Userscript for Fluid App (http://fluidapp.com) to enable dock count and desktop notifications for Google Inbox

fluid_inbox_userscript.js

window.fluid.dockBadge = '';

// for tracking when to notify
var previousUnreadCount = 0;

// Main polling
var readyStateCheckInterval = setInterval(function() {
  if(document.readyState === "complete") {
    setInterval(updateDockBadge, 3000);
    clearInterval(readyStateCheckInterval);
  }
}, 3000);


function updateDockBadge() {
	var currentUnreadCount = 0;
	var badge = document.getElementsByClassName('qG').length;
	
	if (badge) {
		if(parseInt(badge) > 0) {
			currentUnreadCount += parseInt(badge);
		}
	}
	if(currentUnreadCount == 0) {
		window.fluid.dockBadge = '';
		previousUnreadCount = 0;
	} else {
		// update dock with new count
		window.fluid.dockBadge = currentUnreadCount;
		
		// determine how many new mails there are and notify
		var unreadMailCount = currentUnreadCount - previousUnreadCount;
		if(unreadMailCount > 0) {
			notify(unreadMailCount);
			previousUnreadCount = currentUnreadCount;
		}
	}
}


// Creates a Notification Center message, if supported
function notify(count) {
	var supportsWebkitNotifications = ('webkitNotifications' in window);
	if(count > 0 && supportsWebkitNotifications) {
		if(webkitNotifications.checkPermission() == 0) {
			body = (count == 1) ? '1 new message' : count + ' new messages';
			webkitNotifications.createNotification(
				null, 
				'You got mail', 
				body
			).show();
		}
	}
}