Files
atom/src/app/image-edit-session.coffee
2013-04-18 13:05:40 -07:00

71 lines
1.6 KiB
CoffeeScript

fsUtils = require 'fs-utils'
_ = require 'underscore'
# Public: Manages the states between {Editor}s, images, and the project as a whole.
#
# Essentially, the graphical version of a {EditSession}.
module.exports=
class ImageEditSession
registerDeserializer(this)
# Public: Identifies if a path can be opened by the image viewer.
#
# path - The {String} name of the path to check
#
# Returns a {Boolean}.
@canOpen: (path) ->
_.indexOf([
'.gif'
'.jpeg'
'.jpg'
'.png'
], fsUtils.extension(path), true) >= 0
###
# Internal #
###
@deserialize: (state) ->
if fsUtils.exists(state.path)
project.buildEditSession(state.path)
else
console.warn "Could not build edit session for path '#{state.path}' because that file no longer exists"
constructor: (@path) ->
serialize: ->
deserializer: 'ImageEditSession'
path: @path
getViewClass: ->
require 'image-view'
# Public: Retrieves the filename of the open file.
#
# This is `'untitled'` if the file is new and not saved to the disk.
#
# Returns a {String}.
getTitle: ->
if path = @getPath()
fsUtils.base(path)
else
'untitled'
# Public: Retrieves the URI of the current image.
#
# Returns a {String}.
getUri: -> @path
# Public: Retrieves the path of the current image.
#
# Returns a {String}.
getPath: -> @path
# Public: Compares two `ImageEditSession`s to determine equality.
#
# Equality is based on the condition that the two URIs are the same.
#
# Returns a {Boolean}.
isEqual: (other) ->
other instanceof ImageEditSession and @getUri() is other.getUri()