Managing NSWindows using controllers in RubyMotion - rubymotion

Question

How should you keep reference to an NSWindow from a controller? Closing the window will cause it to be deallocated and leaving the controller with a variable pointing to bad memory.
Essentially, this is the specification for the behavior:
describe "Opening and closing NSWindow" do
before do
#app = NSApplication.sharedApplication
#controller = MyWindowController.new
end
it "opens and closes the window" do
#controller.open
#app.windows.length.should == 1
#controller.close
#app.windows.length.should == 0
end
it "can reopen a new window" do
#controller.open
#controller.close
#controller.open # Crashes
#app.windows.length.should == 1
end
it "doesn't care how many times new windows are reopened" do
100.times do
#controller.open
#controller.close
end
#app.windows.length.should == 0
end
it "releases windows when closed" do
#controller.open
#controller.close
#controller.window.should == nil
end
end
Crashing implementation:
class MyWindowController
def open
#window = NSWindow.alloc.initWithContentRect(
NSMakeRect(200, 200, 200, 200),
styleMask: NSTexturedBackgroundWindowMask,
backing: NSBackingStoreBuffered,
defer: false
)
#window.orderFrontRegardless
end
def close
#window.close
end
def window
#window
end
end

Answer 1

class MyWindowController < UIViewController
def viewDidLoad
super.tap do
self.view.addSubview(myWindow)
end
end
def myWindow
#myWindow ||= NSWindow.alloc.initWithContentRect(
NSMakeRect(200, 200, 200, 200),
styleMask: NSTexturedBackgroundWindowMask,
backing: NSBackingStoreBuffered,
defer: false
).tap do |window|
window.orderFrontRegardless
end
end
def close
myWindow.close
end
end