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A jquery-based effect style plug-in for image and video Buffering

Source: Internet
Author: User
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Copy codeThe Code is as follows:
(Function ($ ){
$. Fn. scrollWait = function (options ){
Var ops = $. extend ({}, $. fn. scrollWait. defaults, options );
Var opts = $. meta? $. Extend ({}, ops, $ (this). data (): ops;
/**
* Display position
*/
Var win = $ (window );
Var winheight = win. height ();
Var winwidth = win. width ();
Var dsize = opts. size;
Var top = opts. top;
Var left = opts. left;
Var dtop =! Top & top! = "" & Typeof top! = "Undefined" & top! = 0
? (Winheight-dsize)/2
: Top;
Var dleft =! Left & left! = "" & Typeof left! = "Undefined"
& Left! = 0? (Winwidth-dsize)/2: left;
// Number of Origins
Var num = opts. num;
// Origin diameter
Var R = dsize/num * opts. areaWeight;
// Radius
Var r = 1/2 * R;
// Outer circle diameter
Var outerR = 1/2 * dsize;
// Inner circle diameter
Var innerR = outerR-R;
// Traverse and add the origin object
For (var I = 0; I <num; I ++ ){
$ ('Body'). append ($ ("<div class = \" innerCircle \ "id = \" innerCircle"
+ I + "\"> </div> "));
}
// Actual coordinates 0, 0
Var I = 0;
Var innerArray = new Array (num );
/**
* Calculate the center coordinate of the point on the inner circle
*/
For (var j = 0; j <innerArray. length; j ++ ){
Var x, y;
Var ang = I * 360/num;
If (0 <= ang & ang <= 90 ){
X = outerR * Math. sin (ang/180 * Math. PI) + outerR;
Y = outerR-outerR * Math. cos (ang/180 * Math. PI );
}
If (90 <ang & ang <= 180 ){
X = outerR * Math. cos (ang-90)/180 * Math. PI) + outerR;
Y = outerR * Math. sin (ang-90)/180 * Math. PI) + outerR;
}
If (180 <ang & ang <= 270 ){
X = outerR-outerR * Math. sin (ang-180)/180 * Math. PI );
Y = outerR * Math. cos (ang-180)/180 * Math. PI) + outerR;
}
If (270 <ang & ang <= 360 ){
X = outerR-outerR * Math. cos (ang-270)/180 * Math. PI );
Y = outerR-outerR * Math. sin (ang-270)/180 * Math. PI );
}
InnerArray [j] = new Array (dtop + y-r, dleft + x-r );
I ++;
}
/**
* Circle
*/
$ (". InnerCircle"). each (function (){
Certificate (this).css ({
'Width': R + "px ",
'Height': R + "px ",
'Border-top-left-radius ': r + "px ",
'Border-top-right-radius ': r + "px ",
'Border-bottom-left-radius ': r + "px ",
'Border-bottom-right-radius ': r + "px"
});
});
For (var I = 0; I <num; I ++ ){
$ ("# InnerCircle" + i2.16.css ({
'Top': innerArray [I] [0] + "px ",
'Left': innerArray [I] [1] + "px"
});
}
// Find the position of the currently paused circle
Var val = $ ("# current"). val ();
If (val = undefined | val = ""){
$ ("Body"). append ($ ("<input type = \" hidden \ "id = \" current \ "> "));
K = 0;
} Else {
K = val;
}
Var o = new Object ();
Var timer;
// Start Rotation
O. start = function (){
Var first;
Var g = $ ("# grade"). val ();
If (g = undefined | g = ""){
$ ("Body"). append ($ ("<input type = \" hidden \ "id = \" grade \ "> "));
First = 1;
} Else {
First = g;
}
Timer = setInterval (function (){
If (first % 2 = 1 ){
$ ("# InnerCircle" + k). removeClass ("innerCircle ")
. AddClass ("innerCircle-change ");
}
If (first % 2 = 0 ){
$ ("# InnerCircle" + k). removeClass ("innerCircle-change ")
. AddClass ("innerCircle ");
}
If (k = (num-1 )){
K = 0;
Console. log (first );
First ++;
$ ("# Grade"). val (first );
} Else {
K ++;
}
// Overwrite Value
$ ("# Current"). val (k );
}, Opts. speed );
Return this;
}
// Pause
O. stop = function (){
ClearInterval (timer );
Return this;
}
// End
O. end = function (){
ClearInterval (timer );
// Remove all elements
$ (". InnerCircle,. innerCircle-change, # current, # grade"). remove ();
}
Return o;
}
$. Fn. scrollWait. defaults = {
Size: 80,
Top: null,
Left: null,
// Quantity
Num: 8,
Velocity: 200,
// Percentage of dots in the whole area
AreaWeight: 5/4
};
}) (JQuery );

Call method:
Copy codeThe Code is as follows:
<! Doctype html public "-// W3C // dtd html 4.01 Transitional // EN">
<Html>
<Head>
<Title> MyHtml.html </title>
<Meta http-equiv = "keywords" content = "keyword1, keyword2, keyword3">
<Meta http-equiv = "description" content = "this is my page">
<Meta http-equiv = "content-type" content = "text/html; charset = UTF-8">
<Link rel = "stylesheet" type = "text/css"
Href = "scroll-wait-jquery-plugin.css">
</Head>
<Script type = "text/javascript" src = "jquery-1.7.js"> </script>
<Script type = "text/javascript" src = "scroll-wait-jquery-plugin.js"> </script>
<Script type = "text/javascript">
$ (Document). ready (function (){
Var w = $ ("body"). scrollWait ();
W. start ();
SetTimeout (function () {w. stop () ;}, 1000 );
SetTimeout (function () {w. start () ;}, 2000 );
SetTimeout (function () {w. stop () ;}, 3000 );
SetTimeout (function () {w. start () ;}, 4000 );
SetTimeout (function () {w. stop () ;}, 5000 );
SetTimeout (function () {w. start () ;}, 6000 );
SetTimeout (function () {w. end () ;}, 7000 );
});
</Script>
<Body>
</Body>
</Html>

Css:
Copy codeThe Code is as follows:
. InnerCircle {
Position: absolute;
Background: # FFFF00;
Opacity: 0.8;
}
. InnerCircle-change {
Background: #333;
Position: absolute;
}

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.

Related Keywords:
image parallax effect css parallax image effect handbook of image and video processing after effect video mass effect video game cookies and site and plug in data image and video hosting website and online community

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