Home > Developer > CSS

Principle and code of jQuery + CSS semi-open folding effect (self-writing)

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

A project wants to use jQuery to create a DIV element that can be semi-folded, so it writes it by itself because accordion does not provide relevant methods in jQueryUI. In the past, when using jQueryUI, we found that all the accordion that can be used were folded up, and there was no way to set the minimum collapse height.
The code quality is very low. I hope laruence can give some advice.

Is the effect display, which can be expanded and reduced by jQuery functions.
Copy codeThe Code is as follows: // author: hlhr
// Require: Jquery1.4 and above
Function animate_toggle_height (maxh, minh, maxo, mino, element, speed) {// This is vertical. parameter description: maximum height, minimum height, maximum transparency, minimum transparency, element, animation speed
If (element.css ("height") = minh. toString (). concat ("px") {// expand if it is the minimum height
Element. animate ({
Height: maxh,
Opacity: maxo
}, {Queue: false}, speed );
Return "Fold"
}
If (element.css ("height") = maxh. toString (). concat ("px") {// fold if it is the maximum height
Certificate (this).html ("");
Element. animate ({
Height: minh,
Opacity: mino
}, {Queue: false}, speed );
Return "Read more ";
}
}
Function animate_toggle_width (maxw, minw, maxo, mino, element, speed ){
If (element.css ("width") = minw. toString (). concat ("px ")){
Element. animate ({
Width: maxw,
Opacity: maxo
}, {Queue: false}, speed );
Return "Fold"
}
If (element.css ("width") = maxw. toString (). concat ("px ")){
Element. animate ({
Width: minw,
Opacity: mino
}, {Queue: false}, speed );
Return "Read more ";
}
}

Copy codeThe Code is as follows: <Head>
<Script src = "jquery-1.9.1.min.js"> </script> <! -- Jquery library required -->
<Script src = "jqslider. js"> </script> <! -- Link to the above js library -->
<Style>
Body {margin: 0 auto; text-align: center ;}
. Slide {font-size: 20px; overflow: hidden; width: 500px ;}
# Content {margin: 0 auto; width: 500px ;}
. Viewbutton {position: relative; text-align: right ;}
</Style>
</Head>
<Body>
<Fieldset id = "content">
<Div class = "slide">
<A class = "viewbutton" href = "#">
Read more
</A>
<P> slide! </P>
<P> slide! </P>
<P> slide! </P>
<P> slide! </P>
<P> slide! </P>
</Div>
</Fieldset>
<P/>
<Fieldset id = "content">
<Div class = "slide">
<A class = "viewbutton" href = "#">
Read more
</A>
<P> slide! </P>
<P> slide! </P>
<P> slide! </P>
<P> slide! </P>
<P> slide! </P>
</Div>
</Fieldset>

<Script type = "text/javascript">
Var max_h = 300;
Var min_h = 100;
// Var max_w = 500;
// Var min_w = 10;
Var max_o = 1;
Var min_o = 0.3;
$ (". Slide" mirror.css ({opacity: min_o}); // sets the initial transparency.
$ (". Slide" ).css ({height: min_h}); // you can specify the initial height.
$ (". Viewbutton"). click (function () {// only vertical expansion is called here. You can also call horizontal expansion
Dimensions (this).html (animate_toggle_height (max_h, min_h, max_o, min_o, $ (this). parent (), 500); // automatically identifies it as the upper-level animation of viewbutton
});
</Script>
</Body>
</Html>

You can modify the viewbutton hierarchy, but pay attention to the animation target. The viewbutton I wrote will be animated to the div at the upper level, so there is no need to write the selector too complicated.

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More