feat(sway): add focused window name

include/modules/sway/ipc/client.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <iostream>
+#include "ipc.hpp"
+
+/**
+ * IPC response including type of IPC response, size of payload and the json
+ * encoded payload string.
+ */
+struct ipc_response {
+	uint32_t size;
+	uint32_t type;
+	std::string payload;
+};
+
+/**
+ * Gets the path to the IPC socket from sway.
+ */
+std::string get_socketpath(void);
+/**
+ * Opens the sway socket.
+ */
+int ipc_open_socket(std::string socket_path);
+/**
+ * Issues a single IPC command and returns the buffer. len will be updated with
+ * the length of the buffer returned from sway.
+ */
+std::string ipc_single_command(int socketfd, uint32_t type, const char *payload, uint32_t *len);
+/**
+ * Receives a single IPC response and returns an ipc_response.
+ */
+struct ipc_response ipc_recv_response(int socketfd);

include/modules/sway/ipc/ipc.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#define event_mask(ev) (1 << (ev & 0x7F))
+
+enum ipc_command_type {
+	// i3 command types - see i3's I3_REPLY_TYPE constants
+	IPC_COMMAND = 0,
+	IPC_GET_WORKSPACES = 1,
+	IPC_SUBSCRIBE = 2,
+	IPC_GET_OUTPUTS = 3,
+	IPC_GET_TREE = 4,
+	IPC_GET_MARKS = 5,
+	IPC_GET_BAR_CONFIG = 6,
+	IPC_GET_VERSION = 7,
+	IPC_GET_BINDING_MODES = 8,
+	IPC_GET_CONFIG = 9,
+	IPC_SEND_TICK = 10,
+
+	// sway-specific command types
+	IPC_GET_INPUTS = 100,
+	IPC_GET_SEATS = 101,
+
+	// Events sent from sway to clients. Events have the highest bits set.
+	IPC_EVENT_WORKSPACE = ((1<<31) | 0),
+	IPC_EVENT_OUTPUT = ((1<<31) | 1),
+	IPC_EVENT_MODE = ((1<<31) | 2),
+	IPC_EVENT_WINDOW = ((1<<31) | 3),
+	IPC_EVENT_BARCONFIG_UPDATE = ((1<<31) | 4),
+	IPC_EVENT_BINDING = ((1<<31) | 5),
+	IPC_EVENT_SHUTDOWN = ((1<<31) | 6),
+	IPC_EVENT_TICK = ((1<<31) | 7),
+};

include/modules/sway/window.hpp

@@ -0,0 +1,30 @@
+#pragma once
+
+#include <fmt/format.h>
+#include "bar.hpp"
+#include "client.hpp"
+#include "util/chrono.hpp"
+#include "util/json.hpp"
+#include "IModule.hpp"
+
+namespace waybar::modules::sway {
+
+  class Window : public IModule {
+    public:
+      Window(waybar::Bar &bar, Json::Value config);
+      auto update() -> void;
+      operator Gtk::Widget &();
+    private:
+      std::string _getFocusedNode(Json::Value nodes);
+      void _getFocusedWindow();
+      Bar &_bar;
+      Json::Value _config;
+      waybar::util::SleeperThread _thread;
+      Gtk::Label _label;
+      util::JsonParser _parser;
+      int _ipcfd;
+      int _ipcEventfd;
+      std::string _window;
+  };
+
+}

include/modules/sway/workspaces.hpp

@@ -7,7 +7,7 @@
 #include "util/json.hpp"
 #include "IModule.hpp"
 
-namespace waybar::modules {
+namespace waybar::modules::sway {
 
   class Workspaces : public IModule {
     public:
@@ -17,7 +17,6 @@ namespace waybar::modules {
     private:
       void _addWorkspace(Json::Value node);
       std::string _getIcon(std::string name);
-      Json::Value _getWorkspaces(const std::string data);
       bool _handleScroll(GdkEventScroll *e);
       int _getPrevWorkspace();
       int _getNextWorkspace();