tsScanCountPlugin

(function($) {

var tsScan = config.macros.tsScan;
var tiddlyspace = config.extensions.tiddlyspace;

var macro = config.macros.tsScanCount = {
	cache: true,
	countCache: {},
	handler: function(place, macroName, params, w, paramString, tiddler) {
		var container = $("<a href='#' class='button' />").attr("refresh", "macro").attr("macroName", macroName).appendTo(place)[0];
		$(container).data("params", paramString);
		macro.refresh(container);
	},
	refresh: function(container) {
		var paramString = $(container).data("params");
		var options = tsScan.getOptions(paramString, tiddler);
		var url = options.url;
		options.cache = macro.cache;
		options.callback = function(tiddlers) {
				options.cache = true;
				macro.cache = true;
				var count = tiddlers[0] ? tiddlers[0].fields['server.page.revision'] : 0;
				var lastCount = macro.countCache[url] || 0;
				if(lastCount != count) {
					var interval, step = 0;
					interval = window.setInterval(function() {
						var last = step;
						step += 1;
						$(container).removeClass("step" + last);
						if(step > 10) {
							macro.countCache[url] = count;
							window.clearInterval(interval);
						} else {
							$(container).addClass("step" + step);
						}
					}, 500)
				}
				$(container).empty().addClass("enabled").text(tiddlers.length).click(function(ev) {
				$(ev.target).addClass("active");
				var target = options.popupSelector ? $(options.popupSelector)[0] : ev.target;
				var p = Popup.create(target, "div");
				var container;
				if(options.heading) {
					container = $("<div />").addClass("heading").appendTo(p)[0];
					wikify(store.getTiddlerText(options.heading) || "", container);
				}
				container = $("<div />").addClass("followTiddlersList").appendTo(p)[0];
				tsScan.scan(container, options);
				Popup.show();
				ev.stopPropagation();
				return false;
			});
		};
		tsScan.scan(container, options);
	}
}

var _getOptions = tsScan.getOptions;
config.macros.tsScan.getOptions = function(paramString, tiddler) {
	var options = _getOptions.apply(this, arguments);
	var optionsClone = {};
	for(var i in options) {
		if(typeof(options[i]) == "string") {
			optionsClone[i] = options[i].format(tiddlyspace.currentSpace.name);
		} else {
			optionsClone[i] = options[i];
		}
	}
	return optionsClone;
}

// every 5 minutes make tsScan update.
window.setInterval(function() {
	macro.cache = false;
	$("[macroName=tsScanCount]").each(function(i, el) {
		macro.refresh(el);
	});
}, 1000 * 60 * 5);
})(jQuery);