Module: Bacon::Helpers

Included in:
Context
Defined in:
lib/mac_bacon/helpers.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.converted_xibs ⇒ Object

A cache of XIB files converted to the compiled NIB format.



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# File 'lib/mac_bacon/helpers.rb', line 6

def self.converted_xibs
  @converted_xibs ||= {}
end

.ensure_nib(path) ⇒ Object

Checks if the given file path points to a compiled NIB file and if so returns the same path. If it’s a XIB file it will be compiled with ibtool as a tmp file and the new path will be returned instead.



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# File 'lib/mac_bacon/helpers.rb', line 13

def self.ensure_nib(path)
  if File.extname(path) == '.xib'
    if cached = Helpers.converted_xibs[path]
      cached
    else
      xib_path, nib_path = path, File.join(Dir.tmpdir, "#{Time.now.to_i}.nib")
      unless system("/usr/bin/ibtool '#{xib_path}' --compile '#{nib_path}'")
        raise "Unable to convert XIB (to temporary NIB) at path `#{xib_path}'"
      end
      Helpers.converted_xibs[xib_path] = nib_path
      nib_path
    end
  else
    path
  end
end

Instance Method Details

#load_nib(nib_path, files_owner) ⇒ Object

Loads the NIB at nib_path with the specified files_owner as the File's owner.

All top-level objects in the NIB are returned as an array, although you’ll generally just deal with the controller, in which case you can ignore them.

describe "PreferencesController" do
  before do
    @controller = PreferencesController.new
    nib_path = File.join(SRC_ROOT, 'app/views/PreferencesWindow.xib')
    @top_level_objects = load_nib(nib_path, @controller)
  end

  # tests...

end



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# File 'lib/mac_bacon/helpers.rb', line 47

def load_nib(nib_path, files_owner)
  nib_path = Helpers.ensure_nib(nib_path)
  url = NSURL.fileURLWithPath(nib_path)
  nib = NSNib.alloc.initWithContentsOfURL(url)
  top_level_objects = []
  nameTable = {
    NSNibOwner => files_owner,
    NSNibTopLevelObjects => top_level_objects
  }
  nib.instantiateNibWithExternalNameTable(nameTable)
  top_level_objects
end