Code coverage report for code/stores/palette-store.coffee

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resizeImage    = require '../utils/resize-image'
initialPalette = require '../data/initial-palette'
initialLibrary = require '../data/internal-library'
UndoRedo       = require '../utils/undo-redo'
 
 
# TODO: Maybe loadData goes into some other action-set
paletteActions = Reflux.createActions(
  [
    "addToPalette", "loadData", "selectPaletteIndex",
    "deselect", "restoreSelection", "itemDropped",
    "update", "deleteSelected"
  ]
)
 
paletteStore   = Reflux.createStore
  listenables: [paletteActions]
 
  init: ->
    @initializeLibrary()
    @initializePalette()
    # prepare a template for new library items
    @blankMetadata =
      source: 'external'
      title: 'blank'
      link: ''
      license: ''
    @imageMetadata = _.clone @blankMetadata, true
    @undoManger = UndoRedo.instance debug:true
 
  initializeLibrary: ->
    @library = {}
    for node in initialLibrary
      @addToLibrary node
 
  initializePalette: ->
    @palette = []
    for node in initialPalette
      @addToPalette node
    @selectPaletteIndex(0)
    @updateChanges()
 
  standardizeNode: (node) ->
    node.image    ||= ""
    node.key      ||= node.image.substr(0,400)
    node.metadata ||= _.clone @blankMetadata, true
 
  addToLibrary: (node) ->
    Eunless @inLibrary(node)
      @standardizeNode(node)
      @library[node.key] = node
      resizeImage node.image, (dataUrl) ->
        node.image = dataUrl
      log.info "library: #{@library}"
 
  onLoadData: (data) ->
    # reload the palette
    @palette = []
    if data.palette
      for p_item in data.palette by -1
        @addToPalette p_item
    @updateChanges()
 
  onUpdate: (data) ->
    if @selectedPaletteItem
      @selectedPaletteItem = _.merge @selectedPaletteItem, data
    else
      @selectedPaletteItem = data
    @updateChanges()
 
 
  onDeleteSelected: ->
    paletteItem = @selectedPaletteItem
    if paletteItem
 
      @undoManger.createAndExecuteCommand 'deletePaletteItem',
        execute: =>
          @palette = _.without @palette, paletteItem
          @deselect()
          @updateChanges()
        undo: =>
          @addToPalette(paletteItem)
          @updateChanges()
 
  addToPalette: (node) ->
    # ensure its in our library first
    @addToLibrary(node)
    Eif not @inPalette node
      @palette.push node
      @moveToFront(@palette.length-1)
      @selectPaletteIndex(0)
 
  onAddToPalette: (node) ->
    @undoManger.createAndExecuteCommand 'addPaletteItem',
      execute: =>
        @addToPalette(node)
        @updateChanges()
      undo:  =>
        @palette = _.without @palette, node
        @deselect()
        @updateChanges()
 
 
  onSelectPaletteIndex: (index) ->
    # @moveToFront(index) if we want to add the selected item to front
    @selectPaletteIndex(index)
    @updateChanges()
 
  selectPaletteIndex: (index) ->
    @lastSelection = @selectedIndex = index
    @selectedPaletteItem  = @palette[index]
    Eif @selectedPaletteItem
      @selectedPaletteImage = @selectedPaletteItem.image
    else
      @deselect() # if we tried to select something non-existent, deselect.
 
  deselect: ->
    @lastSelection = @selectedIndex
    @selectedPaletteIndex = -1
    @selectedPaletteItem  = null
 
  onDeselect: ->
    @deselect()
    # @updateChanges()
 
  onRestoreSelection: ->
    if @lastSelection > -1
      @selectPaletteIndex @lastSelection
    else @selectPaletteIndex 0
    @updateChanges()
 
  onSetImageMetadata: (image, metadata) ->
    log.info "Set Image metadata called"
    @addToLibrary(image)
    libraryItem = @inLibrary(image)
    if libraryItem
      libraryItem.metadata = metadata
      @imageMetadata = libraryItem.metadata
      @updateChanges()
    else
      alert "cant find library item"
 
  moveToFront: (index) ->
    @palette.splice(0, 0, @palette.splice(index, 1)[0])
 
  inPalette: (node) ->
    _.find @palette, {key: node.key}
 
  inLibrary: (node) ->
    @library[node.key]
 
  updateChanges: ->
    data =
      palette: @palette
      library: @library
      selectedPaletteIndex: @selectedIndex
      selectedPaletteItem: @selectedPaletteItem
      selectedPaletteImage: @selectedPaletteImage
      imageMetadata: @imageMetadata
 
    log.info "Sending changes to listeners: #{JSON.stringify(data)}"
    @trigger(data)
 
mixin =
  getInitialState: ->
    palette: paletteStore.palette
    library: paletteStore.library
    selectedPaletteItem: paletteStore.selectedPaletteItem
    selectedPaletteIndex: paletteStore.selectedPaletteIndex
    selectedPaletteImage: paletteStore.selectedPaletteImage
    imageMetadata: paletteStore.imageMetadata
 
  componentDidMount: ->
    paletteStore.listen @onPaletteChange
 
  onPaletteChange: (status) ->
    @setState
      palette: status.palette
      library: status.library
      selectedPaletteIndex: status.selectedPaletteIndex
      selectedPaletteItem: status.selectedPaletteItem
      selectedPaletteImage: status.selectedPaletteImage
      imageMetadata: status.imageMetadata
 
module.exports =
  actions: paletteActions
  store: paletteStore
  mixin: mixin
 
window.PaletteStore = module.exports