refactor: avoid unneeded json parsing

include/modules/sway/ipc/client.hpp

@@ -9,7 +9,6 @@
 #include <memory>
 #include <mutex>
 #include "ipc.hpp"
-#include "util/json.hpp"
 
 namespace waybar::modules::sway {
 
@@ -21,7 +20,7 @@ class Ipc {
   struct ipc_response {
     uint32_t    size;
     uint32_t    type;
-    Json::Value payload;
+    std::string payload;
   };
 
   sigc::signal<void, const struct ipc_response &> signal_event;
@@ -44,8 +43,6 @@ class Ipc {
   int        fd_event_;
   std::mutex mutex_;
   std::mutex mutex_event_;
-  std::mutex       mutex_parser_;
-  util::JsonParser parser_;
 };
 
 }  // namespace waybar::modules::sway

include/modules/sway/mode.hpp

@@ -6,6 +6,7 @@
 #include "client.hpp"
 #include "modules/sway/ipc/client.hpp"
 #include "util/sleeper_thread.hpp"
+#include "util/json.hpp"
 
 namespace waybar::modules::sway {
 
@@ -22,6 +23,7 @@ class Mode : public ALabel {
   waybar::util::SleeperThread thread_;
   Ipc                         ipc_;
   std::string                 mode_;
+  util::JsonParser parser_;
 };
 
 }  // namespace waybar::modules::sway

include/modules/sway/window.hpp

@@ -7,6 +7,7 @@
 #include "client.hpp"
 #include "modules/sway/ipc/client.hpp"
 #include "util/sleeper_thread.hpp"
+#include "util/json.hpp"
 
 namespace waybar::modules::sway {
 
@@ -29,6 +30,7 @@ class Window : public ALabel {
   std::string                 window_;
   int                         windowId_;
   std::string                 app_id_;
+  util::JsonParser parser_;
 };
 
 }  // namespace waybar::modules::sway

include/modules/sway/workspaces.hpp

@@ -8,6 +8,7 @@
 #include "client.hpp"
 #include "modules/sway/ipc/client.hpp"
 #include "util/sleeper_thread.hpp"
+#include "util/json.hpp"
 
 namespace waybar::modules::sway {
 
@@ -38,6 +39,7 @@ class Workspaces : public IModule {
   std::mutex                                   mutex_;
   Gtk::Box                                     box_;
   Ipc                                          ipc_;
+  util::JsonParser                             parser_;
   bool                                         scrolling_;
   std::unordered_map<std::string, Gtk::Button> buttons_;
 };

src/modules/sway/ipc/client.cpp

@@ -104,9 +104,7 @@ struct Ipc::ipc_response Ipc::recv(int fd) {
     }
     total += res;
   }
-  std::lock_guard<std::mutex> lock(mutex_parser_);
+  return {data32[0], data32[1], &payload.front()};
-  auto parsed = parser_.parse(&payload.front());
-  return {data32[0], data32[1], parsed};
 }
 
 struct Ipc::ipc_response Ipc::send(int fd, uint32_t type, const std::string& payload) {
@@ -135,7 +133,7 @@ void Ipc::sendCmd(uint32_t type, const std::string& payload) {
 void Ipc::subscribe(const std::string& payload) {
   std::lock_guard<std::mutex> lock(mutex_event_);
   auto res = Ipc::send(fd_event_, IPC_SUBSCRIBE, payload);
-  if (!res.payload["success"].asBool()) {
+  if (res.payload != "{\"success\": true}") {
     throw std::runtime_error("Unable to subscribe ipc event");
   }
 }

src/modules/sway/mode.cpp

@@ -2,8 +2,7 @@
 
 namespace waybar::modules::sway {
 
-Mode::Mode(const std::string& id, const Json::Value& config)
+Mode::Mode(const std::string& id, const Json::Value& config) : ALabel(config, "{}") {
-    : ALabel(config, "{}") {
   label_.set_name("mode");
   if (!id.empty()) {
     label_.get_style_context()->add_class(id);
@@ -16,8 +15,9 @@ Mode::Mode(const std::string& id, const Json::Value& config)
 }
 
 void Mode::onEvent(const struct Ipc::ipc_response& res) {
-  if (res.payload["change"] != "default") {
+  auto payload = parser_.parse(res.payload);
-    mode_ = res.payload["change"].asString();
+  if (payload["change"] != "default") {
+    mode_ = payload["change"].asString();
   } else {
     mode_.clear();
   }

src/modules/sway/window.cpp

@@ -21,18 +21,11 @@ Window::Window(const std::string& id, const Bar& bar, const Json::Value& config)
   worker();
 }
 
-void Window::onEvent(const struct Ipc::ipc_response& res) {
+void Window::onEvent(const struct Ipc::ipc_response& res) { getTree(); }
-  auto data = res.payload;
-  // Check for waybar prevents flicker when hovering window module
-  if (((data["change"] == "focus" || data["change"] == "title") &&
-       data["container"]["focused"].asBool() && data["container"]["name"].asString() != "waybar") ||
-      data["change"] == "close") {
-    getTree();
-  }
-}
 
 void Window::onCmd(const struct Ipc::ipc_response& res) {
-  auto [nb, id, name, app_id] = getFocusedNode(res.payload);
+  auto payload = parser_.parse(res.payload);
+  auto [nb, id, name, app_id] = getFocusedNode(payload);
   if (!app_id_.empty()) {
     bar_.window.get_style_context()->remove_class(app_id_);
   }

src/modules/sway/workspaces.cpp

@@ -23,11 +23,12 @@ void Workspaces::onEvent(const struct Ipc::ipc_response &res) { ipc_.sendCmd(IPC
 
 void Workspaces::onCmd(const struct Ipc::ipc_response &res) {
   if (res.type == IPC_GET_WORKSPACES) {
-    if (res.payload.isArray()) {
+    auto payload = parser_.parse(res.payload);
+    if (payload.isArray()) {
       std::lock_guard<std::mutex> lock(mutex_);
       workspaces_.clear();
-      std::copy_if(res.payload.begin(),
+      std::copy_if(payload.begin(),
-                   res.payload.end(),
+                   payload.end(),
                    std::back_inserter(workspaces_),
                    [&](const auto &workspace) {
                      return !config_["all-outputs"].asBool()