From 2c2901e8f70a8391399c2f5b4d35aaaddb1566a7 Mon Sep 17 00:00:00 2001
From: vdermichev <v.dermichev@gmail.com>
Date: Fri, 27 Mar 2026 23:34:34 +0100
Subject: [PATCH] hyprland/workspaces: expose workspace name as CSS class
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Enable per-workspace styling by adding the workspace name as a
CSS class to each workspace button. The name is sanitized to a
valid CSS identifier: lowercased, non-alphanumeric characters
collapsed to hyphens, digit-leading names prefixed with "ws-".

Examples: "IDE" → .ide, "special:telegram" → .telegram, "1" → .ws-1

Allows users to style individual workspaces:
  #workspaces button.telegram { color: #54a0e0; }
---
 include/modules/hyprland/workspace.hpp |  1 +
 src/modules/hyprland/workspace.cpp     | 40 ++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/include/modules/hyprland/workspace.hpp b/include/modules/hyprland/workspace.hpp
index 1d80d331..fb06fc72 100644
--- a/include/modules/hyprland/workspace.hpp
+++ b/include/modules/hyprland/workspace.hpp
@@ -71,6 +71,7 @@ class Workspace {
 
   int m_id;
   std::string m_name;
+  std::string m_prevNameClass;
   std::string m_output;
   uint m_windows;
   bool m_isActive = false;
diff --git a/src/modules/hyprland/workspace.cpp b/src/modules/hyprland/workspace.cpp
index 21e7ef9b..02f03008 100644
--- a/src/modules/hyprland/workspace.cpp
+++ b/src/modules/hyprland/workspace.cpp
@@ -1,6 +1,7 @@
 #include <json/value.h>
 #include <spdlog/spdlog.h>
 
+#include <cctype>
 #include <memory>
 #include <string>
 #include <utility>
@@ -9,6 +10,33 @@
 #include "util/command.hpp"
 #include "util/icon_loader.hpp"
 
+namespace {
+constexpr std::string_view kCssClassPrefix = "ws-";
+
+// Convert a workspace name to a valid CSS class name.
+// Lowercases, replaces non-alphanumeric runs with single hyphens,
+// and prefixes digit-leading names (CSS classes can't start with a digit).
+std::string sanitizeCssClass(const std::string& name) {
+  std::string result;
+  result.reserve(name.size() + kCssClassPrefix.size());
+  for (auto c : name) {
+    auto uc = static_cast<unsigned char>(c);
+    if (std::isalnum(uc)) {
+      result += static_cast<char>(std::tolower(uc));
+    } else if (!result.empty() && result.back() != '-') {
+      result += '-';
+    }
+  }
+  if (!result.empty() && result.back() == '-') {
+    result.pop_back();
+  }
+  if (!result.empty() && std::isdigit(static_cast<unsigned char>(result.front()))) {
+    result.insert(0, kCssClassPrefix);
+  }
+  return result;
+}
+}  // namespace
+
 namespace waybar::modules::hyprland {
 
 Workspace::Workspace(const Json::Value& workspace_data, Workspaces& workspace_manager,
@@ -209,6 +237,7 @@ std::string& Workspace::selectIcon(std::map<std::string, std::string>& icons_map
   return m_name;
 }
 
+
 void Workspace::update(const std::string& workspace_icon) {
   if (this->m_workspaceManager.persistentOnly() && !this->isPersistent()) {
     m_button.hide();
@@ -240,6 +269,17 @@ void Workspace::update(const std::string& workspace_icon) {
   addOrRemoveClass(styleContext, isVisible(), "visible");
   addOrRemoveClass(styleContext, m_workspaceManager.getBarOutput() == output(), "hosting-monitor");
 
+  // Add workspace name as CSS class for per-workspace styling
+  if (!m_prevNameClass.empty()) {
+    styleContext->remove_class(m_prevNameClass);
+    m_prevNameClass.clear();
+  }
+  auto nameClass = sanitizeCssClass(name());
+  if (!nameClass.empty()) {
+    styleContext->add_class(nameClass);
+    m_prevNameClass = nameClass;
+  }
+
   std::string windows;
   // Optimization: The {windows} substitution string is only possible if the taskbar is disabled, no
   // need to compute this if enableTaskbar() is true