11 lines
4.8 KiB
JavaScript
11 lines
4.8 KiB
JavaScript
// Awesomplete - Lea Verou - MIT license
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(function(){function m(a,b){for(var c in a){var f=a[c],e=this.input.getAttribute("data-"+c.toLowerCase());this[c]="number"===typeof f?+e:!1===f?null!==e:f instanceof Function?null:e;this[c]=this[c]||b[c]||f}}function d(a,b){return"string"===typeof a?(b||document).querySelector(a):a||null}function h(a,b){return k.call((b||document).querySelectorAll(a))}function l(){h("input.awesomplete").forEach(function(a){new Awesomplete(a)})}var g=self.Awesomplete=function(a,b){var c=this;this.input=d(a);this.input.setAttribute("aria-autocomplete",
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"list");b=b||{};m.call(this,{minChars:2,maxItems:10,autoFirst:!1,filter:g.FILTER_CONTAINS,sort:g.SORT_BYLENGTH,item:function(a,b){return d.create("li",{innerHTML:a.replace(RegExp(d.regExpEscape(b.trim()),"gi"),"<mark>$&</mark>"),"aria-selected":"false"})},replace:function(a){this.input.value=a}},b);this.index=-1;this.container=d.create("div",{className:"awesomplete",around:a});this.ul=d.create("ul",{hidden:"",inside:this.container});this.status=d.create("span",{className:"visually-hidden",role:"status",
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"aria-live":"assertive","aria-relevant":"additions",inside:this.container});d.bind(this.input,{input:this.evaluate.bind(this),blur:this.close.bind(this),keydown:function(a){var b=a.keyCode;if(c.opened)if(13===b&&c.selected)a.preventDefault(),c.select();else if(27===b)c.close();else if(38===b||40===b)a.preventDefault(),c[38===b?"previous":"next"]()}});d.bind(this.input.form,{submit:this.close.bind(this)});d.bind(this.ul,{mousedown:function(a){a=a.target;if(a!==this){for(;a&&!/li/i.test(a.nodeName);)a=
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a.parentNode;a&&c.select(a)}}});this.input.hasAttribute("list")?(this.list="#"+a.getAttribute("list"),a.removeAttribute("list")):this.list=this.input.getAttribute("data-list")||b.list||[];g.all.push(this)};g.prototype={set list(a){Array.isArray(a)?this._list=a:"string"===typeof a&&-1<a.indexOf(",")?this._list=a.split(/\s*,\s*/):(a=d(a))&&a.children&&(this._list=k.apply(a.children).map(function(a){return a.innerHTML.trim()}));document.activeElement===this.input&&this.evaluate()},get selected(){return-1<
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this.index},get opened(){return this.ul&&null==this.ul.getAttribute("hidden")},close:function(){this.ul.setAttribute("hidden","");this.index=-1;d.fire(this.input,"awesomplete-close")},open:function(){this.ul.removeAttribute("hidden");this.autoFirst&&-1===this.index&&this.goto(0);d.fire(this.input,"awesomplete-open")},next:function(){this.goto(this.index<this.ul.children.length-1?this.index+1:-1)},previous:function(){var a=this.ul.children.length;this.goto(this.selected?this.index-1:a-1)},goto:function(a){var b=
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this.ul.children;this.selected&&b[this.index].setAttribute("aria-selected","false");this.index=a;-1<a&&0<b.length&&(b[a].setAttribute("aria-selected","true"),this.status.textContent=b[a].textContent)},select:function(a){if(a=a||this.ul.children[this.index]){var b;d.fire(this.input,"awesomplete-select",{text:a.textContent,preventDefault:function(){b=!0}});b||(this.replace(a.textContent),this.close(),d.fire(this.input,"awesomplete-selectcomplete"))}},evaluate:function(){var a=this,b=this.input.value;
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b.length>=this.minChars&&0<this._list.length?(this.index=-1,this.ul.innerHTML="",this._list.filter(function(c){return a.filter(c,b)}).sort(this.sort).every(function(c,d){a.ul.appendChild(a.item(c,b));return d<a.maxItems-1}),0===this.ul.children.length?this.close():this.open()):this.close()}};g.all=[];g.FILTER_CONTAINS=function(a,b){return RegExp(d.regExpEscape(b.trim()),"i").test(a)};g.FILTER_STARTSWITH=function(a,b){return RegExp("^"+d.regExpEscape(b.trim()),"i").test(a)};g.SORT_BYLENGTH=function(a,
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b){return a.length!==b.length?a.length-b.length:a<b?-1:1};var k=Array.prototype.slice;d.create=function(a,b){var c=document.createElement(a),f;for(f in b){var e=b[f];"inside"===f?d(e).appendChild(c):"around"===f?(e=d(e),e.parentNode.insertBefore(c,e),c.appendChild(e)):f in c?c[f]=e:c.setAttribute(f,e)}return c};d.bind=function(a,b){if(a)for(var c in b){var d=b[c];c.split(/\s+/).forEach(function(b){a.addEventListener(b,d)})}};d.fire=function(a,b,c){var d=document.createEvent("HTMLEvents");d.initEvent(b,
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!0,!0);for(var e in c)d[e]=c[e];a.dispatchEvent(d)};d.regExpEscape=function(a){return a.replace(/[-\\^$*+?.()|[\]{}]/g,"\\$&")};"loading"!==document.readyState?l():document.addEventListener("DOMContentLoaded",l);g.$=d;g.$$=h})();
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