feat: configure interchangeable top and bottom bars

src/ruby_config.rb

@@ -12,11 +12,77 @@ module Vamp
     name
   end
 
+  # @param value [Hash{String, Symbol => Object}]
+  # @return [Hash{String => Object}]
+  def self.chrome_hash!(value)
+    raise TypeError, "chrome options must be a Hash" unless value.is_a?(Hash)
+    value.each_with_object({}) do |(key, item), result|
+      key = key.to_s if key.is_a?(Symbol)
+      key = string!(key, "chrome key")
+      raise ArgumentError, "duplicate chrome key: #{key}" if result.key?(key)
+      result[key] = item
+    end
+  end
+
+  # @param options [Hash{String, Symbol => Object}]
+  # @return [Hash{String => Object}]
+  def self.chrome_line!(options)
+    chrome_hash!(options).to_h do |name, value|
+      if %w[left center right].include?(name)
+        raise TypeError, "#{name} must be an Array" unless value.is_a?(Array)
+        [name, value.map { |item| chrome_name!(item) }]
+      else
+        chrome_name!(name)
+        style = chrome_hash!(value).to_h do |option, item|
+          case option
+          when "padding"
+            unless item.is_a?(Integer) && item.between?(0, 64)
+              raise ArgumentError, "padding must be an Integer between 0 and 64"
+            end
+          when "title", "leading_edge", "trailing_edge", "first_leading_edge"
+            item = string!(item, option)
+          else
+            raise ArgumentError, "unknown chrome style option: #{option}"
+          end
+          [option, item]
+        end
+        [name, style]
+      end
+    end
+  end
+
+  # Collects options for the independently configured top and bottom bars.
+  class BarConfig
+    # @return [Hash{String => Object}]
+    attr_reader :top, :bottom
+
+    # @return [void]
+    def initialize
+      @top = {}
+      @bottom = {}
+    end
+
+    # @param options [Hash{String, Symbol => Object}]
+    # @return [Hash{String => Object}]
+    def top=(options)
+      @top = Vamp.chrome_line!(options)
+    end
+
+    # @param options [Hash{String, Symbol => Object}]
+    # @return [Hash{String => Object}]
+    def bottom=(options)
+      @bottom = Vamp.chrome_line!(options)
+    end
+  end
+
   # Collects and validates the Ruby startup configuration DSL.
   class Config
     # @return [Hash{String => Boolean, Hash{String, Symbol => Object}}] language presets/options
     attr_reader :lsp
 
+    # @return [Vamp::BarConfig]
+    attr_reader :bar
+
     # @return [void]
     def initialize
       @plugins = []
@@ -27,8 +93,7 @@ module Vamp
       @file_picker_view = "tree"
       @file_explorer_view = "tree"
       @clipboard_mode = "system"
-      @tabline = {}
-      @statusline = {}
+      @bar = BarConfig.new
       @labels = {}
       @diff_context_lines = 10
       @diff_expand_lines = 15
@@ -76,22 +141,10 @@ module Vamp
       @clipboard_mode = nonempty_string!(mode, "clipboard mode")
     end
 
-    # @param options [Hash{String, Symbol => Object}]
-    # @return [Hash]
-    def tabline=(options)
-      @tabline = chrome_line!(options)
-    end
-
-    # @param options [Hash{String, Symbol => Object}]
-    # @return [Hash]
-    def statusline=(options)
-      @statusline = chrome_line!(options)
-    end
-
     # @param values [Hash{String, Symbol => String}]
     # @return [Hash]
     def labels=(values)
-      @labels = chrome_hash!(values).to_h do |name, text|
+      @labels = Vamp.chrome_hash!(values).to_h do |name, text|
         [Vamp.chrome_name!(name), Vamp.string!(text, "label text")]
       end
     end
@@ -139,51 +192,11 @@ module Vamp
       { "version" => 1, "type" => "config", "plugins" => @plugins, "lsp" => lsp_options, "bindings" => @bindings,
         "leader" => @leader, "file_explorer_side" => @file_explorer_side, "file_picker_view" => @file_picker_view,
         "file_explorer_view" => @file_explorer_view, "clipboard_mode" => @clipboard_mode,
-        "tabline" => @tabline, "statusline" => @statusline, "labels" => @labels,
+        "top_bar" => @bar.top, "bottom_bar" => @bar.bottom, "labels" => @labels,
         "diff_context_lines" => @diff_context_lines, "diff_expand_lines" => @diff_expand_lines }
     end
 
     private
-    # @param value [Hash{String, Symbol => Object}]
-    # @return [Hash{String => Object}]
-    def chrome_hash!(value)
-      raise TypeError, "chrome options must be a Hash" unless value.is_a?(Hash)
-      value.each_with_object({}) do |(key, item), result|
-        key = key.to_s if key.is_a?(Symbol)
-        key = Vamp.string!(key, "chrome key")
-        raise ArgumentError, "duplicate chrome key: #{key}" if result.key?(key)
-        result[key] = item
-      end
-    end
-
-    # @param options [Hash{String, Symbol => Object}]
-    # @return [Hash{String => Object}]
-    def chrome_line!(options)
-      chrome_hash!(options).to_h do |name, value|
-        if %w[left center right].include?(name)
-          raise TypeError, "#{name} must be an Array" unless value.is_a?(Array)
-          [name, value.map { |item| Vamp.chrome_name!(item) }]
-        else
-          Vamp.chrome_name!(name)
-          style = chrome_hash!(value).to_h do |option, item|
-            case option
-            when "padding"
-              unless item.is_a?(Integer) && item.between?(0, 64)
-                raise ArgumentError, "padding must be an Integer between 0 and 64"
-              end
-            when "title", "leading_edge", "trailing_edge", "first_leading_edge"
-              item = Vamp.string!(item, option)
-            else
-              raise ArgumentError, "unknown chrome style option: #{option}"
-            end
-            [option, item]
-          end
-          [name, style]
-        end
-      end
-    end
-
-
     # @param value [Integer]
     # @param label [String]
     # @param minimum [Integer]