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tbonemp3yahoo.com / Mute MML Commercials

// ==UserScript==
// @name         Mute MML Commercials
// @namespace    http://www.tedweatherly.com/
// @version      0.3
// @description  Mutes all the annoying commercials presented from NCAA's march madness web site
// @author       Ted Weatherly
// @match        http://www.ncaa.com/march-madness-live/*
// @grant        none
// ==/UserScript==

$(function() {
	var _DEBUG_MODE = false;

	var _jqBody;
	var _mmlElem;
	var _jqAdLock;
	var _jqTveAdblock;
	var _jqCommercialCoverDiv;
	var _lastVolume;
	var _loadCheckIntervalTime = 2000; // check every 2 seconds
	var _adCheckIntervalTime = 2000; // check every 2 seconds
	var _adCheckIntervalId;
	var _lastHref;

	function _init() {
		_jqBody = $('body');
		_jqTveAdblock = null;
		_lastVolume = 0.5; // default
		_lastHref = null;
		_createCoverDiv();
		_checkForLoad();
	}

	function _checkForLoad() {
		var bIsLoading = _isLoading();
		if (_DEBUG_MODE) console.log("Mute MML: bIsLoading = " + bIsLoading); // DEBUG
		if (bIsLoading) {
			window.setTimeout(_checkForLoad, _loadCheckIntervalTime);
		} else {
			_mmlElem = $('object#MML')[0];
			if (_DEBUG_MODE) console.log("Mute MML: _mmlElem = " + _mmlElem); // DEBUG
			_jqAdLock = $('div#ad-lock');
			_checkForCommercials();
		}
	}

	function _checkForCommercials() {
		var isCommercialShowing = _isCommercialShowing();
		if (_DEBUG_MODE) console.log("Mute MML: isCommercialShowing = " + isCommercialShowing); // DEBUG
		var volume = _mmlElem.getVolume();
		var isMuted = (volume === 0);
		if (_DEBUG_MODE) console.log("Mute MML: isMuted = " + isMuted); // DEBUG
		if (isCommercialShowing && !isMuted) {
			if (_DEBUG_MODE) console.log("Mute MML: Commercial showing -> Need to mute"); // DEBUG
			_lastVolume = volume; // save volume
			_mmlElem.setVolume(0); // mute
			_jqCommercialCoverDiv.show(); // cover
			_jqAdLock.hide(); // allow nav changes
			if (_DEBUG_MODE) console.log("Mute MML: Muted"); // DEBUG
		} else if (!isCommercialShowing && isMuted) {
			if (_DEBUG_MODE) console.log("Mute MML: Commercial not showing -> Need to unmute"); // DEBUG
			_mmlElem.setVolume(_lastVolume); // restore volume
			_jqCommercialCoverDiv.hide(); // un-cover
			if (_DEBUG_MODE) console.log("Mute MML: Unmuted"); // DEBUG
		}
		// Also hide ads
		if (window.location.href != _lastHref) { // look for href changes
			if (_DEBUG_MODE) console.log("Mute MML: Href changed, hiding ads"); // DEBUG
			if (window.location.href.indexOf("/march-madness-live/game/") > 0) {
				_hideGamePageAds();
			} else {
				_hideGameListAds();
			}
			_lastHref = window.location.href;
		}
		_adCheckIntervalId = window.setTimeout(_checkForCommercials, _adCheckIntervalTime);
	}

	function _hideGamePageAds() {
		$('div#game-center-companions').hide();
	}
	function _hideGameListAds() {
		$('div#ad-skyscraper').hide();
		$('div#ad-marketing').hide();
	}

	function _isLoading() {
		return _jqBody.hasClass("mml-loading");
	}

	function _isCommercialShowing() {
		if (_jqTveAdblock === null) _jqTveAdblock = $('#tve-adblock');
		return _jqTveAdblock.is(':visible');
	}

	function _createCoverDiv() {
		var coverDivId = "videoAdCover";
		var coverDivHTML = '<div id="'+coverDivId+'"></div>';
		_jqBody.append(coverDivHTML);
		_jqCommercialCoverDiv = _jqBody.find('#'+coverDivId);
		_jqCommercialCoverDiv.css({"background-color": "#eee", "position": "absolute", "left": "171px", "top": "148px"}).width("766px").height("430px").hide();
	}

	_init();

});