Provide unlock themeing (#5476)

default/elephant/omarchy_unlocks.lua

@@ -0,0 +1,92 @@
+--
+-- Dynamic Omarchy Unlocks Menu for Elephant/Walker
+--
+-- A "Default" entry restores the omarchy-shipped Plymouth via
+-- omarchy-plymouth-reset. After that, every theme that has a preview-unlock.png
+-- appears as a customised unlock; picking one runs omarchy-plymouth-set-by-theme
+-- <theme>. Both run in a floating terminal so sudo can prompt.
+--
+Name = "omarchyunlocks"
+NamePretty = "Omarchy Unlocks"
+HideFromProviderlist = true
+FixedOrder = true
+
+local function file_exists(path)
+  local f = io.open(path, "r")
+  if f then
+    f:close()
+    return true
+  end
+  return false
+end
+
+local function shell_escape(s)
+  return "'" .. s:gsub("'", "'\\''") .. "'"
+end
+
+function GetEntries()
+  local entries = {}
+  local home = os.getenv("HOME")
+  local user_themes_dir = home .. "/.config/omarchy/themes"
+  local omarchy_path = os.getenv("OMARCHY_PATH") or ""
+  local default_themes_dir = omarchy_path .. "/themes"
+  local default_preview = omarchy_path .. "/default/plymouth/preview-unlock.png"
+
+  local seen_themes = {}
+
+  local function process_themes_from_dir(themes_dir)
+    local handle = io.popen("find -L '" .. themes_dir .. "' -mindepth 1 -maxdepth 1 -type d 2>/dev/null")
+    if not handle then
+      return
+    end
+
+    for theme_path in handle:lines() do
+      local theme_name = theme_path:match(".*/(.+)$")
+
+      if theme_name and not seen_themes[theme_name] then
+        seen_themes[theme_name] = true
+
+        local preview_path = theme_path .. "/preview-unlock.png"
+
+        if file_exists(preview_path) then
+          local display_name = theme_name:gsub("_", " "):gsub("%-", " ")
+          display_name = display_name:gsub("(%a)([%w_']*)", function(first, rest)
+            return first:upper() .. rest:lower()
+          end)
+          display_name = display_name .. "  "
+
+          table.insert(entries, {
+            Text = display_name,
+            Preview = preview_path,
+            PreviewType = "file",
+            Actions = {
+              activate = "omarchy-launch-floating-terminal-with-presentation "
+                .. shell_escape("omarchy-plymouth-set-by-theme " .. shell_escape(theme_name)),
+            },
+          })
+        end
+      end
+    end
+
+    handle:close()
+  end
+
+  process_themes_from_dir(user_themes_dir)
+  process_themes_from_dir(default_themes_dir)
+
+  -- Default entry last — restores the shipped Plymouth.
+  local default_entry = {
+    Text = "Default  ",
+    Actions = {
+      activate = "omarchy-launch-floating-terminal-with-presentation "
+        .. shell_escape("omarchy-plymouth-reset"),
+    },
+  }
+  if file_exists(default_preview) then
+    default_entry.Preview = default_preview
+    default_entry.PreviewType = "file"
+  end
+  table.insert(entries, default_entry)
+
+  return entries
+end