javascript - SelectPicker - 如果结果与 bootstrap-select 不匹配，则选择选项实时搜索

Question

我想默认显示other并启用选择。这种情况是如果我们输入的结果和选项不匹配。

$('.selectpicker').selectpicker({
     noneResultsText: 'I found no results'
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.2/js/bootstrap.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.2/css/bootstrap.css" rel="stylesheet"/>
<link href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.3/css/bootstrap-select.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.3/js/bootstrap-select.js"></script>


<select class="selectpicker" data-live-search="true" >
    <option value="other">other</option>
    <option>Alabama</option>
    <option>Alaska </option>
    <option>Arizona </option> 
</select>

如果结果和选项不匹配，如何条件value="other"将显示？

Answer 1

我修改了 bootstrap-select.js 以适应这种行为；

我在搜索事件之后插入了这行代码，这将搜索其数据属性中包含“其他”的选项并始终显示它。

    var defaultOption;

    that.$lis.find('a').each(function(){
      // console.log($(this).data("normalized-text"));

      if($(this).data("normalized-text").indexOf("other") >-1){
        defaultOption = $(this);
      }
    });

    defaultOption.parent().removeClass('hide').show();

我缩小了下面的脚本。请运行该代码片段。

!function(e){"use strict";function t(e,t){return e.toUpperCase().indexOf(t.toUpperCase())>-1}function i(t){return e.each([{re:/[\xC0-\xC6]/g,ch:"A"},{re:/[\xE0-\xE6]/g,ch:"a"},{re:/[\xC8-\xCB]/g,ch:"E"},{re:/[\xE8-\xEB]/g,ch:"e"},{re:/[\xCC-\xCF]/g,ch:"I"},{re:/[\xEC-\xEF]/g,ch:"i"},{re:/[\xD2-\xD6]/g,ch:"O"},{re:/[\xF2-\xF6]/g,ch:"o"},{re:/[\xD9-\xDC]/g,ch:"U"},{re:/[\xF9-\xFC]/g,ch:"u"},{re:/[\xC7-\xE7]/g,ch:"c"},{re:/[\xD1]/g,ch:"N"},{re:/[\xF1]/g,ch:"n"}],function(){t=t.replace(this.re,this.ch)}),t}function n(e){var t={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#x27;","`":"&#x60;"},i="(?:"+Object.keys(t).join("|")+")",n=new RegExp(i),s=new RegExp(i,"g"),o=null==e?"":""+e;return n.test(o)?o.replace(s,function(e){return t[e]}):o}e.expr[":"].icontains=function(i,n,s){return t(e(i).text(),s[3])},e.expr[":"].aicontains=function(i,n,s){return t(e(i).data("normalizedText")||e(i).text(),s[3])};var s=function(t,i,n){n&&(n.stopPropagation(),n.preventDefault()),this.$element=e(t),this.$newElement=null,this.$button=null,this.$menu=null,this.$lis=null,this.options=i,null===this.options.title&&(this.options.title=this.$element.attr("title")),this.val=s.prototype.val,this.render=s.prototype.render,this.refresh=s.prototype.refresh,this.setStyle=s.prototype.setStyle,this.selectAll=s.prototype.selectAll,this.deselectAll=s.prototype.deselectAll,this.destroy=s.prototype.remove,this.remove=s.prototype.remove,this.show=s.prototype.show,this.hide=s.prototype.hide,this.init()};function o(t,i){var n,o=arguments,a=t;t=o[0],i=o[1];[].shift.apply(o),void 0===t&&(t=a);var l=this.each(function(){var a=e(this);if(a.is("select")){var l=a.data("selectpicker"),d="object"==typeof t&&t;if(l){if(d)for(var r in d)d.hasOwnProperty(r)&&(l.options[r]=d[r])}else{var c=e.extend({},s.DEFAULTS,e.fn.selectpicker.defaults||{},a.data(),d);a.data("selectpicker",l=new s(this,c,i))}"string"==typeof t&&(n=l[t]instanceof Function?l[t].apply(l,o):l.options[t])}});return void 0!==n?n:l}s.VERSION="1.6.2",s.DEFAULTS={noneSelectedText:"Nothing selected",noneResultsText:"No results match",countSelectedText:function(e,t){return 1==e?"{0} item selected":"{0} items selected"},maxOptionsText:function(e,t){var i=[];return i[0]=1==e?"Limit reached ({n} item max)":"Limit reached ({n} items max)",i[1]=1==t?"Group limit reached ({n} item max)":"Group limit reached ({n} items max)",i},selectAllText:"Select All",deselectAllText:"Deselect All",multipleSeparator:", ",style:"btn-default",size:"auto",title:null,selectedTextFormat:"values",width:!1,container:!1,hideDisabled:!1,showSubtext:!1,showIcon:!0,showContent:!0,dropupAuto:!0,header:!1,liveSearch:!1,actionsBox:!1,iconBase:"glyphicon",tickIcon:"glyphicon-ok",maxOptions:!1,mobile:!1,selectOnTab:!1,dropdownAlignRight:!1,searchAccentInsensitive:!1},s.prototype={constructor:s,init:function(){var t=this,i=this.$element.attr("id");this.$element.hide(),this.multiple=this.$element.prop("multiple"),this.autofocus=this.$element.prop("autofocus"),this.$newElement=this.createView(),this.$element.after(this.$newElement),this.$menu=this.$newElement.find("> .dropdown-menu"),this.$button=this.$newElement.find("> button"),this.$searchbox=this.$newElement.find("input"),this.options.dropdownAlignRight&&this.$menu.addClass("dropdown-menu-right"),void 0!==i&&(this.$button.attr("data-id",i),e('label[for="'+i+'"]').click(function(e){e.preventDefault(),t.$button.focus()})),this.checkDisabled(),this.clickListener(),this.options.liveSearch&&this.liveSearchListener(),this.render(),this.liHeight(),this.setStyle(),this.setWidth(),this.options.container&&this.selectPosition(),this.$menu.data("this",this),this.$newElement.data("this",this),this.options.mobile&&this.mobile()},createDropdown:function(){var t=this.multiple?" show-tick":"",i=this.$element.parent().hasClass("input-group")?" input-group-btn":"",n=this.autofocus?" autofocus":"",s=this.$element.parents().hasClass("form-group-lg")?" btn-lg":this.$element.parents().hasClass("form-group-sm")?" btn-sm":"",o=this.options.header?'<div class="popover-title"><button type="button" class="close" aria-hidden="true">&times;</button>'+this.options.header+"</div>":"",a=this.options.liveSearch?'<div class="bs-searchbox"><input type="text" class="input-block-level form-control" autocomplete="off" /></div>':"",l=this.options.actionsBox?'<div class="bs-actionsbox"><div class="btn-group btn-block"><button class="actions-btn bs-select-all btn btn-sm btn-default">'+this.options.selectAllText+'</button><button class="actions-btn bs-deselect-all btn btn-sm btn-default">'+this.options.deselectAllText+"</button></div></div>":"";return e('<div class="btn-group bootstrap-select'+t+i+'"><button type="button" class="btn dropdown-toggle selectpicker'+s+'" data-toggle="dropdown"'+n+'><span class="filter-option pull-left"></span>&nbsp;<span class="caret"></span></button><div class="dropdown-menu open">'+o+a+l+'<ul class="dropdown-menu inner selectpicker" role="menu"></ul></div></div>')},createView:function(){var e=this.createDropdown(),t=this.createLi();return e.find("ul").append(t),e},reloadLi:function(){this.destroyLi();var e=this.createLi();this.$menu.find("ul").append(e)},destroyLi:function(){this.$menu.find("li").remove()},createLi:function(){var t=this,s=[],o=0,a=function(e,t,i){return"<li"+(void 0!==i?' class="'+i+'"':"")+(void 0!==t|null===t?' data-original-index="'+t+'"':"")+">"+e+"</li>"},l=function(e,s,o,a){var l=i(n(e));return'<a tabindex="0"'+(void 0!==s?' class="'+s+'"':"")+(void 0!==o?' style="'+o+'"':"")+(void 0!==a?'data-optgroup="'+a+'"':"")+' data-normalized-text="'+l+'">'+e+'<span class="'+t.options.iconBase+" "+t.options.tickIcon+' check-mark"></span></a>'};return this.$element.find("option").each(function(){var i=e(this),n=i.attr("class")||"",d=i.attr("style"),r=i.data("content")?i.data("content"):i.html(),c=void 0!==i.data("subtext")?'<small class="muted text-muted">'+i.data("subtext")+"</small>":"",h=void 0!==i.data("icon")?'<span class="'+t.options.iconBase+" "+i.data("icon")+'"></span> ':"",p=i.is(":disabled")||i.parent().is(":disabled"),u=i[0].index;if(""!==h&&p&&(h="<span>"+h+"</span>"),i.data("content")||(r=h+'<span class="text">'+r+c+"</span>"),!t.options.hideDisabled||!p)if(i.parent().is("optgroup")&&!0!==i.data("divider")){if(0===i.index()){o+=1;var f=i.parent().attr("label"),m=void 0!==i.parent().data("subtext")?'<small class="muted text-muted">'+i.parent().data("subtext")+"</small>":"";f=(i.parent().data("icon")?'<span class="'+t.options.iconBase+" "+i.parent().data("icon")+'"></span> ':"")+'<span class="text">'+f+m+"</span>",0!==u&&s.length>0&&s.push(a("",null,"divider")),s.push(a(f,null,"dropdown-header"))}s.push(a(l(r,"opt 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text-muted">'+n.data("subtext")+"</small>":"",n.data("content")&&i.options.showContent?n.data("content"):void 0!==n.attr("title")?n.attr("title"):s+n.html()+t}).toArray(),a=this.multiple?o.join(this.options.multipleSeparator):o[0];if(this.multiple&&this.options.selectedTextFormat.indexOf("count")>-1){var l=this.options.selectedTextFormat.split(">");if(l.length>1&&o.length>l[1]||1==l.length&&o.length>=2){s=this.options.hideDisabled?", [disabled]":"";var d=this.$element.find("option").not('[data-divider="true"], [data-hidden="true"]'+s).length;a=("function"==typeof this.options.countSelectedText?this.options.countSelectedText(o.length,d):this.options.countSelectedText).replace("{0}",o.length.toString()).replace("{1}",d.toString())}}this.options.title=this.$element.attr("title"),"static"==this.options.selectedTextFormat&&(a=this.options.title),a||(a=void 0!==this.options.title?this.options.title:this.options.noneSelectedText),this.$button.attr("title",n(a)),this.$newElement.find(".filter-option").html(a)},setStyle:function(e,t){this.$element.attr("class")&&this.$newElement.addClass(this.$element.attr("class").replace(/selectpicker|mobile-device|validate\[.*\]/gi,""));var i=e||this.options.style;"add"==t?this.$button.addClass(i):"remove"==t?this.$button.removeClass(i):(this.$button.removeClass(this.options.style),this.$button.addClass(i))},liHeight:function(){if(!1!==this.options.size){var e=this.$menu.parent().clone().find("> .dropdown-toggle").prop("autofocus",!1).end().appendTo("body"),t=e.addClass("open").find("> .dropdown-menu"),i=t.find("li").not(".divider").not(".dropdown-header").filter(":visible").children("a").outerHeight(),n=this.options.header?t.find(".popover-title").outerHeight():0,s=this.options.liveSearch?t.find(".bs-searchbox").outerHeight():0,o=this.options.actionsBox?t.find(".bs-actionsbox").outerHeight():0;e.remove(),this.$newElement.data("liHeight",i).data("headerHeight",n).data("searchHeight",s).data("actionsHeight",o)}},setSize:function(){this.findLis();var t,i,n,s=this,o=this.$menu,a=o.find(".inner"),l=this.$newElement.outerHeight(),d=this.$newElement.data("liHeight"),r=this.$newElement.data("headerHeight"),c=this.$newElement.data("searchHeight"),h=this.$newElement.data("actionsHeight"),p=this.$lis.filter(".divider").outerHeight(!0),u=parseInt(o.css("padding-top"))+parseInt(o.css("padding-bottom"))+parseInt(o.css("border-top-width"))+parseInt(o.css("border-bottom-width")),f=this.options.hideDisabled?", .disabled":"",m=e(window),v=u+parseInt(o.css("margin-top"))+parseInt(o.css("margin-bottom"))+2,b=function(){i=s.$newElement.offset().top-m.scrollTop(),n=m.height()-i-l};if(b(),this.options.header&&o.css("padding-top",0),"auto"==this.options.size){var $=function(){var e,l=s.$lis.not(".hide");b(),t=n-v,s.options.dropupAuto&&s.$newElement.toggleClass("dropup",i>n&&t-v<o.height()),s.$newElement.hasClass("dropup")&&(t=i-v),e=l.length+l.filter(".dropdown-header").length>3?3*d+v-2:0,o.css({"max-height":t+"px",overflow:"hidden","min-height":e+r+c+h+"px"}),a.css({"max-height":t-r-c-h-u+"px","overflow-y":"auto","min-height":Math.max(e-u,0)+"px"})};$(),this.$searchbox.off("input.getSize propertychange.getSize").on("input.getSize propertychange.getSize",$),e(window).off("resize.getSize").on("resize.getSize",$),e(window).off("scroll.getSize").on("scroll.getSize",$)}else if(this.options.size&&"auto"!=this.options.size&&o.find("li"+f).length>this.options.size){var g=this.$lis.not(".divider"+f).find(" > *").slice(0,this.options.size).last().parent().index(),x=this.$lis.slice(0,g+1).filter(".divider").length;t=d*this.options.size+x*p+u,s.options.dropupAuto&&this.$newElement.toggleClass("dropup",i>n&&t<o.height()),o.css({"max-height":t+r+c+h+"px",overflow:"hidden"}),a.css({"max-height":t-u+"px","overflow-y":"auto"})}},setWidth:function(){if("auto"==this.options.width){this.$menu.css("min-width","0");var e=this.$newElement.clone().appendTo("body"),t=e.find("> .dropdown-menu").css("width"),i=e.css("width","auto").find("> button").css("width");e.remove(),this.$newElement.css("width",Math.max(parseInt(t),parseInt(i))+"px")}else"fit"==this.options.width?(this.$menu.css("min-width",""),this.$newElement.css("width","").addClass("fit-width")):this.options.width?(this.$menu.css("min-width",""),this.$newElement.css("width",this.options.width)):(this.$menu.css("min-width",""),this.$newElement.css("width",""));this.$newElement.hasClass("fit-width")&&"fit"!==this.options.width&&this.$newElement.removeClass("fit-width")},selectPosition:function(){var t,i,n=this,s=e("<div />"),o=function(e){s.addClass(e.attr("class").replace(/form-control/gi,"")).toggleClass("dropup",e.hasClass("dropup")),t=e.offset(),i=e.hasClass("dropup")?0:e[0].offsetHeight,s.css({top:t.top+i,left:t.left,width:e[0].offsetWidth,position:"absolute"})};this.$newElement.on("click",function(){n.isDisabled()||(o(e(this)),s.appendTo(n.options.container),s.toggleClass("open",!e(this).hasClass("open")),s.append(n.$menu))}),e(window).resize(function(){o(n.$newElement)}),e(window).on("scroll",function(){o(n.$newElement)}),e("html").on("click",function(t){e(t.target).closest(n.$newElement).length<1&&s.removeClass("open")})},setSelected:function(e,t){this.findLis(),this.$lis.filter('[data-original-index="'+e+'"]').toggleClass("selected",t)},setDisabled:function(e,t){this.findLis(),t?this.$lis.filter('[data-original-index="'+e+'"]').addClass("disabled").find("a").attr("href","#").attr("tabindex",-1):this.$lis.filter('[data-original-index="'+e+'"]').removeClass("disabled").find("a").removeAttr("href").attr("tabindex",0)},isDisabled:function(){return this.$element.is(":disabled")},checkDisabled:function(){var e=this;this.isDisabled()?this.$button.addClass("disabled").attr("tabindex",-1):(this.$button.hasClass("disabled")&&this.$button.removeClass("disabled"),-1==this.$button.attr("tabindex")&&(this.$element.data("tabindex")||this.$button.removeAttr("tabindex"))),this.$button.click(function(){return!e.isDisabled()})},tabIndex:function(){this.$element.is("[tabindex]")&&(this.$element.data("tabindex",this.$element.attr("tabindex")),this.$button.attr("tabindex",this.$element.data("tabindex")))},clickListener:function(){var t=this;this.$newElement.on("touchstart.dropdown",".dropdown-menu",function(e){e.stopPropagation()}),this.$newElement.on("click",function(){t.setSize(),t.options.liveSearch||t.multiple||setTimeout(function(){t.$menu.find(".selected a").focus()},10)}),this.$menu.on("click","li a",function(i){var n=e(this),s=n.parent().data("originalIndex"),o=t.$element.val(),a=t.$element.prop("selectedIndex");if(t.multiple&&i.stopPropagation(),i.preventDefault(),!t.isDisabled()&&!n.parent().hasClass("disabled")){var l=t.$element.find("option"),d=l.eq(s),r=d.prop("selected"),c=d.parent("optgroup"),h=t.options.maxOptions,p=c.data("maxOptions")||!1;if(t.multiple){if(d.prop("selected",!r),t.setSelected(s,!r),n.blur(),!1!==h||!1!==p){var u=h<l.filter(":selected").length,f=p<c.find("option:selected").length;if(h&&u||p&&f)if(h&&1==h)l.prop("selected",!1),d.prop("selected",!0),t.$menu.find(".selected").removeClass("selected"),t.setSelected(s,!0);else if(p&&1==p){c.find("option:selected").prop("selected",!1),d.prop("selected",!0);var m=n.data("optgroup");t.$menu.find(".selected").has('a[data-optgroup="'+m+'"]').removeClass("selected"),t.setSelected(s,!0)}else{var v="function"==typeof t.options.maxOptionsText?t.options.maxOptionsText(h,p):t.options.maxOptionsText,b=v[0].replace("{n}",h),$=v[1].replace("{n}",p),g=e('<div class="notify"></div>');v[2]&&(b=b.replace("{var}",v[2][h>1?0:1]),$=$.replace("{var}",v[2][p>1?0:1])),d.prop("selected",!1),t.$menu.append(g),h&&u&&(g.append(e("<div>"+b+"</div>")),t.$element.trigger("maxReached.bs.select")),p&&f&&(g.append(e("<div>"+$+"</div>")),t.$element.trigger("maxReachedGrp.bs.select")),setTimeout(function(){t.setSelected(s,!1)},10),g.delay(750).fadeOut(300,function(){e(this).remove()})}}}else l.prop("selected",!1),d.prop("selected",!0),t.$menu.find(".selected").removeClass("selected"),t.setSelected(s,!0);t.multiple?t.options.liveSearch&&t.$searchbox.focus():t.$button.focus(),(o!=t.$element.val()&&t.multiple||a!=t.$element.prop("selectedIndex")&&!t.multiple)&&t.$element.change()}}),this.$menu.on("click","li.disabled a, .popover-title, .popover-title :not(.close)",function(e){e.target==this&&(e.preventDefault(),e.stopPropagation(),t.options.liveSearch?t.$searchbox.focus():t.$button.focus())}),this.$menu.on("click","li.divider, li.dropdown-header",function(e){e.preventDefault(),e.stopPropagation(),t.options.liveSearch?t.$searchbox.focus():t.$button.focus()}),this.$menu.on("click",".popover-title .close",function(){t.$button.focus()}),this.$searchbox.on("click",function(e){e.stopPropagation()}),this.$menu.on("click",".actions-btn",function(i){t.options.liveSearch?t.$searchbox.focus():t.$button.focus(),i.preventDefault(),i.stopPropagation(),e(this).is(".bs-select-all")?t.selectAll():t.deselectAll(),t.$element.change()}),this.$element.change(function(){t.render(!1)})},liveSearchListener:function(){var t=this,s=e('<li class="no-results"></li>');this.$newElement.on("click.dropdown.data-api",function(){t.$menu.find(".active").removeClass("active"),t.$searchbox.val()&&(t.$searchbox.val(""),t.$lis.not(".is-hidden").removeClass("hide"),s.parent().length&&s.remove()),t.multiple||t.$menu.find(".selected").addClass("active"),setTimeout(function(){t.$searchbox.focus()},10)}),this.$searchbox.on("input propertychange",function(){var o;t.$searchbox.val()?(t.options.searchAccentInsensitive?t.$lis.not(".is-hidden").removeClass("hide").find("a").not(":aicontains("+i(t.$searchbox.val())+")").parent().addClass("hide"):t.$lis.not(".is-hidden").removeClass("hide").find("a").not(":icontains("+t.$searchbox.val()+")").parent().addClass("hide"),t.$menu.find("li").filter(":visible:not(.no-results)").length?s.parent().length&&s.remove():(s.parent().length&&s.remove(),s.html(t.options.noneResultsText+' 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$('.selectpicker').selectpicker({
     noneResultsText: 'I found no results'
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.2/js/bootstrap.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.2/css/bootstrap.css" rel="stylesheet"/>
<link href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.3/css/bootstrap-select.css" rel="stylesheet"/>


<select class="selectpicker" data-live-search="true" >
    <option value="other">other</option>
    <option>Alabama</option>
    <option>Alaska </option>
    <option>Arizona </option> 
</select>