outchy
Joined: 21 Mar 2007
Posts: 1
Location: Onset, MA
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| Posted: Wed Mar 21, 2007 - 7:04 pm Post subject: Need to display timestamp on an RSS widget |
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hey guys. i have an rss widget that displays the 15 most recent postings on my messageboard. it displays the title of the post (as a link) and the date (ex. mar 21). what i want to the widget to show is the link, followed by the date AND the time the post was submitted directly after. for example:
nik on "Here we go!" mar 21 at 11:25 am
can anyone help me? i don't understand that part of the code :/ here is a link to download the widget if that helps and i'll also post the RSS.js file below (sorry if the code is a bit long):
http://www.manonfire.cc/playground/ThePlaygroundWidget2.zip
| Code: | /*
File: exampleRSS.js
Author: Fernando Dashiiki http://fernando.dubtribe.com
Abstract: JavaScript logic for example RSS widget
Displays the RSS Feed of the most recent 15 replies
from The Playground
Version: 1.1 b rev3
Source: Written from the source code provided as 'RSS Sample'
from developer.apple.com
*/
var feed = {title:"The Playground", top:"The Playground", bottom:"The Playground", url:"http://www.manonfire.cc/playground/rss.php"};
function load ()
{
scrollerInit(document.getElementById("myScrollBar"), document.getElementById("myScrollTrack"), document.getElementById("myScrollThumb"));
calculateAndShowThumb(document.getElementById("contents"));
if (!window.widget)
{
show ();
}
}
var last_updated = 0;
var xml_request = null;
//------------------------------------------------------------------------------
// show - post a request to get DUB Messages Overall RSS topics when showing
// the widget.
// Space requests by at least 15 minutes to avoid hitting the server too often.
// Also, note that you should cancel any outstanding request before posting
// the new one.
//------------------------------------------------------------------------------
function show ()
{
DEBUG("show");
var now = (new Date).getTime();
// only check if 1 second has passed
if ((now - last_updated) > 1)
{
if (xml_request != null)
{
xml_request.abort();
xml_request = null;
}
xml_request = new XMLHttpRequest();
xml_request.onload = function(e) {xml_loaded(e, xml_request);}
xml_request.overrideMimeType("text/xml");
xml_request.open("GET", feed.url);
xml_request.setRequestHeader("Cache-Control", "no-cache");
xml_request.send(null);
}
DEBUG("/show");
}
if (window.widget)
{
widget.onshow = show;
}
//-----------------------------------------------------------------------------
// findChild - scan the children of a given DOM element for a node matching
// nodeName; much more efficient than the standard DOM methods
// (getElementsByTagName, etc) if you know what you're looking for
//-----------------------------------------------------------------------------
function findChild (element, nodeName)
{
var child;
for (child = element.firstChild; child != null; child = child.nextSibling)
{
if (child.nodeName == nodeName)
return child;
}
return null;
}
//----------------------------------------------------------------------------
// xml_loaded - extract the content of Apple RSS Hot News feed and place the
// items data into a results array: extract the title, link and publication
// date for each item.
//----------------------------------------------------------------------------
function xml_loaded (e, request)
{
//alert (request.responseText);
xml_request = null;
if (request.responseXML)
{
var contents = document.getElementById('contents');
while (contents.hasChildNodes())
{
contents.removeChild(contents.firstChild);
}
// Get the top level <rss> element
var rss = findChild(request.responseXML, 'rss');
if (!rss) {alert("no <rss> element"); return;}
// Get single subordinate channel element
var channel = findChild( rss, 'channel');
if (!channel) {alert("no <channel> element"); return;}
var results = new Array;
// Get all item elements subordinate to the channel element
// For each element, get title, link and publication date.
// Note that all elements of an item are optional.
for( var item = channel.firstChild; item != null; item = item.nextSibling)
{
if( item.nodeName == 'item' )
{
var title = findChild (item, 'title');
// we have to have the title to include the item in the list
if( title != null )
{
var link = findChild (item, 'link');
var pubDate = findChild (item, 'pubDate');
results[results.length] = {title:title.firstChild.data,
link:(link != null ? link.firstChild.data : null),
date:new Date(Date.parse(pubDate.firstChild.data))
};
}
}
}
// sort by date
results.sort (compFunc);
// copy title and date into rows for display. Store link so it can be used when user
// clicks on title
nItems = results.length;
var even = true;
for (var i = 0; i < nItems; ++i)
{
var item = results[i];
var row = createRow (item.title, item.link, item.date, even);
even = !even;
contents.appendChild (row);
}
// update the scrollbar so scrollbar matches new data
calculateAndShowThumb(document.getElementById("contents"));
// set last_updated to the current time to keep track of the last time a request was posted
last_updated = (new Date).getTime();
}
}
//-----------------------------------------------------------------------------
// sortFunc - compare function used for sorting dates
//-----------------------------------------------------------------------------
function compFunc (a, b)
{
if (a.date < b.date)
return 1;
else if (a.date > b.date)
return -1;
else
return 0;
}
//----------------------------------------------------------------------------
// createRow - add data to the next row in the widget body. Rows have
// alternating (light and dark backgound). The title and date as displayed
// for each item. The link is used when the user clicks on a RSS title.
//----------------------------------------------------------------------------
function createRow (title, link, date, even)
{
var row = document.createElement ('div');
row.setAttribute ('class', 'row ' + (even ? 'light' : 'dark'));
var title_div = document.createElement ('div');
title_div.innerText = title;
title_div.setAttribute ('class', 'title');
if (link != null)
{
title_div.setAttribute ('the_link', link);
title_div.setAttribute ('onclick', 'clickOnTitle (event, this);');
}
row.appendChild (title_div);
if (date != null)
{
var date_div = document.createElement ('div');
date_div.setAttribute ('class', 'date');
date_div.innerText = createDateStr (date);
row.appendChild (date_div);
}
return row;
}
function createDateStr (date)
{
var month;
switch (date.getMonth())
{
case 0: month = 'Jan'; break;
case 1: month = 'Feb'; break;
case 2: month = 'Mar'; break;
case 3: month = 'Apr'; break;
case 4: month = 'May'; break;
case 5: month = 'Jun'; break;
case 6: month = 'Jul'; break;
case 7: month = 'Aug'; break;
case 8: month = 'Sep'; break;
case 9: month = 'Oct'; break;
case 10: month = 'Nov'; break;
case 11: month = 'Dec'; break;
}
return month + ' ' + date.getDate();
}
//----------------------------------------------------------------------------
// clickOnTitle - take user to the RSS link when she clicks on an article's title.
//----------------------------------------------------------------------------
function clickOnTitle (event, div)
{
if (window.widget)
{
widget.openURL (div.the_link);
} else document.location = div.the_link;
}
//----------------------------------------------------------------------------
// clickOnFeedTitle - take user to the feed main web page when she clicks
// on the widget title.
//----------------------------------------------------------------------------
function clickOnFeedTitle(event)
{
if (window.widget)
{
widget.openURL (feed.url);
} else document.location = feed.url;
} |
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