refactor(bar): use Gtk enums for position and orientation

Ensure that the position and the corresponding CSS class on window are
always set.

include/bar.hpp

@@ -62,7 +62,7 @@ class BarSurface {
   virtual void setLayer(bar_layer layer) = 0;
   virtual void setMargins(const struct bar_margins &margins) = 0;
   virtual void setPassThrough(bool enable) = 0;
-  virtual void setPosition(const std::string_view &position) = 0;
+  virtual void setPosition(Gtk::PositionType position) = 0;
   virtual void setSize(uint32_t width, uint32_t height) = 0;
   virtual void commit(){};
 
@@ -89,8 +89,9 @@ class Bar {
   Json::Value config;
   struct wl_surface *surface;
   bool visible = true;
-  bool vertical = false;
   Gtk::Window window;
+  Gtk::Orientation orientation = Gtk::ORIENTATION_HORIZONTAL;
+  Gtk::PositionType position = Gtk::POS_TOP;
 
   int x_global;
   int y_global;

src/bar.cpp

@@ -93,6 +93,32 @@ void from_json(const Json::Value& j, bar_mode& m) {
   }
 }
 
+/* Deserializer for enum Gtk::PositionType */
+void from_json(const Json::Value& j, Gtk::PositionType& pos) {
+  if (j == "left") {
+    pos = Gtk::POS_LEFT;
+  } else if (j == "right") {
+    pos = Gtk::POS_RIGHT;
+  } else if (j == "top") {
+    pos = Gtk::POS_TOP;
+  } else if (j == "bottom") {
+    pos = Gtk::POS_BOTTOM;
+  }
+}
+
+Glib::ustring to_string(Gtk::PositionType pos) {
+  switch (pos) {
+    case Gtk::POS_LEFT:
+      return "left";
+    case Gtk::POS_RIGHT:
+      return "right";
+    case Gtk::POS_TOP:
+      return "top";
+    case Gtk::POS_BOTTOM:
+      return "bottom";
+  }
+}
+
 /* Deserializer for JSON Object -> map<string compatible type, Value>
  * Assumes that all the values in the object are deserializable to the same type.
  */
@@ -158,18 +184,26 @@ struct GLSSurfaceImpl : public BarSurface, public sigc::trackable {
     }
   }
 
-  void setPosition(const std::string_view& position) override {
+  void setPosition(Gtk::PositionType position) override {
     auto unanchored = GTK_LAYER_SHELL_EDGE_BOTTOM;
-    vertical_ = false;
-    if (position == "bottom") {
-      unanchored = GTK_LAYER_SHELL_EDGE_TOP;
-    } else if (position == "left") {
-      unanchored = GTK_LAYER_SHELL_EDGE_RIGHT;
-      vertical_ = true;
-    } else if (position == "right") {
-      vertical_ = true;
-      unanchored = GTK_LAYER_SHELL_EDGE_LEFT;
-    }
+    orientation_ = Gtk::ORIENTATION_HORIZONTAL;
+    switch (position) {
+      case Gtk::POS_LEFT:
+        unanchored = GTK_LAYER_SHELL_EDGE_RIGHT;
+        orientation_ = Gtk::ORIENTATION_VERTICAL;
+        break;
+      case Gtk::POS_RIGHT:
+        unanchored = GTK_LAYER_SHELL_EDGE_LEFT;
+        orientation_ = Gtk::ORIENTATION_VERTICAL;
+        break;
+      case Gtk::POS_TOP:
+        unanchored = GTK_LAYER_SHELL_EDGE_BOTTOM;
+        break;
+      case Gtk::POS_BOTTOM:
+        unanchored = GTK_LAYER_SHELL_EDGE_TOP;
+        break;
+    };
+
     for (auto edge : {GTK_LAYER_SHELL_EDGE_LEFT, GTK_LAYER_SHELL_EDGE_RIGHT,
                       GTK_LAYER_SHELL_EDGE_TOP, GTK_LAYER_SHELL_EDGE_BOTTOM}) {
       gtk_layer_set_anchor(window_.gobj(), edge, unanchored != edge);
@@ -178,10 +212,10 @@ struct GLSSurfaceImpl : public BarSurface, public sigc::trackable {
     // Disable anchoring for other edges too if the width
     // or the height has been set to a value other than 'auto'
     // otherwise the bar will use all space
-    if (vertical_ && height_ > 1) {
+    if (orientation_ == Gtk::ORIENTATION_VERTICAL && height_ > 1) {
       gtk_layer_set_anchor(window_.gobj(), GTK_LAYER_SHELL_EDGE_BOTTOM, false);
       gtk_layer_set_anchor(window_.gobj(), GTK_LAYER_SHELL_EDGE_TOP, false);
-    } else if (!vertical_ && width_ > 1) {
+    } else if (orientation_ == Gtk::ORIENTATION_HORIZONTAL && width_ > 1) {
       gtk_layer_set_anchor(window_.gobj(), GTK_LAYER_SHELL_EDGE_LEFT, false);
       gtk_layer_set_anchor(window_.gobj(), GTK_LAYER_SHELL_EDGE_RIGHT, false);
     }
@@ -195,11 +229,11 @@ struct GLSSurfaceImpl : public BarSurface, public sigc::trackable {
 
  private:
   Gtk::Window& window_;
+  Gtk::Orientation orientation_ = Gtk::ORIENTATION_HORIZONTAL;
   std::string output_name_;
   uint32_t width_;
   uint32_t height_;
   bool passthrough_ = false;
-  bool vertical_ = false;
 
   void onMap(GdkEventAny* ev) { setPassThrough(passthrough_); }
 
@@ -212,7 +246,7 @@ struct GLSSurfaceImpl : public BarSurface, public sigc::trackable {
      * Note: forced resizing to a window smaller than required by GTK would not work with
      * gtk-layer-shell.
      */
-    if (vertical_) {
+    if (orientation_ == Gtk::ORIENTATION_VERTICAL) {
       if (width_ > 1 && ev->width > static_cast<int>(width_)) {
         spdlog::warn(MIN_WIDTH_MSG, width_, ev->width);
       }
@@ -304,15 +338,21 @@ struct RawSurfaceImpl : public BarSurface, public sigc::trackable {
     }
   }
 
-  void setPosition(const std::string_view& position) override {
-    anchor_ = HORIZONTAL_ANCHOR | ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP;
-    if (position == "bottom") {
-      anchor_ = HORIZONTAL_ANCHOR | ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM;
-    } else if (position == "left") {
-      anchor_ = VERTICAL_ANCHOR | ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT;
-    } else if (position == "right") {
-      anchor_ = VERTICAL_ANCHOR | ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
-    }
+  void setPosition(Gtk::PositionType position) override {
+    switch (position) {
+      case Gtk::POS_LEFT:
+        anchor_ = VERTICAL_ANCHOR | ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT;
+        break;
+      case Gtk::POS_RIGHT:
+        anchor_ = VERTICAL_ANCHOR | ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
+        break;
+      case Gtk::POS_TOP:
+        anchor_ = HORIZONTAL_ANCHOR | ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP;
+        break;
+      case Gtk::POS_BOTTOM:
+        anchor_ = HORIZONTAL_ANCHOR | ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM;
+        break;
+    };
 
     // updating already mapped window
     if (layer_surface_) {
@@ -493,17 +533,18 @@ waybar::Bar::Bar(struct waybar_output* w_output, const Json::Value& w_config)
   window.set_decorated(false);
   window.get_style_context()->add_class(output->name);
   window.get_style_context()->add_class(config["name"].asString());
-  window.get_style_context()->add_class(config["position"].asString());
 
-  auto position = config["position"].asString();
+  from_json(config["position"], position);
+  orientation = (position == Gtk::POS_LEFT || position == Gtk::POS_RIGHT)
+                    ? Gtk::ORIENTATION_VERTICAL
+                    : Gtk::ORIENTATION_HORIZONTAL;
 
-  if (position == "right" || position == "left") {
-    left_ = Gtk::Box(Gtk::ORIENTATION_VERTICAL, 0);
-    center_ = Gtk::Box(Gtk::ORIENTATION_VERTICAL, 0);
-    right_ = Gtk::Box(Gtk::ORIENTATION_VERTICAL, 0);
-    box_ = Gtk::Box(Gtk::ORIENTATION_VERTICAL, 0);
-    vertical = true;
-  }
+  window.get_style_context()->add_class(to_string(position));
+
+  left_ = Gtk::Box(orientation, 0);
+  center_ = Gtk::Box(orientation, 0);
+  right_ = Gtk::Box(orientation, 0);
+  box_ = Gtk::Box(orientation, 0);
 
   left_.get_style_context()->add_class("modules-left");
   center_.get_style_context()->add_class("modules-center");
@@ -829,34 +870,38 @@ void waybar::Bar::onConfigure(GdkEventConfigure* ev) {
 
 void waybar::Bar::configureGlobalOffset(int width, int height) {
   auto monitor_geometry = *output->monitor->property_geometry().get_value().gobj();
-  auto position = config["position"].asString();
   int x;
   int y;
-  if (position == "bottom") {
-    if (width + margins_.left + margins_.right >= monitor_geometry.width)
+  switch (position) {
+    case Gtk::POS_BOTTOM:
+      if (width + margins_.left + margins_.right >= monitor_geometry.width)
+        x = margins_.left;
+      else
+        x = (monitor_geometry.width - width) / 2;
+      y = monitor_geometry.height - height - margins_.bottom;
+      break;
+    case Gtk::POS_LEFT:
       x = margins_.left;
-    else
-      x = (monitor_geometry.width - width) / 2;
-    y = monitor_geometry.height - height - margins_.bottom;
-  } else if (position == "left") {
-    x = margins_.left;
-    if (height + margins_.top + margins_.bottom >= monitor_geometry.height)
-      y = margins_.top;
-    else
-      y = (monitor_geometry.height - height) / 2;
-  } else if (position == "right") {
-    x = monitor_geometry.width - width - margins_.right;
-    if (height + margins_.top + margins_.bottom >= monitor_geometry.height)
+      if (height + margins_.top + margins_.bottom >= monitor_geometry.height)
+        y = margins_.top;
+      else
+        y = (monitor_geometry.height - height) / 2;
+      break;
+    case Gtk::POS_RIGHT:
+      x = monitor_geometry.width - width - margins_.right;
+      if (height + margins_.top + margins_.bottom >= monitor_geometry.height)
+        y = margins_.top;
+      else
+        y = (monitor_geometry.height - height) / 2;
+      break;
+    case Gtk::POS_TOP:
+      // position is top
+      if (width + margins_.left + margins_.right >= monitor_geometry.width)
+        x = margins_.left;
+      else
+        x = (monitor_geometry.width - width) / 2;
       y = margins_.top;
-    else
-      y = (monitor_geometry.height - height) / 2;
-  } else {
-    // position is top
-    if (width + margins_.left + margins_.right >= monitor_geometry.width)
-      x = margins_.left;
-    else
-      x = (monitor_geometry.width - width) / 2;
-    y = margins_.top;
+      break;
   }
 
   x_global = x + monitor_geometry.x;

src/modules/dwl/tags.cpp

@@ -93,7 +93,7 @@ Tags::Tags(const std::string &id, const waybar::Bar &bar, const Json::Value &con
       status_manager_{nullptr},
       seat_{nullptr},
       bar_(bar),
-      box_{bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0},
+      box_{bar.orientation, 0},
       output_status_{nullptr} {
   struct wl_display *display = Client::inst()->wl_display;
   struct wl_registry *registry = wl_display_get_registry(display);

src/modules/hyprland/workspaces.cpp

@@ -34,9 +34,7 @@ int Workspaces::windowRewritePriorityFunction(std::string const &window_rule) {
 }
 
 Workspaces::Workspaces(const std::string &id, const Bar &bar, const Json::Value &config)
-    : AModule(config, "workspaces", id, false, false),
-      m_bar(bar),
-      m_box(bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0) {
+    : AModule(config, "workspaces", id, false, false), m_bar(bar), m_box(bar.orientation, 0) {
   modulesReady = true;
   parseConfig(config);
 

src/modules/keyboard_state.cpp

@@ -81,7 +81,7 @@ auto supportsLockStates(const libevdev* dev) -> bool {
 waybar::modules::KeyboardState::KeyboardState(const std::string& id, const Bar& bar,
                                               const Json::Value& config)
     : AModule(config, "keyboard-state", id, false, !config["disable-scroll"].asBool()),
-      box_(bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0),
+      box_(bar.orientation, 0),
       numlock_label_(""),
       capslock_label_(""),
       numlock_format_(config_["format"].isString() ? config_["format"].asString()

src/modules/river/tags.cpp

@@ -87,7 +87,7 @@ Tags::Tags(const std::string &id, const waybar::Bar &bar, const Json::Value &con
       control_{nullptr},
       seat_{nullptr},
       bar_(bar),
-      box_{bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0},
+      box_{bar.orientation, 0},
       output_status_{nullptr} {
   struct wl_display *display = Client::inst()->wl_display;
   struct wl_registry *registry = wl_display_get_registry(display);

src/modules/sni/tray.cpp

@@ -6,7 +6,7 @@ namespace waybar::modules::SNI {
 
 Tray::Tray(const std::string& id, const Bar& bar, const Json::Value& config)
     : AModule(config, "tray", id),
-      box_(bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0),
+      box_(bar.orientation, 0),
       watcher_(SNI::Watcher::getInstance()),
       host_(nb_hosts_, config, bar, std::bind(&Tray::onAdd, this, std::placeholders::_1),
             std::bind(&Tray::onRemove, this, std::placeholders::_1)) {

src/modules/sway/workspaces.cpp

@@ -27,7 +27,7 @@ int Workspaces::convertWorkspaceNameToNum(std::string name) {
 Workspaces::Workspaces(const std::string &id, const Bar &bar, const Json::Value &config)
     : AModule(config, "workspaces", id, false, !config["disable-scroll"].asBool()),
       bar_(bar),
-      box_(bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0) {
+      box_(bar.orientation, 0) {
   if (config["format-icons"]["high-priority-named"].isArray()) {
     for (auto &it : config["format-icons"]["high-priority-named"]) {
       high_priority_named_.push_back(it.asString());

src/modules/wlr/taskbar.cpp

@@ -277,7 +277,7 @@ Task::Task(const waybar::Bar &bar, const Json::Value &config, Taskbar *tbar,
       handle_{tl_handle},
       seat_{seat},
       id_{global_id++},
-      content_{bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0} {
+      content_{bar.orientation, 0} {
   zwlr_foreign_toplevel_handle_v1_add_listener(handle_, &toplevel_handle_impl, this);
 
   button.set_relief(Gtk::RELIEF_NONE);
@@ -730,7 +730,7 @@ static const wl_registry_listener registry_listener_impl = {.global = handle_glo
 Taskbar::Taskbar(const std::string &id, const waybar::Bar &bar, const Json::Value &config)
     : waybar::AModule(config, "taskbar", id, false, false),
       bar_(bar),
-      box_{bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0},
+      box_{bar.orientation, 0},
       manager_{nullptr},
       seat_{nullptr} {
   box_.set_name("taskbar");

src/modules/wlr/workspace_manager.cpp

@@ -21,9 +21,7 @@ std::map<std::string, std::string> Workspace::icons_map_;
 
 WorkspaceManager::WorkspaceManager(const std::string &id, const waybar::Bar &bar,
                                    const Json::Value &config)
-    : waybar::AModule(config, "workspaces", id, false, false),
-      bar_(bar),
-      box_(bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0) {
+    : waybar::AModule(config, "workspaces", id, false, false), bar_(bar), box_(bar.orientation, 0) {
   auto config_sort_by_name = config_["sort-by-name"];
   if (config_sort_by_name.isBool()) {
     sort_by_name_ = config_sort_by_name.asBool();