kimura wataru
kimur****@i*****
Thu Apr 27 23:52:27 JST 2006
Hi,
Some functions of AppKit requires an instance of NSApplication. So
we write scripts like sample/HelloWorld.rb.
(1)prepare a delagete object of NSApplication
(2)create a new app with NSApplication.sharedApplication
(3)set (1) as delegate of (2)
(4)run (2)
I wrote a method for ease to write procedures working with NSApplication.
How about this?
I feel it is inconvenient that a process must be exited after
executing passed block, but we can get some benefits from this method.
[example]
----
require 'osx/cocoa'
OSX::NSApplication.run_with_temp_app {
choice = OSX::NSRunAlertPanel("title", "message", "YES", "NO", nil)
puts choice # button "YES": 1(NSAlertDefaultReturn),
# button "NO": 0(NSAlertAlternateReturn)
}
----
[implementation]
----
module OSX
def NSApplication.run_with_temp_app(&proc)
# prepare delegate
delegate = Class.new(OSX::NSObject).alloc.init
def delegate.applicationDidFinishLaunching(sender)
begin
@proc.call
ensure
if $!
$stderr.puts "error: " + $!.to_s
$stderr.puts $!.backtrace
end
OSX::NSApplication.sharedApplication.terminate(self)
end
end
def delegate.proc=(block)
@proc = block
end
delegate.proc = proc
# run a new app
app = NSApplication.sharedApplication
app.setDelegate(delegate)
app.run
end
end
----
--
kimura wataru