mirror of
https://github.com/devbridge/jQuery-Autocomplete.git
synced 2024-11-10 07:11:02 +00:00
Add plugin js to root to support http://plugins.jquery.com
This commit is contained in:
Tomas Kirda
parent
4fa2e12c87
commit
59b42707ed
633
jquery.autocomplete.js
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633
jquery.autocomplete.js
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/**
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* Ajax Autocomplete for jQuery, version 1.2.2
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* (c) 2013 Tomas Kirda
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*
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* Ajax Autocomplete for jQuery is freely distributable under the terms of an MIT-style license.
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* For details, see the web site: http://www.devbridge.com/projects/autocomplete/jquery/
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*
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*/
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/*jslint browser: true, white: true, plusplus: true */
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/*global define, window, document, jQuery */
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// Expose plugin as an AMD module if AMD loader is present:
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(function (factory) {
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'use strict';
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if (typeof define === 'function' && define.amd) {
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// AMD. Register as an anonymous module.
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define(['jquery'], factory);
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} else {
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// Browser globals
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factory(jQuery);
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}
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}(function ($) {
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'use strict';
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var
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utils = (function () {
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return {
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extend: function (target, source) {
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return $.extend(target, source);
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},
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addEvent: function (element, eventType, handler) {
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if (element.addEventListener) {
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element.addEventListener(eventType, handler, false);
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} else if (element.attachEvent) {
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element.attachEvent('on' + eventType, handler);
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} else {
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throw new Error('Browser doesn\'t support addEventListener or attachEvent');
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}
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},
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removeEvent: function (element, eventType, handler) {
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if (element.removeEventListener) {
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element.removeEventListener(eventType, handler, false);
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} else if (element.detachEvent) {
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element.detachEvent('on' + eventType, handler);
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}
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},
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createNode: function (html) {
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var div = document.createElement('div');
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div.innerHTML = html;
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return div.firstChild;
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}
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};
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}()),
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keys = {
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ESC: 27,
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TAB: 9,
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RETURN: 13,
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UP: 38,
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DOWN: 40
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};
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function Autocomplete(el, options) {
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var noop = function () { },
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that = this,
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defaults = {
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autoSelectFirst: false,
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appendTo: 'body',
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serviceUrl: null,
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lookup: null,
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onSelect: null,
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width: 'auto',
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minChars: 1,
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maxHeight: 300,
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deferRequestBy: 0,
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params: {},
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formatResult: Autocomplete.formatResult,
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delimiter: null,
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zIndex: 9999,
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type: 'GET',
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noCache: false,
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onSearchStart: noop,
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onSearchComplete: noop,
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containerClass: 'autocomplete-suggestions',
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tabDisabled: false,
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lookupFilter: function (suggestion, originalQuery, queryLowerCase) {
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return suggestion.value.toLowerCase().indexOf(queryLowerCase) !== -1;
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},
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paramName: 'query',
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transformResult: function (response) {
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return response.suggestions;
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}
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};
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// Shared variables:
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that.element = el;
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that.el = $(el);
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that.suggestions = [];
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that.badQueries = [];
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that.selectedIndex = -1;
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that.currentValue = that.element.value;
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that.intervalId = 0;
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that.cachedResponse = [];
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that.onChangeInterval = null;
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that.onChange = null;
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that.ignoreValueChange = false;
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that.isLocal = false;
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that.suggestionsContainer = null;
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that.options = $.extend({}, defaults, options);
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that.classes = {
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selected: 'autocomplete-selected',
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suggestion: 'autocomplete-suggestion'
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};
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// Initialize and set options:
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that.initialize();
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that.setOptions(options);
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}
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Autocomplete.utils = utils;
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$.Autocomplete = Autocomplete;
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Autocomplete.formatResult = function (suggestion, currentValue) {
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var reEscape = new RegExp('(\\' + ['/', '.', '*', '+', '?', '|', '(', ')', '[', ']', '{', '}', '\\'].join('|\\') + ')', 'g'),
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pattern = '(' + currentValue.replace(reEscape, '\\$1') + ')';
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return suggestion.value.replace(new RegExp(pattern, 'gi'), '<strong>$1<\/strong>');
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};
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Autocomplete.prototype = {
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killerFn: null,
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initialize: function () {
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var that = this,
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suggestionSelector = '.' + that.classes.suggestion,
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selected = that.classes.selected,
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options = that.options,
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container;
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// Remove autocomplete attribute to prevent native suggestions:
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that.element.setAttribute('autocomplete', 'off');
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that.killerFn = function (e) {
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if ($(e.target).closest('.' + that.options.containerClass).length === 0) {
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that.killSuggestions();
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that.disableKillerFn();
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}
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};
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// Determine suggestions width:
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if (!options.width || options.width === 'auto') {
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options.width = that.el.outerWidth();
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}
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that.suggestionsContainer = Autocomplete.utils.createNode('<div class="' + options.containerClass + '" style="position: absolute; display: none;"></div>');
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container = $(that.suggestionsContainer);
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container.appendTo(options.appendTo).width(options.width);
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// Listen for mouse over event on suggestions list:
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container.on('mouseover', suggestionSelector, function () {
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that.activate($(this).data('index'));
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});
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// Deselect active element when mouse leaves suggestions container:
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container.on('mouseout', function () {
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that.selectedIndex = -1;
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container.children('.' + selected).removeClass(selected);
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});
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// Listen for click event on suggestions list:
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container.on('click', suggestionSelector, function () {
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that.select($(this).data('index'));
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});
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that.fixPosition();
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// Opera does not like keydown:
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if (window.opera) {
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that.el.on('keypress', function (e) { that.onKeyPress(e); });
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} else {
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that.el.on('keydown', function (e) { that.onKeyPress(e); });
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}
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that.el.on('keyup', function (e) { that.onKeyUp(e); });
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that.el.on('blur', function () { that.onBlur(); });
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that.el.on('focus', function () { that.fixPosition(); });
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},
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onBlur: function () {
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this.enableKillerFn();
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},
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setOptions: function (suppliedOptions) {
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var that = this,
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options = that.options;
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utils.extend(options, suppliedOptions);
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that.isLocal = $.isArray(options.lookup);
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if (that.isLocal) {
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options.lookup = that.verifySuggestionsFormat(options.lookup);
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}
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// Adjust height, width and z-index:
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$(that.suggestionsContainer).css({
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'max-height': options.maxHeight + 'px',
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'width': options.width + 'px',
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'z-index': options.zIndex
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});
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},
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clearCache: function () {
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this.cachedResponse = [];
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this.badQueries = [];
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},
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disable: function () {
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this.disabled = true;
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},
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enable: function () {
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this.disabled = false;
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},
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fixPosition: function () {
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var that = this,
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offset;
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// Don't adjsut position if custom container has been specified:
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if (that.options.appendTo !== 'body') {
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return;
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}
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offset = that.el.offset();
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$(that.suggestionsContainer).css({
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top: (offset.top + that.el.outerHeight()) + 'px',
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left: offset.left + 'px'
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});
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},
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enableKillerFn: function () {
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var that = this;
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$(document).on('click', that.killerFn);
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},
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disableKillerFn: function () {
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var that = this;
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$(document).off('click', that.killerFn);
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},
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killSuggestions: function () {
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var that = this;
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that.stopKillSuggestions();
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that.intervalId = window.setInterval(function () {
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that.hide();
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that.stopKillSuggestions();
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}, 300);
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},
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stopKillSuggestions: function () {
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window.clearInterval(this.intervalId);
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},
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onKeyPress: function (e) {
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var that = this;
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// If suggestions are hidden and user presses arrow down, display suggestions:
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if (!that.disabled && !that.visible && e.keyCode === keys.DOWN && that.currentValue) {
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that.suggest();
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return;
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}
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if (that.disabled || !that.visible) {
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return;
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}
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switch (e.keyCode) {
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case keys.ESC:
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that.el.val(that.currentValue);
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that.hide();
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break;
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case keys.TAB:
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case keys.RETURN:
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if (that.selectedIndex === -1) {
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that.hide();
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return;
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}
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that.select(that.selectedIndex);
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if (e.keyCode === keys.TAB && this.options.tabDisabled === false) {
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return;
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}
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break;
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case keys.UP:
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that.moveUp();
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break;
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case keys.DOWN:
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that.moveDown();
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break;
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default:
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return;
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}
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// Cancel event if function did not return:
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e.stopImmediatePropagation();
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e.preventDefault();
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},
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onKeyUp: function (e) {
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var that = this;
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if (that.disabled) {
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return;
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}
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switch (e.keyCode) {
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case keys.UP:
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case keys.DOWN:
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return;
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}
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clearInterval(that.onChangeInterval);
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if (that.currentValue !== that.el.val()) {
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if (that.options.deferRequestBy > 0) {
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// Defer lookup in case when value changes very quickly:
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that.onChangeInterval = setInterval(function () {
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that.onValueChange();
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}, that.options.deferRequestBy);
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} else {
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that.onValueChange();
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}
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}
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},
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onValueChange: function () {
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var that = this,
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q;
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clearInterval(that.onChangeInterval);
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that.currentValue = that.element.value;
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q = that.getQuery(that.currentValue);
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that.selectedIndex = -1;
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if (that.ignoreValueChange) {
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that.ignoreValueChange = false;
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return;
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}
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if (q === '' || q.length < that.options.minChars) {
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that.hide();
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} else {
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that.getSuggestions(q);
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}
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},
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getQuery: function (value) {
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var delimiter = this.options.delimiter,
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parts;
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if (!delimiter) {
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return $.trim(value);
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}
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parts = value.split(delimiter);
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return $.trim(parts[parts.length - 1]);
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},
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getSuggestionsLocal: function (query) {
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var that = this,
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queryLowerCase = query.toLowerCase(),
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filter = that.options.lookupFilter;
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return {
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suggestions: $.grep(that.options.lookup, function (suggestion) {
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return filter(suggestion, query, queryLowerCase);
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})
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};
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},
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getSuggestions: function (q) {
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var response,
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that = this,
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options = that.options;
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response = that.isLocal ? that.getSuggestionsLocal(q) : that.cachedResponse[q];
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if (response && $.isArray(response.suggestions)) {
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that.suggestions = response.suggestions;
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that.suggest();
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} else if (!that.isBadQuery(q)) {
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options.onSearchStart.call(that.element, q);
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options.params[options.paramName] = q;
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$.ajax({
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url: options.serviceUrl,
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data: options.params,
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type: options.type,
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dataType: 'text'
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}).done(function (txt) {
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that.processResponse(txt);
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options.onSearchComplete.call(that.element, q);
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});
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}
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},
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isBadQuery: function (q) {
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var badQueries = this.badQueries,
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i = badQueries.length;
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while (i--) {
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if (q.indexOf(badQueries[i]) === 0) {
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return true;
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}
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}
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return false;
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},
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hide: function () {
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var that = this;
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that.visible = false;
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that.selectedIndex = -1;
|
||||||
|
$(that.suggestionsContainer).hide();
|
||||||
|
},
|
||||||
|
|
||||||
|
suggest: function () {
|
||||||
|
if (this.suggestions.length === 0) {
|
||||||
|
this.hide();
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
var that = this,
|
||||||
|
formatResult = that.options.formatResult,
|
||||||
|
value = that.getQuery(that.currentValue),
|
||||||
|
className = that.classes.suggestion,
|
||||||
|
classSelected = that.classes.selected,
|
||||||
|
container = $(that.suggestionsContainer),
|
||||||
|
html = '';
|
||||||
|
|
||||||
|
// Build suggestions inner HTML:
|
||||||
|
$.each(that.suggestions, function (i, suggestion) {
|
||||||
|
html += '<div class="' + className + '" data-index="' + i + '">' + formatResult(suggestion, value) + '</div>';
|
||||||
|
});
|
||||||
|
|
||||||
|
container.html(html).show();
|
||||||
|
that.visible = true;
|
||||||
|
|
||||||
|
// Select first value by default:
|
||||||
|
if (that.options.autoSelectFirst) {
|
||||||
|
that.selectedIndex = 0;
|
||||||
|
container.children().first().addClass(classSelected);
|
||||||
|
}
|
||||||
|
},
|
||||||
|
|
||||||
|
verifySuggestionsFormat: function (suggestions) {
|
||||||
|
// If suggestions is string array, convert them to supported format:
|
||||||
|
if (suggestions.length && typeof suggestions[0] === 'string') {
|
||||||
|
return $.map(suggestions, function (value) {
|
||||||
|
return { value: value, data: null };
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
return suggestions;
|
||||||
|
},
|
||||||
|
|
||||||
|
processResponse: function (text) {
|
||||||
|
var that = this,
|
||||||
|
response = $.parseJSON(text);
|
||||||
|
|
||||||
|
response.suggestions = that.verifySuggestionsFormat(that.options.transformResult(response));
|
||||||
|
|
||||||
|
// Cache results if cache is not disabled:
|
||||||
|
if (!that.options.noCache) {
|
||||||
|
that.cachedResponse[response[that.options.paramName]] = response;
|
||||||
|
if (response.suggestions.length === 0) {
|
||||||
|
that.badQueries.push(response[that.options.paramName]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Display suggestions only if returned query matches current value:
|
||||||
|
if (response[that.options.paramName] === that.getQuery(that.currentValue)) {
|
||||||
|
that.suggestions = response.suggestions;
|
||||||
|
that.suggest();
|
||||||
|
}
|
||||||
|
},
|
||||||
|
|
||||||
|
activate: function (index) {
|
||||||
|
var that = this,
|
||||||
|
activeItem,
|
||||||
|
selected = that.classes.selected,
|
||||||
|
container = $(that.suggestionsContainer),
|
||||||
|
children = container.children();
|
||||||
|
|
||||||
|
container.children('.' + selected).removeClass(selected);
|
||||||
|
|
||||||
|
that.selectedIndex = index;
|
||||||
|
|
||||||
|
if (that.selectedIndex !== -1 && children.length > that.selectedIndex) {
|
||||||
|
activeItem = children.get(that.selectedIndex);
|
||||||
|
$(activeItem).addClass(selected);
|
||||||
|
return activeItem;
|
||||||
|
}
|
||||||
|
|
||||||
|
return null;
|
||||||
|
},
|
||||||
|
|
||||||
|
select: function (i) {
|
||||||
|
var that = this,
|
||||||
|
selectedValue = that.suggestions[i];
|
||||||
|
|
||||||
|
if (selectedValue) {
|
||||||
|
that.el.val(selectedValue);
|
||||||
|
that.ignoreValueChange = true;
|
||||||
|
that.hide();
|
||||||
|
that.onSelect(i);
|
||||||
|
}
|
||||||
|
},
|
||||||
|
|
||||||
|
moveUp: function () {
|
||||||
|
var that = this;
|
||||||
|
|
||||||
|
if (that.selectedIndex === -1) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (that.selectedIndex === 0) {
|
||||||
|
$(that.suggestionsContainer).children().first().removeClass(that.classes.selected);
|
||||||
|
that.selectedIndex = -1;
|
||||||
|
that.el.val(that.currentValue);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
that.adjustScroll(that.selectedIndex - 1);
|
||||||
|
},
|
||||||
|
|
||||||
|
moveDown: function () {
|
||||||
|
var that = this;
|
||||||
|
|
||||||
|
if (that.selectedIndex === (that.suggestions.length - 1)) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
that.adjustScroll(that.selectedIndex + 1);
|
||||||
|
},
|
||||||
|
|
||||||
|
adjustScroll: function (index) {
|
||||||
|
var that = this,
|
||||||
|
activeItem = that.activate(index),
|
||||||
|
offsetTop,
|
||||||
|
upperBound,
|
||||||
|
lowerBound,
|
||||||
|
heightDelta = 25;
|
||||||
|
|
||||||
|
if (!activeItem) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
offsetTop = activeItem.offsetTop;
|
||||||
|
upperBound = $(that.suggestionsContainer).scrollTop();
|
||||||
|
lowerBound = upperBound + that.options.maxHeight - heightDelta;
|
||||||
|
|
||||||
|
if (offsetTop < upperBound) {
|
||||||
|
$(that.suggestionsContainer).scrollTop(offsetTop);
|
||||||
|
} else if (offsetTop > lowerBound) {
|
||||||
|
$(that.suggestionsContainer).scrollTop(offsetTop - that.options.maxHeight + heightDelta);
|
||||||
|
}
|
||||||
|
|
||||||
|
that.el.val(that.getValue(that.suggestions[index].value));
|
||||||
|
},
|
||||||
|
|
||||||
|
onSelect: function (index) {
|
||||||
|
var that = this,
|
||||||
|
onSelectCallback = that.options.onSelect,
|
||||||
|
suggestion = that.suggestions[index];
|
||||||
|
|
||||||
|
that.el.val(that.getValue(suggestion.value));
|
||||||
|
|
||||||
|
if ($.isFunction(onSelectCallback)) {
|
||||||
|
onSelectCallback.call(that.element, suggestion);
|
||||||
|
}
|
||||||
|
},
|
||||||
|
|
||||||
|
getValue: function (value) {
|
||||||
|
var that = this,
|
||||||
|
delimiter = that.options.delimiter,
|
||||||
|
currentValue,
|
||||||
|
parts;
|
||||||
|
|
||||||
|
if (!delimiter) {
|
||||||
|
return value;
|
||||||
|
}
|
||||||
|
|
||||||
|
currentValue = that.currentValue;
|
||||||
|
parts = currentValue.split(delimiter);
|
||||||
|
|
||||||
|
if (parts.length === 1) {
|
||||||
|
return value;
|
||||||
|
}
|
||||||
|
|
||||||
|
return currentValue.substr(0, currentValue.length - parts[parts.length - 1].length) + value;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// Create chainable jQuery plugin:
|
||||||
|
$.fn.autocomplete = function (options, args) {
|
||||||
|
return this.each(function () {
|
||||||
|
var dataKey = 'autocomplete',
|
||||||
|
inputElement = $(this),
|
||||||
|
instance;
|
||||||
|
|
||||||
|
if (typeof options === 'string') {
|
||||||
|
instance = inputElement.data(dataKey);
|
||||||
|
if (typeof instance[options] === 'function') {
|
||||||
|
instance[options](args);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
instance = new Autocomplete(this, options);
|
||||||
|
inputElement.data(dataKey, instance);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
};
|
||||||
|
}));
|
||||||
Loading…
Reference in New Issue
Block a user