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Wiki/buct/jquery.flexisel.js
From 2014.igem.org
(function ($) {
$.fn.flexisel = function(options) {
var defaults = $.extend({
visibleItems : 4,
animationSpeed :1000,
autoPlay : false,
autoPlaySpeed : 3000,
pauseOnHover : true,
setMaxWidthAndHeight : false,
enableResponsiveBreakpoints : true,
clone : true,
responsiveBreakpoints : {
portrait: {
changePoint:480,
visibleItems: 1
},
landscape: {
changePoint:640,
visibleItems: 2
},
tablet: {
changePoint:768,
visibleItems: 3
}
}
}, options);
/******************************
Private Variables
*******************************/
var object = $(this);
var settings = $.extend(defaults, options);
var itemsWidth; // Declare the global width of each item in carousel
var canNavigate = true;
var itemsVisible = settings.visibleItems; // Get visible items
var totalItems = object.children().length; // Get number of elements
var responsivePoints = [];
/******************************
Public Methods
*******************************/
var methods = {
init : function() {
return this.each(function() {
methods.appendHTML();
methods.setEventHandlers();
methods.initializeItems();
});
},
/******************************
Initialize Items
Fully initialize everything. Plugin is loaded and ready after finishing execution
*******************************/
initializeItems : function() {
var listParent = object.parent();
var innerHeight = listParent.height();
var childSet = object.children();
methods.sortResponsiveObject(settings.responsiveBreakpoints);
var innerWidth = listParent.width(); // Set widths
itemsWidth = (innerWidth) / itemsVisible;
childSet.width(itemsWidth);
if (settings.clone) {
childSet.last().insertBefore(childSet.first());
childSet.last().insertBefore(childSet.first());
object.css({
'left' : -itemsWidth
});
}
object.fadeIn();
$(window).trigger("resize"); // needed to position arrows correctly
},
/******************************
Append HTML
Add additional markup needed by plugin to the DOM
*******************************/
appendHTML : function() {
object.addClass("nbs-flexisel-ul");
object.wrap("");
object.find("li").addClass("nbs-flexisel-item");
if (settings.setMaxWidthAndHeight) {
var baseWidth = $(".nbs-flexisel-item img").width();
var baseHeight = $(".nbs-flexisel-item img").height();
$(".nbs-flexisel-item img").css("max-width", baseWidth);
$(".nbs-flexisel-item img").css("max-height", baseHeight);
}
$("").insertAfter(object);
if (settings.clone) {
var cloneContent = object.children().clone();
object.append(cloneContent);
}
},
/******************************
Set Event Handlers
Set events: click, resize, etc
*******************************/
setEventHandlers : function() {
var listParent = object.parent();
var childSet = object.children();
var leftArrow = listParent.find($(".nbs-flexisel-nav-left"));
var rightArrow = listParent.find($(".nbs-flexisel-nav-right"));
$(window).on("resize", function(event) {
methods.setResponsiveEvents();
var innerWidth = $(listParent).width();
var innerHeight = $(listParent).height();
itemsWidth = (innerWidth) / itemsVisible;
childSet.width(itemsWidth);
if (settings.clone) {
object.css({
'left' : -itemsWidth
});
}else {
object.css({
'left' : 0
});
}
var halfArrowHeight = (leftArrow.height()) / 2;
var arrowMargin = (innerHeight / 2) - halfArrowHeight;
leftArrow.css("top", arrowMargin + "px");
rightArrow.css("top", arrowMargin + "px");
});
$(leftArrow).on("click", function(event) {
methods.scrollLeft();
});
$(rightArrow).on("click", function(event) {
methods.scrollRight();
});
if (settings.pauseOnHover == true) {
$(".nbs-flexisel-item").on({
mouseenter : function() {
canNavigate = false;
},
mouseleave : function() {
canNavigate = true;
}
});
}
if (settings.autoPlay == true) {
setInterval(function() {
if (canNavigate == true)
methods.scrollRight();
}, settings.autoPlaySpeed);
}
},
/******************************
Set Responsive Events
Set breakpoints depending on responsiveBreakpoints
*******************************/
setResponsiveEvents: function() {
var contentWidth = $('html').width();
if(settings.enableResponsiveBreakpoints) {
var largestCustom = responsivePoints[responsivePoints.length-1].changePoint; // sorted array
for(var i in responsivePoints) {
if(contentWidth >= largestCustom) { // set to default if width greater than largest custom responsiveBreakpoint
itemsVisible = settings.visibleItems;
break;
}
else { // determine custom responsiveBreakpoint to use
if(contentWidth < responsivePoints[i].changePoint) {
itemsVisible = responsivePoints[i].visibleItems;
break;
}
else
continue;
}
}
}
},
/******************************
Sort Responsive Object
Gets all the settings in resposiveBreakpoints and sorts them into an array
*******************************/
sortResponsiveObject: function(obj) {
var responsiveObjects = [];
for(var i in obj) {
responsiveObjects.push(obj[i]);
}
responsiveObjects.sort(function(a, b) {
return a.changePoint - b.changePoint;
});
responsivePoints = responsiveObjects;
},
/******************************
Scroll Left
*******************************/
scrollLeft : function() {
if (object.position().left < 0) {
if (canNavigate == true) {
canNavigate = false;
var listParent = object.parent();
var innerWidth = listParent.width();
itemsWidth = (innerWidth) / itemsVisible;
var childSet = object.children();
object.animate({
'left' : "+=" + itemsWidth
}, {
queue : false,
duration : settings.animationSpeed,
easing : "linear",
complete : function() {
if (settings.clone) {
childSet.last().insertBefore(
childSet.first()); // Get the first list item and put it after the last list item (that's how the infinite effects is made)
}
methods.adjustScroll();
canNavigate = true;
}
});
}
}
},
/******************************
Scroll Right
*******************************/
scrollRight : function() {
var listParent = object.parent();
var innerWidth = listParent.width();
itemsWidth = (innerWidth) / itemsVisible;
var difObject = (itemsWidth - innerWidth);
var objPosition = (object.position().left + ((totalItems-itemsVisible)*itemsWidth)-innerWidth);
if((difObject < Math.ceil(objPosition)) && (!settings.clone)){
if (canNavigate == true) {
canNavigate = false;
object.animate({
'left' : "-=" + itemsWidth
}, {
queue : false,
duration : settings.animationSpeed,
easing : "linear",
complete : function() {
methods.adjustScroll();
canNavigate = true;
}
});
}
} else if(settings.clone){
if (canNavigate == true) {
canNavigate = false;
var childSet = object.children();
object.animate({
'left' : "-=" + itemsWidth
}, {
queue : false,
duration : settings.animationSpeed,
easing : "linear",
complete : function() {
childSet.first().insertAfter(childSet.last()); // Get the first list item and put it after the last list item (that's how the infinite effects is made)
methods.adjustScroll();
canNavigate = true;
}
});
}
};
},
/******************************
Adjust Scroll
*******************************/
adjustScroll : function() {
var listParent = object.parent();
var childSet = object.children();
var innerWidth = listParent.width();
itemsWidth = (innerWidth) / itemsVisible;
childSet.width(itemsWidth);
if (settings.clone) {
object.css({
'left' : -itemsWidth
});
}
}
};
if (methods[options]) { // $("#element").pluginName('methodName', 'arg1', 'arg2');
return methods[options].apply(this, Array.prototype.slice.call(arguments, 1));
} else if (typeof options === 'object' || !options) { // $("#element").pluginName({ option: 1, option:2 });
return methods.init.apply(this);
} else {
$.error('Method "' + method + '" does not exist in flexisel plugin!');
}
};
})(jQuery);
