/*
AnythingSlider v1.4
By Chris Coyier: http://css-tricks.com
with major improvements by Doug Neiner: http://pixelgraphics.us/
based on work by Remy Sharp: http://jqueryfordesigners.com/
To use the navigationFormatter function, you must have a function that
accepts two paramaters, and returns a string of HTML text.
index = integer index (1 based);
panel = jQuery wrapped LI item this tab references
@return = Must return a string of HTML/Text
navigationFormatter: function(index, panel){
return "Panel #" + index; // This would have each tab with the text 'Panel #X' where X = index
}
*/
(function($) {
$.anythingSlider = function(el, options) {
// To avoid scope issues, use 'base' instead of 'this'
// to reference this class from internal events and functions.
var base = this;
// Wraps the ul in the necessary divs and then gives Access to jQuery element
base.$el = $(el).addClass('anythingBase').wrap('');
// Add a reverse reference to the DOM object
base.$el.data("AnythingSlider", base);
base.init = function(){
base.options = $.extend({},$.anythingSlider.defaults, options);
// Cache existing DOM elements for later
// base.$el = original ul
base.$wrapper = base.$el.parent().closest('div.anythingSlider'); // parent() then closest incase the ul has anythingSlider class
base.$window = base.$el.closest('div.anythingWindow');
base.$items = base.$el.find('> li').addClass('panel');
base.$objects = base.$items.find('object');
base.$dimensions = [];
// Set up a few defaults & get details
base.currentPage = base.options.startPanel;
base.timer = null;
base.playing = false;
base.pages = base.$items.length;
base.$objlen = !!base.$objects.length;
// Get index (run time) of this slider on the page
base.runTimes = $('div.anythingSlider').index(base.$wrapper) + 1;
// Make sure easing function exists.
if (!$.isFunction($.easing[base.options.easing])) { base.options.easing = "swing"; }
// Set the dimensions
if (base.options.resizeContents) {
if (base.options.width) {
base.$wrapper.css('width', base.options.width);
base.$items.css('width', base.options.width);
}
if (base.options.height) {
base.$wrapper.css('height', base.options.height);
base.$items.css('height', base.options.height);
}
if (base.$objlen){
base.$objects.find('embed').andSelf().css({ width : '100%', height: '100%' });
}
}
// initialize youtube api - doesn't work in IE (someone have a solution?)
base.$objects.each(function(){
if ($(this).find('[src*=youtube]').length){
$(this).parent()
.wrap('')
.find('embed[src*=youtube]').attr('src', function(i,s){ return s + '&enablejsapi=1&version=3'; }).end()
.find('param[value*=youtube]').attr('value', function(i,v){ return v + '&enablejsapi=1&version=3'; }).end()
// detach/appendTo required for Chrome
.detach()
.appendTo($('#yt-temp'))
.unwrap();
}
});
// Remove navigation & player if there is only one page
if (base.pages === 1) {
base.options.autoPlay = false;
base.options.buildNavigation = false;
base.options.buildArrows = false;
}
// If autoPlay functionality is included, then initialize the settings
if (base.options.autoPlay) {
base.playing = !base.options.startStopped; // Sets the playing variable to false if startStopped is true
base.buildAutoPlay();
}
// Build the navigation
base.buildNavigation();
// Top and tail the list with 'visible' number of items, top has the last section, and tail has the first
// This supports the "infinite" scrolling
// Ensures any cloned elements with ID's have unique ID's
var $itemClone = base.$items.filter(':last').clone().addClass('cloned');
base.$items.filter(':first').before( $itemClone.attr('id', function(i,id){ return (id==='') ? '' : id + "-cloned"; }) );
$itemClone = base.$items.filter(':first').clone().addClass('cloned');
base.$items.filter(':last' ).after($itemClone.attr('id', function(i,id){ return (id==='') ? '' : id + "-cloned"; }) );
// We just added two items, time to re-cache the list, then get the dimensions of each panel
base.$items = base.$el.find('> li'); // reselect
base.setDimensions();
if (!base.options.resizeContents) { $(window).load(function(){ base.setDimensions(); }); } // set dimensions after all images load
// Build forwards/backwards buttons
if (base.options.buildArrows) { base.buildNextBackButtons(); }
// If pauseOnHover then add hover effects
if (base.options.pauseOnHover) {
base.$wrapper.hover(function() {
base.clearTimer();
}, function() {
base.startStop(base.playing);
});
}
// If a hash can not be used to trigger the plugin, then go to start panel
if ((base.options.hashTags === true && !base.gotoHash()) || base.options.hashTags === false) {
base.setCurrentPage(base.options.startPanel, false);
}
// Fix tabbing through the page
base.$items.find('a').focus(function(){
base.$items.find('.focusedLink').removeClass('focusedLink');
$(this).addClass('focusedLink');
base.$items.each(function(i){
if ($(this).find('a.focusedLink').length) {
base.gotoPage(i);
return false;
}
});
});
// Add keyboard navigation
$(window).keyup(function(e){
if (base.$wrapper.is('.activeSlider')) {
switch (e.which) {
case 39: // right arrow
base.goForward();
break;
case 37: //left arrow
base.goBack();
break;
}
}
});
};
// Creates the numbered navigation links
base.buildNavigation = function() {
base.$nav = $('').appendTo(base.$wrapper);
if (base.options.playRtl) { base.$wrapper.addClass('rtl'); }
if (base.options.buildNavigation && (base.pages > 1)) {
base.$items.each(function(i,el) {
var index = i + 1,
$a = $("");
// If a formatter function is present, use it
if (typeof(base.options.navigationFormatter) == "function") {
$a.html(base.options.navigationFormatter(index, $(this)));
} else {
$a.text(index);
}
$a.bind('click focusin', function(e) {
base.gotoPage(index);
if (base.options.hashTags) { base.setHash('panel' + base.runTimes + '-' + index); }
e.preventDefault();
});
$(base.$nav).append($a);
$a.wrap("");
});
}
};
// Creates the Forward/Backward buttons
base.buildNextBackButtons = function() {
var $forward = $('' + base.options.forwardText + ''),
$back = $('' + base.options.backText + '');
// Bind to the forward and back buttons
$back.click(function(e) {
base.goBack();
e.preventDefault();
});
$forward.click(function(e) {
base.goForward();
e.preventDefault();
});
// using tab to get to arrow links will show they have focus (outline is disabled in css)
$back.add($forward).find('a').bind('focusin focusout',function(){
$(this).toggleClass('hover');
});
// Append elements to page
base.$wrapper.prepend($forward).prepend($back);
};
// Creates the Start/Stop button
base.buildAutoPlay = function(){
base.$startStop = $("").html(base.playing ? base.options.stopText : base.options.startText);
base.$wrapper.append(base.$startStop);
base.$startStop
.click(function(e) {
base.startStop(!base.playing);
if (base.playing) {
if (base.options.playRtl) {
base.goBack(true);
} else {
base.goForward(true);
}
}
e.preventDefault();
})
// show button has focus while tabbing
.bind('focusin focusout',function(){
$(this).toggleClass('hover');
});
// Use the same setting, but trigger the start;
base.startStop(base.playing);
};
// Set panel dimensions to either resize content or adjust panel to content
base.setDimensions = function(){
var w, h, c, cw, dw, leftEdge = 0, bww = base.$window.width(), winw = $(window).width();
base.$items.each(function(i){
c = $(this).children('*');
if (base.options.resizeContents){
// get viewport width & height from options (if set), or css
w = parseInt(base.options.width,10) || bww;
h = parseInt(base.options.height,10) || base.$window.height();
// resize panel
$(this).css({ width: w, height: h });
// resize panel contents, if solitary (wrapped content or solitary image)
if (c.length == 1){ c.css({ width: w, height: h }); }
} else {
// get panel width & height and save it
w = $(this).width(); // if not defined, it will return the width of the ul parent
dw = (w >= winw) ? true : false; // width defined from css?
if (c.length == 1 && dw){
cw = (c.width() >= winw) ? bww : c.width(); // get width of solitary child
$(this).css('width', cw); // set width of panel
c.css('max-width', cw); // set max width for all children
w = cw;
}
w = (dw) ? base.options.width || bww : w;
$(this).css('width', w);
h = $(this).outerHeight(); // get height after setting width
$(this).css('height', h);
}
base.$dimensions[i] = [w,h,leftEdge];
leftEdge += w;
});
// Set total width of slider, but don't go beyond the set max overall width (limited by Opera)
base.$el.css('width', (leftEdge < base.options.maxOverallWidth) ? leftEdge : base.options.maxOverallWidth);
};
base.gotoPage = function(page, autoplay) {
if (typeof(page) === "undefined" || page === null) {
page = base.options.startPage;
base.setCurrentPage(base.options.startPage);
}
// Just check for bounds
if (page > base.pages + 1) { page = base.pages; }
if (page < 0 ) { page = 1; }
// When autoplay isn't passed, we stop the timer
if (autoplay !== true) { autoplay = false; }
// Stop the slider when we reach the last page, if the option stopAtEnd is set to true
if (!autoplay || (base.options.stopAtEnd && page == base.pages)) { base.startStop(false); }
// pause YouTube videos before scrolling or prevent change if playing
if (base.checkVideo(base.playing)) { return; }
// resize slider if content size varies
if (!base.options.resizeContents) {
// animating the wrapper resize before the window prevents flickering in Firefox
base.$wrapper.filter(':not(:animated)').animate(
{ width: base.$dimensions[page][0], height: base.$dimensions[page][1] },
{ queue: false, duration: base.options.animationTime, easing: base.options.easing }
);
}
// Animate Slider
base.$window.filter(':not(:animated)').animate(
{ scrollLeft : base.$dimensions[page][2] },
{ queue: false, duration: base.options.animationTime, easing: base.options.easing, complete: function(){ base.endAnimation(page); } }
);
};
base.endAnimation = function(page){
if (page === 0) {
base.$window.scrollLeft(base.$dimensions[base.pages][2]);
page = base.pages;
} else if (page > base.pages) {
// reset back to start position
base.$window.scrollLeft(0);
page = 1;
}
base.setCurrentPage(page, false);
// continue YouTube video if in current panel
if (base.$objlen){
var emb = base.$items.eq(base.currentPage).find('embed[src*=youtube]');
try {
if (emb.length && $.isFunction(emb[0].getPlayerState) && emb[0].getPlayerState() > 0) {
emb[0].playVideo();
}
} catch(err) {}
}
};
base.setCurrentPage = function(page, move) {
// Set visual
if (base.options.buildNavigation){
base.$nav.find('.cur').removeClass('cur');
base.$nav.find('a').eq(page - 1).addClass('cur');
}
// Only change left if move does not equal false
if (!move) {
base.$wrapper.css({ // .add(base.$window)
width: base.$dimensions[page][0],
height: base.$dimensions[page][1]
});
base.$wrapper.scrollLeft(0); // reset in case tabbing changed this scrollLeft
base.$window.scrollLeft( base.$dimensions[page][2] );
}
// Update local variable
base.currentPage = page;
// Set current slider as active so keyboard navigation works properly
if (!base.$wrapper.is('.activeSlider')){
$('.activeSlider').removeClass('activeSlider');
base.$wrapper.addClass('activeSlider');
}
};
base.goForward = function(autoplay) {
if (autoplay !== true) { autoplay = false; base.startStop(false); }
base.gotoPage(base.currentPage + 1, autoplay);
};
base.goBack = function(autoplay) {
if (autoplay !== true) { autoplay = false; base.startStop(false); }
base.gotoPage(base.currentPage - 1, autoplay);
};
// This method tries to find a hash that matches panel-X
// If found, it tries to find a matching item
// If that is found as well, then that item starts visible
base.gotoHash = function(){
var hash = window.location.hash.match(/^#?panel(\d+)-(\d+)$/);
if (hash) {
var panel = parseInt(hash[1],10);
if (panel == base.runTimes) {
var slide = parseInt(hash[2],10),
$item = base.$items.filter(':eq(' + slide + ')');
if ($item.length !== 0) {
base.setCurrentPage(slide, false);
return true;
}
}
}
return false; // An item wasn't found;
};
// Taken from AJAXY jquery.history Plugin
base.setHash = function (hash) {
// Write hash
if ( typeof window.location.hash !== 'undefined' ) {
if ( window.location.hash !== hash ) {
window.location.hash = hash;
}
} else if ( location.hash !== hash ) {
location.hash = hash;
}
// Done
return hash;
};
// <-- End AJAXY code
base.clearTimer = function(){
// Clear the timer only if it is set
if (base.timer) { window.clearInterval(base.timer); }
};
// Handles stopping and playing the slideshow
// Pass startStop(false) to stop and startStop(true) to play
base.startStop = function(playing) {
if (playing !== true) { playing = false; } // Default if not supplied is false
// Update variable
base.playing = playing;
// Toggle playing and text
if (base.options.autoPlay) { base.$startStop.toggleClass("playing", playing).html( playing ? base.options.stopText : base.options.startText ); }
if (playing){
base.clearTimer(); // Just in case this was triggered twice in a row
base.timer = window.setInterval(function() {
// prevent autoplay if video is playing
if (!base.checkVideo(playing)) {
if (base.options.playRtl) {
base.goBack(true);
} else {
base.goForward(true);
}
}
}, base.options.delay);
} else {
base.clearTimer();
}
};
base.checkVideo = function(playing){
// pause YouTube videos before scrolling?
var emb, ps, stopAdvance = false;
if (base.$objlen){
base.$objects.each(function(){
// this only works on youtube videos
emb = $(this).find('embed[src*=youtube]');
try {
if (emb.length && $.isFunction(emb[0].getPlayerState)) {
// player states: unstarted (-1), ended (0), playing (1), paused (2), buffering (3), video cued (5).
ps = emb[0].getPlayerState();
// if autoplay, video playing, video is in current panel and resume option are true, then don't advance
if (playing && ps == 1 && base.$items.index(emb.closest('li')) == base.currentPage && base.options.resumeOnVideoEnd) {
stopAdvance = true;
} else {
// pause video if not autoplaying (if already initialized)
if (ps > 0) { emb[0].pauseVideo(); }
}
}
} catch(err) {}
});
}
return stopAdvance;
};
// Trigger the initialization
base.init();
};
$.anythingSlider.defaults = {
// Appearance
width : null, // Override the default CSS width
height : null, // Override the default CSS height
resizeContents : true, // If true, solitary images/objects in the panel will expand to fit the viewport
// Navigation
startPanel : 1, // This sets the initial panel
hashTags : true, // Should links change the hashtag in the URL?
buildArrows : true, // If true, builds the forwards and backwards buttons
buildNavigation : true, // If true, builds a list of anchor links to link to each panel
navigationFormatter : null, // Details at the top of the file on this use (advanced use)
forwardText : "»", // Link text used to move the slider forward (hidden by CSS, replaced with arrow image)
backText : "«", // Link text used to move the slider back (hidden by CSS, replace with arrow image)
// Slideshow options
autoPlay : true, // This turns off the entire slideshow FUNCTIONALY, not just if it starts running or not
startStopped : false, // If autoPlay is on, this can force it to start stopped
pauseOnHover : true, // If true & the slideshow is active, the slideshow will pause on hover
resumeOnVideoEnd : true, // If true & the slideshow is active & a youtube video is playing, it will pause the autoplay until the video is complete
stopAtEnd : false, // If true & the slideshow is active, the slideshow will stop on the last page
playRtl : false, // If true, the slideshow will move right-to-left
startText : "Start", // Start button text
stopText : "Stop", // Stop button text
delay : 3000, // How long between slideshow transitions in AutoPlay mode (in milliseconds)
animationTime : 600, // How long the slideshow transition takes (in milliseconds)
easing : "swing", // Anything other than "linear" or "swing" requires the easing plugin
maxOverallWidth : 32766 // Max width (in pixels) of combined sliders (side-to-side); set to 32766 to prevent problems with Opera
};
$.fn.anythingSlider = function(options) {
// initialize the slider
if ((typeof(options)).match('object|undefined')){
return this.each(function(i){
(new $.anythingSlider(this, options));
});
// If options is a number, process as an external link to page #: $(element).anythingSlider(#)
} else if (/\d/.test(options) && !isNaN(options)) {
return this.each(function(i) {
var anySlide = $(this).data('AnythingSlider');
if (anySlide) {
var page = (typeof(options) == "number") ? options : parseInt($.trim(options),10); // accepts " 2 "
// ignore out of bound pages
if ( page < 1 || page > anySlide.pages ) { return; }
anySlide.gotoPage(page);
}
});
}
};
})(jQuery);