凸.waitForSomething

waitForSomething.js

var 凸 = (function(凸) {
	"use strict";
	var id = 0,
		waitForSomething = function (obj) {
			obj = obj || {};
			obj.c = obj.c || 1;
			obj.cMax = obj.cMax || 10;
			obj.verbose = obj.verbose || false;
			obj.id = obj.id === undefined ? id++ : obj.id;
			var	log = function(text, text2) {
					text2 = text2 || (obj.c === 1 ? 'START' : '  ');
					if (obj.verbose)
						console.log(text2 + 'id:' + obj.id + ' #' + obj.c + ' [' + obj.name + '] ' + text + ' [' + obj.waitFor(obj) + ']');
				};
			if (obj.c > obj.cMax) {
				log('giving up', 'END');
			} else {
				if( obj.waitFor(obj) ) {
					log('will execute thenDo', 'END');
					return obj.thenDo( obj );
				}
				else {
					var ms = Math.pow( 2, obj.c ) * 2 + 50;
					log('will try again in ' + ms + 'ms');
					obj.c++;
					setTimeout(function () {
						waitForSomething(obj);
					}, ms);
				}
			}
		};
	凸.waitForSomething = waitForSomething;
	return 凸;
}(凸 || {}));