feat: default explorer to compact directory tree

src/ruby_host.rb

@@ -38,7 +38,7 @@ module Vamp
   end
 
   module Modes
-    %w[normal insert command search visual selection].each do |name|
+    %w[normal insert command search visual selection tree].each do |name|
       mode = Mode.new(name.freeze).freeze
       define_singleton_method(name) { mode }
     end
@@ -53,6 +53,8 @@ module Vamp
       @bindings = []
       @leader = "space"
       @file_explorer_side = "right"
+      @file_picker_view = "list"
+      @file_explorer_view = "tree"
     end
 
     def plugin(path)
@@ -74,6 +76,18 @@ module Vamp
       @file_explorer_side = side
     end
 
+    def file_picker_view=(view)
+      view = Vamp.string!(view, "file picker view")
+      raise ArgumentError, "file picker view must not be empty" if view.empty?
+      @file_picker_view = view
+    end
+
+    def file_explorer_view=(view)
+      view = Vamp.string!(view, "file explorer view")
+      raise ArgumentError, "file explorer view must not be empty" if view.empty?
+      @file_explorer_view = view
+    end
+
     def core
       Core
     end
@@ -106,7 +120,9 @@ module Vamp
     def response
       { "version" => 1, "type" => "config", "plugins" => @plugins,
         "bindings" => @bindings, "leader" => @leader,
-        "file_explorer_side" => @file_explorer_side }
+        "file_explorer_side" => @file_explorer_side,
+        "file_picker_view" => @file_picker_view,
+        "file_explorer_view" => @file_explorer_view }
     end
   end