buzzSawChrome - Google Chrome content extension - Adds avatars to beginning of comments on Google Buzz.Also, Removes Buzz Count (below Inbox count), but still tooltip shows count. Also, removes Friendfeed profile image imported into Buzz.

buzzSawChrome.user.js

// ==UserScript==
// @name			buzzSawChrome
// @namespace		http://wittman.org/projects/buzzsawchrome/
// @description		Google Chrome content extension - Adds avatars to beginning of comments on Google Buzz.Also, Removes Buzz Count (below Inbox count), but still tooltip shows count. Also, removes Friendfeed profile image imported into Buzz.
// @author			Micah Wittman
// @include			http*://mail.google.com/mail/*#buzz*
// @include			http*://www.google.com/profiles/*
// @require			http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js
// @version			0.1.0
// ==/UserScript==

/*	

	Author: Micah Wittman | http://wittman.org/ | http://wittman.org/projects/buzzsawchrome/ | http://wittman.org/buzz
	
	Versions:

		* 2010-03-08 - version 0.1.0 - Prepends commenter's avatar (profile image) to each Google Buzz comment on Buzz views located at www.google.com/profile/*. Also, Removes Buzz Count (below Inbox count), but still tooltip shows count. Also, removes Friendfeed profile image imported into Buzz.
*/



/*** Globals ************************************************/
var logging = false; //DEBUG - Set to true to debug logging



/*** Local Storage *******************************************/
function setItem(key, value) {
	try {
		log("Storing [" + key + ":" + value + "]");
		window.localStorage.removeItem(key);      // <-- Local storage!
		window.localStorage.setItem(key, value);  // <-- Local storage!
	} catch(e) {
		log("Error inside setItem");
		log(e);
	}
	log("Return from setItem" + key + ":" +  value);
}

// Gets item from local storage with specified key.
function getItem(key) {
	var value;
	log('Retrieving key [' + key + ']');
	try {
		value = window.localStorage.getItem(key);  // <-- Local storage!
	}catch(e) {
		log("Error inside getItem() for key:" + key);
		log(e);
		value = "null";
	}
	log("Returning value: " + value);
	return value;
}

// Clears all key/value pairs in local storage.
function clearStrg() {
	log('about to clear local storage');
	window.localStorage.clear(); // <-- Local storage!
	log('cleared');
}

function log(txt) {
	if(logging) {
	  console.log(txt);
	}
}


function GM_setValue(name, value){
	setItem(name, value);
}

function GM_getValue(name, oDefault){
	var value =  getItem(name);
	if(value == null){
		return oDefault;
	}else{
		return value;
	}
}

function GM_listValues(){
	return window.localStorage;
}

function GM_deleteValue(name){
	var key = name;
	try {
	  log("Removing [" + key + ":" + value + "]");
		window.localStorage.removeItem(name);
	} catch(e) {
	  log("Error inside removeItem");
	  log(e);
	}
	log("Return from setItem" + key + ":" +  value);
}



/*** Hide Buzz Counter (anonymous function)*******************/
(function(){
	/** Delay between requests to the server when polling. */ 
	 var pollDelay = 3000;
 
	 /** Start polling the server */
	 function start() {
		 pollId = setInterval(run, pollDelay);
	 }  
 
	 /** Stop polling the server */
	 function stop() {
		 clearInterval(pollId);
	 }

	function run(){
		//d = new Date();
		var contents = $("#canvas_frame").contents();
	
		var buzzCountLink = contents.find("a:contains('Buzz'):first");
		var text = buzzCountLink.text();
		if( (buzzCountLink.length > 0) && (text.indexOf("(") > -1) ){
			var title = buzzCountLink.attr('title');
			buzzCountLink.attr('title', title).css('padding-right', '1px');
			buzzCountLink.text('Buzz');
		}
	}
	
	/*************************************************************
	************************** RUN MODULE ************************
	********************                     *********************/
	start();

})();



/*** Profile Page Comment Avatars (anonymous function)********/
(function(){
	//Init for Global Vars
	if(typeof unsafeWindow != 'undefined'){
		window = unsafeWindow;
	}
	
	//Global Vars
	var PROFILE_CORPUS = 'http://www.google.com/profiles/';
	var PROFILE_CORPUS_SUBDIR = '/contactme';
	var NO_PROFILE_URL = 'http://www.gstatic.com/s2/profiles/images/googleyeyes96.png';
	var LOC_REF = window.location.href;
	var NOW = new Date();
	var MONTH = NOW.getMonth() + 1;
	var MONTH_PREV = MONTH - 1;
	var BUZZ_PROFILE_URL = 'buzz_profile_url:' + MONTH + ':';
	var BUZZ_PROFILE_URL_PREV = 'buzz_profile_url:' + MONTH_PREV + ':';
	
	var gSinglePostView = false;
	var gCommCount = 0;
	var gCommCountPrev = -1;
	var gRefetch = false;
	var commentCssPadding = '4px 0 4px 0';


	//Init Main

	if(LOC_REF.indexOf('www.google.com/buzz/') > -1 || LOC_REF.indexOf(PROFILE_CORPUS) > -1){
		//Single Post View settings
		gSinglePostView = true;
		commentCssPadding = '8px 0 8px 0';
	}
	
	if(LOC_REF.indexOf('buzzCommentAvatar-refetch') > -1){
		//Dump image cache on current page
		gRefetch = true;
	}
	
	function removeOldCache(){
		clearStrg();
	}
	//Functions
	function getProfileUrl(url, username, node){
		if(LOC_REF.indexOf('/profiles/') > -1){
			//continue
		}else{
			return;
		}
		var href = '';
		var xhr = new XMLHttpRequest();
		xhr.open("GET", url, true);
		xhr.onreadystatechange = function() {
		  if (xhr.readyState == 4) {		   
			var domain = '';
			var r = xhr.responseText;
			
			var h;
			if(r.indexOf(NO_PROFILE_URL) > -1){
				h = [NO_PROFILE_URL];
			}else{
				h = r.match(/\/s2\/photos\/public\/[^"]*"/);
				domain = 'http://www.google.com';
			}
			if(h != null){ 
				href = domain + h[0].replace('"', '');
			}
			
			try{GM_deleteValue(BUZZ_PROFILE_URL_PREV + username);}catch(e){}
			try{GM_deleteValue(BUZZ_PROFILE_URL + username);}catch(e){}

			GM_setValue(BUZZ_PROFILE_URL + username, href);
			render_miniavatar(node, username, href);
		  }
		}
		xhr.send();
	}

	function add_miniavatars(){
	
		if(LOC_REF.indexOf('/profiles/') > -1){ //|| LOC_REF.indexOf('/mail/') > -1 || LOC_REF.indexOf('/buzz/') > -1
			//continue
		}else{
			setTimeout(add_miniavatars, 4000);
			return;
		}
		
		var contents = jQuery("#canvas_frame").contents();
		if(contents.length == 0){
			contents = jQuery("#buzz-root").contents();
		}
		var comments = contents.find(".Ix, .CSS_UPDATES_UCW_COMMENT_ROW").css('padding', commentCssPadding);

		gCommCount = comments.length; // CSS_PROFILES_COMMENTS ...   CSS_UPDATES_UCW_COMMENT_ROW

		if(gCommCount == gCommCountPrev){
			//No new comments, so call with timeout and return to skip unneccesary processing
			setTimeout(add_miniavatars, 2000);
			return false;
		}else{
			//New comments founds, continue balance of function...
			
			//sync counters
			gCommCountPrev = gCommCount;	
		}
		
		var prolinks = comments.find("a.proflink");
		if(gSinglePostView){
			prolinks = prolinks.filter("a.CSS_UPDATES_UCW_AUTHOR");
		}

		prolinks.each(function(){
			var node = jQuery(this);
			var path = node.attr('href');
			var hashPos = path.indexOf('#') - path.lastIndexOf('/');
			var username = path.substr(path.lastIndexOf('/') + 1, hashPos - 1);

			var pUrl = GM_getValue(BUZZ_PROFILE_URL + username, '');
			if(pUrl == '' || gRefetch){
				if( (LOC_REF.indexOf('/profiles/') > -1) && (username != '') ){
					getProfileUrl(PROFILE_CORPUS + username + PROFILE_CORPUS_SUBDIR, username, node);
				}
			}else{
				if(typeof username != undefined && username != null && username != ''){
					render_miniavatar(node, username, pUrl);
				}
			}
		});

		
		setTimeout(add_miniavatars, 2000);
	}

	function render_miniavatar(node, username, pUrl){
		if(node.find('.commentMiniAvatar').length == 0 && node.parent().find('.If').length == 0){ //avatar already prepended or on header profile?
			node.prepend('<img height="25" width="25" style="position:absolute; left:-25px; top:-8px; margin-top:4px; border:none" class="commentMiniAvatar" src="' + pUrl + '" style="vertical-align:middle" /> &nbsp;');
		}
	}
	
	function removeFriendfeedProfileImage(){
		if(LOC_REF.indexOf('/profiles/') > -1
		|| LOC_REF.indexOf('/mail/') > -1
		|| LOC_REF.indexOf('/buzz/') > -1){
			//continue
		}else{
			setTimeout(add_miniavatars, 4000);
			return;
		}
		var contents = jQuery("#canvas_frame").contents();
		if(contents.length == 0){
			contents = jQuery("#buzz-root").contents();
		}
		//Remove Friendfeed Profile Image embedded in a Buzz post (it's just duplication of Buzz profile pic for the most part)
		contents.find('img[src*="friendfeed-media.com%2Fp-"], img[src*="i.friendfeed.com%2Fp-"]').hide();
		setTimeout(removeFriendfeedProfileImage, 3000);
	}

	/*************************************************************
	************************** RUN MODULE ************************
	********************                     *********************/
	add_miniavatars();
	removeFriendfeedProfileImage();

})();