/*
Sequence.js (
www.sequencejs.com)
Version: 0.1 Beta
Author: Ian Lunn @IanLunn
Author URL:
http://www.ianlunn.co.uk/
Github:
https://github.com/IanLunn/Sequence
This is a FREE script and is dual licensed under the following:
http://www.opensource.org/licenses/mit-license.php |
http://www.gnu.org/licenses/gpl.html
Sequence.js and its dependencies are (c) Ian Lunn Design 2012 unless otherwise stated.
Aside from these comments, you may modify and distribute this file as you please. Have fun!
*/
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http://www.modernizr.com/download/#-...ps-domprefixes
*/
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(function($){
function Sequence(element, options){
//GLOBAL PARAMETERS
this.container = $(element);
this.sequence = this.container.children("ul");
var self = this,
prefixes = {
'WebkitTransition' : '-webkit-',
'MozTransition' : '-moz-',
'OTransition' : '-o-',
'msTransition' : '-ms-',
'transition' : ''
},
transitions = {
'WebkitTransition' : 'webkitTransitionEnd webkitAnimationEnd',
'MozTransition' : 'transitionend animationend',
'OTransition' : 'oTransitionEnd oAnimationEnd',
'msTransition' : 'MSTransitionEnd MSAnimationEnd',
'transition' : 'transitionend animationend'
};
this.prefix = prefixes[Modernizr.prefixed('transition')],
this.transitionEnd = transitions[Modernizr.prefixed('transition')],
this.transitionProperties = {},
this.numberOfFrames = this.sequence.children("li").length,
this.transitionsSupported = (this.prefix != undefined) ? true : false, //determine if transitions are supported
this.hasTouch = ("ontouchstart" in window) ? true : false, //determine if this is a touch enabled device
this.sequenceTimer,
this.paused = false,
this.hoverEvent;
this.init = {
navButtons: function(optionButton, direction){
prependNextButtonTo = (self.settings.prependNextButton == true) ? self.container : self.settings.prependNextButton;
prependPrevButtonTo = (self.settings.prependPrevButton == true) ? self.container : self.settings.prependPrevButton;
switch(optionButton){
case true: //set up default nav button
case undefined:
if(direction == ".next"){
this.CSSSelectorToHTML($(prependNextButtonTo), $.fn.sequence.defaults.nextButton);
}else{
this.CSSSelectorToHTML($(prependPrevButtonTo), $.fn.sequence.defaults.prevButton);
}
break;
case false: //don't use a nav button
break;
default: //set up the dev defined button
if(direction == ".next"){
this.CSSSelectorToHTML($(prependNextButtonTo), optionButton);
$(optionButton).show(); //this will most likely be removed in future versions
return $(optionButton);
}else{
this.CSSSelectorToHTML($(prependPrevButtonTo), optionButton);
$(optionButton).show(); //this will most likely be removed in future versions
return $(optionButton);
}
break;
}
},
pauseIcon: function(pauseIcon, pauseIconSrc){
prependPauseIconTo = (self.settings.prependPauseIcon == true) ? self.container : self.settings.prependPauseIcon;
switch(pauseIcon){
case true:
case undefined:
this.CSSSelectorToHTML($(prependPauseIconTo), $.fn.sequence.defaults.pauseIcon, pauseIconSrc);
$($.fn.sequence.defaults.pauseIcon).hide();
return $($.fn.sequence.defaults.pauseIcon);
break;
case false:
break;
default:
this.CSSSelectorToHTML($(prependPauseIconTo), self.settings.pauseIcon, pauseIconSrc);
$(self.settings.pauseIcon).hide();
return $(self.settings.pauseIcon);
break;
}
},
CSSSelectorToHTML: function(prependTo, selector, pauseIconSrc){
switch(selector.charAt(0)){
case ".":
buttonSelector = 'class="'+selector.split(".")[1]+'"';
break;
case "#":
buttonSelector = 'id="'+selector.split("#")[1]+'"';
break;
default:
buttonSelector = selector;
break;
}
if(pauseIconSrc != undefined && (self.settings.pauseIcon != true || self.settings.pauseIcon != undefined)){
$(prependTo).prepend('<div '+buttonSelector+'><img src="'+pauseIconSrc+'" alt="Pause" /></div>');
}else{
$(prependTo).prepend('<div '+buttonSelector+'></div>');
}
},
},
//INIT
this.settings = $.extend({}, $.fn.sequence.defaults, options);
this.sequence.children("li").children().removeClas s("animate-in");
this.settings.nextButton = this.init.navButtons(options.nextButton, $.fn.sequence.defaults.nextButton);
this.settings.prevButton = this.init.navButtons(options.prevButton, $.fn.sequence.defaults.prevButton);
this.settings.prependPauseIcon = (this.settings.prependPauseIcon != undefined)
? this.settings.prependPauseIcon
: this.container;
if(this.hasTouch){
this.settings.calculatedSwipeThreshold = self.container.width() * (this.settings.swipeThreshold / 100);
}
this.settings.pauseIcon = this.init.pauseIcon(this.settings.pauseIcon, this.settings.pauseIconSrc);
this.currentFrame = this.sequence.children("li:nth-child("+this.settings.startingFrameID+")").addClas s("current");
this.currentFrameChildren = this.currentFrame.children();
this.currentFrameID = this.settings.startingFrameID;
this.nextFrameID = this.currentFrameID;
this.sequence.children("li").children().removeClas s("animate-in");
this.direction;
this.sequence.css({"width": "100%", "height": "100%"}); //set the sequence list to 100% width/height just incase it hasn't been specified in the CSS
if(this.transitionsSupported){ //initiate the full featured Sequence if transitions are supported...
whenFirstAnimateInEnds = function(){
animationComplete = function(){
self.settings.afterNextFrameAnimatesIn();
self.active = false;
if(self.settings.autoPlay){
autoPlaySequence = function(){self.autoPlaySequence()};
clearTimeout(self.sequenceTimer);
self.sequenceTimer = setTimeout(autoPlaySequence, self.settings.autoPlayDelay, self);
}
}
self.waitForAnimationsToComplete(self.currentFrame Children, animationComplete);
}
if(!this.settings.animateStartingFrameIn){ //start first frame in animated in position
self.modifyElements(self.currentFrameChildren, "0s");
self.currentFrameChildren.addClass("animate-in");
setTimeout(function(){
self.modifyElements(self.currentFrameChildren, "");
}, 100);
if(self.settings.autoPlay){
autoPlaySequence = function(){self.autoPlaySequence()};
clearTimeout(self.sequenceTimer);
self.sequenceTimer = setTimeout(autoPlaySequence, self.settings.autoPlayDelay, self);
}
}else if(this.settings.autoPlayDirection -1 && this.settings.animateStartingFrameIn){
this.active = true;
self.modifyElements(self.currentFrameChildren, "0s");
self.currentFrameChildren.addClass("animate-out");
this.settings.beforeNextFrameAnimatesIn();
setTimeout(function(){
self.modifyElements(self.currentFrameChildren, "");
self.currentFrameChildren.removeClass("animate-out");
self.currentFrameChildren.addClass("animate-in");
}, 100);
whenFirstAnimateInEnds();
}else{
this.active = true;
self.settings.beforeCurrentFrameAnimatesIn();
setTimeout(function(){
self.modifyElements(self.currentFrameChildren, "");
self.currentFrameChildren.addClass("animate-in");
}, 100);
whenFirstAnimateInEnds();
}
}else{ //initiate a basic slider for browsers that don't support CSS3 transitions
this.sequence.children("li").children().addClass(" animate-in");
this.currentFrame.css("z-index", this.numberOfFrames);
this.sequence.children(":not(li:nth-child("+this.settings.startingFrameID+"))").css({" display": "none", "opacity": 0});
if(self.settings.autoPlay){
autoPlaySequence = function(){self.autoPlaySequence()};
clearTimeout(self.sequenceTimer);
self.sequenceTimer = setTimeout(autoPlaySequence, self.settings.autoPlayDelay, self);
}
}
//END INIT
//EVENTS
if(this.settings.nextButton != undefined){
this.settings.nextButton.click(function(){
self.next();
});
}
if(this.settings.prevButton != undefined){
this.settings.prevButton.click(function(){
self.prev();
});
}
if(this.settings.keysNavigate){
$(window).keydown(function(e){
if(e.keyCode == 39){
self.next();
}
if(e.keyCode == 37){
self.prev();
}
});
}
if(this.settings.pauseOnHover && this.settings.autoPlay){
this.hoverEvent = this.sequence.hover(function(){
self.settings.autoPlay = false;
clearTimeout(self.sequenceTimer);
$(self.settings.pauseIcon).show();
}, function(){
self.settings.autoPlay = true;
autoPlaySequence = function(){self.autoPlaySequence()};
clearTimeout(self.sequenceTimer);
self.sequenceTimer = setTimeout(autoPlaySequence, self.settings.autoPlayDelay, self);
$(self.settings.pauseIcon).hide();
});
}
if(this.settings.touchEnabled && this.hasTouch){
var touch,
touches = {
"touchstart": -1,
"touchmove" : -1,
"swipeDirection" : ""
};
this.sequence.bind("touchstart touchmove touchend", function(e){
e.preventDefault();
switch(e.originalEvent.type){
case "touchstart":
case "touchmove":
touches[e.originalEvent.type] = e.originalEvent.touches[0].pageX;
break;
case 'touchend':
if(touches["touchstart"] > -1 && touches["touchmove"] > self.settings.calculatedSwipeThreshold){
if(touches["touchstart"] < touches["touchmove"]){
self.next();
}else{
self.prev();
}
}
default:
break;
}
});
}
$(window).resize(function(){ //if the window is resized...
self.settings.calculatedSwipeThreshold = self.container.width() * (self.settings.swipeThreshold / 100); //recalculate the swipe threshold
});
//END EVENTS
} //END CONSTRUCTOR
Sequence.prototype = {
autoPlaySequence: function(direction){
var self = this;
if(self.settings.autoPlayDirection == 1){
self.next();
}else{
self.prev();
}
},
modifyElements: function($elementToReset, cssValue){
var self = this;
$elementToReset.css(
self.prefixCSS(self.prefix, {
"transition-duration": cssValue,
"transition-delay": cssValue,
})
)
},
//adds the browser vendors prefix onto multiple CSS properties
prefixCSS: function(prefix, properties){
css = {};
for(property in properties){
css[prefix + property] = properties[property];
}
return css;
},
//Opera workaround: currently Opera has a bug that prevents retrieving a prefixed CSS property from the DOM, meaning we have to search through the CSS file instead. It's not ideal in terms of performance but hopefully it'll be fixed in the future
getStyleBySelector: function(selector){
css = {};
var sheetList = document.styleSheets, ruleList, i, j;
for(i = sheetList.length - 1; i >= 0; i--){
error = false;
try{
ruleList = sheetList[i].cssRules;
}
catch(e){
error = true;
}
if(!error){
for(j = 0; j < ruleList.length; j++){
if(ruleList[j].type == CSSRule.STYLE_RULE && ruleList[j].selectorText == selector){
css["-o-transition-duration"] = ruleList[j].style.OTransitionDuration;
css["-o-transition-delay"] = ruleList[j].style.OTransitionDelay;
return css;
}
}
}
}
return null;
},
startAutoPlay: function(wait, newAutoPlayDelay){
var self = this;
wait = (wait == undefined) ? 0 : wait;
self.settings.autoPlayDelay = (newAutoPlayDelay == undefined) ? self.settings.autoPlayDelay : newAutoPlayDelay;
self.settings.autoPlay = true;
autoPlaySequence = function(){self.autoPlaySequence()};
clearTimeout(self.sequenceTimer);
self.sequenceTimer = setTimeout(autoPlaySequence, self.settings.autoPlayDelay, self);
if(self.settings.pauseOnHover){
self.hoverEvent = self.sequence.hover(function(){
self.settings.autoPlay = false;
clearTimeout(self.sequenceTimer);
$(self.settings.pauseIcon).show();
}, function(){
self.settings.autoPlay = true;
autoPlaySequence = function(){self.autoPlaySequence()};
clearTimeout(self.sequenceTimer);
self.sequenceTimer = setTimeout(autoPlaySequence, self.settings.autoPlayDelay, self);
$(self.settings.pauseIcon).hide();
});
}
},
stopAutoPlay: function(){
var self = this;
self.settings.autoPlay = false;
clearTimeout(self.sequenceTimer);
if(self.hoverEvent != undefined){
self.hoverEvent.unbind();
}
},
next: function(){
var self = this;
if(!self.active){
if(self.settings.cycle || (!self.settings.cycle && self.currentFrame.index() + 1 != self.numberOfFrames)){
if(self.paused){
self.paused = false;
self.startAutoPlay();
}
self.nextFrameID = (self.currentFrame.index() + 1 != self.numberOfFrames) ? self.currentFrameID + 1 : 1;
self.goTo(self.nextFrameID, 1); //go to the next frame
}else if(self.settings.autoPlayDirection == 1){
self.paused = true;
self.stopAutoPlay();
}
}
},
prev: function(){
var self = this;
if(!self.active){
if(self.settings.cycle || (!self.settings.cycle && self.currentFrame.index() + 1 != 1)){
if(self.paused){
self.paused = false;
self.startAutoPlay();
}
self.nextFrameID = (self.currentFrame.index() + 1 == 1) ? self.numberOfFrames : self.currentFrameID - 1;
self.goTo(self.nextFrameID, -1); //go to the prev frame
}else if(self.settings.autoPlayDirection == -1){
self.paused = true;
self.stopAutoPlay();
}
}
},
goTo: function(id, direction){ //where the magic happens
var self = this;
if(id == self.numberOfFrames){
self.settings.beforeLastFrameAnimatesIn();
}else if(id == 1){
self.settings.beforeFirstFrameAnimatesIn();
}
if(id == self.currentFrame.index() + 1){
return false;
}else if(!self.active){ //if there are no animations running...
self.active = true; //set the sequence as active
self.currentFrame = self.sequence.children(".current"); //find which frame is active
nextFrame = self.sequence.children("li:nth-child("+id+")"); //grab the next frame
if(direction == undefined){ //if no direction is specified...
self.direction = (id > self.currentFrameID) ? 1 : -1; //work out which way to go based on what frame is currently active
}else{
self.direction = direction;
}
frameChildren = self.currentFrame.children(); //save the child elements
nextFrameChildren = nextFrame.children(); //save the child elements
if(self.transitionsSupported){ //if the browser supports CSS3 transitions...
self.settings.beforeCurrentFrameAnimatesOut();
self.animateOut(self.direction);
animateIn = function(){
self.animateIn(self.direction);
self.currentFrameID = id;
}
switch(self.settings.delayDuringOutInTransitions){
case true:
self.waitForAnimationsToComplete(frameChildren, animateIn);
break;
case false:
animateIn();
break;
default:
setTimeout(animateIn, self.settings.delayDuringOutInTransitions);
break;
}
}else{ //if the browser doesn't support CSS3 transitions...
self.sequence.children("li").css({"position": "relative"}); //this allows for fadein/out in IE
self.currentFrame.animate({"opacity": 0}, self.settings.fallbackTheme.speed, function(){ //hide the current frame
self.currentFrame.css({"display": "none", "z-index": "1"});
self.currentFrame.removeClass("current");
nextFrame.addClass("current").css({"display": "block", "z-index": self.numberOfFrames}).animate({"opacity": 1}, 500); //make the next frame the current one and show it
self.currentFrame = nextFrame;
self.currentFrameID = self.currentFrame.index() + 1;
self.active = false;
if(self.settings.autoPlay){
autoPlaySequence = function(){self.autoPlaySequence()};
clearTimeout(self.sequenceTimer);
self.sequenceTimer = setTimeout(autoPlaySequence, self.settings.autoPlayDelay, self);
}
});
}
}
},
animateOut: function(direction){
var self = this;
self.settings.beforeCurrentFrameAnimatesIn();
if(direction == 1){ //if user hit next button...
//reset the position of the next frames elements ready for animating in again
self.modifyElements(nextFrameChildren, "0s");
nextFrameChildren.removeClass("animate-out");
//make the current frames elements animate out
self.modifyElements(frameChildren, "");
if(!self.settings.disableAnimateOut){
frameChildren.addClass("animate-out").removeClass("animate-in");
}
}
if(direction == -1){ //if the user hit prev button
self.modifyElements(nextFrameChildren, "0s");
if(!self.settings.disableAnimateOut){
nextFrameChildren.addClass("animate-out");
}else{
self.active = false;
}
self.modifyElements(frameChildren, "");
frameChildren.each(function(){
if(self.prefix == "-o-"){
selector = "." + $(this).attr("class").replace(" ", ".");
previousFrameTransitionProperties = self.getStyleBySelector(selector);
self.transitionProperties["transition-duration"] = previousFrameTransitionProperties["-o-transition-duration"];
self.transitionProperties["transition-delay"] = previousFrameTransitionProperties["-o-transition-delay"];
self.transitionProperties["transition-delay"] = (self.transitionProperties["transition-delay"] == "") ? "0s" : self.transitionProperties["transition-delay"];
}else{
self.transitionProperties["transition-duration"] = $(this).css(self.prefix + "transition-duration");
self.transitionProperties["transition-delay"] = $(this).css(self.prefix + "transition-delay");
}
$(this).css(
self.prefixCSS(self.prefix, self.transitionProperties)
).removeClass("animate-in");
})
}
},
waitForAnimationsToComplete: function(elements, onceComplete){
var self = this;
elementsAnimated = {};
elements.each(function(){
elementsAnimated[$(this).attr("class")] = false;
});
self.currentFrame.bind(self.transitionEnd, function(e){ //wait for elements to finish animating...
elementsAnimated[e.target.className] = true;
total = 0;
for(element in elementsAnimated){
if(elementsAnimated[element] == true){
total++;
}
}
if(total == elements.length){
onceComplete();
}
});
},
animateIn: function(direction){
var self = this;
self.currentFrame.removeClass("current"); //remove the active class
self.currentFrame.unbind(self.transitionEnd); //remove the animation end event
nextFrame.addClass("current"); //activate the next frame
self.currentFrame = nextFrame; //the next frame is now the current one
if(direction == 1){
self.currentFrameID = (self.currentFrameID != self.numberOfFrames) ? self.currentFrameID + 1 : 1;
}else{
self.currentFrameID = (self.currentFrameID != 1) ? self.currentFrameID - 1 : self.numberOfFrames;
}
nextFrameChildren = nextFrame.children(); //save the child elements
frameChildren = self.currentFrame.children(); //save the child elements (the ones we'll animate) in an array
self.settings.beforeNextFrameAnimatesIn();
if(direction == 1){ //if user hit next button...
//reset the position of the next frames elements ready for animating in again
self.modifyElements(nextFrameChildren, "0s");
nextFrameChildren.removeClass("animate-out");
setTimeout(function(){
frameChildren.removeClass("animate-out");
self.modifyElements(frameChildren, "");
frameChildren.addClass("animate-in");
whenAnimationEnds();
}, 50);
}
if(direction == -1){ //if the user hit prev button
setTimeout(function(){
self.modifyElements(frameChildren, "");
frameChildren.addClass("animate-in").removeClass("animate-out");
whenAnimationEnds();
}, 50);
}
whenAnimationEnds = function(){
unbind = function(){
self.settings.afterNextFrameAnimatesIn();
if(self.currentFrameID == self.numberOfFrames){
self.settings.afterLastFrameAnimatesIn();
}else if(self.currentFrameID == 1){
self.settings.afterFirstFrameAnimatesIn();
}
self.currentFrame.unbind(self.transitionEnd); //unbind waiting for the frame to finish as it's no longer needed
self.active = false; //set the sequence as inactive to allow the next frames to be activated
if(self.settings.autoPlay){
autoPlaySequence = function(){self.autoPlaySequence()};
clearTimeout(self.sequenceTimer);
self.sequenceTimer = setTimeout(autoPlaySequence, self.settings.autoPlayDelay, self);
}
}
self.waitForAnimationsToComplete(nextFrameChildren , unbind);
}
}
}; //END PROTOTYPE
$.fn.sequence = function(options){
return this.each(function(){
var sequence = new Sequence($(this), options);
$(this).data("sequence", sequence);
});
};
$.fn.sequence.defaults = {
nextButton: ".next",
prependNextButton: true,
prevButton: ".prev",
prependPrevButton: true,
startingFrameID: 1,
autoPlay: true,
autoPlayDirection: 1,
animatestartingFrameIn: false,
autoPlayDelay: 5000,
pauseOnHover: true,
pauseIcon: false,
prependPauseIcon: true,
pauseIconSrc: "images/pause-icon.png",
keysNavigate: true,
delayDuringOutInTransitions: 1000,
touchEnabled: true,
swipeThreshold: 15,
cycle: true,
disableAnimateOut: false,
fallbackTheme: {
speed: 500
},
//Callbacks are a work in progress and not it's possible not all of them will make it into v1.0
beforeCurrentFrameAnimatesOut: function(){}, //triggers before current frame begins to animate out
beforeNextFrameAnimatesIn: function(){}, //triggers before next frame begins to animate in
afterNextFrameAnimatesIn: function(){}, //triggers after next frame animates in (and becomes the current frame)
beforeCurrentFrameAnimatesIn: function(){},
beforeFirstFrameAnimatesIn: function(){}, //triggers before the first frame animates in
afterFirstFrameAnimatesIn: function(){}, //triggers after the first frame animates in
beforeLastFrameAnimatesIn: function(){}, //triggers before the last frame animates in
afterLastFrameAnimatesIn: function(){} //triggers after the last frame animates in
};
$.fn.sequence.settings = {};
})(jQuery);
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