lib/ios/assets.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 # Implementation of `app::assets`
  16 module assets
  17
  18 import cocoa
  19 import app::assets
  20
  21 redef class TextAsset
  22         redef fun load
  23         do
  24                 # Find file
  25                 var ns_path = ("assets"/path).to_nsstring
  26                 var path_in_bundle = asset_path(ns_path)
  27                 if path_in_bundle.address_is_null then
  28                         self.error = new Error("TextAsset at '{path}' not found")
  29                         self.to_s = ""
  30                         return ""
  31                 end
  32
  33                 # Load content
  34                 var text = asset_content(path_in_bundle)
  35                 if text.address_is_null then
  36                         self.error = new Error("Failed to read content of TextAsset at '{path}'")
  37                         self.to_s = ""
  38                         return ""
  39                 end
  40
  41                 return text.to_s
  42         end
  43 end
  44
  45 private fun asset_path(path: NSString): NSString in "ObjC" `{
  46         return [[NSBundle mainBundle] pathForResource:path ofType:nil];
  47 `}
  48
  49 private fun asset_url(path: NSString): NSObject in "ObjC" `{
  50         return [[NSBundle mainBundle] URLForResource:path withExtension:nil];
  51 `}
  52
  53 private fun asset_content(path: NSString): NSString in "ObjC" `{
  54         return [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
  55 `}