Class: Menu

Inherits:
Object show all
Defined in:
lib/xiki/menu.rb

Constant Summary collapse

ROOT_MENU = 
'Keys'
@@loaded_already = 
{}

Class Method Summary collapse

Class Method Details

.[](path) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 432

def self.[] path
  path, rest = path.split '/', 2

  self.call path, rest
end

.add_item(menu, name, function) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 770

def self.add_item menu, name, function

  menu_spaces = menu.join(' ').downcase
  lisp = "
    (define-key global-map
      [menu-bar #{menu_spaces} #{function}]
      '(\"#{name}\" . #{function}))
  "
  $el.el4r_lisp_eval lisp
end

.add_menu(*name) ⇒ Object

The following 3 methods are for the menu bar

- a different use of the "Menu" class

TODO move them into menu_bar.rb ?



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# File 'lib/xiki/menu.rb', line 754

def self.add_menu *name
  menu_spaces = name.join(' ').downcase
  menu_dashes = name.join('-').downcase
  name = name[-1]

  lisp = %Q<
    (define-key global-map
      [menu-bar #{menu_spaces}]
      (cons "#{name}" (make-sparse-keymap "#{menu_dashes}")))
  >
  $el.el4r_lisp_eval lisp

  menu = $el.elvar.menu_bar_final_items.to_a
  $el.elvar.menu_bar_final_items = menu.push(name.downcase.to_sym)
end

.append_line(name, addition) ⇒ Object

Create simple .menu file if it doesn’t exist, otherwise add line to it.

Menu.append_line “menu name”, “- text to add”



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# File 'lib/xiki/menu.rb', line 826

def self.append_line name, addition #, options={}

  name.gsub! /\W/, '_'

  # Default to ~/menu
  # If menu there, create, otherwise append

  # Get existing
  dir = File.expand_path "~/menu"
  Dir.mkdir dir if ! File.exists? dir

  file = File.expand_path "#{dir}/#{name}.menu"
  txt = File.read(file) rescue ""

  if txt =~ /^#{Regexp.escape addition}$/
    return ".flash - was already there!"
  end

  # Append to end (might be blank)

  txt << "#{addition}\n"

  # Save
  File.open(file, "w") { |f| f << txt }

  "- saved setting!"
end

.as_menu ⇒ Object 



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# File 'lib/xiki/menu.rb', line 529

def self.as_menu
  orig = View.cursor

  Tree.to_root

  root, left = Line.value, View.cursor
  root = Line.without_label :line=>root

  root = TextUtil.snake_case(root).sub(/^_+/, '')

  if Line.value(2) =~ /^ +\| Supply a few items here/   # If sample text, remove
    Line.next
    while Line.=~(/^ +\| /)
      Line.delete
    end
    Line.previous
    orig = nil
  end

  Tree.after_children
  right = View.cursor
  View.cursor = left

  # Go until end of paragraph (simple for now)
  Effects.blink :left=>left, :right=>right
  txt = View.txt left, right
  txt.sub! /.+\n/, ''
  txt.gsub! /^  /, ''
  txt.unindent

  return Tree << "| You must supply something to put under the '#{root}' menu.\n| First, add some lines here, such as these:\n- line/\n- another line/\n" if txt.empty?

  path = File.expand_path "~/menu/#{root}.menu"

  file_existed = File.exists? path

  if file_existed
    treeb = File.read path
    txt = Tree.restore txt, treeb

    DiffLog.save_diffs :patha=>path, :textb=>txt
  end

  File.open(path, "w") { |f| f << txt }

  View.cursor = orig if orig

  require_menu path

  View.flash "- #{file_existed ? 'Updated' : 'Created'} ~/menu/#{root}.menu", :times=>3
  nil
end

.call(root, rest = nil) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 438

def self.call root, rest=nil
  root = root.gsub /[ +]/, '_'
  menus = Launcher.menus
  block = menus[0][root] || menus[1][root]
  return if block.nil?
  Tree.output_and_search block, :line=>"#{root}/#{rest}", :just_return=>1
end

.collapser_launcher ⇒ Object 



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# File 'lib/xiki/menu.rb', line 602

def self.collapser_launcher

  line = Line.value
  arrows = line[/<+/].length
  arrows -= 1 if arrows > 1   # Make "<<" go back just 1, etc.

  #     line.sub! /(^ +)= /, "\\1< "   # Temporarily get "=" to work too
  line = Line.without_label :line=>line

  skip = line.empty? && arrows - 1

  Line.sub! /^(  +)<+ .+/, "\\1- "   # Delete after bullet to prepare for loop

  arrows.times do |i|

    # If no items left on current line, jump to parent and delete
    if Line =~ /^[ +-]+$/
      Tree.to_parent
      Tree.kill_under
      Move.to_end
    end

    unless i == skip   # Remove last item, or after bullet if no items
      Line.sub!(/\/[^\/]+\/$/, '/') || Line.sub!(/^([ @+-]*).*/, "\\1")
    end
  end

  if Line.indent.blank?
    line.sub! /^@ ?/, ''
    Line.sub! /^@ ?/, ''
  end

  Line << line unless skip
  Launcher.launch

end

.create(*args) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 90

def self.create *args
  type = args[0]

  return self.create_here if type == "here"
  return self.create_class if type == "class"
  return self.create_more(*args.drop(1)) if type == "more"

  "- unknown option #{type} passed to .create!"
end

.create_class ⇒ Object 



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# File 'lib/xiki/menu.rb', line 144

def self.create_class
  trunk = Xiki.trunk
  if wrapper = trunk[-2]
    # Just do in-line
    menu = TextUtil.snake_case Tree.root(wrapper)
  else
    menu = 'foo'
  end

  Xiki.dont_search

  Tree << %`
    | Update this sample class to your liking. Then do as+update (type
    | Ctrl-a, Ctrl-u) to create the '#{menu}' class file.
    - @~/menu/
      - #{menu}.rb
        | class #{TextUtil.camel_case(menu)}
        |   def self.menu *args
        |     "- Args Passed: \#{args.inspect}\\n- Customize me in) @ ~/menu/#{menu}.rb"
        |   end
        | end
    - more examples) @menu/api/classes/
    `
  nil
end

.create_here ⇒ Object 



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# File 'lib/xiki/menu.rb', line 100

def self.create_here

  # TODO: Handle various use cases
    # "menu/create/here/" at left margin
    # "@menu/create/here/" nested
    # "menu/create/\n  here/" at left margin
    # "@menu/create/\n  here/" nested

  trunk = Xiki.trunk
  if wrapper = trunk[-2]   # If @menu/create/here is nested
    menu = Tree.root wrapper
  else   # If put it under a fake menu

    # What?  This is if it's not nested? - is this used?

    # TODO: Go to left margin and remove menu...

    Tree.to_root

    Tree.kill_under
    menu = "foo"
    Line.sub! /([ +-]*).*/, "\\1#{menu}/"
    # Insert it wherever we are
  end
  Xiki.dont_search

  name_text = menu == "foo" ?
    "and change '#{menu}' to something" :
    "to go under the '#{menu}' menu"

  snake = TextUtil.snake_case menu

  Tree << "
    | Supply a few items here. Then do as+menu (type Ctrl-a Ctrl-m) to create
    | the '#{menu}' menu. Or, just create '~/menu/#{snake}.menu' yourself.
    - example item/
      - another/
    - and another/
    "

  nil

end

.creating(*args) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 300

def self.creating *args
  txt = %q`
    > Summary
    | How to make your own Xiki menus.  This is strongly encouraged!  Make
    | a bunch of menus for all the various things you do, if you're so
    | inclined.  You can make menus for from simple notes, to powerful
    | CRUD interfaces etc. for controlling external tools.
    |
    - Pretend they exist/
      | The easiest way to create new menus is to type them and open them as
      | though they exist.  Xiki will then guide you through turning them
      | into actual menus.
      |
      | The simplest option is the first one it shows you.  You can just type
      | menu items inline to create the menu.  For example, you could type
      | this:
      |
      | milkshakes/
      |   - chocolate/
      |   - vanilla/
      |
      | And then with your cursor on one of these lines you could type
      | Ctrl-a Ctrl-m (for "as menu") to turn it into an actual menu.  Then,
      | the next time you type "milkshakes" and open it, it would show the
      | menu items.  For this menu to be useful, you'll probably want to add
      | more items underneath them, or open the items to be prompted to
      | create a ruby class to run when they're opened in the future.
      |
    - Screencasts/
      | Check out these two points in one of the xiki screencast to see
      | creating menus in action:
      |
      @http://www.youtube.com/watch?v=bUR_eUVcABg#t=1m30s
      @http://www.youtube.com/watch?v=bUR_eUVcABg#t=1m57s
      |
    - Creating .menu files/
      | You can make menus without code, by just putting "whatever.menu" files
      | in the "menu" dir in your home dir.
      |
      | For example you could create a "drinks.menu" file, like the following.
      | (The "|" characters aren't actually in the file).
      |
      | ~/menu/
      |   - drinks.menu
      |     | - fruit/
      |     |   - lemonade/
      |     |   - smoothie/
      |     | - caffeinated/
      |     |   - coffee/
      |     |   - tea/
      |
      | Then when you type drinks on a line and open it, it will look like
      | this:
      |
      | drinks/
      |   + fruit/
      |   + caffeinated/
      |
    - Delegating/
      | You can make simple menus that delegate to other things, using the
      | "@" character.  For example:
      |
      | ~/menu/
      |   - foo.menu
      |     | - @other menu/
      |     | - @MyClass.my_method
      |     | @$ shell command
      |
    - Wiki elements/
      | You can put wiki elements in menus, like headings, paragraphs and
      | bullet points.  Thus you can make a menu just to store notes:
      |
      | shopping list/
      |   > Grocery
      |   - Eggs
      |   - Vodka
      |
      |   > Pet store
      |   Not sure yet.  Maybe just a bunch of snakes.
      |
    - Creating .rb files/
      | Create ruby files in ~/menu/ to make dynamic menus.  The .menu class
      | method will be invoked.  Example:
      |
      | ~/menu/
      |   - pie.rb
      |     | class Pie
      |     |   def self.menu *args
      |     |     "
      |     |     - fruit/
      |     |       - apple/
      |     |       - pumpkin/
      |     |     - nuts/
      |     |     "
      |     |   end
      |     | end
      |
      | To make a menu run a method, put a dot in front of it:
      |
      | ~/menu/
      |   - pie.rb
      |     | class Pie
      |     |   def self.menu *args
      |     |     "
      |     |     - fruit/
      |     |       - apple/
      |     |       - pumpkin/
      |     |     - .nuts/
      |     |     "
      |     |   end
      |     |   def self.nuts *args
      |     |     # Put any code here.  The string you return will be inserted
      |     |     # into the tree.
      |     |     "- pecan/\n- pecan/"
      |     |   end
      |     | end
      |
      |
      > For more info, see:
      @menu/api/
      |
    `

  Tree.children(txt, args.join('/'))
end

.do_as_menu ⇒ Object

Moves item to root of tree (replacing tree), then launches.



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# File 'lib/xiki/menu.rb', line 721

def self.do_as_menu
  line = Line.value

  do_launch = false

  txt =
    if line =~ /^ *\|/   # If on quoted line, will grab all quoted siblings and unquote
      Tree.siblings :string=>1
    elsif line =~ /^[ +-]*@/ && Tree.has_child?   # If on ^@... line and there's child on next line...
      # Will grab the whole tree and move it up
      Tree.subtree.unindent.sub(/^[ @+-]+/, '')
    else
      do_launch = true
      Tree.path.last
    end

  Keys.prefix_u ? Tree.to_root : Tree.to_root(:highest=>1)
  Tree.kill_under

  Line.sub! /^([ @]*).+/, "\\1#{txt}"

  return if ! do_launch

  # replace line with menu

  Launcher.launch
end

.external(menu, options = {}) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 511

def self.external menu, options={}

  View.message ""

  View.wrap :off

  # IF nothing passed, must want to do tiny search box
  if menu.empty?
    Launcher.open ""
    View.message ""
    View.prompt "Type anything", :timed=>1, :times=>2 #, :color=>:rainbow

    Launcher.launch
  else
    Launcher.open menu, options
  end
end

.init ⇒ Object 



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# File 'lib/xiki/menu.rb', line 783

def self.init

  return if ! $el

  Mode.define(:menu, ".menu") do
    Notes.mode
  end

  add_menu ROOT_MENU

  menus = [
    [ROOT_MENU, 'To'],
    [ROOT_MENU, 'Open'],
    [ROOT_MENU, 'Layout'],
    [ROOT_MENU, 'As'],
    [ROOT_MENU, 'Enter'],
    [ROOT_MENU, 'Do'],
    [ROOT_MENU, 'Search']
  ]
  menus.reverse.each do |tuple|
    add_menu tuple[0], tuple[1]
  end
end

.install(*args) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 78

def self.install *args
  Xiki.dont_search
    '
    > TODO
    | implement this.

    - Look in gem dirs for installed gems with this name
    - Google search for xiki menu on web
      @google/"foo.menu"
    '
end

.line_exists?(name, pattern) ⇒ Boolean

Whether line exists in menu

p Menu.line_exists? “menu name”, /^- text to add$/ p Menu.line_exists? “menu name”, /^- text to (.+)$/

Returns:

  • (Boolean) 


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# File 'lib/xiki/menu.rb', line 813

def self.line_exists? name, pattern #, options={}
  name.gsub! /\W/, '_'
  dir = File.expand_path "~/menu"
  file = File.expand_path "#{dir}/#{name}.menu"
  txt = File.read(file) rescue ""
  txt =~ pattern ? ($1 || $&) : nil   # Return whole string or group
end

.load_if_changed(file) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 584

def self.load_if_changed file
  return :not_found if ! File.exists?(file)
  previous = @@loaded_already[file]
  recent = File.mtime(file)

  if previous == nil
    #       require file
    load file
    @@loaded_already[file] = recent
    return
  end

  return if recent <= previous

  load file
  @@loaded_already[file] = recent
end

.menu ⇒ Object 



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# File 'lib/xiki/menu.rb', line 3

def self.menu
  '
  - history/
    - @log/
    - @last/
  - @all/
  - .create/
    - here/
    - class/
  - .install/
    - gem/
  - .setup/
    - @~/menu/
    - @$x/menu/
    - .reload_menus/
  - .api/
    > Summary
    | How to use ruby code to define menus.
    |
    | You can create sophisticated menus backed by classes, or by using other
    | simple means:
    - .classes/
      - .simple class/
      - .menu with method/
      - .menu with two methods/
    - other/
      - With a string/
        |
        |   Menu.fish :menu=>"- salmon/\n- tuna/\n  - yellow fin/"
        |
        Try it out by typing 1 do_ruby (C-1 Ctrl-d Ctrl-r) while on it, then
        double-clicking on this menu to see what happens:
        |
        @fish/
        |
      - Delegating to an existing menu/
        |
        |   Menu.critters :menu=>"foo/animals"
        |
        @critters/
        |
      - Using a block/
        |
        |   Menu.foo do
        |     "hey/"
        |   end
        |
        The block can optionally take a |path| param to handle multiple levels
        of nesting.
        |
        |   Menu.foo do |path|
        |     "hey/#{path}"
        |   end
        |
      - Extract menu text from somewhere/
        | Tree.children just expects text that is in the form of a menu (lines with
        | 2-space indenting for nesting). So, the text can be pulled from
        | anywhere, such as a part of a larger file:
        |
        | Menu.lawn do |path|
        |   menu = Notes.read_block("/tmp/garage.notes", "> Lawn")
        |   Tree.children menu, Tree.rootless(path)
        | end
        |
    |
    | If you want to create a very simple menu you can do so without code,
    | by just putting the menu in a file such as ~/menu/foo.menu. See:
    |
    << docs/creating/
  - .docs/
    - .using/
    - .creating/
  '
end

.menu_to_hash(txt) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 689

def self.menu_to_hash txt
  txt = File.read txt if txt =~ /\A\/.+\z/   # If 1 line and starts with slash, read file

  txt.gsub(/^\| /, '').split("\n").inject({}) do |o, txt|
    txt = txt.split(/ : /)
    o[txt[0]] = txt[1]
    o
  end

end

.menu_with_method(*args) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 186

def self.menu_with_method *args
  root = 'foo'
  trunk = Xiki.trunk
  root = TextUtil.snake_case(trunk[-2][/^[\w -]+/]) if trunk.length > 1   # If nested path (due to @), grab root of parent

  %`
  - @~/menu/
    - #{root}.rb
      | class #{TextUtil.camel_case(root)}
      |   def self.menu
      |     "
      |     - cake/
      |       - chocolate/
      |     - .pie/
      |     "
      |   end
      |
      |   def self.pie
      |     "- apple/"
      |   end
      | end
  `
end

.menu_with_two_methods(*args) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 210

def self.menu_with_two_methods *args
  root = 'foo'
  trunk = Xiki.trunk
  root = TextUtil.snake_case(trunk[-2][/^[\w -]+/]) if trunk.length > 1   # If nested path (due to @), grab root of parent

  %`
  - @~/menu/
    - #{root}.rb
      | class #{TextUtil.camel_case(root)}
      |   def self.menu
      |     "
      |     - sammiches/
      |       - ham/
      |         - .buy/
      |       - tofu/
      |         - .buy/
      |     - .checkout/
      |       - cash/
      |       - credit/
      |     "
      |   end
      |   def self.buy category, item
      |     "- buying \#{item} \#{category}"
      |   end
      |   def self.checkout kind
      |     "- checking out as \#{kind}..."
      |   end
      | end
      |
  `
end

.method_missing(*args, &block) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 446

def self.method_missing *args, &block
  Launcher.method_missing *args, &block
  "- defined!"
end

.reload_menus ⇒ Object 



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# File 'lib/xiki/menu.rb', line 426

def self.reload_menus
  Launcher.reload_menu_dirs
  View.flash
  nil
end

.replacer_launcher ⇒ Object 



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# File 'lib/xiki/menu.rb', line 664

def self.replacer_launcher
  Line.sub! /^( +)<+= /, "\\1+ "

  # Run in place, grab output, then move higher and show output

  orig = View.line
  Launcher.launch :no_search=>1

  # If didn't move line, assume it had no output, and it's collapse things itself
  return if orig == View.line

  # If it inserted something
  # output = Tree.siblings :everything=>1
  output = Tree.siblings :cross_blank_lines=>1, :everything=>1

  # Shouldn't this be looping like self.collapser_launcher ?
  Tree.to_parent
  Tree.to_parent
  Tree.kill_under :no_plus=>1
  Tree << output

  # TODO: do search now, after insterted?

end

.root_collapser_launcher ⇒ Object 



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# File 'lib/xiki/menu.rb', line 639

def self.root_collapser_launcher

  View.cursor


  # Grab line
  line = Line.value

  arrows = line[/<+/].length

  line.sub!(/ *<+@ /, '')

  # Go up to root, and kill under
  arrows.times { Tree.to_root }
  Tree.kill_under

  # Insert line, and launch
  old = Line.delete :leave_linebreak
  old.sub! /^( *).+/, "\\1"
  old << "@" if old =~ /^ /   # If any indent, @ is needed
  View << "#{old}#{line}"

  Launcher.launch
end

.simple_class(*args) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 170

def self.simple_class *args
  root = 'foo'
  trunk = Xiki.trunk
  root = TextUtil.snake_case(trunk[-2][/^[\w -]+/]) if trunk.length > 1   # If nested path (due to @), grab root of parent

  %`
  - @~/menu/
    - #{root}.rb
      | class #{TextUtil.camel_case(root)}
      |   def self.menu *args
      |     "- args passed: \#{args.inspect}\n- Customize me in) @ ~/menu/#{menu}.rb"
      |   end
      | end
  `
end

.split(path, options = {}) ⇒ Object

Menu.split(“aa/|b/b/|c/c”)



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# File 'lib/xiki/menu.rb', line 454

def self.split path, options={}
  path = path.sub /\/$/, ''
  path = Tree.rootless path if options[:rootless]

  return [] if path.empty?

  groups = path.split '/|', -1

  result = groups[0] =~ /^\|/ ?
    [groups[0]] :
    groups[0].split('/', -1)

  result += groups[1..-1].map{|o| "|#{o}"}
end

.to_menu ⇒ Object 



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# File 'lib/xiki/menu.rb', line 469

def self.to_menu
  # Take best guess, by looking through dirs for root
  trunk = Xiki.trunk

  return View.<<("- You weren't on a menu\n  | To jump to a menu's implementation, put your cursor on it\n  | (or type it on a blank line) and then do as+menu (ctrl-a ctrl-m)\n  | Or, look in one of these dirs:\n  - ~/menu/\n  - $xiki/menu/") if trunk[-1].blank?

  root = trunk[0][/^[\w _-]+/]

  root = trunk[-1][/^[\w _-]+/] if ! Keys.prefix_u

  root.gsub!(/[ -]/, '_') if root

  root.downcase!

  (["#{Xiki.dir}lib/"]+Launcher::MENU_DIRS).reverse.each do |dir|
    next unless File.directory? dir
    file = Dir["#{dir}/#{root}.*"]
    next unless file.any?
    return View.open file[0]
  end

  #     message = "
  #       - No menu found:
  #         | No \"#{root}\" menu or class file found in these dirs:
  #         @ ~/menu/
  #         @ $x/menu/
  #         ".unindent

  # Should be able to get it right from proc

  proc = Launcher.menus[1][root]

  return View.flash "- Menu 'root' doesn't exist!", :times=>4 if ! proc

  location = proc.source_location # ["./firefox.rb", 739]
Ol << "location: #{location.inspect}"
  # location[0].sub! /^\.\//, Xiki.dir
  View.open location[0].sub(/^\.\//, Xiki.dir)
  View.line = location[1]

end

.using(*args) ⇒ Object 



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# File 'lib/xiki/menu.rb', line 242

def self.using *args
  txt = %`
    > Summary
    | How to use Xiki menus.  Xiki menus are menus you type, not menu bar.
    |
    | All xiki menus can be used the same way.  Just type something and
    | double-click on it (or type Ctrl-enter while the cursor is on the line)
    | to open the menu.
    |
    - example/
      | 1: Type "sammiches" on a line (the "@" isn't necessary when the line
      |    isn't indented)
      @sammiches
      |
      | 2: Double-click (or Ctrl-enter) on it to open it. You can try it on
      |    the line above.  It will look like this:
      | @sammiches/
      |   + meat/
      |   + veggie/
      |   + checkout/
      |
      | 3: Double-click to open items. It will look like this:
      | @sammiches/
      |   + meat/
      |   + veggie/
      |     + cucumber/
      |     + bark/
      |   + checkout/
      |
    - mouse/
      | You can click on the "bullets" (the - and + at the beginnings of lines)
      | to expand and collapse.  You can also double-click to expand and
      | collapse.
      |
    - keyboard/
      | You can do everything with the keyboard that you can do with the mouse.
      | Type Ctrl-enter while your cursor is on the same line as a menu or menu
      | item to open it.  Or, if it already has things under it, it will collapse.
      |
      | Right after you open a menu, some keys you type have special meaning. This
      | is the case whether you you used the mouse or keyboard to open the menu.
      | The cursor turns into a block to indicate this.
      |
      | Special keys right after opening:
      - search to narrow down/
        | If you type numbers and letters, it incrementally narrows down the list.
      - opening/
        | Return - opens menu item cursor is on
        | Tab - opens, hiding the other items at that level
        | Ctrl-/ - opens, moving the item onto the same line as its parent
        | Ctrl-1, Ctrl-2, Ctr-3, etc. - opens the nth item
        | Ctrl-G: stops searching
        |
    `

  Tree.children txt, args
end