我在我的网站上使用 Marco 的“背景图片滑块”。链接到下面的背景滑块演示/文档。
( http://www.marcofolio.net/webdesign/advanced_jquery_background_image_slideshow.html )
我想要做的是添加一些简单的缩略图，以便将用户转发到他们选择的滑块中的图像。像这样< o o o o o >的东西，正如您可能想象的那样，第二个“o”将您带到第二个图像，依此类推。
我正在尝试寻找一些变量或可以用来控制当前幻灯片但没有任何运气的东西。
这是插件代码的副本
/*
* Author: Marco Kuiper (http://www.marcofolio.net/)
*/
// Speed of the automatic slideshow
var slideshowSpeed = 6000;
// Variable to store the images we need to set as background
// which also includes some text and url's.
var photos = [ {
"title" : "",
"image" : "image_1.jpg",
"url" : "",
"firstline" : "",
"secondline" : ""
}, {
"title" : "",
"image" : "image_2.jpg",
"url" : "",
"firstline" : "",
"secondline" : ""
}, {
"title" : "",
"image" : "image_3.jpg",
"url" : "",
"firstline" : "",
"secondline" : ""
}, {
"title" : "",
"image" : "image_4.jpg",
"url" : "",
"firstline" : "",
"secondline" : ""
}, {
"title" : "",
"image" : "image_5.jpg",
"url" : "",
"firstline" : "",
"secondline" : ""
}, {
"title" : "",
"image" : "image_6.jpg",
"url" : "",
"firstline" : "",
"secondline" : ""
}, {
"title" : "",
"image" : "image_7.jpg",
"url" : "",
"firstline" : "",
"secondline" : ""
}
];
$(document).ready(function() {
// Backwards navigation
$("#back").click(function() {
stopAnimation();
navigate("back");
});
// Forward navigation
$("#next").click(function() {
stopAnimation();
navigate("next");
});
var interval;
$("#control").toggle(function(){
stopAnimation();
}, function() {
// Change the background image to "pause"
$(this).css({ "background-image" : "url(img/btn_pause.png)" });
// Show the next image
navigate("next");
// Start playing the animation
interval = setInterval(function() {
navigate("next");
}, slideshowSpeed);
});
var activeContainer = 1;
var currentImg = 0;
var animating = false;
var navigate = function(direction) {
// Check if no animation is running. If it is, prevent the action
if(animating) {
return;
}
// Check which current image we need to show
if(direction == "next") {
currentImg++;
if(currentImg == photos.length + 1) {
currentImg = 1;
}
} else {
currentImg--;
if(currentImg == 0) {
currentImg = photos.length;
}
}
// Check which container we need to use
var currentContainer = activeContainer;
if(activeContainer == 1) {
activeContainer = 2;
} else {
activeContainer = 1;
}
showImage(photos[currentImg - 1], currentContainer, activeContainer);
};
var currentZindex = -1;
var showImage = function(photoObject, currentContainer, activeContainer) {
animating = true;
// Make sure the new container is always on the background
currentZindex--;
// Set the background image of the new active container
$("#headerimg" + activeContainer).css({
"background-image" : "url(img/" + photoObject.image + ")",
"display" : "block",
"z-index" : currentZindex
});
// Hide the header text
$("#headertxt").css({"display" : "none"});
// Set the new header text
$("#firstline").html(photoObject.firstline);
$("#secondline")
.attr("href", photoObject.url)
.html(photoObject.secondline);
$("#pictureduri")
.attr("href", photoObject.url)
.html(photoObject.title);
// Fade out the current container
// and display the header text when animation is complete
$("#headerimg" + currentContainer).fadeOut(function() {
setTimeout(function() {
$("#headertxt").css({"display" : "block"});
animating = false;
}, 500);
});
};
var stopAnimation = function() {
// Change the background image to "play"
$("#control").css({ "background-image" : "url(img/btn_play.png)" });
// Clear the interval
clearInterval(interval);
};
// We should statically set the first image
navigate("next");
// Start playing the animation
interval = setInterval(function() {
navigate("next");
}, slideshowSpeed);
});
以及我的 script.js 文件中的触发代码副本
//index page image preloading code
var imgArr = new Array( // relative paths of images
'img/image_1.jpg',
'img/image_2.jpg',
'img/image_3.jpg',
'img/image_4.jpg',
'img/image_5.jpg',
'img/image_6.jpg',
'img/image_7.jpg'
);
var preloadArr = new Array();
var i;
/* preload images */
for(i=0; i < imgArr.length; i++){
preloadArr[i] = new Image();
preloadArr[i].src = imgArr[i];
}