chore: 0.2.0

add option for when filesystem still lives in the experimental namespace

.gitignore

@@ -4,7 +4,7 @@ vgcore.*
 /.vscode
 *.swp
 packagecache
-/subprojects/fmt-4.1.0
+/subprojects/**/
 /build
 /dist
 /meson.egg-info

include/ALabel.hpp

@@ -12,15 +12,19 @@ class ALabel : public IModule {
   virtual auto update() -> void;
   virtual std::string getIcon(uint16_t, const std::string& alt = "");
   virtual operator Gtk::Widget&();
+
  protected:
   Gtk::EventBox event_box_;
   Gtk::Label label_;
   const Json::Value& config_;
   std::string format_;
+  std::mutex mutex_;
+
  private:
   bool handleToggle(GdkEventButton* const& ev);
+  bool handleScroll(GdkEventScroll*);
   bool alt = false;
   const std::string default_format_;
 };
 
-}
+}  // namespace waybar

include/factory.hpp

@@ -3,6 +3,7 @@
 #include <json/json.h>
 #include "modules/clock.hpp"
 #ifdef HAVE_SWAY
+#include "modules/sway/mode.hpp"
 #include "modules/sway/workspaces.hpp"
 #include "modules/sway/window.hpp"
 #endif

include/modules/battery.hpp

@@ -1,6 +1,10 @@
 #pragma once
 
+#ifdef FILESYSTEM_EXPERIMENTAL
+  #include <experimental/filesystem>
+#else
   #include <filesystem>
+#endif
 #include <fstream>
 #include <iostream>
 #include <fmt/format.h>
@@ -11,7 +15,11 @@
 
 namespace waybar::modules {
 
+#ifdef FILESYSTEM_EXPERIMENTAL
+namespace fs = std::experimental::filesystem;
+#else
 namespace fs = std::filesystem;
+#endif
 
 class Battery : public ALabel {
   public:
@@ -22,11 +30,14 @@ class Battery : public ALabel {
     static inline const fs::path data_dir_ = "/sys/class/power_supply/";
   
     void worker();
+    std::tuple<uint16_t, std::string> getInfos();
+    std::string getState(uint16_t);
 
     util::SleeperThread thread_;
     util::SleeperThread threadTimer_;
     std::vector<fs::path> batteries_;
     int fd_;
+    std::string old_status_;
 };
 
 }

include/modules/custom.hpp

@@ -4,6 +4,7 @@
 #include <iostream>
 #include "util/chrono.hpp"
 #include "util/command.hpp"
+#include "util/json.hpp"
 #include "ALabel.hpp"
 
 namespace waybar::modules {
@@ -15,10 +16,17 @@ class Custom : public ALabel {
   private:
     void delayWorker();
     void continuousWorker();
+    void parseOutputRaw();
+    void parseOutputJson();
 
     const std::string name_;
+    std::string text_;
+    std::string tooltip_;
+    std::string class_;
+    std::string prevclass_;
     waybar::util::SleeperThread thread_;
     waybar::util::command::res output_;
+    waybar::util::JsonParser parser_;
 };
 
 }

include/modules/pulseaudio.hpp

@@ -1,7 +1,8 @@
 #pragma once
 
-#include <pulse/pulseaudio.h>
 #include <fmt/format.h>
+#include <pulse/pulseaudio.h>
+#include <pulse/volume.h>
 #include <algorithm>
 #include "ALabel.hpp"
 
@@ -18,6 +19,8 @@ class Pulseaudio : public ALabel {
     static void contextStateCb(pa_context*, void*);
     static void sinkInfoCb(pa_context*, const pa_sink_info*, int, void*);
     static void serverInfoCb(pa_context*, const pa_server_info*, void*);
+    static void volumeModifyCb(pa_context*, int, void*);
+    bool handleScroll(GdkEventScroll* e);
 
     const std::string getPortIcon() const;
 
@@ -26,9 +29,11 @@ class Pulseaudio : public ALabel {
     pa_context* context_;
     uint32_t sink_idx_{0};
     uint16_t volume_;
+    pa_cvolume pa_volume_;
     bool muted_;
     std::string port_name_;
     std::string desc_;
+    bool scrolling_;
 };
 
-}
+}  // namespace waybar::modules

include/modules/sni/sni.hpp

@@ -3,7 +3,11 @@
 #include <dbus-status-notifier-item.h>
 #include <gtkmm.h>
 #include <json/json.h>
+#ifdef FILESYSTEM_EXPERIMENTAL
+  #include <experimental/filesystem>
+#else
   #include <filesystem>
+#endif
 
 namespace waybar::modules::SNI {
 

include/modules/sway/mode.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <fmt/format.h>
+#include "bar.hpp"
+#include "client.hpp"
+#include "util/chrono.hpp"
+#include "util/json.hpp"
+#include "ALabel.hpp"
+#include "modules/sway/ipc/client.hpp"
+
+namespace waybar::modules::sway {
+
+class Mode : public ALabel {
+  public:
+    Mode(waybar::Bar&, const Json::Value&);
+    auto update() -> void;
+  private:
+    void worker();
+    
+    Bar& bar_;
+    waybar::util::SleeperThread thread_;
+    util::JsonParser parser_;
+    Ipc ipc_;
+    std::string mode_;
+};
+
+}

include/util/command.hpp

@@ -32,4 +32,20 @@ inline struct res exec(const std::string cmd)
   return {exit_code, output};
 }
 
+inline bool forkExec(std::string cmd) {
+  if (cmd == "") return true;
+
+  int32_t pid = fork();
+
+  if (pid < 0) {
+    printf("Unable to exec cmd %s, error %s", cmd.c_str(), strerror(errno));
+    return false;
   }
+
+  // Child executes the command
+  if (!pid) execl("/bin/sh", "sh", "-c", cmd.c_str(), (char*)0);
+
+  return true;
+}
+
+}  // namespace waybar::util::command

meson.build

@@ -1,6 +1,6 @@
 project(
     'waybar', 'cpp', 'c',
-    version: '0.1.3',
+    version: '0.2.0',
     license: 'MIT',
     default_options : [
         'cpp_std=c++17',
@@ -57,6 +57,7 @@ if find_program('sway', required : false).found()
     add_project_arguments('-DHAVE_SWAY', language: 'cpp')
     src_files += [
         'src/modules/sway/ipc/client.cpp',
+        'src/modules/sway/mode.cpp',
         'src/modules/sway/window.cpp',
         'src/modules/sway/workspaces.cpp'
     ]
@@ -82,6 +83,12 @@ if dbusmenu_gtk.found()
     )
 endif
 
+compiler = meson.get_compiler('cpp')
+
+if not compiler.has_header('filesystem')
+    add_project_arguments('-DFILESYSTEM_EXPERIMENTAL', language: 'cpp')
+endif
+
 subdir('protocol')
 
 executable(

protocol/meson.build

@@ -38,6 +38,36 @@ endforeach
 
 gdbus_codegen = find_program('gdbus-codegen')
 
+r = run_command(gdbus_codegen, '--body', '--output', '/dev/null')
+if r.returncode() != 0
+  gdbus_code_dsnw = custom_target(
+      'dbus-status-notifier-watcher.[ch]',
+      output: ['@BASENAME@.c','@BASENAME@.h'],
+      input: './dbus-status-notifier-watcher.xml',
+      command: [gdbus_codegen,'--c-namespace', 'Sn', '--generate-c-code', 'protocol/@BASENAME@', '@INPUT@'],
+  )
+
+  gdbus_code_dsni = custom_target(
+      'dbus-status-notifier-item.[ch]',
+      output: ['@BASENAME@.c','@BASENAME@.h'],
+      input: './dbus-status-notifier-item.xml',
+      command: [gdbus_codegen,'--c-namespace', 'Sn', '--generate-c-code', 'protocol/@BASENAME@', '@INPUT@'],
+  )
+
+  gdbus_code_dm = custom_target(
+      'dbus-menu.[ch]',
+      output: ['@BASENAME@.c','@BASENAME@.h'],
+      input: './dbus-menu.xml',
+      command: [gdbus_codegen,'--c-namespace', 'Sn', '--generate-c-code', 'protocol/@BASENAME@', '@INPUT@'],
+  )
+
+  client_protos_src += gdbus_code_dsnw[0]
+  client_protos_headers += gdbus_code_dsnw[1]
+  client_protos_src += gdbus_code_dsni[0]
+  client_protos_headers += gdbus_code_dsni[1]
+  client_protos_src += gdbus_code_dm[0]
+  client_protos_headers += gdbus_code_dm[1]
+else
   gdbus_code = generator(
       gdbus_codegen,
       output: '@BASENAME@.c',
@@ -58,6 +88,8 @@ client_protos_headers += gdbus_header.process('./dbus-status-notifier-item.xml')
 
   client_protos_src += gdbus_code.process('./dbus-menu.xml')
   client_protos_headers += gdbus_header.process('./dbus-menu.xml')
+endif
+
 
 lib_client_protos = static_library(
 	'client_protos',

resources/config

@@ -4,7 +4,7 @@
     // "height": 30, // Waybar height
     // "width": 1280, // Waybar width
     // Choose the order of the modules
-    "modules-left": ["sway/workspaces", "custom/spotify"],
+    "modules-left": ["sway/workspaces", "sway/mode", "custom/spotify"],
     "modules-center": ["sway/window"],
     "modules-right": ["pulseaudio", "network", "cpu", "memory", "battery", "battery#bat2", "clock", "tray"],
     // Modules configuration
@@ -23,6 +23,9 @@
     //         "default": ""
     //     }
     // },
+    "sway/mode": {
+        "format": "{}"
+    },
     "sway/window": {
         "max-length": 50
     },
@@ -40,7 +43,14 @@
         "format": "{}% "
     },
     "battery": {
+        "states": {
+            // "good": 95,
+            "warning": 30,
+            "critical": 15
+        },
         "format": "{capacity}% {icon}",
+        // "format-good": "", // An empty format will hide the module
+        // "format-full": "",
         "format-icons": ["", "", "", "", ""]
     },
     "battery#bat2": {
@@ -64,13 +74,14 @@
             "portable": "",
             "car": "",
             "default": ["", ""]
-        }
+        },
+        "on-click": "pavucontrol"
     },
     "custom/spotify": {
         "format": " {}",
         "max-length": 40,
         "interval": 30, // Remove this if your script is endless and write in loop
-        "exec": "$HOME/.config/waybar/mediaplayer.sh", // Script in resources folder
+        "exec": "$HOME/.config/waybar/mediaplayer.sh 2> /dev/null", // Script in resources folder
         "exec-if": "pgrep spotify"
     }
 }

resources/style.css

@@ -3,6 +3,7 @@
     border-radius: 0;
     font-family: Roboto, Helvetica, Arial, sans-serif;
     font-size: 13px;
+    min-height: 0;
 }
 
 window#waybar {
@@ -23,7 +24,12 @@ window#waybar {
     border-bottom: 3px solid white;
 }
 
-#clock, #battery, #cpu, #memory, #network, #pulseaudio, #custom-spotify, #tray {
+#mode {
+    background: #64727D;
+    border-bottom: 3px solid white;
+}
+
+#clock, #battery, #cpu, #memory, #network, #pulseaudio, #custom-spotify, #tray, #mode {
     padding: 0 10px;
     margin: 0 5px;
 }
@@ -49,7 +55,7 @@ window#waybar {
     }
 }
 
-#battery.warning {
+#battery.warning:not(.charging) {
     background: #f53c3c;
     color: white;
     animation-name: blink;

src/ALabel.cpp

@@ -1,4 +1,5 @@
 #include "ALabel.hpp"
+#include <util/command.hpp>
 
 #include <iostream>
 
@@ -14,30 +15,81 @@ waybar::ALabel::ALabel(const Json::Value& config, const std::string format)
   }
   if (config_["format-alt"].isString()) {
     event_box_.add_events(Gdk::BUTTON_PRESS_MASK);
-    event_box_.signal_button_press_event()
+    event_box_.signal_button_press_event().connect(
-      .connect(sigc::mem_fun(*this, &ALabel::handleToggle));
+        sigc::mem_fun(*this, &ALabel::handleToggle));
+  }
+
+  // configure events' user commands
+  if (config_["on-click"].isString()) {
+    event_box_.add_events(Gdk::BUTTON_PRESS_MASK);
+    event_box_.signal_button_press_event().connect(
+      sigc::mem_fun(*this, &ALabel::handleToggle));
+  }
+  if (config_["on-scroll-up"].isString()) {
+    event_box_.add_events(Gdk::SCROLL_MASK);
+    event_box_.signal_scroll_event().connect(
+      sigc::mem_fun(*this, &ALabel::handleScroll));
+  }
+  if (config_["on-scroll-down"].isString()) {
+    event_box_.add_events(Gdk::SCROLL_MASK);
+    event_box_.signal_scroll_event().connect(
+      sigc::mem_fun(*this, &ALabel::handleScroll));
   }
 }
 
-auto waybar::ALabel::update() -> void
+auto waybar::ALabel::update() -> void {
-{
   // Nothing here
 }
 
-bool waybar::ALabel::handleToggle(GdkEventButton* const& /*ev*/)
+bool waybar::ALabel::handleToggle(GdkEventButton* const& e) {
-{
+  if (config_["on-click"].isString() && e->button == 1) {
+    waybar::util::command::forkExec(config_["on-click"].asString());
+  } else {
     alt = !alt;
     if (alt) {
       format_ = config_["format-alt"].asString();
     } else {
       format_ = default_format_;
     }
+  }
+
   dp.emit();
   return true;
 }
 
-std::string waybar::ALabel::getIcon(uint16_t percentage, const std::string& alt)
+bool waybar::ALabel::handleScroll(GdkEventScroll* e) {
-{
+
+  // Avoid concurrent scroll event
+  std::lock_guard<std::mutex> lock(mutex_);
+  bool direction_up = false;
+
+  if (e->direction == GDK_SCROLL_UP) {
+    direction_up = true;
+  }
+  if (e->direction == GDK_SCROLL_DOWN) {
+    direction_up = false;
+  }
+  if (e->direction == GDK_SCROLL_SMOOTH) {
+    gdouble delta_x, delta_y;
+    gdk_event_get_scroll_deltas(reinterpret_cast<const GdkEvent*>(e),
+                                &delta_x, &delta_y);
+    if (delta_y < 0) {
+      direction_up = true;
+    } else if (delta_y > 0) {
+      direction_up = false;
+    }
+  }
+  if (direction_up && config_["on-scroll-up"].isString()) {
+    waybar::util::command::forkExec(config_["on-scroll-up"].asString());
+  } else if (config_["on-scroll-down"].isString()) {
+    waybar::util::command::forkExec(config_["on-scroll-down"].asString());
+  }
+  dp.emit();
+  return true;
+}
+
+std::string waybar::ALabel::getIcon(uint16_t percentage,
+                                    const std::string& alt) {
   auto format_icons = config_["format-icons"];
   if (format_icons.isObject()) {
     if (!alt.empty() && format_icons[alt].isString()) {
@@ -57,6 +109,4 @@ std::string waybar::ALabel::getIcon(uint16_t percentage, const std::string& alt)
   return "";
 }
 
-waybar::ALabel::operator Gtk::Widget &() {
+waybar::ALabel::operator Gtk::Widget&() { return event_box_; }
-  return event_box_;
-}

src/bar.cpp

@@ -20,16 +20,15 @@ waybar::Bar::Bar(const Client& client,
     zxdg_output_manager_v1_get_xdg_output(client.xdg_output_manager, *output);
 	zxdg_output_v1_add_listener(xdg_output_, &xdgOutputListener, this);
   window.set_title("waybar");
-  window.set_decorated(false);
   window.set_name("waybar");
+  window.set_decorated(false);
   window.set_resizable(false);
   setupConfig();
   setupCss();
-  setupWidgets();
 
-  Gtk::Widget& wrap(window);
+  auto wrap = reinterpret_cast<GtkWidget*>(window.gobj());
-  gtk_widget_realize(wrap.gobj());
+  gtk_widget_realize(wrap);
-  GdkWindow *gdk_window = gtk_widget_get_window(wrap.gobj());
+  GdkWindow *gdk_window = gtk_widget_get_window(wrap);
   gdk_wayland_window_set_use_custom_surface(gdk_window);
   surface = gdk_wayland_window_get_wl_surface(gdk_window);
 
@@ -60,6 +59,8 @@ waybar::Bar::Bar(const Client& client,
   zwlr_layer_surface_v1_set_size(layer_surface, width, height);
 
   wl_surface_commit(surface);
+
+  setupWidgets();
 }
 
 void waybar::Bar::handleLogicalPosition(void* /*data*/,
@@ -104,11 +105,20 @@ void waybar::Bar::layerSurfaceHandleConfigure(void* data,
   if (width != o->width_ || height != o->height_) {
     o->width_ = width;
     o->height_ = height;
+    o->window.set_size_request(o->width_, o->height_);
+    o->window.resize(o->width_, o->height_);
+
+    int dummy_width, min_height;
+    o->window.get_size(dummy_width, min_height);
+    if (o->height_ < static_cast<uint32_t>(min_height)) {
+      std::cout << fmt::format("Requested height: {} exceeds the minimum \
+height: {} required by the modules", o->height_, min_height) << std::endl;
+      o->height_ = min_height;
+    }
     std::cout << fmt::format(
       "Bar configured (width: {}, height: {}) for output: {}",
       o->width_, o->height_, o->output_name) << std::endl;
-    o->window.set_size_request(o->width_, o->height_);
+
-    o->window.resize(o->width_, o->height_);
     zwlr_layer_surface_v1_set_exclusive_zone(surface, o->height_);
     zwlr_layer_surface_v1_set_size(surface, o->width_, o->height_);
     wl_surface_commit(o->surface);

src/factory.cpp

@@ -12,6 +12,9 @@ waybar::IModule* waybar::Factory::makeModule(const std::string &name) const
       return new waybar::modules::Battery(config_[name]);
     }
     #ifdef HAVE_SWAY
+    if (ref == "sway/mode") {
+      return new waybar::modules::sway::Mode(bar_, config_[name]);
+    }
     if (ref == "sway/workspaces") {
       return new waybar::modules::sway::Workspaces(bar_, config_[name]);
     }

src/modules/battery.cpp

@@ -34,7 +34,6 @@ waybar::modules::Battery::Battery(const Json::Value& config)
   for (auto const& bat : batteries_) {
     inotify_add_watch(fd_, (bat / "uevent").c_str(), IN_ACCESS);
   }
-  label_.set_name("battery");
   worker();
 }
 
@@ -63,11 +62,11 @@ void waybar::modules::Battery::worker()
   };
 }
 
-auto waybar::modules::Battery::update() -> void
+std::tuple<uint16_t, std::string> waybar::modules::Battery::getInfos()
 {
   try {
     uint16_t total = 0;
-    std::string status;
+    std::string status = "Unknown";
     for (auto const& bat : batteries_) {
       uint16_t capacity;
       std::string _status;
@@ -79,22 +78,64 @@ auto waybar::modules::Battery::update() -> void
       total += capacity;
     }
     uint16_t capacity = total / batteries_.size();
-    label_.set_text(fmt::format(format_, fmt::arg("capacity", capacity),
+    return {capacity, status};
-      fmt::arg("icon", getIcon(capacity))));
-    label_.set_tooltip_text(status);
-    bool charging = status == "Charging";
-    if (charging) {
-      label_.get_style_context()->add_class("charging");
-    } else {
-      label_.get_style_context()->remove_class("charging");
-    }
-    auto critical = config_["critical"].isUInt() ? config_["critical"].asUInt() : 15;
-    if (capacity <= critical && !charging) {
-      label_.get_style_context()->add_class("warning");
-    } else {
-      label_.get_style_context()->remove_class("warning");
-    }
   } catch (const std::exception& e) {
     std::cerr << e.what() << std::endl;
+    return {0, "Unknown"};
+  }
+}
+
+std::string waybar::modules::Battery::getState(uint16_t capacity)
+{
+  // Get current state
+  std::vector<std::pair<std::string, uint16_t>> states;
+  if (config_["states"].isObject()) {
+    for (auto it = config_["states"].begin(); it != config_["states"].end(); ++it) {
+      if (it->isUInt() && it.key().isString()) {
+        states.push_back({it.key().asString(), it->asUInt()});
+      }
+    }
+  }
+  // Sort states
+  std::sort(states.begin(), states.end(), [](auto &a, auto &b) {
+    return a.second < b.second;
+  });
+  std::string validState = "";
+  for (auto state : states) {
+    if (capacity <= state.second && validState.empty()) {
+      label_.get_style_context()->add_class(state.first);
+      validState = state.first;
+    } else {
+      label_.get_style_context()->remove_class(state.first);
+    }
+  }
+  return validState;
+}
+
+auto waybar::modules::Battery::update() -> void
+{
+  auto [capacity, status] = getInfos();
+  label_.set_tooltip_text(status);
+  std::transform(status.begin(), status.end(), status.begin(), ::tolower);
+  auto format = format_;
+  auto state = getState(capacity);
+  label_.get_style_context()->remove_class(old_status_);
+  label_.get_style_context()->add_class(status);
+  old_status_ = status;
+  if (!state.empty() && config_["format-" + status + "-" + state].isString()) {
+    format = config_["format-" + status + "-" + state].asString();
+  } else if (config_["format-" + status].isString()) {
+    format = config_["format-" + status].asString();
+  } else if (!state.empty() && config_["format-" + state].isString()) {
+    format = config_["format-" + state].asString();
+  }
+  if (format.empty()) {
+    event_box_.hide();
+    label_.set_name("");
+  } else {
+    event_box_.show();
+    label_.set_name("battery");
+    label_.set_text(fmt::format(format, fmt::arg("capacity", capacity),
+      fmt::arg("icon", getIcon(capacity))));
   }
 }

src/modules/custom.cpp

@@ -72,9 +72,65 @@ auto waybar::modules::Custom::update() -> void
     label_.set_name("");
   } else {
     label_.set_name("custom-" + name_);
-    auto str = fmt::format(format_, output_.out);
+
+    if (config_["return-type"].asString() == "json") {
+      parseOutputJson();
+    } else {
+      parseOutputRaw();
+    }
+
+    auto str = fmt::format(format_, text_);
     label_.set_text(str);
+    if (text_ == tooltip_) {
       label_.set_tooltip_text(str);
+    } else {
+      label_.set_tooltip_text(tooltip_);
+    }
+    if (class_ != "") {
+      if (prevclass_ != "") {
+        label_.get_style_context()->remove_class(prevclass_);
+      }
+      label_.get_style_context()->add_class(class_);
+      prevclass_ = class_;
+    } else {
+      label_.get_style_context()->remove_class(prevclass_);
+      prevclass_ = "";
+    }
+
     label_.show();
   }
 }
+
+void waybar::modules::Custom::parseOutputRaw()
+{
+  std::istringstream output(output_.out);
+  std::string line;
+  int i = 0;
+  while (getline(output, line)) {
+    if (i == 0) {
+      text_ = line;
+      tooltip_ = line;
+      class_ = "";
+    } else if (i == 1) {
+      tooltip_ = line;
+    } else if (i == 2) {
+      class_ = line;
+    } else {
+      break;
+    }
+    i++;
+  }
+}
+
+void waybar::modules::Custom::parseOutputJson()
+{
+  std::istringstream output(output_.out);
+  std::string line;
+  while (getline(output, line)) {
+    auto parsed = parser_.parse(line);
+    text_ = parsed["text"].asString();
+    tooltip_ = parsed["tooltip"].asString();
+    class_ = parsed["class"].asString();
+    break;
+  }
+}

src/modules/pulseaudio.cpp

@@ -1,9 +1,14 @@
 #include "modules/pulseaudio.hpp"
 
 waybar::modules::Pulseaudio::Pulseaudio(const Json::Value &config)
-  : ALabel(config, "{volume}%"), mainloop_(nullptr), mainloop_api_(nullptr),
+    : ALabel(config, "{volume}%"),
-    context_(nullptr), sink_idx_(0), volume_(0), muted_(false)
+      mainloop_(nullptr),
-{
+      mainloop_api_(nullptr),
+      context_(nullptr),
+      sink_idx_(0),
+      volume_(0),
+      muted_(false),
+      scrolling_(false) {
   label_.set_name("pulseaudio");
   mainloop_ = pa_threaded_mainloop_new();
   if (mainloop_ == nullptr) {
@@ -26,10 +31,18 @@ waybar::modules::Pulseaudio::Pulseaudio(const Json::Value& config)
     throw std::runtime_error("pa_mainloop_run() failed.");
   }
   pa_threaded_mainloop_unlock(mainloop_);
+
+  // define the pulse scroll events only when no user provided
+  // events are configured
+  if (!config["on-scroll-up"].isString() &&
+      !config["on-scroll-down"].isString()) {
+    event_box_.add_events(Gdk::SCROLL_MASK);
+    event_box_.signal_scroll_event().connect(
+        sigc::mem_fun(*this, &Pulseaudio::handleScroll));
+  }
 }
 
-waybar::modules::Pulseaudio::~Pulseaudio()
+waybar::modules::Pulseaudio::~Pulseaudio() {
-{
   mainloop_api_->quit(mainloop_api_, 0);
   pa_threaded_mainloop_stop(mainloop_);
   pa_threaded_mainloop_free(mainloop_);
@@ -58,6 +71,47 @@ void waybar::modules::Pulseaudio::contextStateCb(pa_context *c, void *data)
   }
 }
 
+bool waybar::modules::Pulseaudio::handleScroll(GdkEventScroll *e) {
+  // Avoid concurrent scroll event
+  bool direction_up = false;
+  // XXX/TODO: Change of 100 corresponds to 1%, does that always hold true?
+  uint16_t change = 100;
+  pa_cvolume pa_volume = pa_volume_;
+
+  if (scrolling_) {
+    return false;
+  }
+  scrolling_ = true;
+  if (e->direction == GDK_SCROLL_UP) {
+    direction_up = true;
+  }
+  if (e->direction == GDK_SCROLL_DOWN) {
+    direction_up = false;
+  }
+
+  if (e->direction == GDK_SCROLL_SMOOTH) {
+    gdouble delta_x, delta_y;
+    gdk_event_get_scroll_deltas(reinterpret_cast<const GdkEvent *>(e), &delta_x,
+                                &delta_y);
+    if (delta_y < 0) {
+      direction_up = true;
+    } else if (delta_y > 0) {
+      direction_up = false;
+    }
+  }
+
+  if (direction_up) {
+    if (volume_ + 1 < 100) pa_cvolume_inc(&pa_volume, change);
+  } else {
+    if (volume_ - 1 > 0) pa_cvolume_dec(&pa_volume, change);
+  }
+
+  pa_context_set_sink_volume_by_index(context_, sink_idx_, &pa_volume,
+                                      volumeModifyCb, this);
+
+  return true;
+}
+
 /*
  * Called when an event we subscribed to occurs.
  */
@@ -75,16 +129,29 @@ void waybar::modules::Pulseaudio::subscribeCb(pa_context* context,
   }
 }
 
+/*
+ * Called in response to a volume change request
+ */
+void waybar::modules::Pulseaudio::volumeModifyCb(pa_context *c, int success,
+                                                 void *data) {
+  auto pa = static_cast<waybar::modules::Pulseaudio *>(data);
+  if (success) {
+    pa_context_get_sink_info_by_index(pa->context_, pa->sink_idx_, sinkInfoCb,
+                                      data);
+  }
+}
+
 /*
  * Called when the requested sink information is ready.
  */
 void waybar::modules::Pulseaudio::sinkInfoCb(pa_context * /*context*/,
-  const pa_sink_info* i, int /*eol*/, void* data)
+                                             const pa_sink_info *i, int /*eol*/,
-{
+                                             void *data) {
   if (i != nullptr) {
     auto pa = static_cast<waybar::modules::Pulseaudio *>(data);
-    float volume = static_cast<float>(pa_cvolume_avg(&(i->volume)))
+    pa->pa_volume_ = i->volume;
-      / float{PA_VOLUME_NORM};
+    float volume = static_cast<float>(pa_cvolume_avg(&(pa->pa_volume_))) /
+                   float{PA_VOLUME_NORM};
     pa->sink_idx_ = i->index;
     pa->volume_ = std::round(volume * 100.0f);
     pa->muted_ = i->mute != 0;
@@ -141,8 +208,11 @@ auto waybar::modules::Pulseaudio::update() -> void
     label_.get_style_context()->remove_class("muted");
     label_.get_style_context()->add_class("bluetooth");
   }
-  label_.set_label(fmt::format(format,
+  label_.set_label(
-    fmt::arg("volume", volume_),
+      fmt::format(format, fmt::arg("volume", volume_),
                   fmt::arg("icon", getIcon(volume_, getPortIcon()))));
   label_.set_tooltip_text(desc_);
+  if (scrolling_) {
+    scrolling_ = false;
+  }
 }

src/modules/sni/snh.cpp

@@ -33,6 +33,7 @@ void Host::nameAppeared(GDBusConnection* connection,
   auto host = static_cast<SNI::Host *>(data);
   if (host->cancellable_ != nullptr) {
     // TODO
+    return;
   }
   host->cancellable_ = g_cancellable_new();
   sn_watcher_proxy_new(

src/modules/sni/sni.cpp

@@ -7,7 +7,8 @@ waybar::modules::SNI::Item::Item(std::string bn, std::string op,
   Glib::Dispatcher *dp, Json::Value config)
     : bus_name(bn), object_path(op), event_box(), icon_size(16),
       effective_icon_size(0), image(Gtk::manage(new Gtk::Image())),
-      dp_(dp), config_(config) {
+      dp_(dp), config_(config)
+{
   if (config_["icon-size"].isUInt()) {
     icon_size = config_["icon-size"].asUInt();
   }
@@ -172,10 +173,12 @@ waybar::modules::SNI::Item::extractPixBuf(GVariant *variant) {
 void waybar::modules::SNI::Item::updateMenu()
 {
   event_box.set_tooltip_text(title);
-  if (!menu.empty()) {
+  if (gtk_menu == nullptr && !menu.empty()) {
-    auto *dbmenu = dbusmenu_gtkmenu_new(bus_name.data(), menu.data());
+    auto dbmenu = dbusmenu_gtkmenu_new(bus_name.data(), menu.data());
-    if (dbmenu) {
+    if (dbmenu != nullptr) {
+      g_object_ref_sink(dbmenu);
       gtk_menu = Glib::wrap(GTK_MENU(dbmenu), false);
+      gtk_menu->attach_to_widget(event_box);
     }
   }
 }
@@ -187,7 +190,11 @@ void waybar::modules::SNI::Item::updateImage()
   if (!icon_name.empty()) {
     try {
       // Try to find icons specified by path and filename
+#ifdef FILESYSTEM_EXPERIMENTAL
+      if (std::experimental::filesystem::exists(icon_name)) {
+#else
       if (std::filesystem::exists(icon_name)) {
+#endif
         auto pixbuf = Gdk::Pixbuf::create_from_file(icon_name);
         if (pixbuf->gobj() != nullptr) {
           // An icon specified by path and filename may be the wrong size for
@@ -248,11 +255,15 @@ void waybar::modules::SNI::Item::handleSecondaryActivate(GObject *src,
 
 bool waybar::modules::SNI::Item::handleClick(GdkEventButton *const &ev) {
   if (ev->type == GDK_BUTTON_PRESS) {
-    if (gtk_menu) {
+    if (gtk_menu && gtk_menu->get_children().size() > 0) {
-      if (!gtk_menu->get_attach_widget()) {
+      #if GTK_CHECK_VERSION(3, 22, 0)
-        gtk_menu->attach_to_widget(event_box);
+      gtk_menu->popup_at_widget(reinterpret_cast<Gtk::Widget*>(&event_box),
-      }
+        Gdk::GRAVITY_NORTH_WEST, Gdk::GRAVITY_NORTH_WEST,
+        reinterpret_cast<GdkEvent*>(ev));
+      #else
       gtk_menu->popup(ev->button, ev->time);
+      #endif
+      gtk_menu->set_state_flags(Gtk::STATE_FLAG_ACTIVE, false);
     } else {
       sn_item_call_activate(
           proxy_, ev->x, ev->y, nullptr, &Item::handleActivate, this);

src/modules/sni/tray.cpp

@@ -5,6 +5,7 @@
 waybar::modules::SNI::Tray::Tray(const Json::Value &config)
     : config_(config), watcher_(), host_(&dp, config)
 {
+  std::cout << "Tray is in beta, so there may be bugs or even be unusable." << std::endl;
   if (config_["spacing"].isUInt()) {
     box_.set_spacing(config_["spacing"].asUInt());
   }

src/modules/sway/mode.cpp

@@ -0,0 +1,43 @@
+#include "modules/sway/mode.hpp"
+
+waybar::modules::sway::Mode::Mode(Bar& bar, const Json::Value& config)
+  : ALabel(config, "{}"), bar_(bar)
+{
+  ipc_.connect();
+  ipc_.subscribe("[ \"mode\" ]");
+  // Launch worker
+  worker();
+}
+
+void waybar::modules::sway::Mode::worker()
+{
+  thread_ = [this] {
+    try {
+      auto res = ipc_.handleEvent();
+      auto parsed = parser_.parse(res.payload);
+      if ((parsed["change"]) != "default" ) {
+        mode_ = parsed["change"].asString();
+        dp.emit();
+      }
+      else if ((parsed["change"]) == "default" ) {
+        mode_.clear();
+        dp.emit();
+      }
+    } catch (const std::exception& e) {
+      std::cerr << e.what() << std::endl;
+    }
+  };
+}
+
+auto waybar::modules::sway::Mode::update() -> void
+{
+  if (mode_.empty()) {
+    label_.set_name("");
+    label_.hide();
+  } else {
+    label_.set_name("mode");
+    label_.set_text(fmt::format(format_, mode_));
+    label_.set_tooltip_text(mode_);
+    label_.show();
+  }
+}

src/modules/sway/window.cpp

@@ -5,7 +5,7 @@ waybar::modules::sway::Window::Window(Bar &bar, const Json::Value& config)
 {
   label_.set_name("window");
   ipc_.connect();
-  ipc_.subscribe("[ \"window\" ]");
+  ipc_.subscribe("[\"window\",\"workspace\"]");
   getFocusedWindow();
   // Launch worker
   worker();
@@ -22,9 +22,11 @@ void waybar::modules::sway::Window::worker()
         window_ = parsed["container"]["name"].asString();
         windowId_ = parsed["container"]["id"].asInt();
         dp.emit();
-      } else if (parsed["change"] == "close"
+      } else if ((parsed["change"] == "close"
         && parsed["container"]["focused"].asBool()
-        && windowId_ == parsed["container"]["id"].asInt()) {
+        && windowId_ == parsed["container"]["id"].asInt())
+        || (parsed["change"] == "focus" && parsed["current"]["focus"].isArray()
+        && parsed["current"]["focus"].empty())) {
         window_.clear();
         windowId_ = -1;
         dp.emit();

subprojects/fmtlib.wrap

@@ -1,10 +1,10 @@
 [wrap-file]
-directory = fmt-4.1.0
+directory = fmt-5.2.0
 
-source_url = https://github.com/fmtlib/fmt/archive/4.1.0.tar.gz
+source_url = https://github.com/fmtlib/fmt/archive/5.2.0.tar.gz
-source_filename = fmt-4.1.0.tar.gz
+source_filename = fmt-5.2.0.tar.gz
-source_hash = 46628a2f068d0e33c716be0ed9dcae4370242df135aed663a180b9fd8e36733d
+source_hash = b0e8c71a8fb906123966686f788e83cd95ae499afe9c25ff6284f624488435ac
 
-patch_url = https://wrapdb.mesonbuild.com/v1/projects/fmt/4.1.0/1/get_zip
+patch_url = https://wrapdb.mesonbuild.com/v1/projects/fmt/5.2.0/1/get_zip
-patch_filename = fmt-4.1.0-1-wrap.zip
+patch_filename = fmt-5.2.0-1-wrap.zip
-patch_hash = 741931f01e558491724fc1c67bff996d1df79c0277626fc463de138052c9ecc0
+patch_hash = 04005310ad939bc640ca0eb918e6b5390dbd5b5cb9d58636eb7c442306aa14cd