plugins.json.js

ig.module(
	'plugins.json'
)
.defines(function(){ "use strict";

ig.JSON = ig.Class.extend({
	data: null,
	path: '',
	
	
	staticInstantiate: function( path ) {
		return ig.JSON.cache[path] || null;
	},
	
	init: function( path ) {
		this.path = path;
		this.load();
	},
	
	
	load: function( loadCallback ) {
		if( this.loaded ) {
			if( loadCallback ) {
				loadCallback( this.path, true );
			}
			return;
		}
		else if( !this.loaded && ig.ready ) {
			this.loadCallback = loadCallback || null;
			
			var that = this;
			var req = new XMLHttpRequest();
			if( req.overrideMimeType ) {
				req.overrideMimeType("application/json");
			}
			req.onreadystatechange = function() {
				if( req.readyState == req.DONE && req.status == 200 ) {
					that.onload(req);
				}
				else if( req.readyStat == req.DONE && req.status != 200 ) {
					that.onerror(req);
				}
			};

			req.open('GET', ig.prefix + this.path + ig.nocache);
			req.send();
		}
		else {
			ig.addResource( this );
		}
		
		ig.JSON.cache[this.path] = this;
	},	
	
	onload: function( req ) {
		this.data = JSON.parse(req.responseText);
		this.loaded = true;
		
		if( this.loadCallback ) {
			this.loadCallback( this.path, true );
		}
	},
	
	
	onerror: function( req ) {
		this.failed = true;
		
		if( this.loadCallback ) {
			this.loadCallback( this.path, false );
		}
	}
});

ig.JSON.cache = {};

});