Add module sway/hide for auto-showing the bar when the modifier is pr…

…essed

Closes Alexays#255

Setup instructions:
- Set the *mode* of the bar to "hide" in sway configuration file
- Set the *layer* of the bar to "overlay" in Waybar configuration file
- Add "sway/hide" into *modules-left* -list in Waybar configuration file

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
 #ifndef NO_FILESYSTEM
 #include "modules/battery.hpp"

include/modules/sway/hide.hpp

@@ -0,0 +1,33 @@
+#pragma once
+
+#include <fmt/format.h>
+#include <tuple>
+#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();
+
+ const Bar& bar_;
+ std::string window_;
+ int windowId_;
+ util::JsonParser parser_;
+
+ util::SleeperThread thread_;
+ Ipc ipc_;
+};
+
+} // namespace waybar::modules::sway

meson.build

@@ -102,7 +102,8 @@ if true # find_program('sway', required : false).found()
  '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'
  ]
 endif
 

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
  if (ref == "idle_inhibitor") {
  return new waybar::modules::IdleInhibitor(id, bar_, config_[name]);

src/modules/sway/hide.cpp

@@ -0,0 +1,38 @@
+#include "modules/sway/hide.hpp"
+#include <spdlog/spdlog.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"])");
+ ipc_.signal_event.connect(sigc::mem_fun(*this, &Hide::onEvent));
+ bar_.window.get_style_context()->add_class("hidden");
+ // Launch worker
+ worker();
+}
+
+void Hide::onEvent(const struct Ipc::ipc_response& res) {
+
+ auto payload = parser_.parse(res.payload);
+ if (payload.isMember("visible_by_modifier")) {
+ if (payload["visible_by_modifier"].asBool())
+ bar_.window.get_style_context()->remove_class("hidden");
+ else
+ bar_.window.get_style_context()->add_class("hidden");
+ }
+}
+
+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