[fix] fix cannot close connection from Server Window when the peer is a web client

src/gui/assets/localization/localization.h

@@ -146,6 +146,8 @@ static std::vector<std::string> p2p_disconnected = {
 static std::vector<std::string> p2p_connecting = {
     reinterpret_cast<const char*>(u8"正在建立对等连接..."),
     "P2P Connecting ..."};
+static std::vector<std::string> receiving_screen = {
+    reinterpret_cast<const char*>(u8"画面接收中..."), "Receiving screen..."};
 static std::vector<std::string> p2p_failed = {
     reinterpret_cast<const char*>(u8"对等连接失败"), "P2P Failed"};
 static std::vector<std::string> p2p_closed = {

src/gui/panels/recent_connections_panel.cpp

@@ -227,14 +227,8 @@ int Render::ShowRecentConnections() {
       if (ImGui::Button(connect_to_this_connection_button_name.c_str(),
                         ImVec2(recent_connection_button_width,
                                recent_connection_button_height))) {
-        if (online) {
-          ConnectTo(it.second.remote_id, it.second.password.c_str(),
-                    it.second.remember_password);
-        } else {
-          show_offline_warning_window_ = true;
-          offline_warning_text_ =
-              localization::device_offline[localization_language_index_];
-        }
+        ConnectTo(it.second.remote_id, it.second.password.c_str(),
+                  it.second.remember_password);
       }
     }
     ImGui::SetWindowFontScale(1.0f);

src/gui/panels/remote_peer_panel.cpp

@@ -197,6 +197,9 @@ int Render::ConnectTo(const std::string& remote_id, const char* password,
         props->control_window_max_width_ = title_bar_height_ * 9.0f;
         props->control_window_max_height_ = title_bar_height_ * 7.0f;
 
+        props->connection_status_ = ConnectionStatus::Connecting;
+        show_connection_status_window_ = true;
+
         if (!props->peer_) {
           LOG_INFO("Create peer [{}] instance failed", props->local_id_);
           return -1;

src/gui/render.cpp

@@ -1173,13 +1173,16 @@ int Render::DestroyServerWindow() {
 
   if (server_renderer_) {
     SDL_DestroyRenderer(server_renderer_);
+    server_renderer_ = nullptr;
   }
 
   if (server_window_) {
     SDL_DestroyWindow(server_window_);
+    server_window_ = nullptr;
   }
 
   server_window_created_ = false;
+  server_window_inited_ = false;
 
   return 0;
 }

src/gui/render.h

@@ -261,6 +261,8 @@ class Render {
   int NetTrafficStats(std::shared_ptr<SubStreamWindowProperties>& props);
   void DrawConnectionStatusText(
       std::shared_ptr<SubStreamWindowProperties>& props);
+  void DrawReceivingScreenText(
+      std::shared_ptr<SubStreamWindowProperties>& props);
 #ifdef __APPLE__
   int RequestPermissionWindow();
   bool CheckScreenRecordingPermission();

src/gui/render_callback.cpp

@@ -498,9 +498,9 @@ void Render::OnReceiveDataBufferCb(const char* data, size_t size,
             const double bps =
                 (static_cast<double>(delta_bytes) * 8.0) / delta_seconds;
             if (bps > 0.0) {
-              const double capped =
-                  (std::min)(bps, static_cast<double>(
-                                      (std::numeric_limits<uint32_t>::max)()));
+              const double capped = (std::min)(
+                  bps,
+                  static_cast<double>((std::numeric_limits<uint32_t>::max)()));
               estimated_rate_bps = static_cast<uint32_t>(capped);
             }
           }
@@ -655,6 +655,7 @@ void Render::OnSignalStatusCb(SignalStatus status, const char* user_id,
       render->signal_connected_ = false;
     } else if (SignalStatus::SignalConnected == status) {
       render->signal_connected_ = true;
+      render->need_to_send_recent_connections_ = true;
       LOG_INFO("[{}] connected to signal server", client_id);
     } else if (SignalStatus::SignalFailed == status) {
       render->signal_connected_ = false;
@@ -880,6 +881,8 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, const char* user_id,
 
         break;
       }
+      case ConnectionStatus::Disconnected:
+      case ConnectionStatus::Failed:
       case ConnectionStatus::Closed: {
         if (std::all_of(render->connection_status_.begin(),
                         render->connection_status_.end(), [](const auto& kv) {
@@ -901,6 +904,7 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, const char* user_id,
           }
 
           render->connection_status_.erase(remote_id);
+          render->connection_host_names_.erase(remote_id);
           if (render->screen_capturer_) {
             render->screen_capturer_->ResetToInitialMonitor();
           }

src/gui/windows/connection_status_window.cpp

@@ -36,6 +36,18 @@ bool Render::ConnectionStatusWindow(
     text = localization::p2p_connecting[localization_language_index_];
     ImGui::SetCursorPosX(connection_status_window_width * 0.43f);
     ImGui::SetCursorPosY(connection_status_window_height * 0.67f);
+    // cancel
+    if (ImGui::Button(
+            localization::cancel[localization_language_index_].c_str()) ||
+        ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+      show_connection_status_window_ = false;
+      re_enter_remote_id_ = true;
+      LOG_INFO("User cancelled connecting to [{}]", props->remote_id_);
+      if (props->peer_) {
+        LeaveConnection(props->peer_, props->remote_id_.c_str());
+      }
+      ret_flag = true;
+    }
   } else if (ConnectionStatus::Connected == props->connection_status_) {
     text = localization::p2p_connected[localization_language_index_];
     ImGui::SetCursorPosX(connection_status_window_width * 0.43f);

src/gui/windows/server_window.cpp

@@ -148,33 +148,38 @@ int Render::RemoteClientInfoWindow() {
 
   float font_scale = localization_language_index_ == 0 ? 0.5f : 0.45f;
 
-  std::vector<std::string> remote_hostnames;
-  remote_hostnames.reserve(connection_host_names_.size());
-  for (const auto& kv : connection_host_names_) {
-    remote_hostnames.push_back(kv.second);
+  std::vector<std::pair<std::string, std::string>> remote_entries;
+  remote_entries.reserve(connection_status_.size());
+  for (const auto& kv : connection_status_) {
+    const auto host_it = connection_host_names_.find(kv.first);
+    const std::string display_name =
+        (host_it != connection_host_names_.end() && !host_it->second.empty())
+            ? host_it->second
+            : kv.first;
+    remote_entries.emplace_back(kv.first, display_name);
   }
 
-  auto find_remote_id_by_hostname =
-      [this](const std::string& hostname) -> std::string {
-    for (const auto& kv : connection_host_names_) {
-      if (kv.second == hostname) {
-        return kv.first;
+  auto find_display_name_by_remote_id =
+      [&remote_entries](const std::string& remote_id) -> std::string {
+    for (const auto& entry : remote_entries) {
+      if (entry.first == remote_id) {
+        return entry.second;
       }
     }
     return {};
   };
 
-  if (!selected_server_remote_hostname_.empty()) {
-    if (std::find(remote_hostnames.begin(), remote_hostnames.end(),
-                  selected_server_remote_hostname_) == remote_hostnames.end()) {
-      selected_server_remote_hostname_.clear();
-      selected_server_remote_id_.clear();
-    }
+  if (!selected_server_remote_id_.empty() &&
+      find_display_name_by_remote_id(selected_server_remote_id_).empty()) {
+    selected_server_remote_id_.clear();
+    selected_server_remote_hostname_.clear();
   }
-  if (selected_server_remote_hostname_.empty() && !remote_hostnames.empty()) {
-    selected_server_remote_hostname_ = remote_hostnames.front();
-    selected_server_remote_id_ =
-        find_remote_id_by_hostname(selected_server_remote_hostname_);
+  if (selected_server_remote_id_.empty() && !remote_entries.empty()) {
+    selected_server_remote_id_ = remote_entries.front().first;
+  }
+  if (!selected_server_remote_id_.empty()) {
+    selected_server_remote_hostname_ =
+        find_display_name_by_remote_id(selected_server_remote_id_);
   }
 
   ImGui::SetWindowFontScale(font_scale);
@@ -196,13 +201,12 @@ int Render::RemoteClientInfoWindow() {
   ImGui::AlignTextToFramePadding();
   if (ImGui::BeginCombo("##server_remote_id", selected_preview)) {
     ImGui::SetWindowFontScale(localization_language_index_ == 0 ? 0.45f : 0.4f);
-    for (int i = 0; i < static_cast<int>(remote_hostnames.size()); i++) {
+    for (int i = 0; i < static_cast<int>(remote_entries.size()); i++) {
       const bool selected =
-          (remote_hostnames[i] == selected_server_remote_hostname_);
-      if (ImGui::Selectable(remote_hostnames[i].c_str(), selected)) {
-        selected_server_remote_hostname_ = remote_hostnames[i];
-        selected_server_remote_id_ =
-            find_remote_id_by_hostname(selected_server_remote_hostname_);
+          (remote_entries[i].first == selected_server_remote_id_);
+      if (ImGui::Selectable(remote_entries[i].second.c_str(), selected)) {
+        selected_server_remote_id_ = remote_entries[i].first;
+        selected_server_remote_hostname_ = remote_entries[i].second;
       }
       if (selected) {
         ImGui::SetItemDefaultFocus();

src/gui/windows/stream_window.cpp

@@ -31,6 +31,34 @@ void Render::DrawConnectionStatusText(
   }
 }
 
+void Render::DrawReceivingScreenText(
+    std::shared_ptr<SubStreamWindowProperties>& props) {
+  if (!props->connection_established_ ||
+      props->connection_status_ != ConnectionStatus::Connected) {
+    return;
+  }
+
+  bool has_valid_frame = false;
+  {
+    std::lock_guard<std::mutex> lock(props->video_frame_mutex_);
+    has_valid_frame = props->stream_texture_ != nullptr &&
+                      props->video_width_ > 0 && props->video_height_ > 0 &&
+                      props->front_frame_ && !props->front_frame_->empty();
+  }
+
+  if (has_valid_frame) {
+    return;
+  }
+
+  const std::string& text =
+      localization::receiving_screen[localization_language_index_];
+  ImVec2 size = ImGui::GetWindowSize();
+  ImVec2 text_size = ImGui::CalcTextSize(text.c_str());
+  ImGui::SetCursorPos(
+      ImVec2((size.x - text_size.x) * 0.5f, (size.y - text_size.y) * 0.5f));
+  ImGui::TextColored(ImVec4(1.0f, 1.0f, 1.0f, 0.92f), "%s", text.c_str());
+}
+
 void Render::CloseTab(decltype(client_properties_)::iterator& it) {
   // std::unique_lock lock(client_properties_mutex_);
   if (it != client_properties_.end()) {
@@ -144,6 +172,8 @@ int Render::StreamWindow() {
           // Show file transfer window if needed
           FileTransferWindow(props);
 
+          DrawReceivingScreenText(props);
+
           focused_remote_id_ = props->remote_id_;
 
           if (!props->peer_) {
@@ -244,6 +274,8 @@ int Render::StreamWindow() {
         // Show file transfer window if needed
         FileTransferWindow(props);
 
+        DrawReceivingScreenText(props);
+
         ImGui::End();
 
         if (!props->peer_) {