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Sequence.js (http://www.sequencejs.com)
Version: 1.0.1
Author: Ian Lunn @IanLunn
Author URL: http://www.ianlunn.co.uk/
Github: https://github.com/IanLunn/Sequence
This is a FREE script and is available under a MIT License:
http://www.opensource.org/licenses/mit-license.php
Sequence.js and its dependencies are (c) Ian Lunn Design 2012 - 2013 unless otherwise stated.
Sequence also relies on the following open source scripts:
- jQuery imagesLoaded 2.1.0 (http://github.com/desandro/imagesloaded)
Paul Irish et al
Available under a MIT License: http://www.opensource.org/licenses/mit-license.php
- jQuery TouchWipe 1.1.1 (http://www.netcu.de/jquery-touchwipe-iphone-ipad-library)
Andreas Waltl, netCU Internetagentur (http://www.netcu.de)
Available under a MIT License: http://www.opensource.org/licenses/mit-license.php
- Modernizr 2.6.1 Custom Build (http://modernizr.com/) (Named Modernizr for Sequence to prevent conflicts)
Copyright (c) Faruk Ates, Paul Irish, Alex Sexton
Available under the BSD and MIT licenses: www.modernizr.com/license/
*/
;(function($) {
var windowLoaded = false;
$(window).bind("load", function() {
windowLoaded = true;
});
function Sequence(element, options, defaults, get) {
var self = this;
self.container = $(element); //the Sequence containing element
self.canvas = self.container.children('.sequence-canvas'); //the Sequence canvas which holds Sequence's frames (<li> elements)
self.frames = self.canvas.children('li'); //the Sequence frames (top level <li> elements within the Sequence canvas)
self._modernizrForSequence(); //get the custom build necessary for Sequence
var prefixes = { //convert JS transition/animation names to CSS names
'WebkitTransition' : '-webkit-',
'WebkitAnimation' : '-webkit-',
'MozTransition' : '-moz-',
'MozAnimation ' : '-moz-',
'OTransition' : '-o-',
'OAnimation' : '-o-',
'msTransition' : '-ms-',
'msAnimation' : '-ms-',
'transition' : '',
'animation' : ''
};
var transitionsAndAnimations = { //convert JS transition names to JS transition end and animation end event names (also apply a classname of .sequence to the event)
'WebkitTransition' : 'webkitTransitionEnd.sequence',
'WebkitAnimation' : 'webkitAnimationEnd.sequence',
'MozTransition' : 'transitionend.sequence',
'MozAnimation' : 'animationend.sequence',
'OTransition' : 'otransitionend.sequence',
'OAnimation' : 'oanimationend.sequence',
'msTransition' : 'MSTransitionEnd.sequence',
'msAnimation' : 'MSAnimationEnd.sequence',
'transition' : 'transitionend.sequence',
'animation' : 'animationend.sequence'
};
self.transitionPrefix = prefixes[ModernizrForSequence.prefixed('transition')], //work out the CSS transition prefix for the browser being used (-webkit- for example)
self.animationPrefix = prefixes[ModernizrForSequence.prefixed('animation')], //work out the CSS animation prefix for the browser being used
self.transitionProperties = {},
self.transitionEnd = transitionsAndAnimations[ModernizrForSequence.prefixed('transition')] + ' ' + transitionsAndAnimations[ModernizrForSequence.prefixed('animation')], //work out the JS transitionEnd name for the browser being used (webkitTransitionEnd webkitAnimationEnd for example)
self.numberOfFrames = self.frames.length, //number of frames (<li>) Sequence consists of
self.transitionsSupported = (self.transitionPrefix !== undefined) ? true : false, //determine if transitions are supported
self.hasTouch = ("ontouchstart" in window) ? true : false, //determine if this is a touch enabled device
self.isPaused = false, //whether Sequence is paused
self.isBeingHoveredOver = false, //whether the Sequence canvas is currently being hovered over
self.container.removeClass('sequence-destroyed'); //if Sequence is destroyed using .destroy(), it is given a clas of "destroy", remove that now if present
//CALLBACKS
self.paused = function() {}, //executes when Sequence is paused
self.unpaused = function() {}, //executes when Sequence is unpaused
self.beforeNextFrameAnimatesIn = function() {}, //executes before the next frame animates in
self.afterNextFrameAnimatesIn = function() {}, //executes after the next frame animates in
self.beforeCurrentFrameAnimatesOut = function() {}, //executes before the current frame animates out
self.afterCurrentFrameAnimatesOut = function() {}, //executes after the current frame animates out
self.afterLoaded = function() {}; //executes after Sequence is initiated
self.destroyed = function() {}; //executes when Sequence is destroyed via the destory() function
//INIT
self.settings = $.extend({}, defaults, options); //combine default options with developer defined ones
self.settings.preloader = self._renderUiElements(self.settings.preloader, '.sequence-preloader'); //set up the preloader and save it
self.isStartingFrame = (self.settings.animateStartingFrameIn) ? true : false; //determine if the first frame should animate in
self.settings.unpauseDelay = (self.settings.unpauseDelay === null) ? self.settings.autoPlayDelay : self.settings.unpauseDelay; //if the unpauseDelay is not specified, make it the same as the autoPlayDelay speed
self.getHashTagFrom = (self.settings.hashDataAttribute) ? "data-sequence-hashtag": "id"; //get the hashtag from the ID or data attribute?
self.frameHashID = []; //array that matches frames with has IDs
self.direction = self.settings.autoPlayDirection;
if(self.settings.hideFramesUntilPreloaded && self.settings.preloader !== undefined && self.settings.preloader !== false) { //if using a preloader and hiding frames until preloading has completed...
self.frames.hide(); //hide Sequence's frames
}
if(self.transitionPrefix === "-o-") { //if Opera prefixes are required...
self.transitionsSupported = self._operaTest(); //run a test to see if Opera correctly supports transitions (Opera 11 has bugs relating to transitions)
}
self.frames.removeClass("animate-in"); //remove any instance of "animate-in", which should be used incase JS is disabled
//functionality to run once Sequence has preloaded
function oncePreloaded() {
self.afterLoaded(); //callback
if(self.settings.hideFramesUntilPreloaded && self.settings.preloader !== undefined && self.settings.preloader !== false) {
self.frames.show();
}
if(self.settings.preloader !== undefined && self.settings.preloader !== false){
if(self.settings.hidePreloaderUsingCSS && self.transitionsSupported) {
self.prependPreloadingCompleteTo = (self.settings.prependPreloadingComplete === true) ? self.settings.preloader : $(self.settings.prependPreloadingComplete);
self.prependPreloadingCompleteTo.addClass("preloading-complete");
setTimeout(init, self.settings.hidePreloaderDelay);
}else{
self.settings.preloader.fadeOut(self.settings.hidePreloaderDelay, function() {
clearInterval(self.defaultPreloader);
init();
});
}
}else{
init();
}
}
var preloadTheseFramesLength = self.settings.preloadTheseFrames.length; //how many frames to preload?
var preloadTheseImagesLength = self.settings.preloadTheseImages.length; //how many single images to load?
function saveImagesToArray(length, srcOnly) {
var imagesToPreload = []; //saves the images that are to be preloaded
if(!srcOnly){
for(var i = length; i > 0; i--){ //for each frame to be preloaded...
self.frames.eq(self.settings.preloadTheseFrames[i-1]-1).find("img").each(function() { //find <img>'s in specific frames, and for each found...
imagesToPreload.push($(this)[0]); //add it to the array of images to be preloaded
});
}
}else{
for(var j = length; j > 0; j--) { //for each frame to be preloaded...
imagesToPreload.push($("body").find('img[src="'+self.settings.preloadTheseImages[j-1]+'"]')); //find any <img> with the given source and add it to the array of images to be preloaded
}
}
return imagesToPreload;
}
//jQuery imagesLoaded plugin v2.1.0 (http://github.com/desandro/imagesloaded)
function imagesLoaded(imagesToPreload, callback) {
var BLANK = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
var $this = imagesToPreload,
deferred = $.isFunction($.Deferred) ? $.Deferred() : 0,
hasNotify = $.isFunction(deferred.notify),
$images = $this.find('img').add( $this.filter('img') ),
loaded = [],
proper = [],
broken = [];
//Register deferred callbacks
if($.isPlainObject(callback)) {
$.each(callback, function(key, value) {
if(key === 'callback') {
callback = value;
}else if(deferred) {
deferred[key](value);
}
});
}
function doneLoading() {
var $proper = $(proper),
$broken = $(broken);
if(deferred) {
if(broken.length) {
deferred.reject($images, $proper, $broken);
}else{
deferred.resolve($images);
}
}
if($.isFunction(callback)) {
callback.call($this, $images, $proper, $broken);
}
}
function imgLoaded( img, isBroken ) {
if(img.src === BLANK || $.inArray(img, loaded) !== -1) { // don't proceed if BLANK image, or image is already loaded
return;
}
loaded.push(img); // store element in loaded images array
if(isBroken) { // keep track of broken and properly loaded images
broken.push(img);
}else{
proper.push(img);
}
$.data(img, 'imagesLoaded', {isBroken: isBroken, src: img.src }); // cache image and its state for future calls
if(hasNotify) { // trigger deferred progress method if present
deferred.notifyWith($(img), [isBroken, $images, $(proper), $(broken)]);
}
if($images.length === loaded.length) { // call doneLoading and clean listeners if all images are loaded
setTimeout(doneLoading);
$images.unbind('.imagesLoaded');
}
}
if(!$images.length) { // if no images, trigger immediately
doneLoading();
}else{
$images.bind('load.imagesLoaded error.imagesLoaded', function(event) {
imgLoaded(event.target, event.type === 'error'); // trigger imgLoaded
}).each(function(i, el) {
var src = el.src;
var cached = $.data(el, 'imagesLoaded'); // find out if this image has been already checked for status if it was, and src has not changed, call imgLoaded on it
if(cached && cached.src === src) {
imgLoaded(el, cached.isBroken);
return;
}
if(el.complete && el.naturalWidth !== undefined) { // if complete is true and browser supports natural sizes, try to check for image status manually
imgLoaded(el, el.naturalWidth === 0 || el.naturalHeight === 0);
return;
}
// cached images don't fire load sometimes, so we reset src, but only when dealing with IE, or image is complete (loaded) and failed manual check webkit hack from http://groups.google.com/group/jquery-dev/browse_thread/thread/eee6ab7b2da50e1f
if(el.readyState || el.complete) {
el.src = BLANK;
el.src = src;
}
});
}
}
if(self.settings.preloader !== undefined && self.settings.preloader !== false && (preloadTheseFramesLength !== 0 || preloadTheseImagesLength !== 0)) { //if using the preloader and the dev has specified some images should preload...
var frameImagesToPreload = saveImagesToArray(preloadTheseFramesLength); //get images from particular Sequence frames to be preloaded
var individualImagesToPreload = saveImagesToArray(preloadTheseImagesLength, true); //get images with specific source values to be preloaded
var imagesToPreload = $(frameImagesToPreload.concat(individualImagesToPreload)); //combine frame images and individual images
imagesLoaded(imagesToPreload, oncePreloaded);
}else{ //if not using the preloader...
if(windowLoaded === true) { //if the window has already loaded...
oncePreloaded(); //run the init functionality when the preloader has finished
$(this).unbind("load.sequence"); //unbind the load event as it's no longer needed
}else{ //if the window hasn't already loaded...
$(window).bind("load.sequence", function() { //when the window loads...
oncePreloaded(); //run the init functionality when the preloader has finished
$(this).unbind("load.sequence"); //unbind the load event as it's no longer needed
});
}
}
function init() {
$(self.settings.preloader).remove(); //remove the preloader element
self.nextButton = self._renderUiElements(self.settings.nextButton, ".sequence-next"); //set up the next button
self.prevButton = self._renderUiElements(self.settings.prevButton, ".sequence-prev"); //set up the previous button
self.pauseButton = self._renderUiElements(self.settings.pauseButton, ".sequence-pause"); //set up the pause button
self.pagination = self._renderUiElements(self.settings.pagination, ".sequence-pagination"); //set up the pagination
if((self.nextButton !== undefined && self.nextButton !== false) && self.settings.showNextButtonOnInit === true){self.nextButton.show();} //if using a next button, show it
if((self.prevButton !== undefined && self.prevButton !== false) && self.settings.showPrevButtonOnInit === true){self.prevButton.show();} //if using a previous button, show it
if((self.pauseButton !== undefined && self.pauseButton !== false) && self.settings.showPauseButtonOnInit === true){self.pauseButton.show();} //if using a pause button, show it
if(self.settings.pauseIcon !== false) {
self.pauseIcon = self._renderUiElements(self.settings.pauseIcon, ".sequence-pause-icon");
if(self.pauseIcon !== undefined) {
self.pauseIcon.hide();
}
}else{
self.pauseIcon = undefined;
}
if(self.pagination !== undefined && self.pagination !== false) {
self.paginationLinks = self.pagination.children(); //get each pagination link
self.paginationLinks.on('click.sequence', function() { //when a pagination link is clicked...
var associatedFrameNumber = $(this).index() + 1; //get the number of the frame this link is associated with
self.goTo(associatedFrameNumber); //go to the associate frame
});
if(self.settings.showPaginationOnInit === true) {
self.pagination.show();
}
}
self.nextFrameID = self.settings.startingFrameID;
if(self.settings.hashTags === true) { //if using hashtags...
self.frames.each(function() { //for each frame...
self.frameHashID.push($(this).prop(self.getHashTagFrom)); //add the hashtag to an array
});
self.currentHashTag = location.hash.replace("#", ""); //get the current hashtag
if(self.currentHashTag === undefined || self.currentHashTag === "") { //if there is no hashtag...
self.nextFrameID = self.settings.startingFrameID; //use the startingFrameID
}else{
self.frameHashIndex = $.inArray(self.currentHashTag, self.frameHashID); //get the index of the frame that matches the hashtag
if(self.frameHashIndex !== -1){ //if the hashtag matches a Sequence frame ID...
self.nextFrameID = self.frameHashIndex + 1; //use the frame associated to the hashtag
}else{
self.nextFrameID = self.settings.startingFrameID; //use the startingFrameID
}
}
}
self.nextFrame = self.frames.eq(self.nextFrameID-1); //get the next frame
self.nextFrameChildren = self.nextFrame.children(); //get the elements within the next frame to be animated
if(self.pagination !== undefined) { //if using pagination, make the starting frame the current one in pagination
$(self.paginationLinks[self.settings.startingFrameID-1]).addClass('current'); //add the 'current' class to the current frame
}
if(self.transitionsSupported) { //initiate the full featured Sequence if transitions are supported...
if(!self.settings.animateStartingFrameIn) { //start first frame in animated in position
self.currentFrameID = self.nextFrameID;
if(self.settings.moveActiveFrameToTop) {
self.nextFrame.css('z-index', self.numberOfFrames);
}
self._resetElements(self.transitionPrefix, self.nextFrameChildren, "0s");
self.nextFrame.addClass("animate-in");
if(self.settings.hashTags && self.settings.hashChangesOnFirstFrame) {
self.currentHashTag = self.nextFrame.prop(self.getHashTagFrom);
document.location.hash = "#"+self.currentHashTag;
}
setTimeout(function() {
self._resetElements(self.transitionPrefix, self.nextFrameChildren, "");
}, 100);
self._resetAutoPlay(true, self.settings.autoPlayDelay);
}else if(self.settings.reverseAnimationsWhenNavigatingBackwards && self.settings.autoPlayDirection -1 && self.settings.animateStartingFrameIn) { //animate in backwards
self._resetElements(self.transitionPrefix, self.nextFrameChildren, "0s");
self.nextFrame.addClass("animate-out");
self.goTo(self.nextFrameID, -1, true);
}else{ //animate in forwards
self.goTo(self.nextFrameID, 1, true);
}
}else{ //initiate a basic slider for browsers that don't support CSS3 transitions
self.container.addClass("sequence-fallback");
self.currentFrameID = self.nextFrameID;
if(self.settings.hashTags && self.settings.hashChangesOnFirstFrame){
self.currentHashTag = self.nextFrame.prop(self.getHashTagFrom);
document.location.hash = "#"+self.currentHashTag;
}
self.frames.addClass("animate-in"); //move each frame into its animate-in position
self.frames.not(':eq('+(self.nextFrameID-1)+')').css({"display": "none", "opacity": 0}); //set all frames (except the next one) to display: none, opacity: 0
self._resetAutoPlay(true, self.settings.autoPlayDelay);
}
//END INIT
//EVENTS
if(self.nextButton !== undefined) { //if a next button is defined...
self.nextButton.bind('click.sequence', function() { //when the next button is clicked...
self.next(); //go to the next frame
});
}
if(self.prevButton !== undefined) { //if a previous button is defined...
self.prevButton.bind('click.sequence', function() { //when the previous button is clicked...
self.prev(); //go to the previous frame
});
}
if(self.pauseButton !== undefined) { //if a pause button is defined...
self.pauseButton.bind('click.sequence', function() { //when the pause button is clicked...
self.pause(true); //pause Sequence and set hardPause to true
});
}
function keyEvents(keyPressed, keyDirections) {
var keyCode;
var keyCodes;
for(keyCodes in keyDirections) {
if(keyCodes === "left" || keyCodes === "right") {
keyCode = defaultKeys[keyCodes];
}else{
keyCode = keyCodes;
}
if(keyPressed === parseFloat(keyCode)) { //if the key pressed is associated with a function...
self._initCustomKeyEvent(keyDirections[keyCodes]); //initiate the function
}
}
}
if(self.settings.keyNavigation) {
var defaultKeys = {
'left' : 37,
'right' : 39
};
$(document).bind('keydown.sequence', function(e) { //when a key is pressed...
var keyCodeChar = String.fromCharCode(e.keyCode);
if((keyCodeChar > 0 && keyCodeChar <= self.numberOfFrames) && (self.settings.numericKeysGoToFrames)) {
self.nextFrameID = keyCodeChar;
self.goTo(self.nextFrameID); //go to specified frame
}
keyEvents(e.keyCode, self.settings.keyEvents); //run default keyevents
keyEvents(e.keyCode, self.settings.customKeyEvents); //run custom keyevents
});
}
self.canvas.on({
'mouseenter.sequence': function() { //when the mouse enter the Sequence element...
if(self.settings.pauseOnHover && self.settings.autoPlay && !self.hasTouch) { //if using pauseOnHover and autoPlay on non touch devices
self.isBeingHoveredOver = true;
if(!self.isHardPaused) { //if Sequence is hard paused (via a pause button)...
self.pause(); //pause autoPlay
}
}
},
'mouseleave.sequence': function() { //when the mouse leaves the Sequence element...
if(self.settings.pauseOnHover && self.settings.autoPlay && !self.hasTouch) { //if using pauseOnHover and autoPlay on non touch devices
self.isBeingHoveredOver = false;
if(!self.isHardPaused) { //if Sequence is not hard paused (via a pause button)...
self.unpause(); //unpause autoPlay
}
}
}
});
if(self.settings.hashTags) { //if hashchange is enabled in the settings...
$(window).bind('hashchange.sequence', function() { //when the hashtag changes...
var newTag = location.hash.replace("#", ""); //grab the new hashtag
if(self.currentHashTag !== newTag) { //if the last hashtag is not the same as the current one...
self.currentHashTag = newTag; //save the new tag
self.frameHashIndex = $.inArray(self.currentHashTag, self.frameHashID); //get the index of the frame that matches the hashtag
if(self.frameHashIndex !== -1) { //if the hashtag matches a Sequence frame ID...
self.nextFrameID = self.frameHashIndex + 1; //set that frame as the next one
self.goTo(self.nextFrameID); //go to the next frame
}
}
});
}
function cancelTouch() {
self.canvas.on("touchmove.sequence", onTouchMove);
startX = null;
isMoving = false;
}
function onTouchMove(e) {
if(self.settings.swipePreventsDefault) {
e.preventDefault();
}
if(isMoving) {
var x = e.originalEvent.touches[0].pageX;
var y = e.originalEvent.touches[0].pageY;
var dx = startX - x;
var dy = startY - y;
if(Math.abs(dx) >= self.settings.swipeThreshold) {
cancelTouch();
if(dx > 0) {
self._initCustomKeyEvent(self.settings.swipeEvents.left);
}else{
self._initCustomKeyEvent(self.settings.swipeEvents.right);
}
}else if(Math.abs(dy) >= self.settings.swipeThreshold) {
cancelTouch();
if(dy > 0) {
self._initCustomKeyEvent(self.settings.swipeEvents.down);
}else{
self._initCustomKeyEvent(self.settings.swipeEvents.up);
}
}
}
}
function onTouchStart(e) {
if(e.originalEvent.touches.length === 1) {
startX = e.originalEvent.touches[0].pageX;
startY = e.originalEvent.touches[0].pageY;
isMoving = true;
self.canvas.on("touchmove.sequence", onTouchMove);
}
}
if(self.settings.swipeNavigation && self.hasTouch) { //if using swipeNavigation and the device has touch capabilities...
//jQuery TouchWipe v1.1.1 (http://www.netcu.de/jquery-touchwipe-iphone-ipad-library)
var startX;
var startY;
var isMoving = false;
self.canvas.on("touchstart.sequence", onTouchStart);
}
//END EVENTS
}
} //END CONSTRUCTOR
Sequence.prototype = {
//PUBLIC METHODS
/*
start autoPlay -- causing Sequence to automatically change frame every x amount of milliseconds
delay: a time in ms before starting the autoPlay feature (if unspecified, the default will be used)
*/
startAutoPlay: function(delay) {
var self = this;
delay = (delay === undefined) ? self.settings.autoPlayDelay : delay; //if a delay isn't specified, use the default
self.unpause();
self._resetAutoPlay(); //stop autoPlay before starting it again
self.autoPlayTimer = setTimeout(function() { //start a new autoPlay timer and...
if(self.settings.autoPlayDirection === 1) { //go to either the next or previous frame
self.next();
}else{
self.prev();
}
}, delay); //after a specified delay
},
//stop causing Sequence to automatically change frame every x amount of seconds
stopAutoPlay: function() {
var self = this;
self.pause(true);
clearTimeout(self.autoPlayTimer); //stop the autoPlay timer
},
/*
Toggle startAutoPlay (unpausing autoPlay) and stopAutoPlay (pausing autoPlay)
hardPause: if true, Sequence's pauseOnHover will not execute. Useful for pause buttons.
Note: Sequence 0.7.3 and below didn't have an .unpause() function -- .pause() would pause/unpause
based on the current state. .unpause() is now included for clarity but the .pause() function will
still toggle between paused and unpaused states.
*/
pause: function(hardPause) {
var self = this;
if(!self.isSoftPaused) { //if pausing Sequence...
if(self.pauseButton !== undefined) { //if a pause button is defined...
self.pauseButton.addClass("paused"); //add the class of "paused" to the pause button
if(self.pauseIcon !== undefined) { //if a pause icon is defined...
self.pauseIcon.show(); //show the pause icon
}
}
self.paused(); //callback when Sequence is paused
self.isSoftPaused = true;
self.isHardPaused = (hardPause) ? true : false; //if hardPausing, set hardPause to true
self.isPaused = true;
self._resetAutoPlay(); //stop autoPlay
}else{ //if unpausing Sequence...
self.unpause();
}
},
/*
Start the autoPlay feature, as well as deal with any changes to pauseButtons, pauseIcons and public variables etc
callback: if false, the unpause callback will not be initiated (this is because unpause is used internally during the stop and start of each frame)
*/
unpause: function(callback) {
var self = this;
if(self.pauseButton !== undefined) { //if a pause button is defined...
self.pauseButton.removeClass("paused"); //remove the class of "paused" from the pause button
if(self.pauseIcon !== undefined) { //if a pause icon is defined...
self.pauseIcon.hide(); //hide the pause icon
}
}
self.isSoftPaused = false;
self.isHardPaused = false;
self.isPaused = false;
if(!self.active) {
if(callback !== false) {
self.unpaused(); //callback when Sequence is unpaused
}
self._resetAutoPlay(true, self.settings.unpauseDelay); //start autoPlay after a delay specified via the unpauseDelay setting
}else{
self.delayUnpause = true; //Sequence is animating so delay the unpause event until the animation completes
}
},
//Go to the frame ahead of the current one
next: function() {
var self = this;
self.nextFrameID = (self.currentFrameID !== self.numberOfFrames) ? self.currentFrameID + 1 : 1; //work out the next frame
if(self.active === false || self.active === undefined) { //if Sequence isn't currently animating...
self.goTo(self.nextFrameID, 1); //go to the next frame
}else{ //if Sequence is currently animating...
self.goTo(self.nextFrameID, 1, true); //go immediately to the next frame (ignoring the transition threshold)
}
},
//Go to the frame prior to the current one
prev: function() {
var self = this;
self.nextFrameID = (self.currentFrameID === 1) ? self.numberOfFrames : self.currentFrameID - 1; //work out the prev frame
if(self.active === false || self.active === undefined) { //if Sequence isn't currently animating...
self.goTo(self.nextFrameID, -1); //go to the prev frame
}else{ //if Sequence is currently animating...
self.goTo(self.nextFrameID, -1, true); //go immediately to the prev frame (ignoring the transition threshold)
}
},
/*
Go to a specific frame
id: number of the frame to go to
direction: direction to get to that frame (1 = forward, -1 = reverse)
ignoreTransitionThreshold: if true, ignore the transitionThreshold setting and immediately go to the specified frame
*/
goTo: function(id, direction, ignoreTransitionThreshold) {
var self = this;
id = parseFloat(id); //convert the id to a number just in case
var transitionThreshold = (ignoreTransitionThreshold === true) ? 0 : self.settings.transitionThreshold; //if transitionThreshold is to be ignored, set it to zero
if((id === self.currentFrameID) //if the id of the frame the user is trying to go to is the same as the currently active one...
|| (self.settings.navigationSkip && self.navigationSkipThresholdActive) //or navigationSkip is enabled and the navigationSkipThreshold is active (which prevents frame from being navigated too fast)...
|| (!self.settings.navigationSkip && self.active) //or navigationSkip is disbaled but Sequence is animating...
|| (!self.transitionsSupported && self.active) //or Sequence is in fallback mode and Sequence is animating...
|| (!self.settings.cycle && direction === 1 && self.currentFrameID === self.numberOfFrames) //or cycling is disabled, the user is navigating forward and this is the last frame...
|| (!self.settings.cycle && direction === -1 && self.currentFrameID === 1) //or cycling is disabled, the user is navigating backwards and this is the first frame...
|| (self.settings.preventReverseSkipping && self.direction !== direction && self.active)) { //or Sequence is animating and the user is trying to change the direction of navigation...
return false; //don't go to another frame
}else if(self.settings.navigationSkip && self.active) { //if navigationSkip is enabled and Sequence is animating (a frame is being skipped before it has finished animating)...
self.navigationSkipThresholdActive = true; //the navigationSkipThreshold is now active
if(self.settings.fadeFrameWhenSkipped) { //if a frame should fade when skipped...
self.nextFrame.stop().animate({"opacity": 0}, self.settings.fadeFrameTime); //fade
}
clearTimeout(self.transitionThresholdTimer);
setTimeout(function() { //start the navigationSkipThreshold timer to prevent being able to navigate too quickly
self.navigationSkipThresholdActive = false; //once the timer is complete, navigationSkip can occur again
}, self.settings.navigationSkipThreshold);
}
if(!self.active || self.settings.navigationSkip) { //if there are no animations running or navigationSkip is enabled...
self.active = true; //Sequence is now animating
self._resetAutoPlay(); //stop any autoPlay timer that may be running
if(direction === undefined) { //if no direction to navigate was defined...
self.direction = (id > self.currentFrameID) ? 1 : -1; //work out which way to go based on what frame is currently active
}else{
self.direction = direction; //go to the developer defined frame
}
self.currentFrame = self.canvas.children(".animate-in"); //find which frame is active -- the frame currently being viewed (and about to be animated out)
self.nextFrame = self.frames.eq(id-1); //grab the next frame
self.currentFrameChildren = self.currentFrame.children(); //save the child elements of the current frame
self.nextFrameChildren = self.nextFrame.children(); //save the child elements of the next frame
if(self.pagination !== undefined) { //if using pagination...
self.paginationLinks.removeClass('current'); //remove the 'current' class from all pagination links
$(self.paginationLinks[id-1]).addClass('current'); //add the 'current' class to the current frame
}
if(self.transitionsSupported) { //if the browser supports CSS3 transitions...
if(self.currentFrame.length !== undefined) { //if there is a current frame (one that is in it's animate-in position)...
self.beforeCurrentFrameAnimatesOut(); //callback
if(self.settings.moveActiveFrameToTop) { //if the active frame should move to the top...
self.currentFrame.css("z-index", 1); //move this frame to the bottom as it is now inactive
}
self._resetElements(self.transitionPrefix, self.nextFrameChildren, "0s"); //give the next frame elements a transition-duration and transition-delay of 0s so they don't transition to their reset position
if(!self.settings.reverseAnimationsWhenNavigatingBackwards || self.direction === 1) { //if user hit next button...
self.nextFrame.removeClass("animate-out"); //reset the next frame back to its starting position
self._resetElements(self.transitionPrefix, self.currentFrameChildren, ""); //remove any inline styles from the elements to be animated so styles via the "animate-out" class can take full effect
}else if(self.settings.reverseAnimationsWhenNavigatingBackwards && self.direction === -1) { //if the user hit prev button
self.nextFrame.addClass("animate-out"); //reset the next frame back to its animate-out position
self._reverseTransitionProperties(); //reverse the transition-duration, transition-delay and transition-timing-function
}
}else{
self.isStartingFrame = false; //no longer the first frame
}
self.active = true; //Sequence is now animating
self.currentFrame.unbind(self.transitionEnd); //remove the animation end event
self.nextFrame.unbind(self.transitionEnd); //remove the animation end event
if(self.settings.fadeFrameWhenSkipped && self.settings.navigationSkip) { //if a frame may have faded out when it was previously skipped...
self.nextFrame.css("opacity", 1); //show it again
}
self.beforeNextFrameAnimatesIn(); //callback
if(self.settings.moveActiveFrameToTop) { //if an active frame should be moved to the top...
self.nextFrame.css('z-index', self.numberOfFrames);
}
//modifications to the current and next frame's elements to get them ready to animate
if(!self.settings.reverseAnimationsWhenNavigatingBackwards || self.direction === 1) { //if user hit next button...
setTimeout(function() { //50ms timeout to give the browser a chance to modify the DOM sequentially
self._resetElements(self.transitionPrefix, self.nextFrameChildren, ""); //remove any inline styles from the elements to be animated so styles via the "animate-in" class can take full effect
self._waitForAnimationsToComplete(self.nextFrame, self.nextFrameChildren, "in"); //wait for the next frame to animate in
if(self.afterCurrentFrameAnimatesOut !== "function () {}" || (self.settings.transitionThreshold === true && ignoreTransitionThreshold !== true)) { //if the afterCurrentFrameAnimatesOut is being used...
self._waitForAnimationsToComplete(self.currentFrame, self.currentFrameChildren, "out", true, 1); //wait for the current frame to animate out as well
}
}, 50);
//final class changes to make animations happen
setTimeout(function() { //50ms timeout to give the browser a chance to modify the DOM sequentially
if(self.settings.transitionThreshold === false || self.settings.transitionThreshold === 0 || ignoreTransitionThreshold === true) { //if not using a transitionThreshold...
self.currentFrame.toggleClass("animate-out animate-in"); //remove the "animate-in" class and add the "animate-out" class to the current frame
self.nextFrame.addClass("animate-in"); //add the "animate-in" class
}else { //if using a transitionThreshold...
self.currentFrame.toggleClass("animate-out animate-in"); //remove the "animate-in" class and add the "animate-out" class to the current frame
if(self.settings.transitionThreshold !== true) { //if there's no transitionThreshold or the dev specified a transitionThreshold in milliseconds
self.transitionThresholdTimer = setTimeout(function() { //cause the next frame to animate in after a certain period
self.nextFrame.addClass("animate-in"); //add the "animate-in" class
}, transitionThreshold);
}
}
}, 50);
}else if(self.settings.reverseAnimationsWhenNavigatingBackwards && self.direction === -1) { //if the user hit prev button
setTimeout(function() { //50ms timeout to give the browser a chance to modify the DOM sequentially
//remove any inline styles from the elements so styles via the "animate-in" and "animate-out" class can take full effect
self._resetElements(self.transitionPrefix, self.currentFrameChildren, "");
self._resetElements(self.transitionPrefix, self.nextFrameChildren, "");
self._reverseTransitionProperties(); //reverse the transition-duration, transition-delay and transition-timing-function
self._waitForAnimationsToComplete(self.nextFrame, self.nextFrameChildren, "in"); //wait for the next frame to animate in
if(self.afterCurrentFrameAnimatesOut !== "function () {}" || (self.settings.transitionThreshold === true && ignoreTransitionThreshold !== true)) { //if the afterCurrentFrameAnimatesOut is being used...
self._waitForAnimationsToComplete(self.currentFrame, self.currentFrameChildren, "out", true, -1); //wait for the current frame to animate out as well
}
}, 50);
//final class changes to make animations happen
setTimeout(function() { //50ms timeout to give the browser a chance to modify the DOM sequentially
if(self.settings.transitionThreshold === false || self.settings.transitionThreshold === 0 || ignoreTransitionThreshold === true) { //if not using a transitionThreshold...
self.currentFrame.removeClass("animate-in"); //remove the "animate-in" class from the current frame
self.nextFrame.toggleClass("animate-out animate-in"); //add the "animate-out" class and remove the "animate-in" class from the next frame
}else{ //if using a transitionThreshold...
self.currentFrame.removeClass("animate-in");
if(self.settings.transitionThreshold !== true) { //if there's no transitionThreshold or the dev specified a transitionThreshold in milliseconds
self.transitionThresholdTimer = setTimeout(function() { //cause the next frame to animate in after a certain period
self.nextFrame.toggleClass("animate-out animate-in"); //add the "animate-in" class and remove the "animate-out" class
}, transitionThreshold);
}
}
}, 50);
}
}else{ //if the browser doesn't support CSS3 transitions...
function animationComplete() {
self._setHashTag();
self.active = false;
self._resetAutoPlay(true, self.settings.autoPlayDelay);
}
switch(self.settings.fallback.theme) {
case "fade": //if using the fade fallback theme...
self.frames.css({"position": "relative"}); //this allows for fadein/out in IE
self.beforeCurrentFrameAnimatesOut();
self.currentFrame = self.frames.eq(self.currentFrameID-1);
self.currentFrame.animate({"opacity": 0}, self.settings.fallback.speed, function() { //hide the current frame
self.currentFrame.css({"display": "none", "z-index": "1"});
self.afterCurrentFrameAnimatesOut();
self.beforeNextFrameAnimatesIn();
self.nextFrame.css({"display": "block", "z-index": self.numberOfFrames}).animate({"opacity": 1}, 500, function() {
self.afterNextFrameAnimatesIn();
}); //make the next frame the current one and show it
animationComplete();
});
self.frames.css({"position": "relative"}); //this allows for fadein/out in IE
break;
case "slide": //if using the slide fallback theme...
default:
//create objects which will save the .css() and .animation() objects
var animateOut = {};
var animateIn = {};
var moveIn = {};
//construct the .css() and .animation() objects
if(self.direction === 1) {
animateOut.left = "-100%";
animateIn.left = "100%";
}else{
animateOut.left = "100%";
animateIn.left = "-100%";
}
moveIn.left = "0";
moveIn.opacity = 1;
self.currentFrame = self.frames.eq(self.currentFrameID-1);
self.beforeCurrentFrameAnimatesOut();
self.currentFrame.animate(animateOut, self.settings.fallback.speed, function() {
self.currentFrame.css({"display": "none", "z-index": "1"});
self.afterCurrentFrameAnimatesOut();
}); //cause the current frame to animate out
self.beforeNextFrameAnimatesIn(); //callback
self.nextFrame.show().css(animateIn);
self.nextFrame.css({"display": "block", "z-index": self.numberOfFrames}).animate(moveIn, self.settings.fallback.speed, function() { //cause the next frame to animate in
animationComplete();
self.afterNextFrameAnimatesIn(); //callback
});
break;
}
}
self.currentFrameID = id; //make the currentFrameID the same as the one that is to animate in
}
},
/*
removes Sequence from the element it's attached to
callback: a callback to run once .destroy() has finished (or see the sequence.destroyed() callback)
*/
destroy: function(callback) {
var self = this;
self.container.addClass('sequence-destroyed'); //add a class of "destroyed" in case the developer wants to animate opacity etc
//REMOVE EVENTS
if(self.nextButton !== undefined) { //remove the next button click event if a next button is defined
self.nextButton.unbind('click.sequence');
}
if(self.prevButton !== undefined) { //remove the previous button click event if a previous button is defined
self.prevButton.unbind('click.sequence');
}
if(self.pauseButton !== undefined) { //remove the pause button click event if a pause button is defined
self.pauseButton.unbind('click.sequence');
}
if(self.pagination !== undefined) {
self.paginationLinks.unbind('click.sequence');
}
$(document).unbind('keydown.sequence'); //unbind key events
self.canvas.unbind('mouseenter.sequence, mouseleave.sequence, touchstart.sequence, touchmove.sequence'); //unbind mouse and touch events
$(window).unbind('hashchange.sequence'); //unbind hashchange
//CLEAR TIMERS
self.stopAutoPlay();
clearTimeout(self.transitionThresholdTimer);
//TIDY UP THE DOM
self.canvas.children('li').remove(); //because Sequence rearranges frames so the active one is always on top, remove them all...
self.canvas.prepend(self.frames); //then add them back in, in their original order
self.frames.removeClass('animate-in animate-out').removeAttr('style'); //remove classes and inline styles from all frames
self.frames.eq(self.currentFrameID-1).addClass('animate-in'); //keep the current frame in it's animate-in position
//HIDE UI ELEMENTS
if(self.nextButton !== undefined && self.nextButton !== false) { //if a next button is defined and was shown on initiation, hide it
self.nextButton.hide();
}
if(self.prevButton !== undefined && self.prevButton !== false) { //if a prev button is defined and was shown on initiation, hide it
self.prevButton.hide();
}
if(self.pauseButton !== undefined && self.pauseButton !== false) { //if a pause button is defined and was shown on initiation, hide it
self.pauseButton.hide();
}
if(self.pauseIcon !== undefined && self.pauseIcon !== false) { //if a pause icon is defined, hide it
self.pauseIcon.hide();
}
if(self.pagination !== undefined && self.pagination !== false) { //if pagination is defined and was shown on initiation, hide it
self.pagination.hide();
}
//CALLBACKS - a callback can either be passed into the destroy() function or by using the sequence.destroyed() publc method
if(callback !== undefined) {
callback(); //callback past into the function
}
self.destroyed(); //callback
self.container.removeData(); //remove data
},
//END PUBLIC METHODS
//PRIVATE METHODS
//trigger keyEvents, customKeyEvents and swipeEvents
_initCustomKeyEvent: function(event) {
var self = this;
switch(event) {
case "next":
self.next();
break;
case "prev":
self.prev();
break;
case "pause":
self.pause(true);
break;
}
},
/*
reset the transition-duration and transition-delay properties of an element
elementToReset = the element that is to have it's properties reset
cssValue = the value to be given to the transition-duration and transition-delay properties
*/
_resetElements: function(prefix, elementToReset, cssValue) {
var self = this;
elementToReset.css(
self._prefixCSS(prefix, {
"transition-duration": cssValue,
"transition-delay": cssValue,
"transition-timing-function": ""
})
);
},
/*
when navigating backwards and reverseAnimationsWhenNavigatingBackwards is true, take the transition properties for forward animation and manipulate the animated elements to create a perfect reversal
*/
_reverseTransitionProperties: function() {
var self = this;
var currentFrameChildrenDurations = []; //saves the duration for each of the current frame's element
var nextFrameChildrenDurations = []; //saves the duration for each of the next frame's element
self.currentFrameChildren.each(function() { //get the overall duration (including delay) for each animated element in the current frame
currentFrameChildrenDurations.push(parseFloat($(this).css(self.transitionPrefix+'transition-duration').replace('s', '')) + parseFloat($(this).css(self.transitionPrefix+'transition-delay').replace('s', '')));
});
self.nextFrameChildren.each(function() { //get the overall duration (including delay) for each animated element in the current frame
nextFrameChildrenDurations.push(parseFloat($(this).css(self.transitionPrefix+'transition-duration').replace('s', '')) + parseFloat($(this).css(self.transitionPrefix+'transition-delay').replace('s', '')));
});
var maximumCurrentFrameDuration = Math.max.apply(Math, currentFrameChildrenDurations); //find which transition duration is the longest
var maximumNextFrameDuration = Math.max.apply(Math, nextFrameChildrenDurations); //find which transition duration is the longest
var transitionDifference = maximumCurrentFrameDuration - maximumNextFrameDuration; //get the overal transition difference between the current and next frame
var currentDelay = 0;
var nextDelay = 0;
if(transitionDifference < 0 && !self.settings.preventDelayWhenReversingAnimations) { //if the current frame has a greater duration than the next frame...
/* note: because the current frame will take longer to animate out than the next to animate in, when this animation is reversed, the current frame will have a delay applied before it animates out. By default, Sequence will aim to avoid this (via the preventDelayWhenReversingAnimations option) because a delay on the current frame may confuse the user. The delay is removed, which means the reversal of animation is slightly out of sync */
currentDelay = Math.abs(transitionDifference);
}else if(transitionDifference > 0) { //if the next frame has a greater duration than the current frame, add the difference on as a delay
nextDelay = Math.abs(transitionDifference);
}
var reverseEachProperty = function(transitionProperties, currentFrameChildren, maximumFrameDuration, frameDelay) {
function convertTimingFunctionToCubicBezier(timingFunction) {
timingFunction = timingFunction.split(',')[0]; //only use one timing function
var timingFunctionToCubicBezier = {
"linear" : "cubic-bezier(0.0,0.0,1.0,1.0)",
"ease" : "cubic-bezier(0.25, 0.1, 0.25, 1.0)",
"ease-in": "cubic-bezier(0.42, 0.0, 1.0, 1.0)",
"ease-in-out": "cubic-bezier(0.42, 0.0, 0.58, 1.0)",
"ease-out": "cubic-bezier(0.0, 0.0, 0.58, 1.0)"
};
if(timingFunction.indexOf("cubic-bezier") < 0) { //if the timing-function returned isn't a cubic-bezier()
timingFunction = timingFunctionToCubicBezier[timingFunction]; //convert it to one
}
return timingFunction; //return a cubic-bezier()
}
currentFrameChildren.each(function() {
var duration = parseFloat($(this).css(self.transitionPrefix+'transition-duration').replace('s', '')); //get the elements transition-duration
var delay = parseFloat($(this).css(self.transitionPrefix+'transition-delay').replace('s', '')); //get the elements transition-delay
var transitionFunction = $(this).css(self.transitionPrefix+'transition-timing-function'); //get the elements transiion-timing-function
if(transitionFunction.indexOf('cubic') === -1) { //if the function isn't a cubic-bezier (the Blink engine returns keywords instead)...
var transitionFunction = convertTimingFunctionToCubicBezier(transitionFunction); //convert the keyword to cubic-bezier()
}
var cubicBezier = transitionFunction.replace('cubic-bezier(', '').replace(')', '').split(','); //remove the CSS function and just get the array
$.each(cubicBezier, function(index, value) { //for each point that makes up the cubic bezier...
cubicBezier[index] = parseFloat(value); //turn the point into a number (rather than text)
});
//reverse the cubic bezier
var reversedCubicBezier = [
1 - cubicBezier[2],
1 - cubicBezier[3],
1 - cubicBezier[0],
1 - cubicBezier[1]
];
transitionFunction = 'cubic-bezier('+reversedCubicBezier+')'; //add the reversed cubic bezier back into a CSS function
var frameDuration = duration + delay; //get the overall duration of the element
transitionProperties["transition-duration"] = duration + 's'; //reapply the element's transition-duration (to override any inline styles)
transitionProperties["transition-delay"] = (maximumFrameDuration - frameDuration + frameDelay) + 's'; //add a delay if required
transitionProperties["transition-timing-function"] = transitionFunction; //reapply the reversed transition function
$(this).css(
self._prefixCSS(self.transitionPrefix, transitionProperties) //set the new transition properties
);
});
};
reverseEachProperty(self.transitionProperties, self.currentFrameChildren, maximumCurrentFrameDuration, currentDelay); //reverse properties for each of the current frame's elements
reverseEachProperty(self.transitionProperties, self.nextFrameChildren, maximumNextFrameDuration, nextDelay); //reverse properties for each of the next frame's elements
},
/*
adds the browser vendors prefix onto multiple CSS properties
prefix = the prefix for the browser Sequence is being viewed in (-webkit- for example)
properties = the properties to be prefixed (transition-duration for example)
*/
_prefixCSS: function(prefix, properties) {
var self = this;
var css = {};
for(var property in properties) { //for each property to be modified...
css[prefix + property] = properties[property]; //add the prefix to the property name
}
return css; //return the prefixed CSS
},
/*
internal function used to start and stop autoPlay
start: if true, autoPlay will be started, else it'll be stopped
delay: a time in ms before starting the autoPlay feature (if unspecified, the default will be used)
*/
_resetAutoPlay: function(start, delay) {
var self = this;
if(start === true) { //if starting autoPlay
if(self.settings.autoPlay && !self.isSoftPaused) { //if using autoPlay and Sequence isn't paused...
clearTimeout(self.autoPlayTimer); //stop the autoPlay timer
self.autoPlayTimer = setTimeout(function() { //start a new autoPlay timer and...
if(self.settings.autoPlayDirection === 1) { //go to either the next or previous frame
self.next();
}else{
self.prev();
}
}, delay); //after a specified delay
}
}else{ //if stopping autoPlay
clearTimeout(self.autoPlayTimer); //stop the autoPlay timer
}
},
/*functionality to initiate the preloader, next/previous buttons and so on
devOption: true = the developer wants to use the default selector. false = don't use a uiElement. string = the developer defined selector to use for the UI element
defaultOption: the default selector to use for the UI element, when the developer specifies false for devOption
*/
_renderUiElements: function(devOption, defaultOption) {
var self = this;
switch(devOption) {
case false: //don't set up a uiElement
return undefined;
case true: //use the default uiElement
if(defaultOption === ".sequence-preloader") { //if setting up the preloader...
self._defaultPreloader(self.container, self.transitionsSupported, self.animationPrefix); //get the default preloader
}
return $(defaultOption); //return the default element
default: //if using a developer defined selector...
return $(devOption); //return the developer defined element
}
},
/*
prevents the next frame from animating until the current frame has finished animating
frame: the frame <li> which is animating
self.currentFrameChildren: the animated direct child elements of the frame
transitionPhase: whether the elements are animating "in" to an active position or "out" of an active position
inAfterwards: whether the next frame should animate in afterwards
direction: the direction of animation
*/
_waitForAnimationsToComplete: function(frame, currentFrameChildren, transitionPhase, inAfterwards, direction) {
var self = this;
if(transitionPhase === "out") { //if waiting on a frame's element to animate out...
var onceComplete = function() {
self.afterCurrentFrameAnimatesOut(); //callback
if(self.settings.transitionThreshold === true) {
if(direction === 1) {
self.nextFrame.addClass("animate-in"); //add the "animate-in" class
}else if(direction === -1) {
self.nextFrame.toggleClass("animate-out animate-in");
}
}
};
}else if(transitionPhase === "in") { //if waiting on a frame's element to animate in...
var onceComplete = function() {
self.afterNextFrameAnimatesIn(); //callback
self._setHashTag(); //set the hashtag to represent the newly active frame
self.active = false; //Sequence is not animating
if(!self.isHardPaused && !self.isBeingHoveredOver) { //if Sequence isn't hard paused (via a pause button for example) or being hovered over...
if(!self.delayUnpause) { //if unpausing isn't delayed (Sequence wasn't animating when unpause was invoked)...
self.unpause(false); //unpause Sequence but don't run the unpause callback
}else{ //if unpausing was delay because Sequence was animating when unpause was invoked...
self.delayUnpause = false;
self.unpause(); //unpause Sequence
}
}
};
}
currentFrameChildren.data('animationEnded', false); // set the data attribute of each animated element to indicate that the animation has not yet ended
frame.bind(self.transitionEnd, function(e) { //when an element finishes animating...
$(e.target).data('animationEnded', true); // set the data attrbiute to indicate that the element has finished it's animation
// now check if all elements have finished animating
var allAnimationsEnded = true;
currentFrameChildren.each(function() { //for each element being animated within a frame...
if($(this).data('animationEnded') === false) { //if the animation hasn't ended...
allAnimationsEnded = false; //not all animations have ended yet
return false; //break out of the animationEnded check early
}
});
if(allAnimationsEnded) { //if all animations have ended...
frame.unbind(self.transitionEnd); //stop waiting for animations to end
onceComplete();
}
});
},
_setHashTag: function() {
var self = this;
if(self.settings.hashTags) { //if hashTags is enabled...
self.currentHashTag = self.nextFrame.prop(self.getHashTagFrom); //get the hashtag name
self.frameHashIndex = $.inArray(self.currentHashTag, self.frameHashID); //get the index of the frame that matches the hashtag
if(self.frameHashIndex !== -1 && (self.settings.hashChangesOnFirstFrame || (!self.isStartingFrame || !self.transitionsSupported))) { //if the hashtag matches a Sequence frame ID...
self.nextFrameID = self.frameHashIndex + 1;
document.location.hash = "#"+self.currentHashTag;
}else{
self.nextFrameID = self.settings.startingFrameID;
self.isStartingFrame = false;
}
}
},
/* Modernizr 2.6.1 (Custom Build) | MIT & BSD
* Build: http://modernizr.com/download/#-svg-prefixed-testprop-testallprops-domprefixes
*/
_modernizrForSequence: function() {
;window.ModernizrForSequence=function(a,b,c){function x(a){i.cssText=a}function y(a,b){return x(prefixes.join(a+";")+(b||""))}function z(a,b){return typeof a===b}function A(a,b){return!!~(""+a).indexOf(b)}function B(a,b){for(var d in a){var e=a[d];if(!A(e,"-")&&i[e]!==c)return b=="pfx"?e:!0}return!1}function C(a,b,d){for(var e in a){var f=b[a[e]];if(f!==c)return d===!1?a[e]:z(f,"function")?f.bind(d||b):f}return!1}function D(a,b,c){var d=a.charAt(0).toUpperCase()+a.slice(1),e=(a+" "+m.join(d+" ")+d).split(" ");return z(b,"string")||z(b,"undefined")?B(e,b):(e=(a+" "+n.join(d+" ")+d).split(" "),C(e,b,c))}var d="2.6.1",e={},f=b.documentElement,g="modernizrForSequence",h=b.createElement(g),i=h.style,j,k={}.toString,l="Webkit Moz O ms",m=l.split(" "),n=l.toLowerCase().split(" "),o={svg:"http://www.w3.org/2000/svg"},p={},q={},r={},s=[],t=s.slice,u,v={}.hasOwnProperty,w;!z(v,"undefined")&&!z(v.call,"undefined")?w=function(a,b){return v.call(a,b)}:w=function(a,b){return b in a&&z(a.constructor.prototype[b],"undefined")},Function.prototype.bind||(Function.prototype.bind=function(b){var c=self;if(typeof c!="function")throw new TypeError;var d=t.call(arguments,1),e=function(){if(self instanceof e){var a=function(){};a.prototype=c.prototype;var f=new a,g=c.apply(f,d.concat(t.call(arguments)));return Object(g)===g?g:f}return c.apply(b,d.concat(t.call(arguments)))};return e}),p.svg=function(){return!!b.createElementNS&&!!b.createElementNS(o.svg,"svg").createSVGRect};for(var E in p)w(p,E)&&(u=E.toLowerCase(),e[u]=p[E](),s.push((e[u]?"":"no-")+u));return e.addTest=function(a,b){if(typeof a=="object")for(var d in a)w(a,d)&&e.addTest(d,a[d]);else{a=a.toLowerCase();if(e[a]!==c)return e;b=typeof b=="function"?b():b,enableClasses&&(f.className+=" "+(b?"":"no-")+a),e[a]=b}return e},x(""),h=j=null,e._version=d,e._domPrefixes=n,e._cssomPrefixes=m,e.testProp=function(a){return B([a])},e.testAllProps=D,e.prefixed=function(a,b,c){return b?D(a,b,c):D(a,"pfx")},e}(self,self.document);
},
/* Set up Sequence's default preloader
* prependTo = which element to prepend the preloader to
* transitions = whether CSS3 transitions are supported
* prefix = the prefix for the browser Sequence is being viewed in
*/
_defaultPreloader: function(prependTo, transitions, prefix) {
var icon = '<div class="sequence-preloader"><svg class="preloading" xmlns="http://www.w3.org/2000/svg"><circle class="circle" cx="6" cy="6" r="6" /><circle class="circle" cx="22" cy="6" r="6" /><circle class="circle" cx="38" cy="6" r="6" /></svg></div>';
$("head").append("<style>.sequence-preloader{height: 100%;position: absolute;width: 100%;z-index: 999999;}@"+prefix+"keyframes preload{0%{opacity: 1;}50%{opacity: 0;}100%{opacity: 1;}}.sequence-preloader .preloading .circle{fill: #ff9442;display: inline-block;height: 12px;position: relative;top: -50%;width: 12px;"+prefix+"animation: preload 1s infinite; animation: preload 1s infinite;}.preloading{display:block;height: 12px;margin: 0 auto;top: 50%;margin-top:-6px;position: relative;width: 48px;}.sequence-preloader .preloading .circle:nth-child(2){"+prefix+"animation-delay: .15s; animation-delay: .15s;}.sequence-preloader .preloading .circle:nth-child(3){"+prefix+"animation-delay: .3s; animation-delay: .3s;}.preloading-complete{opacity: 0;visibility: hidden;"+prefix+"transition-duration: 1s; transition-duration: 1s;}div.inline{background-color: #ff9442; margin-right: 4px; float: left;}</style>");
prependTo.prepend(icon);
if(!ModernizrForSequence.svg && !transitions) { //if SVG isn't supported, remain calm and add this fallback instead...
$(".sequence-preloader").prepend('<div class="preloading"><div class="circle inline"></div><div class="circle inline"></div><div class="circle inline"></div></div>');
setInterval(function() {
$(".sequence-preloader .circle").fadeToggle(500);
}, 500);
}else if(!transitions) { //if transitions aren't supported, toggle the opacity instead
setInterval(function() {
$(".sequence-preloader").fadeToggle(500);
}, 500);
}
},
//a quick test to work out if Opera supports transitions properly (to work around the fact that Opera 11 supports transitions but doesn't return a transition value properly)
_operaTest: function() {
$("body").append('<span id="sequence-opera-test"></span>');
var $operaTest = $("#sequence-opera-test");
$operaTest.css("-o-transition", "1s"); //add a transition value to the Opera test
if($operaTest.css("-o-transition") !== "1s") { //if the expected value isn't returned...
$operaTest.remove();
return false; //cause Opera to go into the fallback theme
}else{
$operaTest.remove();
return true;
}
}
//END PRIVATE METHODS
}; //END PROTOTYPE
var defaults = {
//General Settings
startingFrameID: 1, //The frame (the list item `<li>`) that should first be displayed when Sequence loads
cycle: true, //Whether Sequence should navigate to the first frame after the last frame and vice versa
animateStartingFrameIn: false, //Whether the first frame should animate in to its active position
transitionThreshold: false, //The delay between a frame animating out and the next animating in (false = no delay, true = the next frame will animate in only once the current frame has animated out)
reverseAnimationsWhenNavigatingBackwards: true, //Whether animations should be reversed when a user navigates backwards by clicking a previous button/swiping/pressing the left key
preventDelayWhenReversingAnimations: false, //Whether a delay should be removed when animations are reversed. This delay is removed by default to prevent user confusion
moveActiveFrameToTop: true, //Whether a frame should be given a higher `z-index` than other frames whilst it is active, to bring it above the others
//Autoplay Settings
autoPlay: false, //Cause Sequence to automatically change between frames over a period of time, as defined in autoPlayDelay
autoPlayDirection: 1, //The direction in which Sequence should auto play
autoPlayDelay: 5000, //The duration in milliseconds at which frames should remain on screen before animating to the next
//Frame Skipping Settings
navigationSkip: true, //Whether the user can navigate through frames before each frame has finished animating
navigationSkipThreshold: 250, //Amount of time that must pass before the next frame can be navigated to
fadeFrameWhenSkipped: true, //If a frame is skipped before it finishes animating, it will quickly fade out
fadeFrameTime: 150, //If fadeFrameWhenSkipped is true, how quickly a frame should fade out when skipped (in milliseconds)
preventReverseSkipping: false, //Whether the user can change the direction of navigation during frames animating (if navigating forward, the user can only skip forwards when other frames are animating).
//Next/Prev Button Settings
nextButton: false, //if true, Sequence will use an element with class ".sequence-next" as the next button, else specify your own selector. false = don't use an in-built next button
showNextButtonOnInit: true, //if true, Sequence will make the next button display: block; once Sequence has loaded (give the next button selector display: none; in the CSS to hide it until its usable)
prevButton: false, //if true, Sequence will use an element with class ".sequence-prev" as the previous button, else specify your own selector. false = don't use an in-built previous button
showPrevButtonOnInit: true, //if true, Sequence will make the previous button display: block; once Sequence has loaded (give the previous button selector display: none; in the CSS to hide it until its usable)
//Pause Settings
pauseButton: false, //if true, Sequence will use an element with class ".sequence-pause" as the pause button, else specify your own selector. false = don't use an in-built pause button
unpauseDelay: null, //the time to wait before navigating to the next frame when Sequence is unpaused. Note that if an unpauseDelay is not specified, the default is the same as the autoPlayDelay setting
pauseOnHover: true, //pause Sequence when the Sequence container is hovered over
pauseIcon: false, //if true, Sequence will use an element with class ".sequence-pause-icon" as the pause icon, else specify your own selector. false = don't use an in-built pause icon (the pause icon will display when Sequence is paused)
showPauseButtonOnInit: true, //if true, Sequence will make the pause button display: block; once Sequence has loaded (give the pause button selector display: none; in the CSS to hide it until its usable)
//Pagination Settings
pagination: false, //if true, Sequence will use an element with class ".sequence-pagination" as the paginated navigation, else specify your own selector. false = don't use in-built pagination
showPaginationOnInit: true, //if true, Sequence will make the pagination display: block; once Sequence has loaded (give the pagination selector display: none; in the CSS to hide it until its usable)
//Preloader Settings
preloader: false,
preloadTheseFrames: [1], //all images in these frames will load before Sequence initiates
preloadTheseImages: [ //specify particular images to load before Sequence initiates
/* Example usage
"images/catEatingSalad.jpg",
"images/meDressedAsBatman.png"
*/
],
/*Note: You can use preloadTheseFrames and preloadTheseImages together. You might want to load all images in frame 1 and just one big image from frame 2 for example*/
hideFramesUntilPreloaded: true,
prependPreloadingComplete: true,
hidePreloaderUsingCSS: true,
hidePreloaderDelay: 0,
//Keyboard settings
keyNavigation: true, //false prevents the following keyboard settings
numericKeysGoToFrames: true,
keyEvents: {
left: "prev",
right: "next"
},
customKeyEvents: {
/* Example usage
65: "prev", //a
68: "next", //d
83: "prev", //s
87: "next" //w
*/
},
//Touch Swipe Settings
swipeNavigation: true,
swipeThreshold: 20,
swipePreventsDefault: false, //be careful if setting this to true
swipeEvents: {
left: "prev",
right: "next",
up: false,
down: false
},
//hashTags Settings
//when using hashTags, please include a reference to Ben Alman's jQuery HashChange plugin above your reference to Sequence.js
//info: http://benalman.com/projects/jquery-hashchange-plugin/
//plugin: https://raw.github.com/cowboy/jquery-hashchange/v1.3/jquery.ba-hashchange.min.js
//GitHub: https://github.com/cowboy/jquery-hashchange
hashTags: false, //when a frame is navigated to, change the hashtag to the frames ID
hashDataAttribute: false, //false = the hashTag is taken from a frames ID attribute | true = the hashTag is taken from the data attribute "data-sequence-hash"
hashChangesOnFirstFrame: false, //false = the hashTag won't change for the first frame but will for those after
//Fallback Theme Settings (For browsers that don't support CSS3 transitions)
fallback: {
theme: "slide",
speed: 500
}
};
$.fn.sequence = function(options) {
return this.each(function() {
if (!$.data(this, 'sequence')) { //prevent multiple initiations on the same element
$.data(this, 'sequence', new Sequence($(this), options, defaults));
}
});
};
})(jQuery); |
:: Command execute :: | |
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