Vladimir’s WordPress Forum

//define plugin path
$wp_live_blogroll_plugin_url = trailingslashit(WP_PLUGIN_URL.'/'.dirname(plugin_basename(__FILE__)));

//include file that contains functions for parsing RSS feeds
require_once(ABSPATH . WPINC . '/rss.php');

//filter hook for changing display of bookmarks or blogroll
//add_filter('get_bookmarks', 'WPLiveRoll_GetBookmarksFilter');
//above line not used because javascript now included at end of this file

//filter function to get bookmarks
function WPLiveRoll_GetBookmarksFilter($items)
{
//do nothing if in the admin menu
if (is_admin())
{
return $items;
}

//parse all blogroll items
foreach($items as $item)
{
//check if the link is public
if ($item->link_visible=='Y')
{
$link_url=trailingslashit($item->link_url);

//simple feed guessing
if (strstr($link_url,"blogspot"))
{
//blogspot blog
$feed_url=$link_url."feeds/posts/default/";
}
elseif (strstr($link_url,"typepad"))
{
//typepad blog
$feed_url=$link_url."atom.xml";
}
else
{
//own domain or wordpress blog
$feed_url=$link_url."feed/";
}

// use WordPress to fetch the RSS feed, $feedfile should be array of posts
$feedfile = fetch_feed($feed_url);

//check if we got a valid response
if (is_array($feedfile->items) && !empty($feedfile->items))
{
//this is the most recent post
$feeditem=$feedfile->items[0];

//replace blogroll link name and url with post link and title
$item->link_url=$feeditem['link'];
$item->link_name=$feeditem['title'];
}
}
}

//return the items
return $items;
}

//embed blogroll into .livelinks class
add_filter('wp_list_bookmarks', 'WPLiveRoll_ListBookmarksFilter');

function WPLiveRoll_ListBookmarksFilter($content)
{
return '<span class="livelinks">'.$content.'</span>';
}

//load javascript with page
add_action('wp_print_scripts', 'WPLiveRoll_ScriptsAction');

function WPLiveRoll_ScriptsAction()
{
global $wp_live_blogroll_plugin_url;

if (!is_admin())
{
wp_enqueue_script('jquery');
wp_enqueue_script('wp_live_roll_script', $wp_live_blogroll_plugin_url.'/wp-live-blogroll.js', array('jquery'));

// pass parameters to JavaScript
wp_localize_script('wp_live_roll_script', 'LiverollSettings', array('plugin_url' => $wp_live_blogroll_plugin_url));
}
}

//load CSS style with wp_head action filter
add_action('wp_head', 'WPLiveRoll_HeadAction');

function WPLiveRoll_HeadAction()
{
global $wp_live_blogroll_plugin_url;
echo '<link rel="stylesheet" href="'.$wp_live_blogroll_plugin_url.'/wp-live-blogroll.css" type="text/css" />';
}
?>

/*Javascript file for use with live-blogroll WordPress plugin*/

//setup everything when document is ready
jQuery(document).ready(function($)
{
//connect to hover event of <a> in .livelinks
$('.livelinks a').hover(function(e)
{

//set the text we want to display
//this.tip="Recent posts from " + this.href + " will be displayed here…";

//create a new div and append it to the link
$(this).append('<div id="lb_popup"></div>');

//get coordinates
var mouseX = e.pageX || (e.clientX ? e.clientX + document.body.scrollLeft: 0);
var mouseY = e.pageY || (e.clientY ? e.clientY + document.body.scrollTop: 0);

//move the top left corner left and down
mouseX -= 400;
mouseY += 5;

//position the div
$('#lb_popup').css({
left: mouseX + "px",
top: mouseY + "px"
});

// use load() method to make an Ajax request
$('#lb_popup').load(LiverollSettings.plugin_url + '/wp-live-blogroll-ajax.php?link_url=' + this.href);

//show it using a fadeIn function
$('#lb_popup').fadeIn(300);
},

//when the mouse hovers out
function()
{
//remove it
$(this).children().remove();
});
});

<?php
/* Ajax file for use with live blogroll wordpress plugin */

require_once("../../../wp-config.php");
require_once(ABSPATH . WPINC . '/rss.php');

//fetch information from GET method
$link_url = $_GET['link_url'];

//function call to do something with URL parameter
WPLiveRoll_HandleAjax($link_url);

//function to get excerpt of text as the first 20 words of post
function WPLiveRoll_GetExcerpt($text, $length = 20)
{
$text = strip_tags($text);
$words = explode(' ', $text, $length + 1);
if (count($words) > $length)
{
array_pop($words);
array_push($words, '[...]');
$text = implode(' ', $words);
}
return $text;
}

//function to parse the RSS feed and return results in formatted HTML
function WPLiveRoll_HandleAjax($link_url)
{
//we will return final HTML code in this variable
$result="";

//number of posts we are showing
$number = 5;
$link_url=trailingslashit($link_url);

//pick the RSS feed based on the site
if (strstr($link_url, "blogspot"))
{
//blogspot blog
$feed_url=$link_url."feeds/posts/default/";
}
else if (strstr($link_url, "typepad"))
{
//typepad blog
$feed_url=$link_url."atom.xml";
}
else
{
//own domain with wordpress blog
$feed_url=$link_url."feed/";
}

//use WordPress to fetch the RSS feed
$feedfile = fetch_feed($feed_url);

//check if we got valid response
if (is_array($feedfile->items) && !empty($feedfile->items))
{
//slice the number of items we need
$feedfile->items = array_slice($feedfile->items, 0, $number);

//create HTML from posts
$result.= '<ul>';
foreach($feedfile->items as $item)
{
// fetch the information
$item_title = $item['title'];
$item_link = $item['link'];
$item_description = WPLiveRoll_GetExcerpt($item['description']);

//form result
$result.= '<li><a class="lb_link" href="'.$item_link.'">'.$item_title.'</a><p class="lb_desc">'.$item_description.'</p></li>';
}
$result.= '</ul>';
}
else
{
// in case we were unable to parse the feed
$result.= "No posts available.";
}
//return the HTML code
die($result);
}
?>