.delete().catchError((_) => cacheFile);
       });
 
       return true;
@@ -230,17 +237,17 @@ class Mdict {
 
   Future<void> initDictReaders() async {
     if (!await hitCache(id, "mdx", reader)) {
-      reader.initDict(readHeader: false);
       reader.setOnRecordBlockInfoRead(saveCache(id, "mdx", reader));
+      reader.initDict(readHeader: false);
     }
 
     final mddFile = File("$path.mdd");
     if (await mddFile.exists()) {
       final reader = DictReader(mddFile.path);
 
       if (!await hitCache(id, "mdd", reader)) {
-        reader.initDict();
         reader.setOnRecordBlockInfoRead(saveCache(id, "mdd", reader));
+        reader.initDict();
       } else {
         reader.initDict(readKeys: false, readRecordBlockInfo: false);
       }
@@ -254,8 +261,8 @@ class Mdict {
         final reader = DictReader(mddFile.path);
 
         if (!await hitCache(id, "$i.mdd", reader)) {
-          reader.initDict();
           reader.setOnRecordBlockInfoRead(saveCache(id, "$i.mdd", reader));
+          reader.initDict();
         } else {
           reader.initDict(readKeys: false, readRecordBlockInfo: false);
         }
@@ -528,7 +535,7 @@ class Mdict {
 
   Future<void> _startServer() async {
     try {
-      server = await HttpServer.bind("localhost", 0);
+      server = await HttpServer.bind(InternetAddress.loopbackIPv4, 0);
       port = server!.port;
       talker.info("HTTP server started on port $port");
 

lib/ui/core/word_display/webview_widgets.dart

@@ -1,4 +1,5 @@
 import "dart:convert";
+import "dart:io";
 
 import "package:ciyue/core/app_globals.dart";
 import "package:ciyue/repositories/dictionary.dart";
@@ -236,21 +237,58 @@ class WebviewWindows extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final port = dictManager.dicts[dictId]!.port;
-    final url = "http://localhost:$port/";
+
+    if (port == 0) {
+      return const Center(child: CircularProgressIndicator());
+    }
+
+    final url = "http://127.0.0.1:$port/";
 
     final Uint8List postData = Uint8List.fromList(
       utf8.encode(json.encode({"content": content})),
     );
+
+    final isLightTheme = settings.themeMode == ThemeMode.light ||
+        settings.themeMode == ThemeMode.system &&
+            MediaQuery.of(context).platformBrightness == Brightness.light;
+
+    final webviewSettings = InAppWebViewSettings(
+      useWideViewPort: false,
+      algorithmicDarkeningAllowed: !isLightTheme,
+      resourceCustomSchemes: ["entry", "sound"],
+      transparentBackground: true,
+    );
+
+    if (Platform.isLinux) {
+      return InAppWebView(
+        initialSettings: webviewSettings,
+        initialUrlRequest: URLRequest(
+          url: WebUri(url),
+          method: "POST",
+          body: postData,
+        ),
+        initialData: InAppWebViewInitialData(
+          data: content,
+          baseUrl: WebUri(url),
+        ),
+        onLoadResourceWithCustomScheme:
+            onLoadResourceWithCustomSchemeWarpper(dictId),
+        shouldOverrideUrlLoading:
+            shouldOverrideUrlLoadingWarpper(dictId, context),
+      );
+    }
+
     return FutureBuilder(
       future: WebViewEnvironment.create(
         settings: WebViewEnvironmentSettings(
           userDataFolder: windowsWebview2Directory,
         ),
       ),
       builder: (context, snapshot) {
-        if (snapshot.hasData) {
+        if (snapshot.hasData || snapshot.hasError) {
           return InAppWebView(
             webViewEnvironment: snapshot.data,
+            initialSettings: webviewSettings,
             initialUrlRequest: URLRequest(
               url: WebUri(url),
               method: "POST",

pubspec.lock

@@ -1512,26 +1512,26 @@ packages:
     dependency: "direct dev"
     description:
       name: test
-      sha256: "77cc98ea27006c84e71a7356cf3daf9ddbde2d91d84f77dbfe64cf0e4d9611ae"
+      sha256: "54c516bbb7cee2754d327ad4fca637f78abfc3cbcc5ace83b3eda117e42cd71a"
       url: "https://pub.dev"
     source: hosted
-    version: "1.28.0"
+    version: "1.29.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      sha256: "19a78f63e83d3a61f00826d09bc2f60e191bf3504183c001262be6ac75589fb8"
+      sha256: "93167629bfc610f71560ab9312acdda4959de4df6fac7492c89ff0d3886f6636"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.8"
+    version: "0.7.9"
   test_core:
     dependency: transitive
     description:
       name: test_core
-      sha256: f1072617a6657e5fc09662e721307f7fb009b4ed89b19f47175d11d5254a62d4
+      sha256: "394f07d21f0f2255ec9e3989f21e54d3c7dc0e6e9dbce160e5a9c1a6be0e2943"
       url: "https://pub.dev"
     source: hosted
-    version: "0.6.14"
+    version: "0.6.15"
   timezone:
     dependency: transitive
     description: