smalruby/smalruby-editor

<%
  require 'smalruby_editor'
  require 'smalruby_editor/blockly_message_helper'
%>

'use strict'

goog.provide('Smalruby.FieldCostume')

goog.require('Blockly.FieldDropdown')
goog.provide('Smalruby.FieldCharacter')


Smalruby.FieldCostume = (opt_character, opt_changeHandler) ->
  @character = Smalruby.FieldCharacter.NullCharacter
  @costumeIndex = 0
  if opt_character
    @setCharacter(opt_character)

  if opt_changeHandler
    changeHandler = (value) =>
      retVal = Smalruby.FieldCostume.dropdownChange.call(@, value)
      if retVal
        newVal = retVal
      else
        retVal = @getValue()
      opt_changeHandler.call(@, newVal)
      retVal
  else
    changeHandler = Smalruby.FieldCostume.dropdownChange

  Smalruby.FieldCostume.superClass_.constructor
    .call(@, Smalruby.FieldCostume.dropdownCreate, changeHandler)

goog.inherits(Smalruby.FieldCostume, Blockly.FieldDropdown)

Smalruby.FieldCostume.prototype.setCharacter = (character) ->
  return if character == @character

  @character.off('change:costumeNames', @onCharacterChangeCostumeNames_, @)
  @character = if character then character else Smalruby.FieldCharacter.NullCharacter
  @character.on('change:costumeNames', @onCharacterChangeCostumeNames_, @)

  @costumeIndex = 0
  @setValue(@character.costumeName(@costumeIndex))

Smalruby.FieldCostume.prototype.onCharacterChangeCostumeNames_ = (model, costumeNames, options) ->
  if @costumeIndex < costumeNames.length
    @setValue(costumeNames[@costumeIndex])
  else
    @setValue(costumeNames[0])
    @costumeIndex = 0

Smalruby.FieldCostume.prototype.clone = ->
  new Smalruby.FieldCostume(null, @changeHandler_)

Smalruby.FieldCostume.prototype.dispose = ->
  @setCharacter(Smalruby.FieldCharacter.NullCharacter)

  Blockly.FieldDropdown.prototype.dispose.call(@)

Smalruby.FieldCostume.prototype.getCharacterFromParentBlocks_ = ->
  block = @sourceBlock_
  while block
    if block.getCharacter
      return block.getCharacter()
    block = block.getSurroundParent()

  Smalruby.FieldCharacter.NullCharacter

Smalruby.FieldCostume.dropdownCreate = ->
  @setCharacter(@getCharacterFromParentBlocks_())
  ([costume, costume] for costume in @character.get('costumeNames'))

Smalruby.FieldCostume.dropdownChange = (value) ->
  costumeIndex = -1
  if (costumeNames = @character.get('costumeNames'))
    costumeIndex = _.indexOf(costumeNames, value)
  if costumeIndex == -1
    @costumeIndex = 0
    null
  else
    @costumeIndex = costumeIndex
    value