Add module "sway/hide" for swaybar integration

include/bar.hpp

@@ -30,6 +30,7 @@ class Bar {
   ~Bar() = default;
 
   auto toggle() -> void;
+  auto setVisible(bool) -> void;
   void handleSignal(int);
 
   struct waybar_output *output;

include/factory.hpp

@@ -6,6 +6,7 @@
 #include "modules/sway/mode.hpp"
 #include "modules/sway/window.hpp"
 #include "modules/sway/workspaces.hpp"
+#include "modules/sway/hide.hpp"
 #endif
 #ifdef HAVE_WLR
 #include "modules/wlr/taskbar.hpp"

include/modules/sway/hide.hpp

@@ -0,0 +1,37 @@
+#pragma once
+
+#include <fmt/format.h>
+#include <tuple>
+#include <mutex>
+#include "ALabel.hpp"
+#include "bar.hpp"
+#include "client.hpp"
+#include "modules/sway/ipc/client.hpp"
+#include "util/json.hpp"
+#include "util/sleeper_thread.hpp"
+
+namespace waybar::modules::sway {
+
+class Hide : public ALabel, public sigc::trackable {
+ public:
+  Hide(const std::string&, const waybar::Bar&, const Json::Value&);
+  ~Hide() = default;
+  auto update() -> void;
+
+ private:
+  void onEvent(const struct Ipc::ipc_response&);
+  void worker();
+
+  std::string      current_mode_;
+  bool             visible_by_modifier_;
+  const Bar&       bar_;
+  std::string      window_;
+  int              windowId_;
+  util::JsonParser parser_;
+
+  util::SleeperThread thread_;
+  std::mutex          mutex_;
+  Ipc                 ipc_;
+};
+
+}  // namespace waybar::modules::sway

meson.build

@@ -158,7 +158,8 @@ src_files += [
     'src/modules/sway/ipc/client.cpp',
     'src/modules/sway/mode.cpp',
     'src/modules/sway/window.cpp',
-    'src/modules/sway/workspaces.cpp'
+    'src/modules/sway/workspaces.cpp',
+    'src/modules/sway/hide.cpp',
 ]
 
 if true

src/bar.cpp

@@ -389,8 +389,8 @@ void waybar::Bar::layerSurfaceHandleClosed(void* data, struct zwlr_layer_surface
   o->modules_right_.clear();
 }
 
-auto waybar::Bar::toggle() -> void {
-  visible = !visible;
+auto waybar::Bar::setVisible(bool nvis) -> void {
+  visible = nvis;
   if (!visible) {
     window.get_style_context()->add_class("hidden");
     window.set_opacity(0);
@@ -404,6 +404,10 @@ auto waybar::Bar::toggle() -> void {
   }
 }
 
+auto waybar::Bar::toggle() -> void {
+  return setVisible(!visible);
+}
+
 void waybar::Bar::getModules(const Factory& factory, const std::string& pos) {
   if (config[pos].isArray()) {
     for (const auto& name : config[pos]) {

src/factory.cpp

@@ -22,6 +22,9 @@ waybar::AModule* waybar::Factory::makeModule(const std::string& name) const {
     if (ref == "sway/window") {
       return new waybar::modules::sway::Window(id, bar_, config_[name]);
     }
+    if (ref == "sway/hide") {
+      return new waybar::modules::sway::Hide(id, bar_, config_[name]);
+    }
 #endif
 #ifdef HAVE_WLR
     if (ref == "wlr/taskbar") {

src/modules/sway/hide.cpp

@@ -0,0 +1,50 @@
+#include "modules/sway/hide.hpp"
+#include <spdlog/spdlog.h>
+#include "client.hpp"
+#include "wlr-layer-shell-unstable-v1-client-protocol.h"
+
+namespace waybar::modules::sway {
+
+Hide::Hide(const std::string& id, const Bar& bar, const Json::Value& config)
+    : ALabel(config, "hide", id, "{}", 0, true), bar_(bar), windowId_(-1) {
+  ipc_.subscribe(R"(["bar_state_update","barconfig_update"])");
+  ipc_.signal_event.connect(sigc::mem_fun(*this, &Hide::onEvent));
+  // Launch worker
+  worker();
+}
+
+void Hide::onEvent(const struct Ipc::ipc_response& res) {
+  auto payload = parser_.parse(res.payload);
+  std::lock_guard<std::mutex> lock(mutex_);
+  if (payload.isMember("mode")) {
+    // barconfig_update: get mode
+    auto mode = payload["mode"].asString();
+    if (mode == "hide") {
+      // Hide the bars when configuring the "hide" bar
+      for (auto& bar : waybar::Client::inst()->bars) {
+        bar->setVisible(false);
+      }
+    }
+  } else if (payload.isMember("visible_by_modifier")) {
+    // bar_state_update: get visible_by_modifier
+    visible_by_modifier_ = payload["visible_by_modifier"].asBool();
+    spdlog::info("WayBar Shown: {}", visible_by_modifier_);
+    for (auto& bar : waybar::Client::inst()->bars) {
+      bar->setVisible(visible_by_modifier_);
+    }
+  }
+}
+
+void Hide::worker() {
+  thread_ = [this] {
+    try {
+      ipc_.handleEvent();
+    } catch (const std::exception& e) {
+      spdlog::error("Hide: {}", e.what());
+    }
+  };
+}
+
+auto Hide::update() -> void {
+}
+}  // namespace waybar::modules::sway