Register a custom opener for ImageEditSessions on the Project class

src/app/image-edit-session.coffee

@@ -8,8 +8,16 @@ module.exports=
 class ImageEditSession
   registerDeserializer(this)
 
+  # Files with these extensions will be opened as images
+  @imageExtensions: ['.gif', '.jpeg', '.jpg', '.png']
+
   ### Internal ###
 
+  Project = require 'project'
+  Project.registerOpener (path) =>
+    new ImageEditSession(path) if _.include(@imageExtensions, fsUtils.extension(path))
+
+
   @deserialize: (state) ->
     if fsUtils.exists(state.path)
       project.open(state.path)
@@ -27,19 +35,6 @@ class ImageEditSession
 
   ### 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
-
   # Retrieves the filename of the open file.
   #
   # This is `'untitled'` if the file is new and not saved to the disk.

src/app/project.coffee

@@ -4,7 +4,6 @@ $ = require 'jquery'
 Range = require 'range'
 Buffer = require 'text-buffer'
 EditSession = require 'edit-session'
-ImageEditSession = require 'image-edit-session'
 EventEmitter = require 'event-emitter'
 Directory = require 'directory'
 BufferedProcess = require 'buffered-process'
@@ -160,10 +159,7 @@ class Project
     for opener in @constructor.openers
       return resource if resource = opener(filePath, options)
 
-    if ImageEditSession.canOpen(filePath)
-      new ImageEditSession(filePath)
-    else
-      @buildEditSessionForBuffer(@bufferForPath(filePath), options)
+    @buildEditSessionForBuffer(@bufferForPath(filePath), options)
 
   # Retrieves all the {EditSession}s in the project; that is, the `EditSession`s for all open files.
   #
@@ -311,3 +307,5 @@ class Project
       @on 'buffer-created', (buffer) -> callback(buffer)
 
 _.extend Project.prototype, EventEmitter
+
+require 'image-edit-session'