Class: CommandT::Controller

Inherits:
Object
  • Object
show all
Includes:
PathUtilities, SCMUtilities
Defined in:
lib/command-t/controller.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Controller

Returns a new instance of Controller.



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# File 'lib/command-t/controller.rb', line 27

def initialize
  encoding = VIM::get_string('g:CommandTEncoding')
  if encoding
    begin
      encoding = Encoding.find(encoding)
      Encoding.default_external = encoding
      Encoding.default_internal = encoding
    rescue
    end
  end
  @nowait = '<nowait>' if ::VIM::evaluate('v:version') >= 704
end

Class Method Details

.guard(method) ⇒ Object

Wraps ‘method` in a `rescue` clause that attempts to print some useful information to the screen before re-raising any exception. Without this, most of the useful output is unhelpfully swallowed by Vim.



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# File 'lib/command-t/controller.rb', line 12

def self.guard(method)
  class_eval <<-END
    alias original_#{method} #{method}
    def #{method}(*args, &block)
      original_#{method}(*args, &block)
    rescue Exception => e
      backtrace = e.backtrace
      trimmed = backtrace.take(backtrace.length - 2)
      text = VIM::escape_for_single_quotes trimmed.join("\n")
      ::VIM::command "echo '\#{text}'"
      raise e
    end
  END
end

Instance Method Details

#accept_selection(options = {}) ⇒ Object 



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# File 'lib/command-t/controller.rb', line 234

def accept_selection(options = {})
  selection = @match_window.selection
  hide
  open_selection(selection, options) unless selection.nil?
end

#active_finder ⇒ Object

For possible use in status lines.



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# File 'lib/command-t/controller.rb', line 41

def active_finder
  @active_finder && @active_finder.class.name
end

#backspace ⇒ Object 



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# File 'lib/command-t/controller.rb', line 207

def backspace
  if @focus == prompt
    prompt.backspace!
    update
  end
end

#cancel ⇒ Object 



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# File 'lib/command-t/controller.rb', line 248

def cancel
  hide
end

#clear ⇒ Object 



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# File 'lib/command-t/controller.rb', line 263

def clear
  prompt.clear!
  list_matches!
end

#clear_prev_word ⇒ Object 



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# File 'lib/command-t/controller.rb', line 269

def clear_prev_word
  prompt.clear_prev_word!
  list_matches!
end

#cursor_end ⇒ Object 



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# File 'lib/command-t/controller.rb', line 285

def cursor_end
  prompt.cursor_end if @focus == prompt
end

#cursor_left ⇒ Object 



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# File 'lib/command-t/controller.rb', line 275

def cursor_left
  prompt.cursor_left if @focus == prompt
end

#cursor_right ⇒ Object 



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# File 'lib/command-t/controller.rb', line 280

def cursor_right
  prompt.cursor_right if @focus == prompt
end

#cursor_start ⇒ Object 



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# File 'lib/command-t/controller.rb', line 290

def cursor_start
  prompt.cursor_start if @focus == prompt
end

#delete ⇒ Object 



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# File 'lib/command-t/controller.rb', line 215

def delete
  if @focus == prompt
    prompt.delete!
    update
  end
end

#flush ⇒ Object 



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# File 'lib/command-t/controller.rb', line 187

def flush
  @file_finder  = nil
  @max_height   = nil
  @min_height   = nil
  @prompt       = nil
  @tag_finder   = nil
end

#handle_key ⇒ Object 



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# File 'lib/command-t/controller.rb', line 196

def handle_key
  key = ::VIM::evaluate('a:arg').to_i.chr
  if @focus == prompt
    prompt.add! key
    update
  else
    @match_window.find key
  end
end

#hide ⇒ Object 



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# File 'lib/command-t/controller.rb', line 154

def hide
  @match_window.leave
  if VIM::Window.select @initial_window
    if @initial_buffer.number == 0
      # upstream bug: buffer number misreported as 0
      # see: https://wincent.com/issues/1617
      ::VIM::command "silent b #{@initial_buffer.name}"
    else
      ::VIM::command "silent b #{@initial_buffer.number}"
    end
  end
end

#is_own_buffer(buffer_number) ⇒ Object

For possible use in status lines.



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# File 'lib/command-t/controller.rb', line 51

def is_own_buffer(buffer_number)
  @match_window && buffer_number == @match_window.buffer_number
end

#leave ⇒ Object 



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# File 'lib/command-t/controller.rb', line 295

def leave
  @match_window.leave
end

#list_matches(options = {}) ⇒ Object 



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# File 'lib/command-t/controller.rb', line 303

def list_matches(options = {})
  return unless @needs_update || options[:force]

  @matches = @active_finder.sorted_matches_for(
    prompt.abbrev,
    :case_sensitive => case_sensitive?,
    :limit          => match_limit,
    :threads        => CommandT::Util.processor_count,
    :ignore_spaces  => VIM::get_bool('g:CommandTIgnoreSpaces', true),
    :recurse        => VIM::get_bool('g:CommandTRecursiveMatch', true)
  )
  @match_window.matches = @matches

  # Scanner may have overwritten prompt to show progress.
  prompt.redraw

  @needs_update = false
end

#path ⇒ Object

For possible use in status lines.



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# File 'lib/command-t/controller.rb', line 46

def path
  @path
end

#quickfix ⇒ Object

Take current matches and stick them in the quickfix window.



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# File 'lib/command-t/controller.rb', line 168

def quickfix
  hide

  matches = @matches.map do |match|
    "{ 'filename': '#{VIM::escape_for_single_quotes match}' }"
  end.join(', ')

  ::VIM::command 'call setqflist([' + matches + '])'
  ::VIM::command 'cope'
end

#refresh ⇒ Object 



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# File 'lib/command-t/controller.rb', line 180

def refresh
  return unless @active_finder && @active_finder.respond_to?(:flush)
  @active_finder.flush
  list_matches!
end

#remove_buffer ⇒ Object 



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# File 'lib/command-t/controller.rb', line 223

def remove_buffer
  return unless @active_finder.class <= CommandT::Finder::BufferFinder
  selection = @match_window.selection

  if @initial_buffer.name != selection
    ::VIM::command "bd #{selection}"
  end
  list_matches!
end

#return_is_own_buffer(buffer_number) ⇒ Object

For possible use in status lines.



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# File 'lib/command-t/controller.rb', line 56

def return_is_own_buffer(buffer_number)
  if is_own_buffer(buffer_number)
    ::VIM::command 'return 1'
  else
    ::VIM::command 'return 0'
  end
end

#select_next ⇒ Object 



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# File 'lib/command-t/controller.rb', line 253

def select_next
  @match_window.select_next
end

#select_prev ⇒ Object 



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# File 'lib/command-t/controller.rb', line 258

def select_prev
  @match_window.select_prev
end

#show_buffer_finder ⇒ Object 



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# File 'lib/command-t/controller.rb', line 64

def show_buffer_finder
  @path          = VIM::pwd
  @active_finder = buffer_finder
  show
end

#show_command_finder ⇒ Object 



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# File 'lib/command-t/controller.rb', line 71

def show_command_finder
  @path          = VIM::pwd
  @active_finder = command_finder
  show
end

#show_file_finder ⇒ Object 



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# File 'lib/command-t/controller.rb', line 127

def show_file_finder
  # optional parameter will be desired starting directory, or ""

  arg = ::VIM::evaluate('a:arg')
  if arg && arg.size > 0
    @path = File.expand_path(arg, VIM::pwd)
  else
    traverse = VIM::get_string('g:CommandTTraverseSCM') || 'file'
    case traverse
    when 'file'
      @path = nearest_ancestor(VIM::current_file_dir, scm_markers) || VIM::pwd
    when 'dir'
      @path = nearest_ancestor(VIM::pwd, scm_markers) || VIM::pwd
    else
      @path = VIM::pwd
    end
  end

  @active_finder    = file_finder
  file_finder.path  = @path
  show
rescue Errno::ENOENT
  # probably a problem with the optional parameter
  @match_window.print_no_such_file_or_directory
end

#show_help_finder ⇒ Object 



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# File 'lib/command-t/controller.rb', line 78

def show_help_finder
  @path          = VIM::pwd
  @active_finder = help_finder
  show
end

#show_history_finder ⇒ Object 



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# File 'lib/command-t/controller.rb', line 85

def show_history_finder
  @path          = VIM::pwd
  @active_finder = history_finder
  show
end

#show_jump_finder ⇒ Object 



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# File 'lib/command-t/controller.rb', line 92

def show_jump_finder
  @path          = VIM::pwd
  @active_finder = jump_finder
  show
end

#show_line_finder ⇒ Object 



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# File 'lib/command-t/controller.rb', line 99

def show_line_finder
  @path          = VIM::pwd
  @active_finder = line_finder
  show
end

#show_mru_finder ⇒ Object 



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# File 'lib/command-t/controller.rb', line 106

def show_mru_finder
  @path          = VIM::pwd
  @active_finder = mru_finder
  show
end

#show_search_finder ⇒ Object 



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# File 'lib/command-t/controller.rb', line 113

def show_search_finder
  @path          = VIM::pwd
  @active_finder = search_finder
  show
end

#show_tag_finder ⇒ Object 



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# File 'lib/command-t/controller.rb', line 120

def show_tag_finder
  @path          = VIM::pwd
  @active_finder = tag_finder
  show
end

#split_command ⇒ Object 



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# File 'lib/command-t/controller.rb', line 327

def split_command
  VIM::get_string('g:CommandTAcceptSelectionSplitCommand') || 'CommandTOpen split'
end

#tab_command ⇒ Object 



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# File 'lib/command-t/controller.rb', line 323

def tab_command
  VIM::get_string('g:CommandTAcceptSelectionTabCommand') || 'CommandTOpen tabedit'
end

#toggle_focus ⇒ Object 



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# File 'lib/command-t/controller.rb', line 241

def toggle_focus
  @focus.unfocus # old focus
  @focus = @focus == prompt ? @match_window : prompt
  @focus.focus # new focus
end

#unload ⇒ Object 



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# File 'lib/command-t/controller.rb', line 299

def unload
  @match_window.unload
end

#vsplit_command ⇒ Object 



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# File 'lib/command-t/controller.rb', line 331

def vsplit_command
  VIM::get_string('g:CommandTAcceptSelectionVSplitCommand') || 'CommandTOpen vsplit'
end