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70 lines
2.0 KiB
70 lines
2.0 KiB
2 years ago
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(function($){
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var selects=$('select');//获取select
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for(var i=0;i<selects.length;i++){
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createSelect(selects[i],i);
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}
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function createSelect(select_container,index){
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//创建select容器，class为select_box，插入到select标签前
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var tag_select=$('<div></div>');//div相当于select标签
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tag_select.attr('class','select_box');
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tag_select.insertBefore(select_container);
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//显示框class为select_showbox,插入到创建的tag_select中
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var select_showbox=$('<div></div>');//显示框
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select_showbox.css('cursor','pointer').attr('class','select_showbox').appendTo(tag_select);
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//创建option容器，class为select_option，插入到创建的tag_select中
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var ul_option=$('<ul></ul>');//创建option列表
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ul_option.attr('class','select_option');
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ul_option.appendTo(tag_select);
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createOptions(index,ul_option);//创建option
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//点击显示框
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tag_select.toggle(function(){
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ul_option.show();
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},function(){
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ul_option.hide();
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});
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var li_option=ul_option.find('li');
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li_option.on('click',function(){
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$(this).addClass('selected').siblings().removeClass('selected');
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var value=$(this).text();
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select_showbox.text(value);
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ul_option.hide();
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});
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li_option.hover(function(){
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$(this).addClass('hover').siblings().removeClass('hover');
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},function(){
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li_option.removeClass('hover');
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});
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}
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function createOptions(index,ul_list){
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//获取被选中的元素并将其值赋值到显示框中
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var options=selects.eq(index).find('option'),
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selected_option=options.filter(':selected'),
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selected_index=selected_option.index(),
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showbox=ul_list.prev();
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showbox.text(selected_option.text());
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//为每个option建立个li并赋值
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for(var n=0;n<options.length;n++){
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var tag_option=$('<li></li>'),//li相当于option
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txt_option=options.eq(n).text();
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tag_option.text(txt_option).css('cursor','pointer').appendTo(ul_list);
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//为被选中的元素添加class为selected
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if(n==selected_index){
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tag_option.attr('class','selected');
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}
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}
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}
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})(jQuery)
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