337 lines
9.5 KiB
JavaScript
337 lines
9.5 KiB
JavaScript
/*! UIkit 2.21.0 | http://www.getuikit.com | (c) 2014 YOOtheme | MIT License */
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(function(addon) {
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var component;
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if (window.UIkit) {
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component = addon(UIkit);
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}
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if (typeof define == "function" && define.amd) {
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define("uikit-autocomplete", ["uikit"], function(){
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return component || addon(UIkit);
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});
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}
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})(function(UI){
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"use strict";
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var active;
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UI.component('autocomplete', {
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defaults: {
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minLength: 3,
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param: 'search',
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method: 'post',
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delay: 300,
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loadingClass: 'uk-loading',
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flipDropdown: false,
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skipClass: 'uk-skip',
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hoverClass: 'uk-active',
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source: null,
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renderer: null,
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// template
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template: '<ul class="uk-nav uk-nav-autocomplete uk-autocomplete-results">{{~items}}<li data-value="{{$item.value}}"><a>{{$item.value}}</a></li>{{/items}}</ul>'
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},
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visible : false,
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value : null,
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selected : null,
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boot: function() {
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// init code
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UI.$html.on("focus.autocomplete.uikit", "[data-uk-autocomplete]", function(e) {
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var ele = UI.$(this);
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if (!ele.data("autocomplete")) {
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var obj = UI.autocomplete(ele, UI.Utils.options(ele.attr("data-uk-autocomplete")));
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}
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});
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// register outer click for autocompletes
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UI.$html.on("click.autocomplete.uikit", function(e) {
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if (active && e.target!=active.input[0]) active.hide();
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});
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},
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init: function() {
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var $this = this,
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select = false,
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trigger = UI.Utils.debounce(function(e) {
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if(select) {
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return (select = false);
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}
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$this.handle();
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}, this.options.delay);
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this.dropdown = this.find('.uk-dropdown');
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this.template = this.find('script[type="text/autocomplete"]').html();
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this.template = UI.Utils.template(this.template || this.options.template);
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this.input = this.find("input:first").attr("autocomplete", "off");
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if (!this.dropdown.length) {
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this.dropdown = UI.$('<div class="uk-dropdown"></div>').appendTo(this.element);
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}
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if (this.options.flipDropdown) {
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this.dropdown.addClass('uk-dropdown-flip');
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}
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this.dropdown.attr('aria-expanded', 'false');
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this.input.on({
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"keydown": function(e) {
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if (e && e.which && !e.shiftKey) {
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switch (e.which) {
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case 13: // enter
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select = true;
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if ($this.selected) {
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e.preventDefault();
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$this.select();
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}
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break;
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case 38: // up
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e.preventDefault();
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$this.pick('prev', true);
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break;
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case 40: // down
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e.preventDefault();
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$this.pick('next', true);
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break;
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case 27:
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case 9: // esc, tab
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$this.hide();
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break;
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default:
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break;
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}
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}
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},
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"keyup": trigger
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});
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this.dropdown.on("click", ".uk-autocomplete-results > *", function(){
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$this.select();
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});
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this.dropdown.on("mouseover", ".uk-autocomplete-results > *", function(){
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$this.pick(UI.$(this));
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});
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this.triggercomplete = trigger;
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},
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handle: function() {
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var $this = this, old = this.value;
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this.value = this.input.val();
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if (this.value.length < this.options.minLength) return this.hide();
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if (this.value != old) {
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$this.request();
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}
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return this;
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},
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pick: function(item, scrollinview) {
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var $this = this,
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items = UI.$(this.dropdown.find('.uk-autocomplete-results').children(':not(.'+this.options.skipClass+')')),
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selected = false;
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if (typeof item !== "string" && !item.hasClass(this.options.skipClass)) {
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selected = item;
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} else if (item == 'next' || item == 'prev') {
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if (this.selected) {
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var index = items.index(this.selected);
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if (item == 'next') {
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selected = items.eq(index + 1 < items.length ? index + 1 : 0);
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} else {
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selected = items.eq(index - 1 < 0 ? items.length - 1 : index - 1);
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}
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} else {
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selected = items[(item == 'next') ? 'first' : 'last']();
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}
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selected = UI.$(selected);
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}
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if (selected && selected.length) {
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this.selected = selected;
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items.removeClass(this.options.hoverClass);
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this.selected.addClass(this.options.hoverClass);
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// jump to selected if not in view
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if (scrollinview) {
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var top = selected.position().top,
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scrollTop = $this.dropdown.scrollTop(),
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dpheight = $this.dropdown.height();
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if (top > dpheight || top < 0) {
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$this.dropdown.scrollTop(scrollTop + top);
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}
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}
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}
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},
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select: function() {
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if(!this.selected) return;
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var data = this.selected.data();
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this.trigger("selectitem.uk.autocomplete", [data, this]);
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if (data.value) {
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this.input.val(data.value).trigger('change');
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}
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this.hide();
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},
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show: function() {
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if (this.visible) return;
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this.visible = true;
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this.element.addClass("uk-open");
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if (active && active!==this) {
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active.hide();
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}
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active = this;
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// Update aria
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this.dropdown.attr('aria-expanded', 'true');
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return this;
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},
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hide: function() {
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if (!this.visible) return;
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this.visible = false;
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this.element.removeClass("uk-open");
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if (active === this) {
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active = false;
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}
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// Update aria
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this.dropdown.attr('aria-expanded', 'false');
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return this;
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},
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request: function() {
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var $this = this,
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release = function(data) {
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if(data) {
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$this.render(data);
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}
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$this.element.removeClass($this.options.loadingClass);
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};
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this.element.addClass(this.options.loadingClass);
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if (this.options.source) {
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var source = this.options.source;
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switch(typeof(this.options.source)) {
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case 'function':
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this.options.source.apply(this, [release]);
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break;
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case 'object':
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if(source.length) {
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var items = [];
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source.forEach(function(item){
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if(item.value && item.value.toLowerCase().indexOf($this.value.toLowerCase())!=-1) {
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items.push(item);
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}
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});
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release(items);
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}
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break;
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case 'string':
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var params ={};
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params[this.options.param] = this.value;
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UI.$.ajax({
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url: this.options.source,
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data: params,
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type: this.options.method,
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dataType: 'json'
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}).done(function(json) {
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release(json || []);
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});
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break;
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default:
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release(null);
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}
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} else {
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this.element.removeClass($this.options.loadingClass);
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}
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},
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render: function(data) {
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var $this = this;
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this.dropdown.empty();
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this.selected = false;
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if (this.options.renderer) {
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this.options.renderer.apply(this, [data]);
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} else if(data && data.length) {
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this.dropdown.append(this.template({"items":data}));
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this.show();
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this.trigger('show.uk.autocomplete');
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}
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return this;
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}
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});
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return UI.autocomplete;
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});
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