Class: Textbringer::TransientMarkMode

Inherits:
GlobalMinorMode show all
Defined in:
lib/textbringer/modes/transient_mark_mode.rb

Overview

Transient Mark Mode is a global minor mode that highlights the region between mark and point when the mark is active.

Constant Summary collapse

MARK_PRESERVING_COMMANDS =

Commands that should NOT deactivate the mark

[
  :set_mark_command,
  :exchange_point_and_mark,
  :transient_mark_mode,
  # Navigation commands that should preserve mark
  :beginning_of_line,
  :end_of_line,
  :next_line,
  :previous_line,
  :forward_char,
  :backward_char,
  :forward_word,
  :backward_word,
  :scroll_up_command,
  :scroll_down_command,
  :beginning_of_buffer,
  :end_of_buffer,
  # Search commands
  :isearch_forward,
  :isearch_backward,
  :isearch_repeat_forward,
  :isearch_repeat_backward,
  :isearch_printing_char,
  :isearch_delete_char,
  :isearch_yank_word_or_char,
  :isearch_quoted_insert,
  :isearch_exit,
  # Undo/redo
  :undo,
  :redo_command,
  # Other navigation
  :goto_line,
  :goto_char,
  :recenter,
  :move_to_beginning_of_line,
  :move_to_end_of_line
].to_set.freeze
PRE_COMMAND_HOOK =

Hook to deactivate mark before most commands

-> {
  buffer = Buffer.current
  controller = Controller.current

  return unless buffer.mark_active?

  # Check if this command preserves the mark
  command = controller.this_command
  unless MARK_PRESERVING_COMMANDS.include?(command)
    buffer.deactivate_mark
  end
}
POST_COMMAND_HOOK =

Hook to update visible mark after commands

-> {
  buffer = Buffer.current

  # Skip if in isearch or ispell mode (they manage their own highlighting)
  controller = Controller.current
  if controller.overriding_map
    return if Commands.const_defined?(:ISEARCH_MODE_MAP) &&
              controller.overriding_map == Commands::ISEARCH_MODE_MAP
    return if Commands.const_defined?(:ISPELL_MODE_MAP) &&
              controller.overriding_map == Commands::ISPELL_MODE_MAP
  end

  # Update visible_mark to reflect mark_active state
  if buffer.mark_active?
    begin
      mark = buffer.mark
      buffer.set_visible_mark(mark.location) if mark
    rescue EditorError
      # Mark is not set, do nothing
    end
  elsif !buffer.mark_active? && buffer.visible_mark
    buffer.delete_visible_mark
  end
}

Constants included from Commands

Commands::CLIPBOARD_AVAILABLE, Commands::CTAGS, Commands::EMAIL_REGEXP, Commands::HELP_RING, Commands::ISEARCH_STATUS, Commands::ISPELL_STATUS, Commands::ISPELL_WORD_REGEXP, Commands::KEYBOARD_MACROS, Commands::REGISTERS, Commands::RE_SEARCH_STATUS, Commands::URI_REGEXP

Constants included from Utils

Utils::COMPLETION, Utils::EXPRESSION_COMPLETOR, Utils::EXPRESSION_COMPLETOR_OPTIONS, Utils::HOOKS

Class Method Summary collapse

Methods inherited from GlobalMinorMode

enabled=, enabled?, inherited

Methods included from Commands

[], #command_help, command_table, #current_prefix_arg, define_command, #ensure_ispell_active, #execute_keyboard_macro, #get_tags, #isearch_done, #isearch_mode, #isearch_mode?, #isearch_pre_command_hook, #isearch_prompt, #isearch_repeat, #isearch_repeat_backward, #isearch_repeat_forward, #isearch_search, #ispell_done, #ispell_forward, #ispell_mode, #keymap_bindings, list, #match_beginning, #match_end, #match_string, #message_misspelled, #number_prefix_arg, #prefix_numeric_value, #read_input_method_name, #read_keyboard_macro, #read_register, #replace_match, undefine_command, #universal_argument_mode

Methods included from Utils

add_hook, background, complete_for_minibuffer, delete_completions_window, foreground, foreground!, get_hooks, message, read_buffer, read_char, read_command_name, read_encoding, read_event, read_expression, read_file_name, read_from_minibuffer, read_key_sequence, read_object, read_single_char, received_keyboard_quit?, remove_hook, ruby_install_name, run_hooks, run_hooks_in, self_insert_and_exit_minibuffer, set_transient_map, show_exception, sit_for, sleep_for, y_or_n?, yes_or_no?

Class Method Details

.disable ⇒ Object 



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# File 'lib/textbringer/modes/transient_mark_mode.rb', line 93

def self.disable
  # Remove global hooks
  remove_hook(:pre_command_hook, PRE_COMMAND_HOOK, local: false)
  remove_hook(:post_command_hook, POST_COMMAND_HOOK, local: false)

  # Deactivate mark in all buffers
  Buffer.list.each do |buffer|
    buffer.deactivate_mark
  end
  message("Transient Mark mode disabled")
end

.enable ⇒ Object 



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# File 'lib/textbringer/modes/transient_mark_mode.rb', line 86

def self.enable
  # Add global hooks (not buffer-local)
  add_hook(:pre_command_hook, PRE_COMMAND_HOOK, local: false)
  add_hook(:post_command_hook, POST_COMMAND_HOOK, local: false)
  message("Transient Mark mode enabled")
end