/KitchenSink/Resources/examples/twitter.js

// Kosso
// Another attempt to create a simple Twitter client list.
// This time using a vertical layout view within each row containing the avatar image and labels for the 
// date, the username and the tweet itself.
// @kosso : kosso@phreadz.com 

// set up a twitter screen name.
var twitter_name = 'appcelerator';
var win = Ti.UI.currentWindow;
win.title = '@'+twitter_name;


function getTweets(screen_name){

	// create table view data object
	var data = [];
	
	var xhr = Ti.Network.createHTTPClient();
	xhr.timeout = 1000000;	
	xhr.open("GET","http://api.twitter.com/1/statuses/user_timeline.json?screen_name="+screen_name);

	xhr.onload = function()
	{
		try
		{
			var tweets = eval('('+this.responseText+')');
		
			for (var c=0;c<tweets.length;c++){

				var tweet = tweets[c].text;				
				var user = tweets[c].user.screen_name;
				var avatar = tweets[c].user.profile_image_url;
				var created_at = prettyDate(strtotime(tweets[c].created_at));
				var bgcolor = (c % 2) == 0 ? '#fff' : '#eee';
				
				var row = Ti.UI.createTableViewRow({hasChild:true,height:'auto',backgroundColor:bgcolor});

				// Create a vertical layout view to hold all the info labels and images for each tweet
				var post_view = Ti.UI.createView({
					height:'auto',
					layout:'vertical',
					left:5,
					top:5,
					bottom:5,
					right:5,
				});
				
				var av = Ti.UI.createImageView({
						image:avatar,
						left:0,
						top:0,
						height:48,
						width:48
					});
				// Add the avatar image to the view
				post_view.add(av);

				var user_label = Ti.UI.createLabel({
					text:user,
					left:54,
					width:120,
					top:-48,
					bottom:2,
					height:16,
					textAlign:'left',
					color:'#444444',
					font:{fontFamily:'Trebuchet MS',fontSize:14,fontWeight:'bold'}
				});
				// Add the username to the view
				post_view.add(user_label);
				
				var date_label = Ti.UI.createLabel({
					text:created_at,
					right:0,
					top:-18,
					bottom:2,
					height:14,
					textAlign:'right',
					width:110,
					color:'#444444',
					font:{fontFamily:'Trebuchet MS',fontSize:12}
				});
				// Add the date to the view
				post_view.add(date_label);
			
				var tweet_text = Ti.UI.createLabel({
					text:tweet,
					left:54,
					top:0,
					bottom:2,
					height:'auto',
					width:236,
					textAlign:'left',
					font:{fontSize:14}
				});
				// Add the tweet to the view
				post_view.add(tweet_text);
				// Add the vertical layout view to the row
				row.add(post_view);
				row.className = 'item'+c;
				data[c] = row;
			}
			// Create the tableView and add it to the window.
			var tableview = Titanium.UI.createTableView({data:data,minRowHeight:58});
			Ti.UI.currentWindow.add(tableview);
		}
		catch(E){
			alert(E);
		}
	};
	// Get the data
	xhr.send();	
}

function strtotime (str, now) {
	// Emlulates the PHP strtotime function in JavaScript
 	// obtained from http://phpjs.org/functions/strtotime:554
    var i, match, s, strTmp = '', parse = '';
    strTmp = str;
    strTmp = strTmp.replace(/\s{2,}|^\s|\s$/g, ' '); // unecessary spaces
    strTmp = strTmp.replace(/[\t\r\n]/g, ''); // unecessary chars
    if (strTmp == 'now') {
        return (new Date()).getTime()/1000; // Return seconds, not milli-seconds
    } else if (!isNaN(parse = Date.parse(strTmp))) {
        return (parse/1000);
    } else if (now) {
        now = new Date(now*1000); // Accept PHP-style seconds
    } else {
        now = new Date();
    }
    strTmp = strTmp.toLowerCase();
    var __is =
    {
        day:
        {
            'sun': 0,
            'mon': 1,
            'tue': 2,
            'wed': 3,
            'thu': 4,
            'fri': 5,
            'sat': 6
        },
        mon:
        {
            'jan': 0,
            'feb': 1,
            'mar': 2,
            'apr': 3,
            'may': 4,
            'jun': 5,
            'jul': 6,
            'aug': 7,
            'sep': 8,
            'oct': 9,
            'nov': 10,
            'dec': 11
        }
    };
    var process = function (m) {
        var ago = (m[2] && m[2] == 'ago');
        var num = (num = m[0] == 'last' ? -1 : 1) * (ago ? -1 : 1);

        switch (m[0]) {
            case 'last':
            case 'next':
                switch (m[1].substring(0, 3)) {
                    case 'yea':
                        now.setFullYear(now.getFullYear() + num);
                        break;
                    case 'mon':
                        now.setMonth(now.getMonth() + num);
                        break;
                    case 'wee':
                        now.setDate(now.getDate() + (num * 7));
                        break;
                    case 'day':
                        now.setDate(now.getDate() + num);
                        break;
                    case 'hou':
                        now.setHours(now.getHours() + num);
                        break;
                    case 'min':
                        now.setMinutes(now.getMinutes() + num);
                        break;
                    case 'sec':
                        now.setSeconds(now.getSeconds() + num);
                        break;
                    default:
                        var day;
                        if (typeof (day = __is.day[m[1].substring(0, 3)]) != 'undefined') {
                            var diff = day - now.getDay();
                            if (diff == 0) {
                                diff = 7 * num;
                            } else if (diff > 0) {
                                if (m[0] == 'last') {diff -= 7;}
                            } else {
                                if (m[0] == 'next') {diff += 7;}
                            }
                            now.setDate(now.getDate() + diff);
                        }
                }
                break;
            default:
                if (/\d+/.test(m[0])) {
                    num *= parseInt(m[0], 10);
                    switch (m[1].substring(0, 3)) {
                        case 'yea':
                            now.setFullYear(now.getFullYear() + num);
                            break;
                        case 'mon':
                            now.setMonth(now.getMonth() + num);
                            break;
                        case 'wee':
                            now.setDate(now.getDate() + (num * 7));
                            break;
                        case 'day':
                            now.setDate(now.getDate() + num);
                            break;
                        case 'hou':
                            now.setHours(now.getHours() + num);
                            break;
                        case 'min':
                            now.setMinutes(now.getMinutes() + num);
                            break;
                        case 'sec':
                            now.setSeconds(now.getSeconds() + num);
                            break;
                    }
                } else {
                    return false;
                }
                break;
        }
        return true;
    };
    match = strTmp.match(/^(\d{2,4}-\d{2}-\d{2})(?:\s(\d{1,2}:\d{2}(:\d{2})?)?(?:\.(\d+))?)?$/);
    if (match != null) {
        if (!match[2]) {
            match[2] = '00:00:00';
        } else if (!match[3]) {
            match[2] += ':00';
        }
        s = match[1].split(/-/g);
        for (i in __is.mon) {
            if (__is.mon[i] == s[1] - 1) {
                s[1] = i;
            }
        }
        s[0] = parseInt(s[0], 10);
        s[0] = (s[0] >= 0 && s[0] <= 69) ? '20'+(s[0] < 10 ? '0'+s[0] : s[0]+'') : (s[0] >= 70 && s[0] <= 99) ? '19'+s[0] : s[0]+'';
        return parseInt(this.strtotime(s[2] + ' ' + s[1] + ' ' + s[0] + ' ' + match[2])+(match[4] ? match[4]/1000 : ''), 10);
    }

    var regex = '([+-]?\\d+\\s'+
        '(years?|months?|weeks?|days?|hours?|min|minutes?|sec|seconds?'+
        '|sun\\.?|sunday|mon\\.?|monday|tue\\.?|tuesday|wed\\.?|wednesday'+
        '|thu\\.?|thursday|fri\\.?|friday|sat\\.?|saturday)'+
        '|(last|next)\\s'+
        '(years?|months?|weeks?|days?|hours?|min|minutes?|sec|seconds?'+
        '|sun\\.?|sunday|mon\\.?|monday|tue\\.?|tuesday|wed\\.?|wednesday'+
        '|thu\\.?|thursday|fri\\.?|friday|sat\\.?|saturday))'+
        '(\\sago)?';
    match = strTmp.match(new RegExp(regex, 'gi')); // Brett: seems should be case insensitive per docs, so added 'i'
    if (match == null) {
        return false;
    }
    for (i = 0; i < match.length; i++) {
        if (!process(match[i].split(' '))) {
            return false;
        }
    }
    return (now.getTime()/1000);
}

// creates a 'pretty date' from a unix time stamp
function prettyDate(time){
	var monthname = ["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"];
	var date = new Date(time*1000),
	diff = (((new Date()).getTime() - date.getTime()) / 1000),
	day_diff = Math.floor(diff / 86400);
	if ( isNaN(day_diff) || day_diff < 0 ){
		return '';
	}
	if(day_diff >= 31){
		var date_year = date.getFullYear();
		var month_name = monthname[date.getMonth()];
		var date_month = date.getMonth() + 1;
		if(date_month < 10){
			date_month = "0"+date_month;
		}
		var date_monthday = date.getDate();
		if(date_monthday < 10){
			date_monthday = "0"+date_monthday;
		}				
		return date_monthday + " " + month_name + " " + date_year;
	}
	return day_diff == 0 && (
		diff < 60 && "just now" ||
		diff < 120 && "1 minute ago" ||
		diff < 3600 && Math.floor( diff / 60 ) + " minutes ago" ||
		diff < 7200 && "1 hour ago" ||
		diff < 86400 && "about " + Math.floor( diff / 3600 ) + " hours ago") ||
	day_diff == 1 && "Yesterday" ||
	day_diff < 7 && day_diff + " days ago" ||
	day_diff < 31 && Math.ceil( day_diff / 7 ) + " week" + ((Math.ceil( day_diff / 7 )) == 1 ? "" : "s") + " ago";
}
// Get the tweets for 'twitter_name'
getTweets(twitter_name);