基于jquery的仿百度的鼠标移入图片抖动效果
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1。查看源文件，在查看后很纳闷的发现，此页并没有包含那些奖品信息。这样就断定代码在另一个页面中。于是想当然的以为是用的框架连接的地址。结果没查到，却看到了一个这样的信息:
<div id ="task-intro-box"><!--活动说明--></div>
<div id ="task-awards"><!--活动奖励--></div>
<div id ="task-rule"><!--活动规则--></div>
可以看到此页面是用task-awards为ID的div当容器的,所以,单击页面上的JS文件,查找task-awards
2。终于皇天不负有心人，在base.js中查到了这段代码,可以看到被映射到了awards.html地址,加之下面的widget/ 路径.所以此页面的完整路径就被找出来了
function getWidgets(){
var modules = {
"task-intro-box":"intro.html"
,"task-awards":"awards.html"
,"task-gongao":"gongao.html"
,"task-rule":"rule.html"
,"faq":"faq.html"
,"task-gongao":"gongao.html"
};
$.each(modules,function(key,val){
if(G(key) ){
$.get("widget/"+val ,function(data){
$(data).appendTo($("#"+key));
});
}
});
}
3。查看awards.html 页面的源文件.可以看到这段图片效果的调用
$("ul.awards img").each(function(k,img){
new JumpObj(img,10);
$(img).hover(function(){this.parentNode.parentNode.className="hover"});
$(img.parentNode).click(function(){return false;});//阻止被点击
})
$("ul.awards li").hover(function(){this.className="hover"}).mouseout(function(){this.className=""});
4.然后我们只要查找JumpObj这个js方法的代码就可以啦.同样在base.js中查到了此方法:
function JumpObj(elem, range, startFunc, endFunc) {
//图片鼠标移上去的动画效果，感谢aoao的支持
var curMax = range = range || 6;
startFunc = startFunc || function(){};
endFunc = endFunc || function(){};
var drct = 0;
var step = 1;
init();
function init() { elem.style.position = 'relative';active() }
function active() { elem.onmouseover = function(e) {if(!drct)jump()} }
function deactive() { elem.onmouseover = null }
function jump() {
var t = parseInt(elem.style.top);
if (!drct) motionStart();
else {
var nextTop = t - step * drct;
if (nextTop >= -curMax && nextTop <= 0) elem.style.top = nextTop + 'px';
else if(nextTop < -curMax) drct = -1;
else {
var nextMax = curMax / 2;
if (nextMax < 1) {motionOver();return;}
curMax = nextMax;
drct = 1;
}
}
setTimeout(function(){jump()}, 200 / (curMax+3) + drct * 3);
}
function motionStart() {
startFunc.apply(this);
elem.style.top='0';
drct = 1;
}
function motionOver() {
endFunc.apply(this);
curMax = range;
drct = 0;
elem.style.top = '0';
}
this.jump = jump;
this.active = active;
this.deactive = deactive;
}
5。这样就大工告成啦. 以后再使用的时候,按下列步骤就可以了
<1>导入jquery 包,和base.js文件(存放JumpObj方法)
<2>在页面加载的时候注册鼠标移入事件,调用JumpObj方法
源码打包下载
复制代码 代码如下:
<div id ="task-intro-box"><!--活动说明--></div>
<div id ="task-awards"><!--活动奖励--></div>
<div id ="task-rule"><!--活动规则--></div>
可以看到此页面是用task-awards为ID的div当容器的,所以,单击页面上的JS文件,查找task-awards
2。终于皇天不负有心人，在base.js中查到了这段代码,可以看到被映射到了awards.html地址,加之下面的widget/ 路径.所以此页面的完整路径就被找出来了
复制代码 代码如下:
function getWidgets(){
var modules = {
"task-intro-box":"intro.html"
,"task-awards":"awards.html"
,"task-gongao":"gongao.html"
,"task-rule":"rule.html"
,"faq":"faq.html"
,"task-gongao":"gongao.html"
};
$.each(modules,function(key,val){
if(G(key) ){
$.get("widget/"+val ,function(data){
$(data).appendTo($("#"+key));
});
}
});
}
3。查看awards.html 页面的源文件.可以看到这段图片效果的调用
复制代码 代码如下:
$("ul.awards img").each(function(k,img){
new JumpObj(img,10);
$(img).hover(function(){this.parentNode.parentNode.className="hover"});
$(img.parentNode).click(function(){return false;});//阻止被点击
})
$("ul.awards li").hover(function(){this.className="hover"}).mouseout(function(){this.className=""});
4.然后我们只要查找JumpObj这个js方法的代码就可以啦.同样在base.js中查到了此方法:
复制代码 代码如下:
function JumpObj(elem, range, startFunc, endFunc) {
//图片鼠标移上去的动画效果，感谢aoao的支持
var curMax = range = range || 6;
startFunc = startFunc || function(){};
endFunc = endFunc || function(){};
var drct = 0;
var step = 1;
init();
function init() { elem.style.position = 'relative';active() }
function active() { elem.onmouseover = function(e) {if(!drct)jump()} }
function deactive() { elem.onmouseover = null }
function jump() {
var t = parseInt(elem.style.top);
if (!drct) motionStart();
else {
var nextTop = t - step * drct;
if (nextTop >= -curMax && nextTop <= 0) elem.style.top = nextTop + 'px';
else if(nextTop < -curMax) drct = -1;
else {
var nextMax = curMax / 2;
if (nextMax < 1) {motionOver();return;}
curMax = nextMax;
drct = 1;
}
}
setTimeout(function(){jump()}, 200 / (curMax+3) + drct * 3);
}
function motionStart() {
startFunc.apply(this);
elem.style.top='0';
drct = 1;
}
function motionOver() {
endFunc.apply(this);
curMax = range;
drct = 0;
elem.style.top = '0';
}
this.jump = jump;
this.active = active;
this.deactive = deactive;
}
5。这样就大工告成啦. 以后再使用的时候,按下列步骤就可以了
<1>导入jquery 包,和base.js文件(存放JumpObj方法)
<2>在页面加载的时候注册鼠标移入事件,调用JumpObj方法
源码打包下载
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