Outlets from a Javascript standpoint

In Javascript, you use document.getElementById('myObject') to get an object and change its visibility, style, … in fact, getElementById gets a pointer to the object you see on the page. Outlets are just like that : in your ObjC class, you use IBOutlet to define pointers to your interface objects. You don't have to call any getElementById as they will be automatically populated upon NIB loading.
@interface ApplicationController : NSObject {
	// Define an outlet to a textfield
	IBOutlet	NSTextField*		textfield;

To connect your textfield variable, right-drag from your instance to the interface element you want a pointer to. After the NIB is loaded, you will then be able to interact with it, like change its value with [textfield setStringValue:@"set by code"]];.

Objective-C from Javascript

Follow me on Twitter
Planet Cocoa

2011 02 22Distance field
2010 07 202Binding through NSApp
2010 05 122Forwarding invocations
2010 02 272Core Image black fringes
2010 02 21Quickest Way to Shell
2010 02 08Who's calling ?
2009 09 2138 ways to use Blocks in Snow Leopard
2009 08 182Bracket Mess
2009 08 124Taming JavascriptCore within and without WebView
2009 04 15Debugging with Activity Monitor
2009 03 25How Core Image Color Tracking works
2009 03 1510Custom NSThemeFrame
2009 03 10Which framework is running ?
2009 03 074CoreUI can paint pretty big
2009 02 18Localization with functions
2009 01 30Did you forget to nest alloc and init?
2009 01 16JSCocoa on the iPhone
2009 01 11Mixing WebView and JavascriptCore
2009 01 09Badge overflow
2009 01 09Find your Garbage Collection leaks with Instruments

Powered by MediaWiki