Class: RuVim::Editor

Inherits:
Object
  • Object
show all
Defined in:
lib/ruvim/editor.rb

Constant Summary collapse

OPTION_DEFS = 
{
  "number" => { default_scope: :window, type: :bool, default: false },
  "relativenumber" => { default_scope: :window, type: :bool, default: false },
  "wrap" => { default_scope: :window, type: :bool, default: true },
  "linebreak" => { default_scope: :window, type: :bool, default: false },
  "breakindent" => { default_scope: :window, type: :bool, default: false },
  "cursorline" => { default_scope: :window, type: :bool, default: false },
  "scrolloff" => { default_scope: :window, type: :int, default: 0 },
  "sidescrolloff" => { default_scope: :window, type: :int, default: 0 },
  "numberwidth" => { default_scope: :window, type: :int, default: 4 },
  "colorcolumn" => { default_scope: :window, type: :string, default: nil },
  "signcolumn" => { default_scope: :window, type: :string, default: "auto" },
  "list" => { default_scope: :window, type: :bool, default: false },
  "listchars" => { default_scope: :window, type: :string, default: "tab:>-,trail:-,nbsp:+" },
  "showbreak" => { default_scope: :window, type: :string, default: ">" },
  "showmatch" => { default_scope: :global, type: :bool, default: false },
  "matchtime" => { default_scope: :global, type: :int, default: 5 },
  "whichwrap" => { default_scope: :global, type: :string, default: "" },
  "virtualedit" => { default_scope: :global, type: :string, default: "" },
  "ignorecase" => { default_scope: :global, type: :bool, default: false },
  "smartcase" => { default_scope: :global, type: :bool, default: false },
  "hlsearch" => { default_scope: :global, type: :bool, default: true },
  "incsearch" => { default_scope: :global, type: :bool, default: false },
  "splitbelow" => { default_scope: :global, type: :bool, default: false },
  "splitright" => { default_scope: :global, type: :bool, default: false },
  "hidden" => { default_scope: :global, type: :bool, default: false },
  "autowrite" => { default_scope: :global, type: :bool, default: false },
  "clipboard" => { default_scope: :global, type: :string, default: "" },
  "timeoutlen" => { default_scope: :global, type: :int, default: 1000 },
  "ttimeoutlen" => { default_scope: :global, type: :int, default: 50 },
  "backspace" => { default_scope: :global, type: :string, default: "indent,eol,start" },
  "completeopt" => { default_scope: :global, type: :string, default: "menu,menuone,noselect" },
  "pumheight" => { default_scope: :global, type: :int, default: 10 },
  "wildmode" => { default_scope: :global, type: :string, default: "full" },
  "wildignore" => { default_scope: :global, type: :string, default: "" },
  "wildignorecase" => { default_scope: :global, type: :bool, default: false },
  "wildmenu" => { default_scope: :global, type: :bool, default: false },
  "termguicolors" => { default_scope: :global, type: :bool, default: false },
  "path" => { default_scope: :buffer, type: :string, default: nil },
  "suffixesadd" => { default_scope: :buffer, type: :string, default: nil },
  "textwidth" => { default_scope: :buffer, type: :int, default: 0 },
  "formatoptions" => { default_scope: :buffer, type: :string, default: nil },
  "expandtab" => { default_scope: :buffer, type: :bool, default: false },
  "shiftwidth" => { default_scope: :buffer, type: :int, default: 2 },
  "softtabstop" => { default_scope: :buffer, type: :int, default: 0 },
  "autoindent" => { default_scope: :buffer, type: :bool, default: true },
  "smartindent" => { default_scope: :buffer, type: :bool, default: true },
  "iskeyword" => { default_scope: :buffer, type: :string, default: nil },
  "tabstop" => { default_scope: :buffer, type: :int, default: 2 },
  "filetype" => { default_scope: :buffer, type: :string, default: nil },
  "onsavehook" => { default_scope: :buffer, type: :bool, default: true },
  "grepprg" => { default_scope: :global, type: :string, default: "grep -nH" },
  "grepformat" => { default_scope: :global, type: :string, default: "%f:%l:%m" },
  "runprg" => { default_scope: :buffer, type: :string, default: nil }
}.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Editor

Returns a new instance of Editor.



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# File 'lib/ruvim/editor.rb', line 64

def initialize
  @buffers = {}
  @windows = {}
  @layout_tree = nil
  @tabpages = []
  @current_tabpage_index = nil
  @next_tabpage_id = 1
  @suspend_tab_autosave = false
  @next_buffer_id = 1
  @next_window_id = 1
  @current_window_id = nil
  @alternate_buffer_id = nil
  @mode = :normal
  @message = ""
  @message_kind = :info
  @message_deadline = nil
  @pending_count = nil
  @restricted_mode = false
  @current_window_view_height_hint = 1
  @running = true
  @open_path_handler = nil
  @keymap_manager = nil
  @app_action_handler = nil
  @global_options = default_global_options
  @command_line = CommandLine.new
  @last_search = nil
  @hlsearch_suppressed = false
  @last_find = nil
  @registers = {}
  @active_register_name = nil
  @local_marks = Hash.new { |h, k| h[k] = {} }
  @global_marks = {}
  @jumplist = []
  @jump_index = nil
  @macros = {}
  @macro_recording = nil
  @visual_state = nil
  @rich_state = nil
  @quickfix_list = { items: [], index: nil }
  @location_lists = Hash.new { |h, k| h[k] = { items: [], index: nil } }
  @arglist = []
  @arglist_index = 0
  @hit_enter_lines = nil
  @run_history = {}  # buffer_id => last run command (unexpanded)
  @run_output_buffer_id = nil
end

Instance Attribute Details

#alternate_buffer_id ⇒ Object

Returns the value of attribute alternate_buffer_id.



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# File 'lib/ruvim/editor.rb', line 62

def alternate_buffer_id
  @alternate_buffer_id
end

#app_action_handler ⇒ Object

Returns the value of attribute app_action_handler.



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# File 'lib/ruvim/editor.rb', line 62

def app_action_handler
  @app_action_handler
end

#buffers ⇒ Object (readonly)

Returns the value of attribute buffers.



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# File 'lib/ruvim/editor.rb', line 61

def buffers
  @buffers
end

#current_window_id ⇒ Object

Returns the value of attribute current_window_id.



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# File 'lib/ruvim/editor.rb', line 62

def current_window_id
  @current_window_id
end

#current_window_view_height_hint ⇒ Object

Returns the value of attribute current_window_view_height_hint.



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# File 'lib/ruvim/editor.rb', line 62

def current_window_view_height_hint
  @current_window_view_height_hint
end

#git_stream_handler ⇒ Object

Returns the value of attribute git_stream_handler.



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# File 'lib/ruvim/editor.rb', line 62

def git_stream_handler
  @git_stream_handler
end

#git_stream_stop_handler ⇒ Object

Returns the value of attribute git_stream_stop_handler.



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# File 'lib/ruvim/editor.rb', line 62

def git_stream_stop_handler
  @git_stream_stop_handler
end

#keymap_manager ⇒ Object

Returns the value of attribute keymap_manager.



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# File 'lib/ruvim/editor.rb', line 62

def keymap_manager
  @keymap_manager
end

#layout_tree ⇒ Object (readonly)

Returns the value of attribute layout_tree.



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# File 'lib/ruvim/editor.rb', line 61

def layout_tree
  @layout_tree
end

#message ⇒ Object

Returns the value of attribute message.



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# File 'lib/ruvim/editor.rb', line 62

def message
  @message
end

#mode ⇒ Object

Returns the value of attribute mode.



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# File 'lib/ruvim/editor.rb', line 62

def mode
  @mode
end

#open_path_handler ⇒ Object

Returns the value of attribute open_path_handler.



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# File 'lib/ruvim/editor.rb', line 62

def open_path_handler
  @open_path_handler
end

#pending_count ⇒ Object

Returns the value of attribute pending_count.



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# File 'lib/ruvim/editor.rb', line 62

def pending_count
  @pending_count
end

#restricted_mode ⇒ Object

Returns the value of attribute restricted_mode.



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# File 'lib/ruvim/editor.rb', line 62

def restricted_mode
  @restricted_mode
end

#run_stream_handler ⇒ Object

Returns the value of attribute run_stream_handler.



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# File 'lib/ruvim/editor.rb', line 62

def run_stream_handler
  @run_stream_handler
end

#shell_executor ⇒ Object

Returns the value of attribute shell_executor.



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# File 'lib/ruvim/editor.rb', line 62

def shell_executor
  @shell_executor
end

#windows ⇒ Object (readonly)

Returns the value of attribute windows.



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# File 'lib/ruvim/editor.rb', line 61

def windows
  @windows
end

Instance Method Details

#active_register_name ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 334

def active_register_name
  @active_register_name
end

#add_buffer_from_file(path) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 586

def add_buffer_from_file(path)
  id = next_buffer_id
  buffer = Buffer.from_file(id:, path:)
  assign_detected_filetype(buffer)
  @buffers[id] = buffer
  buffer
end

#add_empty_buffer(path: nil) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 570

def add_empty_buffer(path: nil)
  id = next_buffer_id
  buffer = Buffer.new(id:, path:)
  assign_detected_filetype(buffer)
  @buffers[id] = buffer
  buffer
end

#add_virtual_buffer(kind:, name:, lines:, filetype: nil, readonly: true, modifiable: false) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 578

def add_virtual_buffer(kind:, name:, lines:, filetype: nil, readonly: true, modifiable: false)
  id = next_buffer_id
  buffer = Buffer.new(id:, lines:, kind:, name:, readonly:, modifiable:)
  assign_filetype(buffer, filetype) if filetype
  @buffers[id] = buffer
  buffer
end

#add_window(buffer_id:) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 594

def add_window(buffer_id:)
  id = next_window_id
  window = Window.new(id:, buffer_id:)
  @windows[id] = window
  leaf = { type: :window, id: id }
  if @layout_tree.nil?
    @layout_tree = leaf
  else
    # Append as sibling — used for initial bootstrap only
    if @layout_tree[:type] == :window
      @layout_tree = { type: :hsplit, children: [@layout_tree, leaf] }
    else
      @layout_tree[:children] << leaf
    end
  end
  @current_window_id ||= id
  ensure_initial_tabpage!
  save_current_tabpage_state! unless @suspend_tab_autosave
  window
end

#apply_filetype_defaults(buffer, ft) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1148

def apply_filetype_defaults(buffer, ft)
  unless buffer.options.key?("runprg")
    runprg = filetype_default_runprg(ft)
    buffer.options["runprg"] = runprg if runprg
  end
end

#arglist ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1305

def arglist
  @arglist.dup
end

#arglist_current ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1318

def arglist_current
  @arglist[@arglist_index] if @arglist_index < @arglist.length
end

#arglist_first ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1340

def arglist_first
  @arglist_index = 0
  @arglist[@arglist_index] if @arglist.length > 0
end

#arglist_index ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1309

def arglist_index
  @arglist_index
end

#arglist_last ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1345

def arglist_last
  @arglist_index = [@arglist.length - 1, 0].max
  @arglist[@arglist_index] if @arglist.length > 0
end

#arglist_next(count = 1) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1322

def arglist_next(count = 1)
  new_index = @arglist_index + count
  if new_index >= @arglist.length
    raise RuVim::CommandError, "Already at last argument"
  end
  @arglist_index = new_index
  @arglist[@arglist_index]
end

#arglist_prev(count = 1) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1331

def arglist_prev(count = 1)
  new_index = @arglist_index - count
  if new_index < 0
    raise RuVim::CommandError, "Already at first argument"
  end
  @arglist_index = new_index
  @arglist[@arglist_index]
end

#assign_filetype(buffer, ft) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1142

def assign_filetype(buffer, ft)
  buffer.options["filetype"] = ft
  buffer.lang_module = resolve_lang_module(ft)
  apply_filetype_defaults(buffer, ft)
end

#buffer_ids ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 818

def buffer_ids
  @buffers.keys
end

#cancel_command_line ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1058

def cancel_command_line
  @command_line.clear
  leave_command_line
end

#clear_expired_transient_message!(now: nil) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1114

def clear_expired_transient_message!(now: nil)
  return false unless @message_deadline
  return false if message_error?
  return false if command_line_active?

  now ||= Process.clock_gettime(Process::CLOCK_MONOTONIC)
  return false if now < @message_deadline

  clear_message
  true
rescue StandardError
  false
end

#clear_message ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1093

def clear_message
  @message_kind = :info
  @message = ""
  @message_deadline = nil
end

#clear_visual ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 476

def clear_visual
  @visual_state = nil
end

#close_current_tabpage ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 661

def close_current_tabpage
  ensure_initial_tabpage!
  return nil if @tabpages.length <= 1

  save_current_tabpage_state!
  removed = @tabpages.delete_at(@current_tabpage_index)
  removed_tree = removed && removed[:layout_tree]
  tree_leaves(removed_tree).each do |wid|
    @windows.delete(wid)
    @location_lists.delete(wid)
  end
  @current_tabpage_index = [@current_tabpage_index, @tabpages.length - 1].min
  load_tabpage_state!(@tabpages[@current_tabpage_index])
  current_window
end

#close_current_window ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 637

def close_current_window
  close_window(@current_window_id)
end

#close_window(id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 641

def close_window(id)
  leaves = tree_leaves(@layout_tree)
  return nil if leaves.empty?
  return nil if leaves.length <= 1
  return nil unless leaves.include?(id)

  save_current_tabpage_state! unless @suspend_tab_autosave
  idx = leaves.index(id) || 0
  @windows.delete(id)
  @location_lists.delete(id)

  @layout_tree = tree_remove(@layout_tree, id)

  new_leaves = tree_leaves(@layout_tree)
  @current_window_id = new_leaves[[idx, new_leaves.length - 1].min] if @current_window_id == id
  @current_window_id ||= new_leaves.first
  save_current_tabpage_state! unless @suspend_tab_autosave
  current_window
end

#command_area_active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruvim/editor.rb', line 1138

def command_area_active?
  command_line_active? || message_error?
end

#command_line ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 135

def command_line
  @command_line
end

#command_line_active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruvim/editor.rb', line 1134

def command_line_active?
  @mode == :command_line
end

#command_line_prefix ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 143

def command_line_prefix
  @command_line.prefix
end

#consume_active_register(default = "\"") ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 338

def consume_active_register(default = "\"")
  name = @active_register_name || default
  @active_register_name = nil
  name
end

#current_buffer ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 176

def current_buffer
  @buffers.fetch(current_window.buffer_id)
end

#current_location ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 394

def current_location
  { buffer_id: current_buffer.id, row: current_window.cursor_y, col: current_window.cursor_x }
end

#current_location_list_item(window_id = current_window_id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 960

def current_location_list_item(window_id = current_window_id)
  list = location_list(window_id)
  idx = list[:index]
  idx ? list[:items][idx] : nil
end

#current_quickfix_item ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 919

def current_quickfix_item
  idx = @quickfix_list[:index]
  idx ? @quickfix_list[:items][idx] : nil
end

#current_tabpage_index ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 885

def current_tabpage_index
  @current_tabpage_index || 0
end

#current_tabpage_number ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 889

def current_tabpage_number
  current_tabpage_index + 1
end

#current_window ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 172

def current_window
  @windows.fetch(@current_window_id)
end

#delete_buffer(buffer_id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 830

def delete_buffer(buffer_id)
  buffer = @buffers[buffer_id]
  return nil unless buffer

  if @buffers.length <= 1
    replacement = add_empty_buffer
  else
    replacement = nil
  end

  fallback_id =
    if replacement
      replacement.id
    else
      candidates = @buffers.keys.reject { |bid| bid == buffer_id }
      alt = @alternate_buffer_id
      (alt && alt != buffer_id && @buffers.key?(alt)) ? alt : candidates.first
    end

  @windows.each_value do |win|
    next unless win.buffer_id == buffer_id
    next unless fallback_id

    win.buffer_id = fallback_id
    win.cursor_x = 0
    win.cursor_y = 0
    win.row_offset = 0
    win.col_offset = 0
  end

  @buffers.delete(buffer_id)
  @local_marks.delete(buffer_id)
  @alternate_buffer_id = nil if @alternate_buffer_id == buffer_id
  save_current_tabpage_state! unless @suspend_tab_autosave
  ensure_bootstrap_buffer! if @buffers.empty?
  true
end

#detect_filetype(path) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 260

def detect_filetype(path)
  p = path.to_s
  return nil if p.empty?

  base = File.basename(p)

  # Basename-based detection (exact match, then prefix)
  base_ft = Lang::Registry.detect_by_basename(base)
  return base_ft if base_ft

  # Extension-based detection
  ext_ft = Lang::Registry.detect_by_extension(File.extname(base))
  return ext_ft if ext_ft

  detect_filetype_from_shebang(p)
end

#echo(msg) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1072

def echo(msg)
  @message_kind = :info
  @message = msg.to_s
  @message_deadline = nil
end

#echo_error(msg) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1087

def echo_error(msg)
  @message_kind = :error
  @message = msg.to_s
  @message_deadline = nil
end

#echo_multiline(lines) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 561

def echo_multiline(lines)
  lines = Array(lines)
  if lines.length <= 1
    echo(lines.first.to_s)
  else
    enter_hit_enter_mode(lines)
  end
end

#echo_temporary(msg, duration_seconds:) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1078

def echo_temporary(msg, duration_seconds:)
  @message_kind = :info
  @message = msg.to_s
  dur = duration_seconds.to_f
  @message_deadline = dur.positive? ? (Process.clock_gettime(Process::CLOCK_MONOTONIC) + dur) : nil
rescue StandardError
  @message_deadline = nil
end

#effective_option(name, window: current_window, buffer: current_buffer) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 203

def effective_option(name, window: current_window, buffer: current_buffer)
  key = name.to_s
  if window && window.options.key?(key)
    window.options[key]
  elsif buffer && buffer.options.key?(key)
    buffer.options[key]
  else
    @global_options[key]
  end
end

#ensure_bootstrap_buffer! ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 765

def ensure_bootstrap_buffer!
  return unless @buffers.empty?

  buffer = add_empty_buffer
  add_window(buffer_id: buffer.id)
  ensure_initial_tabpage!
end

#enter_command_line_mode(prefix = ":") ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1052

def enter_command_line_mode(prefix = ":")
  @mode = :command_line
  @command_line.reset(prefix:)
  @pending_count = nil
end

#enter_hit_enter_mode(lines) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 550

def enter_hit_enter_mode(lines)
  @mode = :hit_enter
  @hit_enter_lines = Array(lines)
  @pending_count = nil
end

#enter_insert_mode ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1047

def enter_insert_mode
  @mode = :insert
  @pending_count = nil
end

#enter_normal_mode ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1040

def enter_normal_mode
  @mode = :normal
  @pending_count = nil
  clear_visual
  @rich_state = nil
end

#enter_rich_mode(format:, delimiter:) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 531

def enter_rich_mode(format:, delimiter:)
  @mode = :rich
  @pending_count = nil
  @rich_state = { format: format, delimiter: delimiter }
end

#enter_visual(mode) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 466

def enter_visual(mode)
  @mode = mode
  @visual_state = {
    mode: mode,
    anchor_y: current_window.cursor_y,
    anchor_x: current_window.cursor_x
  }
  @pending_count = nil
end

#exit_hit_enter_mode ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 556

def exit_hit_enter_mode
  @hit_enter_lines = nil
  enter_normal_mode
end

#exit_rich_mode ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 537

def exit_rich_mode
  @rich_state = nil
  enter_normal_mode
end

#filetype_default_runprg(ft) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1155

def filetype_default_runprg(ft)
  Lang::Registry.runprg_for(ft)
end

#find_window_ids_by_buffer_kind(kind) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1003

def find_window_ids_by_buffer_kind(kind)
  window_order.select do |wid|
    win = @windows[wid]
    buf = win && @buffers[win.buffer_id]
    buf && buf.kind == kind
  end
end

#focus_next_window ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 685

def focus_next_window
  order = window_order
  return current_window if order.length <= 1

  idx = order.index(@current_window_id) || 0
  focus_window(order[(idx + 1) % order.length])
end

#focus_prev_window ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 693

def focus_prev_window
  order = window_order
  return current_window if order.length <= 1

  idx = order.index(@current_window_id) || 0
  focus_window(order[(idx - 1) % order.length])
end

#focus_window(id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 677

def focus_window(id)
  return nil unless @windows.key?(id)

  @current_window_id = id
  save_current_tabpage_state! unless @suspend_tab_autosave
  current_window
end

#focus_window_direction(dir) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 701

def focus_window_direction(dir)
  leaves = tree_leaves(@layout_tree)
  return current_window if leaves.length <= 1

  rects = tree_compute_rects(@layout_tree, top: 0.0, left: 0.0, height: 1.0, width: 1.0)
  cur = rects[@current_window_id]
  return current_window unless cur

  best_id = nil
  best_dist = Float::INFINITY
  cur_cx = cur[:left] + cur[:width] / 2.0
  cur_cy = cur[:top] + cur[:height] / 2.0

  rects.each do |wid, r|
    next if wid == @current_window_id
    rcx = r[:left] + r[:width] / 2.0
    rcy = r[:top] + r[:height] / 2.0

    in_direction = case dir
                   when :left  then rcx < cur_cx
                   when :right then rcx > cur_cx
                   when :up    then rcy < cur_cy
                   when :down  then rcy > cur_cy
                   end
    next unless in_direction

    dist = (rcx - cur_cx).abs + (rcy - cur_cy).abs
    if dist < best_dist
      best_dist = dist
      best_id = wid
    end
  end

  best_id ? focus_window(best_id) : current_window
end

#get_option(name, scope: :effective, window: current_window, buffer: current_buffer) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 214

def get_option(name, scope: :effective, window: current_window, buffer: current_buffer)
  key = name.to_s
  case scope
  when :global
    @global_options[key]
  when :buffer
    buffer&.options&.[](key)
  when :window
    window&.options&.[](key)
  else
    effective_option(key, window:, buffer:)
  end
end

#get_register(name = "\"") ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 315

def get_register(name = "\"")
  key = name.to_s.downcase
  if key == "\""
    if (default_clip = clipboard_default_register_key)
      if (payload = read_clipboard_register(default_clip))
        @registers["\""] = dup_register_payload(payload)
        return @registers["\""]
      end
    end
  end
  return read_clipboard_register(key) if clipboard_register?(key)

  @registers[key]
end

#global_options ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 139

def global_options
  @global_options
end

#has_split_ancestor_on_axis?(dir) ⇒ Boolean

Check if the path from root to the current window passes through a split node matching the direction's axis. Used by focus_or_split to decide whether to split or stay put at edges. left/right → check for :vsplit ancestor up/down → check for :hsplit ancestor

Returns:

  • (Boolean) 


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# File 'lib/ruvim/editor.rb', line 995

def has_split_ancestor_on_axis?(dir)
  target_type = case dir
                when :left, :right then :vsplit
                when :up, :down then :hsplit
                end
  tree_path_has_split_type?(@layout_tree, @current_window_id, target_type)
end

#hit_enter_active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruvim/editor.rb', line 542

def hit_enter_active?
  @mode == :hit_enter
end

#hit_enter_lines ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 546

def hit_enter_lines
  @hit_enter_lines
end

#hlsearch_suppressed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruvim/editor.rb', line 164

def hlsearch_suppressed?
  @hlsearch_suppressed
end

#invoke_app_action(name, **kwargs) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 187

def invoke_app_action(name, **kwargs)
  handler = @app_action_handler
  return false unless handler

  handler.call(name, **kwargs)
  true
end

#jump_newer(linewise: false) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 445

def jump_newer(linewise: false)
  return nil if @jumplist.empty? || @jump_index.nil?

  next_idx = @jump_index + 1
  return nil if next_idx >= @jumplist.length

  @jump_index = next_idx
  jump_to_location(@jumplist[@jump_index], linewise:)
end

#jump_older(linewise: false) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 434

def jump_older(linewise: false)
  return nil if @jumplist.empty?

  if @jump_index.nil?
    push_jump_location(current_location)
  else
    @jump_index = [@jump_index - 1, 0].max
  end
  jump_to_location(@jumplist[@jump_index], linewise:)
end

#jump_to_location(loc, linewise: false) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1291

def jump_to_location(loc, linewise: false)
  location = normalize_location(loc)
  return nil unless location
  return nil unless @buffers.key?(location[:buffer_id])

  switch_to_buffer(location[:buffer_id]) if current_buffer.id != location[:buffer_id]
  current_window.cursor_y = location[:row]
  current_window.cursor_x = linewise ? 0 : location[:col]
  current_window.clamp_to_buffer(current_buffer)
  current_window.cursor_x = first_nonblank_col(current_buffer, current_window.cursor_y) if linewise
  current_window.clamp_to_buffer(current_buffer)
  current_location
end

#jump_to_mark(name, linewise: false) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 455

def jump_to_mark(name, linewise: false)
  loc = mark_location(name)
  return nil unless loc

  jump_to_location(loc, linewise:)
end

#last_find ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 151

def last_find
  @last_find
end

#last_search ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 147

def last_search
  @last_search
end

#leave_command_line ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1063

def leave_command_line
  if @rich_state
    @mode = :rich
    @pending_count = nil
  else
    enter_normal_mode
  end
end

#location_items(window_id = current_window_id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 950

def location_items(window_id = current_window_id)
  location_list(window_id)[:items]
end

#location_list(window_id = current_window_id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 946

def location_list(window_id = current_window_id)
  @location_lists[window_id]
end

#macro_keys(name) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 390

def macro_keys(name)
  @macros[name.to_s.downcase]
end

#macro_recording? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruvim/editor.rb', line 352

def macro_recording?
  !@macro_recording.nil?
end

#macro_recording_name ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 356

def macro_recording_name
  @macro_recording && @macro_recording[:name]
end

#macros ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 348

def macros
  @macros
end

#mark_location(name, buffer_id: current_buffer.id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 411

def mark_location(name, buffer_id: current_buffer.id)
  mark = name.to_s
  return nil unless mark.match?(/\A[A-Za-z]\z/)

  if mark.match?(/\A[a-z]\z/)
    @local_marks[buffer_id][mark]
  else
    @global_marks[mark]
  end
end

#materialize_intro_buffer! ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 806

def materialize_intro_buffer!
  return false unless current_buffer.intro_buffer?

  current_buffer.become_normal_empty_buffer!
  assign_filetype(current_buffer, nil)
  current_window.cursor_x = 0
  current_window.cursor_y = 0
  current_window.row_offset = 0
  current_window.col_offset = 0
  true
end

#message_error? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruvim/editor.rb', line 1099

def message_error?
  !@message.to_s.empty? && @message_kind == :error
end

#move_location_list(step, window_id: current_window_id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 966

def move_location_list(step, window_id: current_window_id)
  list = location_list(window_id)
  items = list[:items]
  return nil if items.empty?

  cur = list[:index]
  list[:index] = if cur.nil?
                   step.to_i > 0 ? 0 : items.length - 1
                 else
                   (cur + step.to_i) % items.length
                 end
  current_location_list_item(window_id)
end

#move_quickfix(step) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 924

def move_quickfix(step)
  items = @quickfix_list[:items]
  return nil if items.empty?

  cur = @quickfix_list[:index]
  @quickfix_list[:index] = if cur.nil?
                              step.to_i > 0 ? 0 : items.length - 1
                            else
                              (cur + step.to_i) % items.length
                            end
  current_quickfix_item
end

#next_buffer_id_from(current_id, step = 1) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 822

def next_buffer_id_from(current_id, step = 1)
  ids = buffer_ids
  return nil if ids.empty?

  idx = ids.index(current_id) || 0
  ids[(idx + step) % ids.length]
end

#open_path(path) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 751

def open_path(path)
  handler = @open_path_handler
  return handler.call(path) if handler

  open_path_sync(path)
end

#open_path_sync(path) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 758

def open_path_sync(path)
  buffer = add_buffer_from_file(path)
  switch_to_buffer(buffer.id)
  echo("[New File]") unless path && File.exist?(path)
  buffer
end

#option_def(name) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 195

def option_def(name)
  OPTION_DEFS[name.to_s]
end

#option_default_scope(name) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 199

def option_default_scope(name)
  option_def(name)&.fetch(:default_scope, :global) || :global
end

#option_snapshot(window: current_window, buffer: current_buffer) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 247

def option_snapshot(window: current_window, buffer: current_buffer)
  keys = (OPTION_DEFS.keys + @global_options.keys + (buffer&.options&.keys || []) + (window&.options&.keys || [])).uniq.sort
  keys.map do |k|
    {
      name: k,
      effective: get_option(k, scope: :effective, window:, buffer:),
      global: get_option(k, scope: :global, window:, buffer:),
      buffer: get_option(k, scope: :buffer, window:, buffer:),
      window: get_option(k, scope: :window, window:, buffer:)
    }
  end
end

#push_jump_location(location = current_location) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 422

def push_jump_location(location = current_location)
  loc = normalize_location(location)
  return nil unless loc

  if @jump_index && @jump_index < @jumplist.length - 1
    @jumplist = @jumplist[0..@jump_index]
  end
  @jumplist << loc unless same_location?(@jumplist.last, loc)
  @jump_index = @jumplist.length - 1 unless @jumplist.empty?
  loc
end

#quickfix_index ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 909

def quickfix_index
  @quickfix_list[:index]
end

#quickfix_items ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 905

def quickfix_items
  @quickfix_list[:items]
end

#record_macro_key(key) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 384

def record_macro_key(key)
  return unless @macro_recording

  @macro_recording[:keys] << dup_macro_key(key)
end

#registers ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 277

def registers
  @registers
end

#request_quit! ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 119

def request_quit!
  @running = false
end

#restricted_mode? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruvim/editor.rb', line 115

def restricted_mode?
  !!@restricted_mode
end

#rich_mode? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruvim/editor.rb', line 527

def rich_mode?
  @mode == :rich
end

#rich_state ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 523

def rich_state
  @rich_state
end

#run_history ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 123

def run_history
  @run_history
end

#run_output_buffer_id ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 127

def run_output_buffer_id
  @run_output_buffer_id
end

#run_output_buffer_id=(id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 131

def run_output_buffer_id=(id)
  @run_output_buffer_id = id
end

#running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruvim/editor.rb', line 111

def running?
  @running
end

#select_location_list(index, window_id: current_window_id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 980

def select_location_list(index, window_id: current_window_id)
  list = location_list(window_id)
  items = list[:items]
  return nil if items.empty?

  i = [[index.to_i, 0].max, items.length - 1].min
  list[:index] = i
  current_location_list_item(window_id)
end

#select_quickfix(index) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 937

def select_quickfix(index)
  items = @quickfix_list[:items]
  return nil if items.empty?

  i = [[index.to_i, 0].max, items.length - 1].min
  @quickfix_list[:index] = i
  current_quickfix_item
end

#set_active_register(name) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 330

def set_active_register(name)
  @active_register_name = name.to_s
end

#set_arglist(paths) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1313

def set_arglist(paths)
  @arglist = Array(paths).dup
  @arglist_index = 0
end

#set_last_find(char:, direction:, till:) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 168

def set_last_find(char:, direction:, till:)
  @last_find = { char: char, direction: direction, till: !!till }
end

#set_last_search(pattern:, direction:) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 155

def set_last_search(pattern:, direction:)
  @last_search = { pattern: pattern, direction: direction }
  @hlsearch_suppressed = false
end

#set_location_list(items, window_id: current_window_id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 954

def set_location_list(items, window_id: current_window_id)
  ary = Array(items).map { |it| normalize_location(it)&.merge(text: (it[:text] || it["text"]).to_s) }.compact
  @location_lists[window_id] = { items: ary, index: nil }
  @location_lists[window_id]
end

#set_mark(name, window = current_window) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 398

def set_mark(name, window = current_window)
  mark = name.to_s
  return false unless mark.match?(/\A[A-Za-z]\z/)

  loc = { buffer_id: window.buffer_id, row: window.cursor_y, col: window.cursor_x }
  if mark.match?(/\A[a-z]\z/)
    @local_marks[window.buffer_id][mark] = loc
  else
    @global_marks[mark] = loc
  end
  true
end

#set_option(name, value, scope: :auto, window: current_window, buffer: current_buffer) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 228

def set_option(name, value, scope: :auto, window: current_window, buffer: current_buffer)
  key = name.to_s
  value = coerce_option_value(key, value)
  actual_scope = (scope == :auto ? option_default_scope(key) : scope)
  case actual_scope
  when :global
    @global_options[key] = value
  when :buffer
    raise RuVim::CommandError, "No current buffer" unless buffer
    buffer.options[key] = value
  when :window
    raise RuVim::CommandError, "No current window" unless window
    window.options[key] = value
  else
    raise RuVim::CommandError, "Unknown option scope: #{actual_scope}"
  end
  value
end

#set_quickfix_list(items) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 913

def set_quickfix_list(items)
  ary = Array(items).map { |it| normalize_location(it)&.merge(text: (it[:text] || it["text"]).to_s) }.compact
  @quickfix_list = { items: ary, index: nil }
  @quickfix_list
end

#set_register(name = "\"", text:, type: :charwise) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 281

def set_register(name = "\"", text:, type: :charwise)
  key = name.to_s
  return { text: text, type: type } if key == "_"

  payload = write_register_payload(key, text: text, type: type)
  write_clipboard_register(key, payload)
  if key == "\""
    if (default_clip = clipboard_default_register_key)
      mirror = write_register_payload(default_clip, text: payload[:text], type: payload[:type])
      write_clipboard_register(default_clip, mirror)
    end
  end
  @registers["\""] = payload unless key == "\""
  payload
end

#show_help_buffer!(title:, lines:, filetype: "help") ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 773

def show_help_buffer!(title:, lines:, filetype: "help")
  buffer = add_virtual_buffer(
    kind: :help,
    name: title,
    lines: Array(lines),
    filetype: filetype,
    readonly: true,
    modifiable: false
  )
  switch_to_buffer(buffer.id)
  echo(title)
  buffer
end

#show_intro_buffer_if_applicable! ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 787

def show_intro_buffer_if_applicable!
  return unless @buffers.length == 1
  return unless current_buffer.file_buffer?
  return unless current_buffer.path.nil?
  return unless current_buffer.lines == [""]
  return if current_buffer.modified?

  current_buffer.replace_all_lines!(intro_lines)
  current_buffer.configure_special!(kind: :intro, name: "[Intro]", readonly: true, modifiable: false)
  current_buffer.modified = false
  assign_filetype(current_buffer, "help")
  current_window.cursor_x = 0
  current_window.cursor_y = 0
  current_window.row_offset = 0
  current_window.col_offset = 0
  clear_message
  current_buffer
end

#split_current_window(layout: :horizontal, place: :after) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 615

def split_current_window(layout: :horizontal, place: :after)
  save_current_tabpage_state! unless @suspend_tab_autosave
  src = current_window
  id = next_window_id
  win = Window.new(id:, buffer_id: src.buffer_id)
  @windows[id] = win
  ensure_initial_tabpage!
  win.cursor_x = src.cursor_x
  win.cursor_y = src.cursor_y
  win.row_offset = src.row_offset
  win.col_offset = src.col_offset

  split_type = (layout == :vertical ? :vsplit : :hsplit)
  new_leaf = { type: :window, id: win.id }

  @layout_tree = tree_split_leaf(@layout_tree, src.id, split_type, new_leaf, place)

  @current_window_id = win.id
  save_current_tabpage_state! unless @suspend_tab_autosave
  win
end

#start_macro_recording(name) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 360

def start_macro_recording(name)
  reg = name.to_s
  return false unless reg.match?(/\A[A-Za-z0-9]\z/)

  @macro_recording = { name: reg, keys: [] }
  true
end

#stop_macro_recording ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 368

def stop_macro_recording
  rec = @macro_recording
  @macro_recording = nil
  return nil unless rec

  name = rec[:name]
  keys = rec[:keys]
  if name.match?(/\A[A-Z]\z/)
    base = name.downcase
    @macros[base] = [*(@macros[base] || []), *keys]
    @macros[base]
  else
    @macros[name.downcase] = keys
  end
end

#store_operator_register(name = "\"", text:, type:, kind:) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 297

def store_operator_register(name = "\"", text:, type:, kind:)
  key = (name || "\"")
  payload = { text: text, type: type }
  return payload if key == "_"

  written = set_register(key, text: payload[:text], type: payload[:type])
  op_payload = dup_register_payload(written)

  case kind
  when :yank
    @registers["0"] = dup_register_payload(op_payload)
  when :delete, :change
    rotate_delete_registers!(op_payload)
  end

  written
end

#stream_stop_or_cancel! ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 180

def stream_stop_or_cancel!
  handler = current_buffer&.stream&.stop_handler
  return false unless handler

  handler.call
end

#suppress_hlsearch! ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 160

def suppress_hlsearch!
  @hlsearch_suppressed = true
end

#switch_to_buffer(buffer_id) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 737

def switch_to_buffer(buffer_id)
  prev_buffer_id = current_window&.buffer_id
  current_window.buffer_id = buffer_id
  current_window.cursor_x = 0
  current_window.cursor_y = 0
  current_window.row_offset = 0
  current_window.col_offset = 0
  if prev_buffer_id && prev_buffer_id != buffer_id
    @alternate_buffer_id = prev_buffer_id
  end
  save_current_tabpage_state! unless @suspend_tab_autosave
  current_window
end

#tabnew(path: nil) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1011

def tabnew(path: nil)
  ensure_initial_tabpage!
  save_current_tabpage_state!

  with_tab_autosave_suspended do
    @layout_tree = nil
    @current_window_id = nil

    buffer = path ? add_buffer_from_file(path) : add_empty_buffer
    add_window(buffer_id: buffer.id)
    tab = new_tabpage_snapshot
    @tabpages << tab
    @current_tabpage_index = @tabpages.length - 1
    load_tabpage_state!(tab)
    return tab
  end
end

#tabnext(step = 1) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1029

def tabnext(step = 1)
  return nil if @tabpages.empty?
  save_current_tabpage_state!
  @current_tabpage_index = (@current_tabpage_index + step) % @tabpages.length
  load_tabpage_state!(@tabpages[@current_tabpage_index])
end

#tabpage_count ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 893

def tabpage_count
  @tabpages.length
end

#tabpage_windows(tab) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 897

def tabpage_windows(tab)
  tree_leaves(tab[:layout_tree])
end

#tabpages ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 881

def tabpages
  @tabpages
end

#tabprev(step = 1) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1036

def tabprev(step = 1)
  tabnext(-step)
end

#text_viewport_size(rows:, cols:) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1128

def text_viewport_size(rows:, cols:)
  # Reserve one status row + one command/error row at the bottom.
  text_rows = rows - 2
  [text_rows, cols]
end

#transient_message_timeout_seconds(now: nil) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 1103

def transient_message_timeout_seconds(now: nil)
  return nil unless @message_deadline
  return nil if message_error?
  return nil if command_line_active?

  now ||= Process.clock_gettime(Process::CLOCK_MONOTONIC)
  [@message_deadline - now, 0.0].max
rescue StandardError
  nil
end

#visual_active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruvim/editor.rb', line 462

def visual_active?
  !@visual_state.nil?
end

#visual_selection(window = current_window) ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 480

def visual_selection(window = current_window)
  return nil unless @visual_state

  ay = @visual_state[:anchor_y]
  ax = @visual_state[:anchor_x]
  cy = window.cursor_y
  cx = window.cursor_x
  case @visual_state[:mode]
  when :visual_line
    start_row, end_row = [ay, cy].minmax
    {
      mode: :linewise,
      start_row: start_row,
      start_col: 0,
      end_row: end_row,
      end_col: current_buffer.line_length(end_row)
    }
  when :visual_block
    start_row, end_row = [ay, cy].minmax
    start_col, end_col = [ax, cx].minmax
    {
      mode: :blockwise,
      start_row: start_row,
      start_col: start_col,
      end_row: end_row,
      end_col: end_col + 1
    }
  else
    if ay < cy || (ay == cy && ax <= cx)
      s_row, s_col, e_row, e_col = [ay, ax, cy, cx]
    else
      s_row, s_col, e_row, e_col = [cy, cx, ay, ax]
    end
    {
      mode: :charwise,
      start_row: s_row,
      start_col: s_col,
      end_row: e_row,
      end_col: e_col + 1
    }
  end
end

#visual_state ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 344

def visual_state
  @visual_state
end

#window_count ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 901

def window_count
  tree_leaves(@layout_tree).length
end

#window_layout ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 872

def window_layout
  return :single if @layout_tree.nil? || @layout_tree[:type] == :window
  case @layout_tree[:type]
  when :vsplit then :vertical
  when :hsplit then :horizontal
  else :single
  end
end

#window_order ⇒ Object 



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# File 'lib/ruvim/editor.rb', line 868

def window_order
  tree_leaves(@layout_tree)
end