明霞山资源网 Design By www.htccd.com
在实际开发中会遇到确实需要获取隐藏元素的宽高,这儿所说的隐藏元素是display为none的元素。
可使用jQuery Actual Plugin插件来完成,其源码如下:
;( function ( $ ){
$.fn.addBack = $.fn.addBack || $.fn.andSelf;
$.fn.extend({
actual : function ( method, options ){
// check if the jQuery method exist
if( !this[ method ]){
throw '$.actual => The jQuery method "' + method + '" you called does not exist';
}
var defaults = {
absolute : false,
clone : false,
includeMargin : false,
display : 'block'
};
var configs = $.extend( defaults, options );
var $target = this.eq( 0 );
var fix, restore;
if( configs.clone === true ){
fix = function (){
var style = 'position: absolute !important; top: -1000 !important; ';
// this is useful with css3pie
$target = $target.
clone().
attr( 'style', style ).
appendTo( 'body' );
};
restore = function (){
// remove DOM element after getting the width
$target.remove();
};
}else{
var tmp = [];
var style = '';
var $hidden;
fix = function (){
// get all hidden parents
$hidden = $target.parents().addBack().filter( ':hidden' );
style += 'visibility: hidden !important; display: ' + configs.display + ' !important; ';
if( configs.absolute === true ) style += 'position: absolute !important; ';
// save the origin style props
// set the hidden el css to be got the actual value later
$hidden.each( function (){
// Save original style. If no style was set, attr() returns undefined
var $this = $( this );
var thisStyle = $this.attr( 'style' );
tmp.push( thisStyle );
// Retain as much of the original style as possible, if there is one
$this.attr( 'style', thisStyle "htmlcode">
;( function ( factory ) {
if ( typeof define === 'function' && define.amd ) {
// AMD. Register module depending on jQuery using requirejs define.
define( ['jquery'], factory );
} else {
// No AMD.
factory( jQuery );
}
}( function ( $ ){
$.fn.addBack = $.fn.addBack || $.fn.andSelf;
$.fn.extend({
actual : function ( method, options ){
// check if the jQuery method exist
if( !this[ method ]){
throw '$.actual => The jQuery method "' + method + '" you called does not exist';
}
var defaults = {
absolute : false,
clone : false,
includeMargin : false,
display : 'block'
};
var configs = $.extend( defaults, options );
var $target = this.eq( 0 );
var fix, restore;
if( configs.clone === true ){
fix = function (){
var style = 'position: absolute !important; top: -1000 !important; ';
// this is useful with css3pie
$target = $target.
clone().
attr( 'style', style ).
appendTo( 'body' );
};
restore = function (){
// remove DOM element after getting the width
$target.remove();
};
}else{
var tmp = [];
var style = '';
var $hidden;
fix = function (){
// get all hidden parents
$hidden = $target.parents().addBack().filter( ':hidden' );
style += 'visibility: hidden !important; display: ' + configs.display + ' !important; ';
if( configs.absolute === true ) style += 'position: absolute !important; ';
// save the origin style props
// set the hidden el css to be got the actual value later
$hidden.each( function (){
// Save original style. If no style was set, attr() returns undefined
var $this = $( this );
var thisStyle = $this.attr( 'style' );
tmp.push( thisStyle );
// Retain as much of the original style as possible, if there is one
$this.attr( 'style', thisStyle "htmlcode">
//get hidden element actual width
$('.hidden').actual('width');
//get hidden element actual innerWidth
$('.hidden').actual('innerWidth');
//get hidden element actual outerWidth
$('.hidden').actual('outerWidth');
//get hidden element actual outerWidth and set the `includeMargin` argument
$('.hidden').actual('outerWidth',{includeMargin:true});
//get hidden element actual height
$('.hidden').actual('height');
//get hidden element actual innerHeight
$('.hidden').actual('innerHeight');
//get hidden element actual outerHeight
$('.hidden').actual('outerHeight');
// get hidden element actual outerHeight and set the `includeMargin` argument
$('.hidden').actual('outerHeight',{includeMargin:true});
//if the page jumps or blinks, pass a attribute '{ absolute : true }'
//be very careful, you might get a wrong result depends on how you makrup your html and css
$('.hidden').actual('height',{absolute:true});
// if you use css3pie with a float element
// for example a rounded corner navigation menu you can also try to pass a attribute '{ clone : true }'
// please see demo/css3pie in action
$('.hidden').actual('width',{clone:true});
以上就是本文的全部内容,希望本文的内容对大家的学习或者工作能带来一定的帮助,同时也希望多多支持!
明霞山资源网 Design By www.htccd.com
广告合作:本站广告合作请联系QQ:858582 申请时备注:广告合作(否则不回)
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
明霞山资源网 Design By www.htccd.com
暂无评论...
RTX 5090要首发 性能要翻倍!三星展示GDDR7显存
三星在GTC上展示了专为下一代游戏GPU设计的GDDR7内存。
首次推出的GDDR7内存模块密度为16GB,每个模块容量为2GB。其速度预设为32 Gbps(PAM3),但也可以降至28 Gbps,以提高产量和初始阶段的整体性能和成本效益。
据三星表示,GDDR7内存的能效将提高20%,同时工作电压仅为1.1V,低于标准的1.2V。通过采用更新的封装材料和优化的电路设计,使得在高速运行时的发热量降低,GDDR7的热阻比GDDR6降低了70%。