问题
I build this image gallery using jquerytools, I'm using scrollable div on thumbs and overlay on the main image... Everything works like charm..
EDIT: Before I make this a bounty...I have to explain that I need something clean and simple like this, because the images come from php (encrypted) , and I can't modify this, just the "view" as I need to achieve this with something like classes and ids. This is why I try this but...
The problem is I need to insert a Next and Prev Buttons when you are viewing the overlay... so you can go trough the images, once the overlay has been loaded..
I have made this fiddle for you my teachers full of wisdom can see what I am saying. http://jsfiddle.net/s6TGs/5/
I have really tried. but api.next() it's working for the scrolling on the thumbs , so I don't know how can I tell this script.. hey if next is clicked, yo pls insert next url on thubs, if previous btn is clicked, pls go to prev url on thumbs.. But I can't
Also and no less important a Counter like 1/8 have to be displayed =S... how in the name of JavaScript you do this..
Here is My code
$(function() {
$(".scrollable").scrollable();
$(".items img").click(function() {
// see if same thumb is being clicked
if ($(this).hasClass("active")) { return; }
// calclulate large image's URL based on the thumbnail URL (flickr specific)
var url = $(this).attr("src").replace("_t", "");
// get handle to element that wraps the image and make it semi-transparent
var wrap = $("#image_wrap").fadeTo("medium", 0.5);
var wrap2 = $("#mies1");
// the large image from www.flickr.com
var img = new Image();
// call this function after it's loaded
img.onload = function() {
// make wrapper fully visible
wrap.fadeTo("fast", 1);
// change the image
wrap.find("img").attr("src", url);
wrap2.find("img").attr("src", url);
};
// begin loading the image from www.flickr.com
img.src = url;
// activate item
$(".items img").removeClass("active");
$(this).addClass("active");
// when page loads simulate a "click" on the first image
}).filter(":first").click();
});
// This makes the image Overlay with a div and html
$(document).ready(function() {
$("img[rel]").overlay({
// some mask tweaks suitable for modal dialogs
mask: {
color: '#ebecff',
loadSpeed: 200,
opacity: 0.9
},
closeOnClick: true
});
});
I know here is part of my answer I just can make it work :(
http://jquerytools.org/demos/combine/portfolio/index.html
EDIT: Thanks to the first answer by QuakeDK I almost achieve the goal.. But the counter is not ok, also when you get to the 4 image (number 5 on counter) you cant go to the 5th thumb .. This is the CODE with that answer integrated
http://jsfiddle.net/xHL35/5/
And here is the CODE for PREV & NEXT BUTTON
//NExt BTN
$(".nextImg").click(function(){
// Count all images
var count = $(".items img").length;
var next = $(".items").find(".active").next("img");
if(next.is(":last")){
next = $(".items").find(".active").parent().next("div").find("img:first");
if(next.index() == -1){
// We have reached the end - start over.
next = $(".items img:first");
scrollapi.begin(200);
} else {
scrollapi.next(200);
}
}
// Get the current image number
var current = (next.index("img"));
var nextUrl = next.attr("src").replace("_t", "");
// get handle to element that wraps the image and make it semi-transparent
var wrap = $("#image_wrap").fadeTo("medium", 0.5);
var wrap2 = $("#mies1");
// the large image from www.flickr.com
var img = new Image();
// call this function after it's loaded
img.onload = function() {
// make wrapper fully visible
wrap.fadeTo("fast", 1);
// change the image
wrap.find("img").attr("src", nextUrl);
wrap2.find("img").attr("src", nextUrl);
};
// begin loading the image from www.flickr.com
img.src = nextUrl;
$("#imageCounter").html("Image: "+current+" of "+count);
// activate item
$(".items img").removeClass("active");
next.addClass("active");
});
//PREV BTN
$(".prevImg").click(function(){
// Count all images
var count = $(".items img").length;
var prev = $(".items").find(".active").prev("img");
if(prev.is(":first")){
prev = $(".items").find(".active").parent().prev("div").find("img:first");
if(prev.index() == -1){
// We have reached the end - start over.
prev = $(".items img:first");
scrollapi.begin(200);
} else {
scrollapi.prev(200);
}
}
// Get the current image number
var current = (prev.index("img"));
var prevUrl = prev.attr("src").replace("_t", "");
// get handle to element that wraps the image and make it semi-transparent
var wrap = $("#image_wrap").fadeTo("medium", 0.5);
var wrap2 = $("#mies1");
// the large image from www.flickr.com
var img = new Image();
// call this function after it's loaded
img.onload = function() {
// make wrapper fully visible
wrap.fadeTo("fast", 1);
// change the image
wrap.find("img").attr("src", prevUrl);
wrap2.find("img").attr("src", prevUrl);
};
// begin loading the image from www.flickr.com
img.src = prevUrl;
$("#imageCounter").html("Image: "+current+" of "+count);
// activate item
$(".items img").removeClass("active");
prev.addClass("active");
});
There must be a reward option here, if somebody help me I give you 20box! jajaja I'm desperate. Because now I also need to display title for each image, and I think it's the same process of URL replace, but next & prev is just something I can't manage.. Post the full solution and your email on paypal, I will pay 20!
回答1:
Okay, never tried jQueryTOOLS, so thought it would be fun to play with.
first of all, here's the JSFiddle I just created: http://jsfiddle.net/xHL35/1/
Now, the API calls need a variable to hold it
$(".scrollable").scrollable();
var scrollapi = $(".scrollable").data("scrollable");
Now scrollapi, can call the functions like this:
scrollapi.next(200);
I've copied your own code for choosing image and just rewritten it to fit the NEXT image. I haven't created the PREV function, but should not be that hard to reverse the NEXT function.
$(".nextImg").click(function(){
// Count all images
var count = $(".items img").length;
// Finding the next image
var next = $(".items").find(".active").next("img");
// Is the next image, the last image in the wrapper?
if(next.is(":last")){
// If it is, go to next DIV and get the first image
next = $(".items").find(".active").parent().next("div").find("img:first");
// If this dosn't exists, we've reached the end
if(next.index() == -1){
// We have reached the end - start over.
next = $(".items img:first");
scrollapi.begin(200);
} else {
// Not at the end, show next div in thumbs
scrollapi.next(200);
}
}
// Get the current image number
var current = (next.index("img"));
var nextUrl = next.attr("src").replace("_t", "");
// get handle to element that wraps the image and make it semi-transparent
var wrap = $("#image_wrap").fadeTo("medium", 0.5);
var wrap2 = $("#mies1");
// the large image from www.flickr.com
var img = new Image();
// call this function after it's loaded
img.onload = function() {
// make wrapper fully visible
wrap.fadeTo("fast", 1);
// change the image
wrap.find("img").attr("src", nextUrl);
wrap2.find("img").attr("src", nextUrl);
};
// begin loading the image from www.flickr.com
img.src = nextUrl;
// Show the counter
$("#imageCounter").html("Image: "+current+" of "+count);
// activate item
$(".items img").removeClass("active");
next.addClass("active");
});
Hoping you can use this to develop the rest of the gallery.
来源：https://stackoverflow.com/questions/16825046/prev-next-button-with-counter-for-overlay-using-jquery