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jquery.elevatezoom.js
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/*
* jQuery elevateZoom 2.5.6
* Demo's and documentation:
* www.elevateweb.co.uk/image-zoom
*
* Copyright (c) 2012 Andrew Eades
* www.elevateweb.co.uk
*
* Dual licensed under the GPL and MIT licenses.
* http://en.wikipedia.org/wiki/MIT_License
* http://en.wikipedia.org/wiki/GNU_General_Public_License
*/
if ( typeof Object.create !== 'function' ) {
Object.create = function( obj ) {
function F() {};
F.prototype = obj;
return new F();
};
}
(function( $, window, document, undefined ) {
var ElevateZoom = {
init: function( options, elem ) {
var self = this;
self.elem = elem;
self.$elem = $( elem );
self.imageSrc = self.$elem.data("zoom-image") ? self.$elem.data("zoom-image") : self.$elem.attr("src");
self.options = $.extend( {}, $.fn.elevateZoom.options, options );
//TINT OVERRIDE SETTINGS
if(self.options.tint) {
self.options.lensColour = "none", //colour of the lens background
self.options.lensOpacity = "1" //opacity of the lens
}
//INNER OVERRIDE SETTINGS
if(self.options.zoomType == "inner") {self.options.showLens = false;}
//Remove alt on hover
self.$elem.parent().removeAttr('title').removeAttr('alt');
self.zoomImage = self.imageSrc;
self.refresh( 1 );
//Create the image swap from the gallery
$('#'+self.options.gallery + ' a').click( function(e) {
//Set a class on the currently active gallery image
if(self.options.galleryActiveClass){
$('#'+self.options.gallery + ' a').removeClass(self.options.galleryActiveClass);
$(this).addClass(self.options.galleryActiveClass);
}
//stop any link on the a tag from working
e.preventDefault();
//call the swap image function
if($(this).data("zoom-image")){self.zoomImagePre = $(this).data("zoom-image")}
else{self.zoomImagePre = $(this).data("image");}
self.swaptheimage($(this).data("image"), self.zoomImagePre);
return false;
});
},
refresh: function( length ) {
var self = this;
setTimeout(function() {
self.fetch(self.imageSrc);
}, length || self.options.refresh );
},
fetch: function(imgsrc) {
//get the image
var self = this;
var newImg = new Image();
newImg.onload = function() {
//set the large image dimensions - used to calculte ratio's
self.largeWidth = newImg.width;
self.largeHeight = newImg.height;
//once image is loaded start the calls
self.startZoom();
self.currentImage = self.imageSrc;
//let caller know image has been loaded
self.options.onZoomedImageLoaded(self.$elem);
}
newImg.src = imgsrc; // this must be done AFTER setting onload
return;
},
startZoom: function( ) {
var self = this;
//get dimensions of the non zoomed image
self.nzWidth = self.$elem.width();
self.nzHeight = self.$elem.height();
//get offset of the non zoomed image
self.nzOffset = self.$elem.offset();
//calculate the width ratio of the large/small image
self.widthRatio = (self.largeWidth/self.options.zoomLevel) / self.nzWidth;
self.heightRatio = (self.largeHeight/self.options.zoomLevel) / self.nzHeight;
//if window zoom
if(self.options.zoomType == "window") {
self.zoomWindowStyle = "overflow: hidden;"
+ "background-position: 0px 0px;text-align:center;"
+ "background-color: " + String(self.options.zoomWindowBgColour)
+ ";width: " + String(self.options.zoomWindowWidth) + "px;"
+ "height: " + String(self.options.zoomWindowHeight)
+ "px;float: left;"
+ "background-size: "+ self.largeWidth/self.options.zoomLevel+ "px " +self.largeHeight/self.options.zoomLevel + "px;"
+ "display: none;z-index:100"
+ "px;border: " + String(self.options.borderSize)
+ "px solid " + self.options.borderColour
+ ";background-repeat: no-repeat;"
+ "position: absolute;";
}
//if inner zoom
if(self.options.zoomType == "inner") {
self.zoomWindowStyle = "overflow: hidden;"
+ "background-position: 0px 0px;"
+ "width: " + String(self.nzWidth) + "px;"
+ "height: " + String(self.nzHeight)
+ "px;float: left;"
+ "display: none;"
+ "cursor:"+(self.options.cursor)+";"
+ "px solid " + self.options.borderColour
+ ";background-repeat: no-repeat;"
+ "position: absolute;";
}
//lens style for window zoom
if(self.options.zoomType == "window") {
// adjust images less than the window height
if(self.nzHeight < self.options.zoomWindowWidth/self.widthRatio){
lensHeight = self.nzHeight;
}
else{
lensHeight = String((self.options.zoomWindowHeight/self.heightRatio))
}
if(self.largeWidth < self.options.zoomWindowWidth){
lensWidth = self.nzWidth;
}
else{
lensWidth = (self.options.zoomWindowWidth/self.widthRatio);
}
self.lensStyle = "background-position: 0px 0px;width: " + String((self.options.zoomWindowWidth)/self.widthRatio) + "px;height: " + String((self.options.zoomWindowHeight)/self.heightRatio)
+ "px;float: right;display: none;"
+ "overflow: hidden;"
+ "z-index: 999;"
+ "-webkit-transform: translateZ(0);"
+ "opacity:"+(self.options.lensOpacity)+";filter: alpha(opacity = "+(self.options.lensOpacity*100)+"); zoom:1;"
+ "width:"+lensWidth+"px;"
+ "height:"+lensHeight+"px;"
+ "background-color:"+(self.options.lensColour)+";"
+ "cursor:"+(self.options.cursor)+";"
+ "border: "+(self.options.lensBorderSize)+"px" +
" solid "+(self.options.lensBorderColour)+";background-repeat: no-repeat;position: absolute;";
}
//tint style
self.tintStyle = "display: block;"
+ "position: absolute;"
+ "background-color: "+self.options.tintColour+";"
+ "filter:alpha(opacity=0);"
+ "opacity: 0;"
+ "width: " + self.nzWidth + "px;"
+ "height: " + self.nzHeight + "px;"
;
//lens style for lens zoom with optional round for modern browsers
self.lensRound = '';
if(self.options.zoomType == "lens") {
self.lensStyle = "background-position: 0px 0px;"
+ "float: left;display: none;"
+ "border: " + String(self.options.borderSize) + "px solid " + self.options.borderColour+";"
+ "width:"+ String(self.options.lensSize) +"px;"
+ "height:"+ String(self.options.lensSize)+"px;"
+ "background-repeat: no-repeat;position: absolute;";
}
//does not round in all browsers
if(self.options.lensShape == "round") {
self.lensRound = "border-top-left-radius: " + String(self.options.lensSize / 2 + self.options.borderSize) + "px;"
+ "border-top-right-radius: " + String(self.options.lensSize / 2 + self.options.borderSize) + "px;"
+ "border-bottom-left-radius: " + String(self.options.lensSize / 2 + self.options.borderSize) + "px;"
+ "border-bottom-right-radius: " + String(self.options.lensSize / 2 + self.options.borderSize) + "px;";
}
//create the div's + ""
//self.zoomContainer = $('<div/>').addClass('zoomContainer').css({"position":"relative", "height":self.nzHeight, "width":self.nzWidth});
self.zoomContainer = $('<div class="zoomContainer" style="-webkit-transform: translateZ(0);position:absolute;left:'+self.nzOffset.left+'px;top:'+self.nzOffset.top+'px;height:'+self.nzHeight+'px;width:'+self.nzWidth+'px;"></div>');
$('body').append(self.zoomContainer);
//this will add overflow hidden and contrain the lens on lens mode
if(self.options.containLensZoom && self.options.zoomType == "lens"){
self.zoomContainer.css("overflow", "hidden");
}
if(self.options.zoomType != "inner") {
self.zoomLens = $("<div class='zoomLens' style='" + self.lensStyle + self.lensRound +"'> </div>")
.appendTo(self.zoomContainer)
.click(function () {
self.$elem.trigger('click');
});
}
if(self.options.tint) {
self.tintContainer = $('<div/>').addClass('tintContainer');
self.zoomTint = $("<div class='zoomTint' style='"+self.tintStyle+"'></div>");
self.zoomLens.wrap(self.tintContainer);
self.zoomTintcss = self.zoomLens.after(self.zoomTint);
//if tint enabled - set an image to show over the tint
self.zoomTintImage = $('<img style="position: absolute; left: 0px; top: 0px; max-width: none; width: '+self.nzWidth+'px; height: '+self.nzHeight+'px;" src="'+self.imageSrc+'">')
.appendTo(self.zoomLens)
.click(function () {
self.$elem.trigger('click');
});
}
//create zoom window
if(isNaN(self.options.zoomWindowPosition)){
self.zoomWindow = $("<div style='z-index:999;left:"+(self.windowOffsetLeft)+"px;top:"+(self.windowOffsetTop)+"px;" + self.zoomWindowStyle + "' class='zoomWindow'> </div>")
.appendTo('body')
.click(function () {
self.$elem.trigger('click');
});
}else{
self.zoomWindow = $("<div style='z-index:999;left:"+(self.windowOffsetLeft)+"px;top:"+(self.windowOffsetTop)+"px;" + self.zoomWindowStyle + "' class='zoomWindow'> </div>")
.appendTo(self.zoomContainer)
.click(function () {
self.$elem.trigger('click');
});
}
self.zoomWindowContainer = $('<div/>').addClass('zoomWindowContainer').css("width",self.options.zoomWindowWidth);
self.zoomWindow.wrap(self.zoomWindowContainer);
// self.captionStyle = "text-align: left;background-color: black;color: white;font-weight: bold;padding: 10px;font-family: sans-serif;font-size: 11px";
// self.zoomCaption = $('<div class="elevatezoom-caption" style="'+self.captionStyle+'display: block; width: 280px;">INSERT ALT TAG</div>').appendTo(self.zoomWindow.parent());
if(self.options.zoomType == "lens") {
self.zoomLens.css({ backgroundImage: "url('" + self.imageSrc + "')" });
}
if(self.options.zoomType == "window") {
self.zoomWindow.css({ backgroundImage: "url('" + self.imageSrc + "')" });
}
if(self.options.zoomType == "inner") {
self.zoomWindow.css({ backgroundImage: "url('" + self.imageSrc + "')" });
}
/*-------------------END THE ZOOM WINDOW AND LENS----------------------------------*/
//touch events
self.$elem.bind('touchmove', function(e){
e.preventDefault();
var touch = e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
self.setPosition(touch);
});
self.zoomContainer.bind('touchmove', function(e){
if(self.options.zoomType == "inner") {
if(self.options.zoomWindowFadeIn){
self.zoomWindow.stop(true, true).fadeIn(self.options.zoomWindowFadeIn);
}
else{self.zoomWindow.show();}
}
e.preventDefault();
var touch = e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
self.setPosition(touch);
});
self.zoomContainer.bind('touchend', function(e){
self.zoomWindow.hide();
if(self.options.showLens) {self.zoomLens.hide();}
if(self.options.tint) {self.zoomTint.hide();}
});
self.$elem.bind('touchend', function(e){
self.zoomWindow.hide();
if(self.options.showLens) {self.zoomLens.hide();}
if(self.options.tint) {self.zoomTint.hide();}
});
if(self.options.showLens) {
self.zoomLens.bind('touchmove', function(e){
e.preventDefault();
var touch = e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
self.setPosition(touch);
});
self.zoomLens.bind('touchend', function(e){
self.zoomWindow.hide();
if(self.options.showLens) {self.zoomLens.hide();}
if(self.options.tint) {self.zoomTint.hide();}
});
}
//Needed to work in IE
self.$elem.bind('mousemove', function(e){
//make sure on orientation change the setposition is not fired
if(self.lastX !== e.clientX || self.lastY !== e.clientY){
self.setPosition(e);
}
self.lastX = e.clientX;
self.lastY = e.clientY;
});
self.zoomContainer.bind('mousemove', function(e){
//make sure on orientation change the setposition is not fired
if(self.lastX !== e.clientX || self.lastY !== e.clientY){
self.setPosition(e);
}
self.lastX = e.clientX;
self.lastY = e.clientY;
});
if(self.options.zoomType != "inner") {
self.zoomLens.bind('mousemove', function(e){
//make sure on orientation change the setposition is not fired
if(self.lastX !== e.clientX || self.lastY !== e.clientY){
self.setPosition(e);
}
self.lastX = e.clientX;
self.lastY = e.clientY;
});
}
if(self.options.tint) {
self.zoomTint.bind('mousemove', function(e){
//make sure on orientation change the setposition is not fired
if(self.lastX !== e.clientX || self.lastY !== e.clientY){
self.setPosition(e);
}
self.lastX = e.clientX;
self.lastY = e.clientY;
});
}
if(self.options.zoomType == "inner") {
self.zoomWindow.bind('mousemove', function(e) {
//make sure on orientation change the setposition is not fired
if(self.lastX !== e.clientX || self.lastY !== e.clientY){
self.setPosition(e);
}
self.lastX = e.clientX;
self.lastY = e.clientY;
});
}
// lensFadeOut: 500, zoomTintFadeIn
self.zoomContainer.mouseenter(function(){
if(self.options.zoomType == "inner") {
if(self.options.zoomWindowFadeIn){
self.zoomWindow.stop(true, true).fadeIn(self.options.zoomWindowFadeIn);
}
else{self.zoomWindow.show();}
}
if(self.options.zoomType == "window") {
if(self.options.zoomWindowFadeIn){
self.zoomWindow.stop(true, true).fadeIn(self.options.zoomWindowFadeIn);
}
else{self.zoomWindow.show();}
}
if(self.options.showLens) {
if(self.options.lensFadeIn){
self.zoomLens.stop(true, true).fadeIn(self.options.lensFadeIn);
}
else{self.zoomLens.show();}
}
if(self.options.tint) {
if(self.options.zoomTintFadeIn){
self.zoomTint.stop(true, true).fadeIn(self.options.zoomTintFadeIn);
}
else{self.zoomTint.show();}
// self.zoomTint.show();
}
}).mouseleave(function(){
self.zoomWindow.hide();
if(self.options.showLens) {self.zoomLens.hide();}
if(self.options.tint) {
self.zoomTint.hide();
}
});
//end ove image
self.$elem.mouseenter(function(){
if(self.options.zoomType == "inner") {
if(self.options.zoomWindowFadeIn){
self.zoomWindow.stop(true, true).fadeIn(self.options.zoomWindowFadeIn);
}
else{self.zoomWindow.show();}
}
if(self.options.zoomType == "window") {
if(self.options.zoomWindowFadeIn){
self.zoomWindow.stop(true, true).fadeIn(self.options.zoomWindowFadeIn);
}
else{self.zoomWindow.show();}
}
if(self.options.showLens) {
if(self.options.lensFadeIn){
self.zoomLens.stop(true, true).fadeIn(self.options.lensFadeIn);
}
else{self.zoomLens.show();}
}
if(self.options.tint) {
if(self.options.zoomTintFadeIn){
self.zoomTint.stop(true, true).fadeIn(self.options.zoomTintFadeIn);
}
else{self.zoomTint.show();}
// self.zoomTint.show();
}
}).mouseleave(function(){
self.zoomWindow.hide();
if(self.options.showLens) {self.zoomLens.hide();}
if(self.options.tint) {
self.zoomTint.hide();
}
});
//end ove image
if(self.options.zoomType != "inner") {
self.zoomLens.mouseenter(function(){
if(self.options.zoomType == "inner") {
if(self.options.zoomWindowFadeIn){
self.zoomWindow.stop(true, true).fadeIn(self.options.zoomWindowFadeIn);
}
else{
self.zoomWindow.show();
}
}
if(self.options.zoomType == "window") {self.zoomWindow.show();}
if(self.options.showLens) {self.zoomLens.show();}
if(self.options.tint) {self.zoomTint.show(); }
}).mouseleave(function(){
if(self.options.zoomWindowFadeOut){
self.zoomWindow.stop(true, true).fadeOut(self.options.zoomWindowFadeOut);
}
else{self.zoomWindow.hide();}
if(self.options.zoomType != "inner") {
self.zoomLens.hide();
}
if(self.options.tint) {self.zoomTint.hide(); }
});
}
if(self.options.tint) {
self.zoomTint.mouseenter(function(){
if(self.options.zoomType == "inner") {self.zoomWindow.show();}
if(self.options.zoomType == "window") {self.zoomWindow.show();}
if(self.options.showLens) {self.zoomLens.show();}
self.zoomTint.show();
}).mouseleave(function(){
self.zoomWindow.hide();
if(self.options.zoomType != "inner") {
self.zoomLens.hide();
}
self.zoomTint.hide();
});
}
if(self.options.zoomType == "inner") {
self.zoomWindow.mouseenter(function(){
if(self.options.zoomType == "inner") {self.zoomWindow.show();}
if(self.options.zoomType == "window") {self.zoomWindow.show();}
if(self.options.showLens) {self.zoomLens.show();}
}).mouseleave(function(){
if(self.options.zoomWindowFadeOut){
self.zoomWindow.stop(true, true).fadeOut(self.options.zoomWindowFadeOut);
}
else{self.zoomWindow.hide();}
if(self.options.zoomType != "inner") {
self.zoomLens.hide();
}
});
}
},
setPosition: function(e) {
var self = this;
//recaclc offset each time in case the image moves
//this can be caused by other on page elements
self.nzHeight = self.$elem.height();
self.nzWidth = self.$elem.width();
self.nzOffset = self.$elem.offset();
if(self.options.tint) {
self.zoomTint.css({ top: 0});
self.zoomTint.css({ left: 0});
}
//set responsive
//will checking if the image needs changing before running this code work faster?
if(self.options.responsive){
if(self.nzHeight < self.options.zoomWindowWidth/self.widthRatio){
lensHeight = self.nzHeight;
}
else{
lensHeight = String((self.options.zoomWindowHeight/self.heightRatio))
}
if(self.largeWidth < self.options.zoomWindowWidth){
lensWidth = self.nzHWidth;
}
else{
lensWidth = (self.options.zoomWindowWidth/self.widthRatio);
}
self.widthRatio = self.largeWidth / self.nzWidth;
self.heightRatio = self.largeHeight / self.nzHeight;
self.zoomLens.css({ width: String((self.options.zoomWindowWidth)/self.widthRatio) + 'px', height: String((self.options.zoomWindowHeight)/self.heightRatio) + 'px' })
//end responsive image change
}
//container fix
self.zoomContainer.css({ top: self.nzOffset.top});
self.zoomContainer.css({ left: self.nzOffset.left});
self.mouseLeft = parseInt(e.pageX - self.nzOffset.left);
self.mouseTop = parseInt(e.pageY - self.nzOffset.top);
//calculate the Location of the Lens
//calculate the bound regions - but only if zoom window
if(self.options.zoomType == "window") {
self.Etoppos = (self.mouseTop < (self.zoomLens.height()/2));
self.Eboppos = (self.mouseTop > self.nzHeight - (self.zoomLens.height()/2)-(self.options.lensBorderSize*2));
self.Eloppos = (self.mouseLeft < 0+((self.zoomLens.width()/2)));
self.Eroppos = (self.mouseLeft > (self.nzWidth - (self.zoomLens.width()/2)-(self.options.lensBorderSize*2)));
}
//calculate the bound regions - but only for inner zoom
if(self.options.zoomType == "inner"){
self.Etoppos = (self.mouseTop < (self.nzHeight/2)/self.heightRatio );
self.Eboppos = (self.mouseTop > self.nzHeight - ((self.nzHeight/2)/self.heightRatio));
self.Eloppos = (self.mouseLeft < 0+((self.nzWidth/2)/self.widthRatio));
self.Eroppos = (self.mouseLeft > (self.nzWidth - (self.nzWidth/2)/self.widthRatio-(self.options.lensBorderSize*2)));
}
// if the mouse position of the slider is one of the outerbounds, then hide window and lens
if (self.mouseLeft < 0 || self.mouseTop <= 0 || self.mouseLeft > self.nzWidth || self.mouseTop > self.nzHeight ) {
self.zoomWindow.hide();
if(self.options.showLens) {self.zoomLens.hide();}
if(self.options.tint) {self.zoomTint.hide();}
return;
}
//else continue with operations
else {
//should already be visible - but make sure
if(self.options.zoomType == "window") {self.zoomWindow.show();}
if(self.options.tint) {self.zoomTint.show();}
//lens options
if(self.options.showLens) {
self.zoomLens.show();
//set background position of lens
self.lensLeftPos = String(self.mouseLeft - self.zoomLens.width() / 2);
self.lensTopPos = String(self.mouseTop - self.zoomLens.height() / 2);
}
//adjust the background position if the mouse is in one of the outer regions
//Top region
if(self.Etoppos){
self.lensTopPos = 0;
}
//Left Region
if(self.Eloppos){
self.windowLeftPos = 0;
self.lensLeftPos = 0;
self.tintpos=0;
}
//Set bottom and right region for window mode
if(self.options.zoomType == "window") {
if(self.Eboppos){
self.lensTopPos = Math.max( (self.nzHeight)-self.zoomLens.height()-(self.options.lensBorderSize*2), 0 );
}
if(self.Eroppos){
self.lensLeftPos = (self.nzWidth-(self.zoomLens.width())-(self.options.lensBorderSize*2));
}
}
//Set bottom and right region for inner mode
if(self.options.zoomType == "inner") {
if(self.Eboppos){
self.lensTopPos = Math.max( (self.nzHeight)-(self.options.lensBorderSize*2), 0 );
}
if(self.Eroppos){
self.lensLeftPos = (self.nzWidth-(self.nzWidth)-(self.options.lensBorderSize*2));
}
}
//if lens zoom
if(self.options.zoomType == "lens") {
self.windowLeftPos = String(((e.pageX - self.nzOffset.left) * self.widthRatio - self.zoomLens.width() / 2) * (-1));
self.windowTopPos = String(((e.pageY - self.nzOffset.top) * self.heightRatio - self.zoomLens.height() / 2) * (-1));
self.zoomLens.css({ backgroundPosition: self.windowLeftPos + 'px ' + self.windowTopPos + 'px' });
self.setWindowPostition(e);
}
//if tint zoom
if(self.options.tint) {
self.setTintPosition(e);
}
//set the css background position
if(self.options.zoomType == "window") {
self.setWindowPostition(e);
}
if(self.options.zoomType == "inner") {
self.setWindowPostition(e);
}
if(self.options.showLens) {
self.zoomLens.css({ left: self.lensLeftPos + 'px', top: self.lensTopPos + 'px' })
}
} //end else
},
setLensPostition: function( e ) {
},
setWindowPostition: function( e ) {
//return obj.slice( 0, count );
var self = this;
if(!isNaN(self.options.zoomWindowPosition)){
switch (self.options.zoomWindowPosition) {
case 1: //done
self.windowOffsetTop = (self.options.zoomWindowOffety);//DONE - 1
self.windowOffsetLeft =(+self.nzWidth); //DONE 1, 2, 3, 4, 16
break;
case 2:
if(self.options.zoomWindowHeight > self.nzHeight){ //positive margin
self.windowOffsetTop = ((self.options.zoomWindowHeight/2)-(self.nzHeight/2))*(-1);
self.windowOffsetLeft =(self.nzWidth); //DONE 1, 2, 3, 4, 16
}
else{ //negative margin
}
break;
case 3: //done
self.windowOffsetTop = (self.nzHeight - self.zoomWindow.height() - (self.options.borderSize*2)); //DONE 3,9
self.windowOffsetLeft =(self.nzWidth); //DONE 1, 2, 3, 4, 16
break;
case 4: //done
self.windowOffsetTop = (self.nzHeight); //DONE - 4,5,6,7,8
self.windowOffsetLeft =(self.nzWidth); //DONE 1, 2, 3, 4, 16
break;
case 5: //done
self.windowOffsetTop = (self.nzHeight); //DONE - 4,5,6,7,8
self.windowOffsetLeft =(self.nzWidth-self.zoomWindow.width()-(self.options.borderSize*2)); //DONE - 5,15
break;
case 6:
if(self.options.zoomWindowHeight > self.nzHeight){ //positive margin
self.windowOffsetTop = (self.nzHeight); //DONE - 4,5,6,7,8
self.windowOffsetLeft =((self.options.zoomWindowWidth/2)-(self.nzWidth/2)+(self.options.borderSize*2))*(-1);
}
else{ //negative margin
}
break;
case 7: //done
self.windowOffsetTop = (self.nzHeight); //DONE - 4,5,6,7,8
self.windowOffsetLeft = 0; //DONE 7, 13
break;
case 8: //done
self.windowOffsetTop = (self.nzHeight); //DONE - 4,5,6,7,8
self.windowOffsetLeft =(self.zoomWindow.width()+(self.options.borderSize*2) )* (-1); //DONE 8,9,10,11,12
break;
case 9: //done
self.windowOffsetTop = (self.nzHeight - self.zoomWindow.height() - (self.options.borderSize*2)); //DONE 3,9
self.windowOffsetLeft =(self.zoomWindow.width()+(self.options.borderSize*2) )* (-1); //DONE 8,9,10,11,12
break;
case 10:
if(self.options.zoomWindowHeight > self.nzHeight){ //positive margin
self.windowOffsetTop = ((self.options.zoomWindowHeight/2)-(self.nzHeight/2))*(-1);
self.windowOffsetLeft =(self.zoomWindow.width()+(self.options.borderSize*2) )* (-1); //DONE 8,9,10,11,12
}
else{ //negative margin
}
break;
case 11:
self.windowOffsetTop = (self.options.zoomWindowOffety);
self.windowOffsetLeft =(self.zoomWindow.width()+(self.options.borderSize*2) )* (-1); //DONE 8,9,10,11,12
break;
case 12: //done
self.windowOffsetTop = (self.zoomWindow.height()+(self.options.borderSize*2))*(-1); //DONE 12,13,14,15,16
self.windowOffsetLeft =(self.zoomWindow.width()+(self.options.borderSize*2) )* (-1); //DONE 8,9,10,11,12
break;
case 13: //done
self.windowOffsetTop = (self.zoomWindow.height()+(self.options.borderSize*2))*(-1); //DONE 12,13,14,15,16
self.windowOffsetLeft =(0); //DONE 7, 13
break;
case 14:
if(self.options.zoomWindowHeight > self.nzHeight){ //positive margin
self.windowOffsetTop = (self.zoomWindow.height()+(self.options.borderSize*2))*(-1); //DONE 12,13,14,15,16
self.windowOffsetLeft =((self.options.zoomWindowWidth/2)-(self.nzWidth/2)+(self.options.borderSize*2))*(-1);
}
else{ //negative margin
}
break;
case 15://done
self.windowOffsetTop = (self.zoomWindow.height()+(self.options.borderSize*2))*(-1); //DONE 12,13,14,15,16
self.windowOffsetLeft =(self.nzWidth-self.zoomWindow.width()-(self.options.borderSize*2)); //DONE - 5,15
break;
case 16: //done
self.windowOffsetTop = (self.zoomWindow.height()+(self.options.borderSize*2))*(-1); //DONE 12,13,14,15,16
self.windowOffsetLeft =(self.nzWidth); //DONE 1, 2, 3, 4, 16
break;
default: //done
self.windowOffsetTop = (self.options.zoomWindowOffety);//DONE - 1
self.windowOffsetLeft =(self.nzWidth); //DONE 1, 2, 3, 4, 16
}
} //end isNAN
else{
//WE CAN POSITION IN A CLASS - ASSUME THAT ANY STRING PASSED IS
self.externalContainer = $('#'+self.options.zoomWindowPosition);
self.externalContainerWidth = self.externalContainer.width();
self.externalContainerHeight = self.externalContainer.height();
self.externalContainerOffset = self.externalContainer.offset();
self.windowOffsetTop = self.externalContainerOffset.top;//DONE - 1
self.windowOffsetLeft =self.externalContainerOffset.left; //DONE 1, 2, 3, 4, 16
}
self.windowOffsetTop = self.windowOffsetTop + self.options.zoomWindowOffety;
self.windowOffsetLeft = self.windowOffsetLeft + self.options.zoomWindowOffetx;
self.zoomWindow.css({ top: self.windowOffsetTop});
self.zoomWindow.css({ left: self.windowOffsetLeft});
if(self.options.zoomType == "inner") {
self.zoomWindow.css({ top: 0});
self.zoomWindow.css({ left: 0});
}
self.windowLeftPos = String(((e.pageX - self.nzOffset.left) * self.widthRatio - self.zoomWindow.width() / 2) * (-1));
self.windowTopPos = String(((e.pageY - self.nzOffset.top) * self.heightRatio - self.zoomWindow.height() / 2) * (-1));
if(self.Etoppos){self.windowTopPos = 0;}
if(self.Eloppos){self.windowLeftPos = 0;}
if(self.Eboppos){self.windowTopPos = (self.largeHeight/self.options.zoomLevel-self.zoomWindow.height())*(-1);}
if(self.Eroppos){self.windowLeftPos = ((self.largeWidth/self.options.zoomLevel-self.zoomWindow.width())*(-1));}
//set the css background position
if(self.options.zoomType == "window" || self.options.zoomType == "inner") {
//overrides for images not zoomable
if(self.widthRatio <= 1){
self.windowLeftPos = 0;
}
if(self.heightRatio <= 1){
self.windowTopPos = 0;
}
// adjust images less than the window height
if(self.largeHeight < self.options.zoomWindowHeight){
self.windowTopPos = 0;
}
if(self.largeWidth < self.options.zoomWindowWidth){
self.windowLeftPos = 0;
}
//set the zoomwindow background position
if (self.options.easing){
//set the pos to 0 if not set
if(!self.xp){self.xp = 0;}
if(!self.yp){self.yp = 0;}
//if loop not already started, then run it
if (!self.loop){
self.loop = setInterval(function(){
//using zeno's paradox
self.xp += (self.windowLeftPos - self.xp) / self.options.easingAmount;
self.yp += (self.windowTopPos - self.yp) / self.options.easingAmount;
self.zoomWindow.css({ backgroundPosition: self.xp + 'px ' + self.yp + 'px' });
}, 16);
}
}
else{
self.zoomWindow.css({ backgroundPosition: self.windowLeftPos + 'px ' + self.windowTopPos + 'px' });
}
}
},
setTintPosition: function(e){
var self = this;
self.nzOffset = self.$elem.offset();
self.tintpos = String(((e.pageX - self.nzOffset.left)-(self.zoomLens.width() / 2)) * (-1));
self.tintposy = String(((e.pageY - self.nzOffset.top) - self.zoomLens.height() / 2) * (-1));
if(self.Etoppos){
self.tintposy = 0;
}
if(self.Eloppos){
self.tintpos=0;
}
if(self.Eboppos){
self.tintposy = (self.nzHeight-self.zoomLens.height()-(self.options.lensBorderSize*2))*(-1);
}
if(self.Eroppos){
self.tintpos = ((self.nzWidth-self.zoomLens.width()-(self.options.lensBorderSize*2))*(-1));
}
if(self.options.tint) {
self.zoomTint.css({opacity:self.options.tintOpacity}).animate().fadeIn("slow");
self.zoomTintImage.css({'left': self.tintpos-self.options.lensBorderSize+'px'});
self.zoomTintImage.css({'top': self.tintposy-self.options.lensBorderSize+'px'});
}
},
swaptheimage: function(smallimage, largeimage){
var self = this;
var newImg = new Image();
self.options.onImageSwap(self.$elem);
newImg.onload = function() {
self.largeWidth = newImg.width;
self.largeHeight = newImg.height;
self.zoomImage = largeimage;
self.zoomWindow.css({ "background-size": self.largeWidth + 'px ' + self.largeHeight + 'px' });
self.swapAction(smallimage, largeimage);
return;
}
newImg.src = largeimage; // this must be done AFTER setting onload
},
swapAction: function(smallimage, largeimage){
var self = this;
var newImg2 = new Image();
newImg2.onload = function() {
//re-calculate values
self.nzHeight = newImg2.height;
self.nzWidth = newImg2.width;
self.options.onImageSwapComplete(self.$elem);
self.doneCallback();
return;
}
newImg2.src = smallimage;
//swaps the main image
//self.$elem.attr("src",smallimage);
//swaps the zoom image
if(self.options.zoomType == "lens") {
self.zoomLens.css({ backgroundImage: "url('" + largeimage + "')" });
}
if(self.options.zoomType == "window") {
self.zoomWindow.css({ backgroundImage: "url('" + largeimage + "')" });
}
if(self.options.zoomType == "inner") {
self.zoomWindow.css({ backgroundImage: "url('" + largeimage + "')" });
}
self.currentImage = largeimage;
self.$elem.attr("src",smallimage);
},
doneCallback: function(){
var self = this;
if(self.options.tint) {
self.zoomTintImage.attr("src",largeimage);
//self.zoomTintImage.attr("width",elem.data("image"));
self.zoomTintImage.attr("height",self.$elem.height());
//self.zoomTintImage.attr('src') = elem.data("image");
self.zoomTintImage.css({ height: self.$elem.height()});
self.zoomTint.css({ height: self.$elem.height()});
}
self.nzOffset = self.$elem.offset();
self.nzWidth = self.$elem.width();
self.nzHeight = self.$elem.height();
// alert("THIS");
//ratio of the large to small image
self.widthRatio = self.largeWidth / self.nzWidth;
self.heightRatio = self.largeHeight / self.nzHeight;
//NEED TO ADD THE LENS SIZE FOR ROUND
// adjust images less than the window height
if(self.options.zoomType == "window") {
if(self.nzHeight < self.options.zoomWindowWidth/self.widthRatio){
lensHeight = self.nzHeight;
}
else{
lensHeight = String((self.options.zoomWindowHeight/self.heightRatio))
}
if(self.largeWidth < self.options.zoomWindowWidth){
lensWidth = self.nzHWidth;
}
else{
lensWidth = (self.options.zoomWindowWidth/self.widthRatio);
}
if(self.zoomLens){
self.zoomLens.css('width', lensWidth);
self.zoomLens.css('height', lensHeight);
}
}
},
getCurrentImage: function(){
var self = this;
return self.zoomImage;
},
getGalleryList: function(){
var self = this;
//loop through the gallery options and set them in list for fancybox