A picture hover plug-in based on jquery_jquery
Let’s take a look at how to use it first.
Demo addresshttp://demo.jb51.net/js/jCutter_jquery/demo.htm
The HTML file reads:

This is the content of the page after clicking it
To call, you need to write like this:
$(document).ready(function(){
options={
'speedIn':600, //Animation speed when the picture enters
'speedOut':400, //Animation when the picture exits Speed
'easeIn':'easeOutBounce', //Animation effect when the picture enters. This effect requires the easing library
'easeOut':'' //Animation effect when the picture exits
}
$('.jcutter').jCutter(options);
})
Of course you have to quote this plug-in. Let's explain how to write this plug-in.
1. How to write a jQuery plug-in
To write a jQuery plug-in, you first need some necessary structures, as shown below:
(function($){
$.fn.jCutter = function(o){
o = $.extend({
speedIn: 300,
speedOut: 300,
easeIn: '',
easeOut: ''
}, o || {});
};
})(jQuery );
This structure is slightly different from our final result, but in general the structure of the jQuery plug-in is like this.
First write it in the form of a closure without polluting the namespace, and then write it according to the interface provided by jQuery. The jCutter here can be changed to the name of your own plug-in. $.extend is a very interesting function. It combines the first and second parameters. For values that appear in both parameters, the latter replaces the former.
2. Start writing
In this example, because we need to use a selector, we make some modifications and change the structure to the following.
(function($){
$.jCutter = function(node, o){
o = $.extend({
speedIn: 300,
speedOut: 300,
easeIn: '',
easeOut: ''
}, o || {});
var that = this;
that.init = function(){
};
that.generate = function(){
};
that.cutter = function(){
};
that.init();
};
$.fn.jCutter = function(o){
return this.each (function(i){
$.jCutter(this,o);
});
};
})(jQuery);
$.jCutter The meaning is to add a class to jQuery so that we can operate more conveniently. Through the above structure, we can clearly see the logic of the program. init() is used to perform some initialization tasks, then generate() is used to generate the required structure, and finally cutter() is used to complete animation and event effects.
3. Initialization procedure
The things that need to be initialized are mainly some parameters, then find the picture that needs to be modified, and finally render it. They are all relatively simple operations.
that.init = function(){
that .node = $(node);
that.img = that.node.find('img');
that.speedIn = o.speedIn;
that.speedOut = o.speedOut;
that.easeIn = o.easeIn;
that.easeOut = o.easeOut;
that.generate();
that.cutter();
};
4. Generate the required structure
The principle of this effect is: we copy the picture into four layers, then position the four layers relatively, and then put the picture together, so that the animation effect can be achieved .
that.generate = function(){
var w = that.node.width() / 2;
var h = that.node.height() / 2;
that.imga = [];
for (var i = 0; i < 4; i ) {
that.imga[i] = document.createElement('div');
that.imga[i] = $(that.imga[i]);
that.imga[i].css({
'position': 'absolute',
'z-index': '2',
'width': w,
'height': h,
'background': 'url("' that.img.attr("src") '") no-repeat'
});
$(that.node).append(that.imga[i]);
}
that.imga[0].css({
'left': '0px',
'top': '0px'
});
that.imga[1].css({
'right': '0px',
'top': '0px',
'background-position': '-' w 'px' ' 0px'
});
that.imga[2].css({
'left': '0px',
'bottom': '0px',
'background-position': '0px' ' -' h 'px'
});
that.imga[3].css({
'right': '0px',
'bottom': '0px',
'background-position': '-' w 'px ' '-' h 'px'
});
that.img.remove();
};
这里的代码也比较简单,首先得到外面层的宽度和高度,然后计算,再生成四个层,给四个层写入相应的位置代码,需要注意的是,外面层的position属性要设置为relative,要么里面的层就无法准确定位了。这里其实可以直接写入相应的html代码,但是为了表现清晰,我们采用了比较明朗的写法,先生成一个div,然后赋给他一些css属性。
五、添加动画效果,注册事件处理程序
完成了结构的任务,下一步就是给他添加动画效果了,我们只需要将这四个图层在鼠标经过的时候移出外面的层,然鼠标离开的时候再复位就可以了,写起来也是非常的简单,看代码:
that.cutter = function(){
var w = that.node.width() / 2;
var h = that.node.height() / 2;
that.node.hover(function(){
that.imga[0].stop().animate({
'left': '-' w,
'top': '-' h
}, that.speedOut, that.easeOut);
that.imga[1].stop().animate({
'right': '-' w,
'top': '-' h
}, that.speedOut, that.easeOut);
that.imga[2].stop().animate({
'left': '-' w,
'bottom': '-' h
}, that.speedOut, that.easeOut);
that.imga[3].stop().animate({
'right': '-' w,
'bottom': '-' h
}, that.speedOut, that.easeOut);
}, function(){
that.imga[0].stop().animate({
'left': 0,
'top': 0
}, that.speedIn, that.easeIn);
that.imga[1].stop().animate({
'right': 0,
'top': 0
}, that.speedIn, that.easeIn);
that.imga[2].stop().animate({
'left': 0,
'bottom': 0
}, that.speedIn, that.easeIn);
that.imga[3].stop().animate({
'right': 0,
'bottom': 0
}, that.speedIn, that.easeIn);
})
};
.stop()函数的作用就是如果在事件再次出发的时候,上一次的动画还在进行中的话,就终止动画,这样效果更加自然一些。that.easeIn和that.easeOut参数是用来设置动画的模式的,默认的jQuery库只有两种简单的线性库,可以下载jQuery.easing库来添加更多绚丽的效果。
这样就完成了这个插件的编写,完整的代码如下:
(function($){
$.jCutter = function(node, o){
o = $.extend({
speedIn: 300,
speedOut: 300,
easeIn: '',
easeOut: ''
}, o || {});
var that = this;
that.init = function(){
that.node = $(node);
that.img = that.node.find('img');
that.speedIn = o.speedIn;
that.speedOut = o.speedOut;
that.easeIn = o.easeIn;
that.easeOut = o.easeOut;
that.generate();
that.cutter();
};
that.generate = function(){
var w = that.node.width() / 2;
var h = that.node.height() / 2;
that.imga = [];
for (var i = 0; i < 4; i ) {
that.imga[i] = document.createElement('div');
that.imga[i] = $(that.imga[i]);
that.imga[i].css({
'position': 'absolute',
'z-index': '2',
'width': w,
'height': h,
'background': 'url("' that.img.attr("src") '") no-repeat'
});
$(that.node).append(that.imga[i]);
}
that.imga[0].css({
'left': '0px',
'top': '0px'
});
that.imga[1].css({
'right': '0px',
'top': '0px',
'background-position': '-' w 'px' ' 0px'
});
that.imga[2].css({
'left': '0px',
'bottom': '0px',
'background-position': '0px' ' -' h 'px'
});
that.imga[3].css({
'right': '0px',
'bottom': '0px',
'background-position': '-' w 'px ' '-' h 'px'
});
that.img.remove();
};
that.cutter = function(){
var w = that.node.width() / 2;
var h = that.node.height() / 2;
that.node.hover(function(){
that.imga[0].stop().animate({
'left': '-' w,
'top': '-' h
}, that.speedOut, that.easeOut);
that.imga[1].stop().animate({
'right': '-' w,
'top': '-' h
}, that.speedOut, that.easeOut);
that.imga[2].stop().animate({
'left': '-' w,
'bottom': '-' h
}, that.speedOut, that.easeOut);
that.imga[3].stop().animate({
'right': '-' w,
'bottom': '-' h
}, that.speedOut, that.easeOut);
}, function(){
that.imga[0].stop().animate({
'left': 0,
'top': 0
}, that.speedIn, that.easeIn);
that.imga[1].stop().animate({
'right': 0,
'top': 0
}, that.speedIn, that.easeIn);
that.imga[2].stop().animate({
'left': 0,
'bottom': 0
}, that.speedIn, that.easeIn);
that.imga[3].stop().animate({
'right': 0,
'bottom': 0
}, that.speedIn, that.easeIn);
})
};
that.init();
};
$.fn.jCutter = function(o){
return this.each(function(i){
$.jCutter(this,o);
});
};
})(jQuery);
很简单有趣的效果,逻辑很清楚,代码也简单,是练手的好东东。
打包下载地址 http://www.jb51.net/jiaoben/26031.html

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

With the continuous development of social media, Xiaohongshu has become a platform for more and more young people to share their lives and discover beautiful things. Many users are troubled by auto-save issues when posting images. So, how to solve this problem? 1. How to solve the problem of automatically saving pictures when publishing on Xiaohongshu? 1. Clear the cache First, we can try to clear the cache data of Xiaohongshu. The steps are as follows: (1) Open Xiaohongshu and click the "My" button in the lower right corner; (2) On the personal center page, find "Settings" and click it; (3) Scroll down and find the "Clear Cache" option. Click OK. After clearing the cache, re-enter Xiaohongshu and try to post pictures to see if the automatic saving problem is solved. 2. Update the Xiaohongshu version to ensure that your Xiaohongshu

With the popularity of Douyin short videos, user interactions in the comment area have become more colorful. Some users wish to share images in comments to better express their opinions or emotions. So, how to post pictures in TikTok comments? This article will answer this question in detail and provide you with some related tips and precautions. 1. How to post pictures in Douyin comments? 1. Open Douyin: First, you need to open Douyin APP and log in to your account. 2. Find the comment area: When browsing or posting a short video, find the place where you want to comment and click the "Comment" button. 3. Enter your comment content: Enter your comment content in the comment area. 4. Choose to send a picture: In the interface for entering comment content, you will see a "picture" button or a "+" button, click

Apple's recent iPhones capture memories with crisp detail, saturation and brightness. But sometimes, you may encounter some issues that may cause the image to look less clear. While autofocus on iPhone cameras has come a long way, allowing you to take photos quickly, the camera can mistakenly focus on the wrong subject in certain situations, making the photo blurry in unwanted areas. If your photos on your iPhone look out of focus or lack sharpness overall, the following post should help you make them sharper. How to Make Pictures Clearer on iPhone [6 Methods] You can try using the native Photos app to clean up your photos. If you want more features and options

In PowerPoint, it is a common technique to display pictures one by one, which can be achieved by setting animation effects. This guide details the steps to implement this technique, including basic setup, image insertion, adding animation, and adjusting animation order and timing. Additionally, advanced settings and adjustments are provided, such as using triggers, adjusting animation speed and order, and previewing animation effects. By following these steps and tips, users can easily set up pictures to appear one after another in PowerPoint, thereby enhancing the visual impact of the presentation and grabbing the attention of the audience.

Are you also using Foxit PDF Reader software? So do you know how Foxit PDF Reader converts pdf documents into jpg images? The following article brings you how Foxit PDF Reader converts pdf documents into jpg images. For those who are interested in the method of converting jpg images, please come and take a look below. First start Foxit PDF Reader, then find "Features" on the top toolbar, and then select the "PDF to Others" function. Next, open a web page called "Foxit PDF Online Conversion". Click the "Login" button on the upper right side of the page to log in, and then turn on the "PDF to Image" function. Then click the upload button and add the pdf file you want to convert into an image. After adding it, click "Start Conversion"

When using WPS office software, we found that not only one form is used, tables and pictures can be added to the text, pictures can also be added to the table, etc. These are all used together to make the content of the entire document look richer. , if you need to insert two pictures into the document and they need to be arranged side by side. Our next course can solve this problem: how to place two pictures side by side in a wps document. 1. First, you need to open the WPS software and find the picture you want to adjust. Left-click the picture and a menu bar will pop up, select "Page Layout". 2. Select "Tight wrapping" in text wrapping. 3. After all the pictures you need are confirmed to be set to "Tight text wrapping", you can drag the pictures to the appropriate position and click on the first picture.

Some netizens found that when they opened the browser web page, the pictures on the web page could not be loaded for a long time. What happened? I checked that the network is normal, so where is the problem? The editor below will introduce to you six solutions to the problem that web page images cannot be loaded. Web page images cannot be loaded: 1. Internet speed problem The web page cannot display images. It may be because the computer's Internet speed is relatively slow and there are more softwares opened on the computer. And the images we access are relatively large, which may be due to loading timeout. As a result, the picture cannot be displayed. You can turn off the software that consumes more network speed. You can go to the task manager to check. 2. Too many visitors. If the webpage cannot display pictures, it may be because the webpages we visited were visited at the same time.

When we use Word office software for document processing, we often need to insert some pictures and other materials into the document. However, in order to achieve beautiful layout, we also need to perform some special layout on the pictures, among which rotation processing is the most basic. Typesetting processing, however, for some newcomers to the workplace who have just come into contact with Word office software, they may not be able to process pictures in Word documents. Below, we will share how to rotate pictures in Word. We hope it will be helpful and inspiring to you. 1. First, we open a Word document, and then click the Insert-Picture button on the menu bar to insert a random picture on the computer to facilitate our operation and demonstration. 2. If we want to rotate the image, then we need to
