/*
jQuery News Ticker is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 2 of the License.
jQuery News Ticker is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with jQuery News Ticker. If not, see <http://www.gnu.org/licenses/>.
*/
(function($){
$.fn.ticker = function(options) {
// Extend our default options with those provided.
// Note that the first arg to extend is an empty object -
// this is to keep from overriding our "defaults" object.
var opts = $.extend({}, $.fn.ticker.defaults, options);
// check that the passed element is actually in the DOM
if ($(this).length == 0) {
if (window.console && window.console.log) {
window.console.log('Element does not exist in DOM!');
}
else {
alert('Element does not exist in DOM!');
}
return false;
}
/* Get the id of the UL to get our news content from */
var newsID = '#' + $(this).attr('id');
/* Get the tag type - we will check this later to makde sure it is a UL tag */
var tagType = $(this).get(0).tagName;
return this.each(function() {
// get a unique id for this ticker
var uniqID = getUniqID();
/* Internal vars */
var settings = {
position: 0,
time: 0,
distance: 0,
newsArr: {},
play: true,
paused: false,
contentLoaded: false,
dom: {
contentID: '#ticker-content-' + uniqID,
titleID: '#ticker-title-' + uniqID,
titleElem: '#ticker-title-' + uniqID + ' SPAN',
tickerID : '#ticker-' + uniqID,
wrapperID: '#ticker-wrapper-' + uniqID,
revealID: '#ticker-swipe-' + uniqID,
revealElem: '#ticker-swipe-' + uniqID + ' SPAN',
controlsID: '#ticker-controls-' + uniqID,
prevID: '#prev-' + uniqID,
nextID: '#next-' + uniqID,
playPauseID: '#play-pause-' + uniqID
}
};
// if we are not using a UL, display an error message and stop any further execution
if (tagType != 'UL' && tagType != 'OL' && opts.htmlFeed === true) {
debugError('Cannot use <' + tagType.toLowerCase() + '> type of element for this plugin - must of type <ul> or <ol>');
return false;
}
// set the ticker direction
opts.direction == 'rtl' ? opts.direction = 'right' : opts.direction = 'left';
// lets go...
initialisePage();
/* Function to get the size of an Object*/
function countSize(obj) {
var size = 0, key;
for (key in obj) {
if (obj.hasOwnProperty(key)) size++;
}
return size;
};
function getUniqID() {
var newDate = new Date;
return newDate.getTime();
}
/* Function for handling debug and error messages */
function debugError(obj) {
if (opts.debugMode) {
if (window.console && window.console.log) {
window.console.log(obj);
}
else {
alert(obj);
}
}
}
/* Function to setup the page */
function initialisePage() {
// process the content for this ticker
processContent();
// add our HTML structure for the ticker to the DOM
$(newsID).wrap('<div id="' + settings.dom.wrapperID.replace('#', '') + '"></div>');
// remove any current content inside this ticker
$(settings.dom.wrapperID).children().remove();
$(settings.dom.wrapperID).append('<div id="' + settings.dom.tickerID.replace('#', '') + '" class="ticker"><div id="' + settings.dom.titleID.replace('#', '') + '" class="ticker-title"><span><!-- --></span></div><p id="' + settings.dom.contentID.replace('#', '') + '" class="ticker-content"></p><div id="' + settings.dom.revealID.replace('#', '') + '" class="ticker-swipe"><span><!-- --></span></div></div>');
$(settings.dom.wrapperID).removeClass('no-js').addClass('ticker-wrapper has-js ' + opts.direction);
// hide the ticker
$(settings.dom.tickerElem + ',' + settings.dom.contentID).hide();
// add the controls to the DOM if required
if (opts.controls) {
// add related events - set functions to run on given event
$(settings.dom.controlsID).live('click mouseover mousedown mouseout mouseup', function (e) {
var button = e.target.id;
if (e.type == 'click') {
switch (button) {
case settings.dom.prevID.replace('#', ''):
// show previous item
settings.paused = true;
$(settings.dom.playPauseID).addClass('paused');
manualChangeContent('prev');
break;
case settings.dom.nextID.replace('#', ''):
// show next item
settings.paused = true;
$(settings.dom.playPauseID).addClass('paused');
manualChangeContent('next');
break;
case settings.dom.playPauseID.replace('#', ''):
// play or pause the ticker
if (settings.play == true) {
settings.paused = true;
$(settings.dom.playPauseID).addClass('paused');
pauseTicker();
}
else {
settings.paused = false;
$(settings.dom.playPauseID).removeClass('paused');
restartTicker();
}
break;
}
}
else if (e.type == 'mouseover' && $('#' + button).hasClass('controls')) {
$('#' + button).addClass('over');
}
else if (e.type == 'mousedown' && $('#' + button).hasClass('controls')) {
$('#' + button).addClass('down');
}
else if (e.type == 'mouseup' && $('#' + button).hasClass('controls')) {
$('#' + button).removeClass('down');
}
else if (e.type == 'mouseout' && $('#' + button).hasClass('controls')) {
$('#' + button).removeClass('over');
}
});
// add controls HTML to DOM
$(settings.dom.wrapperID).append('<ul id="' + settings.dom.controlsID.replace('#', '') + '" class="ticker-controls"><li id="' + settings.dom.playPauseID.replace('#', '') + '" class="jnt-play-pause controls"><a href=""><!-- --></a></li><li id="' + settings.dom.prevID.replace('#', '') + '" class="jnt-prev controls"><a href=""><!-- --></a></li><li id="' + settings.dom.nextID.replace('#', '') + '" class="jnt-next controls"><a href=""><!-- --></a></li></ul>');
}
if (opts.displayType != 'fade') {
// add mouse over on the content
$(settings.dom.contentID).mouseover(function () {
if (settings.paused == false) {
pauseTicker();
}
}).mouseout(function () {
if (settings.paused == false) {
restartTicker();
}
});
}
// we may have to wait for the ajax call to finish here
if (!opts.ajaxFeed) {
setupContentAndTriggerDisplay();
}
}
/* Start to process the content for this ticker */
function processContent() {
// check to see if we need to load content
if (settings.contentLoaded == false) {
// construct content
if (opts.ajaxFeed) {
if (opts.feedType == 'xml') {
$.ajax({
url: opts.feedUrl,
cache: false,
dataType: opts.feedType,
async: true,
success: function(data){
count = 0;
// get the 'root' node
for (var a = 0; a < data.childNodes.length; a++) {
if (data.childNodes[a].nodeName == 'rss') {
xmlContent = data.childNodes[a];
}
}
// find the channel node
for (var i = 0; i < xmlContent.childNodes.length; i++) {
if (xmlContent.childNodes[i].nodeName == 'channel') {
xmlChannel = xmlContent.childNodes[i];
}
}
// for each item create a link and add the article title as the link text
for (var x = 0; x < xmlChannel.childNodes.length; x++) {
if (xmlChannel.childNodes[x].nodeName == 'item') {
xmlItems = xmlChannel.childNodes[x];
var title, link = false;
for (var y = 0; y < xmlItems.childNodes.length; y++) {
if (xmlItems.childNodes[y].nodeName == 'title') {
title = xmlItems.childNodes[y].lastChild.nodeValue;
}
else if (xmlItems.childNodes[y].nodeName == 'link') {
link = xmlItems.childNodes[y].lastChild.nodeValue;
}
if ((title !== false && title != '') && link !== false) {
settings.newsArr['item-' + count] = { type: opts.titleText, content: '<a href="' + link + '">' + title + '</a>' }; count++; title = false; link = false;
}
}
}
}
// quick check here to see if we actually have any content - log error if not
if (countSize(settings.newsArr < 1)) {
debugError('Couldn\'t find any content from the XML feed for the ticker to use!');
return false;
}
settings.contentLoaded = true;
setupContentAndTriggerDisplay();
}
});
}
else {
debugError('Code Me!');
}
}
else if (opts.htmlFeed) {
if($(newsID + ' LI').length > 0) {
$(newsID + ' LI').each(function (i) {
// maybe this could be one whole object and not an array of objects?
settings.newsArr['item-' + i] = { type: opts.titleText, content: $(this).html()};
});
}
else {
debugError('Couldn\'t find HTML any content for the ticker to use!');
return false;
}
}
else {
debugError('The ticker is set to not use any types of content! Check the settings for the ticker.');
return false;
}
}
}
function setupContentAndTriggerDisplay() {
settings.contentLoaded = true;
// update the ticker content with the correct item
// insert news content into DOM
$(settings.dom.titleElem).html(settings.newsArr['item-' + settings.position].type);
$(settings.dom.contentID).html(settings.newsArr['item-' + settings.position].content);
// set the next content item to be used - loop round if we are at the end of the content
if (settings.position == (countSize(settings.newsArr) -1)) {
settings.position = 0;
}
else {
settings.position++;
}
// get the values of content and set the time of the reveal (so all reveals have the same speed regardless of content size)
distance = $(settings.dom.contentID).width();
time = distance / opts.speed;
// start the ticker animation
revealContent();
}
// slide back cover or fade in content
function revealContent() {
$(settings.dom.contentID).css('opacity', '1');
if(settings.play) {
// get the width of the title element to offset the content and reveal
var offset = $(settings.dom.titleID).width() + 20;
$(settings.dom.revealID).css(opts.direction, offset + 'px');
// show the reveal element and start the animation
if (opts.displayType == 'fade') {
// fade in effect ticker
$(settings.dom.revealID).hide(0, function () {
$(settings.dom.contentID).css(opts.direction, offset + 'px').fadeIn(opts.fadeInSpeed, postReveal);
});
}
else if (opts.displayType == 'scroll') {
// to code
}
else {
// default bbc scroll effect
$(settings.dom.revealElem).show(0, function () {
$(settings.dom.contentID).css(opts.direction, offset + 'px').show();
// set our animation direction
animationAction = opts.direction == 'right' ? { marginRight: distance + 'px'} : { marginLeft: distance + 'px' };
$(settings.dom.revealID).css('margin-' + opts.direction, '0px').delay(20).animate(animationAction, time, 'linear', postReveal);
});
}
}
else {
return false;
}
};
// here we hide the current content and reset the ticker elements to a default state ready for the next ticker item
function postReveal() {
if(settings.play) {
// we have to separately fade the content out here to get around an IE bug - needs further investigation
$(settings.dom.contentID).delay(opts.pauseOnItems).fadeOut(opts.fadeOutSpeed);
// deal with the rest of the content, prepare the DOM and trigger the next ticker
if (opts.displayType == 'fade') {
$(settings.dom.contentID).fadeOut(opts.fadeOutSpeed, function () {
$(settings.dom.wrapperID)
.find(settings.dom.revealElem + ',' + settings.dom.contentID)
.hide()
.end().find(settings.dom.tickerID + ',' + settings.dom.revealID)
.show()
.end().find(settings.dom.tickerID + ',' + settings.dom.revealID)
.removeAttr('style');
setupContentAndTriggerDisplay();
});
}
else {
$(settings.dom.revealID).hide(0, function () {
$(settings.dom.contentID).fadeOut(opts.fadeOutSpeed, function () {
$(settings.dom.wrapperID)
.find(settings.dom.revealElem + ',' + settings.dom.contentID)
.hide()
.end().find(settings.dom.tickerID + ',' + settings.dom.revealID)
.show()
.end().find(settings.dom.tickerID + ',' + settings.dom.revealID)
.removeAttr('style');
setupContentAndTriggerDisplay();
});
});
}
}
else {
$(settings.dom.revealElem).hide();
}
}
// pause ticker
function pauseTicker() {
settings.play = false;
// stop animation and show content - must pass "true, true" to the stop function, or we can get some funky behaviour
$(settings.dom.tickerID + ',' + settings.dom.revealID + ',' + settings.dom.titleID + ',' + settings.dom.titleElem + ',' + settings.dom.revealElem + ',' + settings.dom.contentID).stop(true, true);
$(settings.dom.revealID + ',' + settings.dom.revealElem).hide();
$(settings.dom.wrapperID)
.find(settings.dom.titleID + ',' + settings.dom.titleElem).show()
.end().find(settings.dom.contentID).show();
}
// play ticker
function restartTicker() {
settings.play = true;
settings.paused = false;
// start the ticker again
postReveal();
}
// change the content on user input
function manualChangeContent(direction) {
pauseTicker();
switch (direction) {
case 'prev':
if (settings.position == 0) {
settings.position = countSize(settings.newsArr) -2;
}
else if (settings.position == 1) {
settings.position = countSize(settings.newsArr) -1;
}
else {
settings.position = settings.position - 2;
}
$(settings.dom.titleElem).html(settings.newsArr['item-' + settings.position].type);
$(settings.dom.contentID).html(settings.newsArr['item-' + settings.position].content);
break;
case 'next':
$(settings.dom.titleElem).html(settings.newsArr['item-' + settings.position].type);
$(settings.dom.contentID).html(settings.newsArr['item-' + settings.position].content);
break;
}
// set the next content item to be used - loop round if we are at the end of the content
if (settings.position == (countSize(settings.newsArr) -1)) {
settings.position = 0;
}
else {
settings.position++;
}
}
});
};
// plugin defaults - added as a property on our plugin function
$.fn.ticker.defaults = {
speed: 0.10,
ajaxFeed: false,
feedUrl: '',
feedType: 'xml',
displayType: 'reveal',
htmlFeed: true,
debugMode: true,
controls: true,
titleText: 'Latest',
direction: 'ltr',
pauseOnItems: 3000,
fadeInSpeed: 600,
fadeOutSpeed: 300
};
})(jQuery);
$(function () {
// start the ticker
$('#js-news').ticker();
// hide the release history when the page loads
$('#release-wrapper').css('margin-top', '-' + ($('#release-wrapper').height() + 20) + 'px');
// show/hide the release history on click
$('a[href="#release-history"]').toggle(function () {
$('#release-wrapper').animate({
marginTop: '0px'
}, 600, 'linear');
}, function () {
$('#release-wrapper').animate({
marginTop: '-' + ($('#release-wrapper').height() + 20) + 'px'
}, 600, 'linear');
});
$('#download a').mousedown(function () {
_gaq.push(['_trackEvent', 'download-button', 'clicked'])
});
});
$(function () {
$('#js-news').ticker({
speed: 0.10,
htmlFeed: false,
fadeInSpeed: 600,
titleText: 'Latest News'
});
});
<ul id="js-news" class="js-hidden">
<li class="news-item"><a href="#">This is the 1st latest news item.</a></li>
<li class="news-item"><a href="#">This is the 2nd latest news item.</a></li>
<li class="news-item"><a href="#">This is the 3rd latest news item.</a></li>
<li class="news-item"><a href="#">This is the 4th latest news item.</a></li>
</ul>
/* Ticker Styling */
.ticker-wrapper.has-js {
margin: 20px 0px 20px 0px;
padding: 0px 20px;
/* width: 780px;*/
height: 32px;
display: block;
-webkit-border-radius: 15px;
-moz-border-radius: 15px;
border-radius: 15px;
background-color: #f8f0db;
font-size: 0.75em;
}
.ticker {
/* width: 710px;*/
width: 100%;
height: 23px;
display: block;
position: relative;
overflow: hidden;
background-color: #f8f0db;
}
.ticker-title {
padding-top: 9px;
color: #990000;
font-weight: bold;
background-color: #f8f0db;
text-transform: uppercase;
}
.ticker-content {
margin: 0px;
padding-top: 9px;
position: absolute;
color: #1F527B;
font-weight: bold;
background-color: #f8f0db;
overflow: hidden;
white-space: nowrap;
line-height: 1.2em;
}
.ticker-content:focus {
none;
}
.ticker-content a {
text-decoration: none;
color: #1F527B;
}
.ticker-content a:hover {
text-decoration: underline;
color: #0D3059;
}
.ticker-swipe {
padding-top: 9px;
position: absolute;
top: 0px;
background-color: #f8f0db;
display: block;
width: 800px;
height: 23px;
}
.ticker-swipe span {
margin-left: 1px;
background-color: #f8f0db;
border-bottom: 1px solid #1F527B;
height: 12px;
width: 7px;
display: block;
}
.ticker-controls {
padding: 8px 0px 0px 0px;
list-style-type: none;
float: left;
}
.ticker-controls li {
padding: 0px;
margin-left: 5px;
float: left;
cursor: pointer;
height: 16px;
width: 16px;
display: block;
}
.ticker-controls li.jnt-play-pause {
background-image: url('../images/controls.png');
background-position: 32px 16px;
}
.ticker-controls li.jnt-play-pause.over {
background-position: 32px 32px;
}
.ticker-controls li.jnt-play-pause.down {
background-position: 32px 0px;
}
.ticker-controls li.jnt-play-pause.paused {
background-image: url('../images/controls.png');
background-position: 48px 16px;
}
.ticker-controls li.jnt-play-pause.paused.over {
background-position: 48px 32px;
}
.ticker-controls li.jnt-play-pause.paused.down {
background-position: 48px 0px;
}
.ticker-controls li.jnt-prev {
background-image: url('../images/controls.png');
background-position: 0px 16px;
}
.ticker-controls li.jnt-prev.over {
background-position: 0px 32px;
}
.ticker-controls li.jnt-prev.down {
background-position: 0px 0px;
}
.ticker-controls li.jnt-next {
background-image: url('../images/controls.png');
background-position: 16px 16px;
}
.ticker-controls li.jnt-next.over {
background-position: 16px 32px;
}
.ticker-controls li.jnt-next.down {
background-position: 16px 0px;
}
.js-hidden {
display: none;
}
.no-js-news {
padding: 10px 0px 0px 45px;
color: #F8F0DB;
}
.left .ticker-swipe {
/*left: 80px;*/
}
.left .ticker-controls, .left .ticker-content, .left .ticker-title, .left .ticker {
float: left;
}
.left .ticker-controls {
padding-left: 6px;
}
.right .ticker-swipe {
/*right: 80px;*/
}
.right .ticker-controls, .right .ticker-content, .right .ticker-title, .right .ticker {
float: right;
}
.right .ticker-controls {
padding-right: 6px;
}