1044 lines
35 KiB
JavaScript
1044 lines
35 KiB
JavaScript
/*
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* jQuery Plugin: Tokenizing Autocomplete Text Entry
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* Version 1.6.1
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*
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* Copyright (c) 2009 James Smith (http://loopj.com)
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* Licensed jointly under the GPL and MIT licenses,
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* choose which one suits your project best!
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*
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*/
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(function ($) {
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// Default settings
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var DEFAULT_SETTINGS = {
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// Search settings
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method: "GET",
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queryParam: "q",
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searchDelay: 300,
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minChars: 1,
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propertyToSearch: "name",
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jsonContainer: null,
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contentType: "json",
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// Prepopulation settings
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prePopulate: null,
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processPrePopulate: false,
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// Display settings
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hintText: "Type in a search term",
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noResultsText: "No results",
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searchingText: "Searching...",
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deleteText: "×",
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animateDropdown: true,
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placeholder: null,
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theme: null,
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zindex: 999,
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resultsLimit: null,
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enableHTML: false,
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resultsFormatter: function(item) {
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var string = item[this.propertyToSearch];
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return "<li>" + (this.enableHTML ? string : _escapeHTML(string)) + "</li>";
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},
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tokenFormatter: function(item) {
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var string = item[this.propertyToSearch];
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return "<li><p>" + (this.enableHTML ? string : _escapeHTML(string)) + "</p></li>";
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},
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// Tokenization settings
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tokenLimit: null,
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tokenDelimiter: ",",
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preventDuplicates: false,
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tokenValue: "id",
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// Behavioral settings
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allowFreeTagging: false,
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allowTabOut: false,
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// Callbacks
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onResult: null,
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onCachedResult: null,
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onAdd: null,
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onFreeTaggingAdd: null,
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onDelete: null,
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onReady: null,
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// Other settings
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idPrefix: "token-input-",
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// Keep track if the input is currently in disabled mode
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disabled: false
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};
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// Default classes to use when theming
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var DEFAULT_CLASSES = {
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tokenList: "token-input-list",
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token: "token-input-token",
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tokenReadOnly: "token-input-token-readonly",
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tokenDelete: "token-input-delete-token",
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selectedToken: "token-input-selected-token",
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highlightedToken: "token-input-highlighted-token",
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dropdown: "token-input-dropdown",
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dropdownItem: "token-input-dropdown-item",
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dropdownItem2: "token-input-dropdown-item2",
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selectedDropdownItem: "token-input-selected-dropdown-item",
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inputToken: "token-input-input-token",
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focused: "token-input-focused",
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disabled: "token-input-disabled"
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};
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// Input box position "enum"
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var POSITION = {
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BEFORE: 0,
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AFTER: 1,
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END: 2
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};
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// Keys "enum"
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var KEY = {
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BACKSPACE: 8,
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TAB: 9,
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ENTER: 13,
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ESCAPE: 27,
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SPACE: 32,
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PAGE_UP: 33,
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PAGE_DOWN: 34,
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END: 35,
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HOME: 36,
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LEFT: 37,
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UP: 38,
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RIGHT: 39,
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DOWN: 40,
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NUMPAD_ENTER: 108,
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COMMA: 188
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};
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var HTML_ESCAPES = {
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'&': '&',
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'<': '<',
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'>': '>',
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'"': '"',
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"'": ''',
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'/': '/'
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};
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var HTML_ESCAPE_CHARS = /[&<>"'\/]/g;
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function coerceToString(val) {
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return String((val === null || val === undefined) ? '' : val);
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}
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function _escapeHTML(text) {
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return coerceToString(text).replace(HTML_ESCAPE_CHARS, function(match) {
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return HTML_ESCAPES[match];
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});
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}
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// Additional public (exposed) methods
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var methods = {
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init: function(url_or_data_or_function, options) {
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var settings = $.extend({}, DEFAULT_SETTINGS, options || {});
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return this.each(function () {
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$(this).data("settings", settings);
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$(this).data("tokenInputObject", new $.TokenList(this, url_or_data_or_function, settings));
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});
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},
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clear: function() {
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this.data("tokenInputObject").clear();
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return this;
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},
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add: function(item) {
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this.data("tokenInputObject").add(item);
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return this;
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},
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remove: function(item) {
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this.data("tokenInputObject").remove(item);
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return this;
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},
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get: function() {
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return this.data("tokenInputObject").getTokens();
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},
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toggleDisabled: function(disable) {
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this.data("tokenInputObject").toggleDisabled(disable);
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return this;
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},
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setOptions: function(options){
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$(this).data("settings", $.extend({}, $(this).data("settings"), options || {}));
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return this;
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}
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};
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// Expose the .tokenInput function to jQuery as a plugin
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$.fn.tokenInput = function (method) {
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// Method calling and initialization logic
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if(methods[method]) {
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return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
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} else {
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return methods.init.apply(this, arguments);
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}
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};
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// TokenList class for each input
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$.TokenList = function (input, url_or_data, settings) {
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//
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// Initialization
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//
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// Configure the data source
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if($.type(url_or_data) === "string" || $.type(url_or_data) === "function") {
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// Set the url to query against
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$(input).data("settings").url = url_or_data;
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// If the URL is a function, evaluate it here to do our initalization work
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var url = computeURL();
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// Make a smart guess about cross-domain if it wasn't explicitly specified
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if($(input).data("settings").crossDomain === undefined && typeof url === "string") {
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if(url.indexOf("://") === -1) {
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$(input).data("settings").crossDomain = false;
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} else {
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$(input).data("settings").crossDomain = (location.href.split(/\/+/g)[1] !== url.split(/\/+/g)[1]);
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}
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}
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} else if(typeof(url_or_data) === "object") {
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// Set the local data to search through
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$(input).data("settings").local_data = url_or_data;
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}
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// Build class names
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if($(input).data("settings").classes) {
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// Use custom class names
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$(input).data("settings").classes = $.extend({}, DEFAULT_CLASSES, $(input).data("settings").classes);
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} else if($(input).data("settings").theme) {
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// Use theme-suffixed default class names
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$(input).data("settings").classes = {};
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$.each(DEFAULT_CLASSES, function(key, value) {
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$(input).data("settings").classes[key] = value + "-" + $(input).data("settings").theme;
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});
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} else {
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$(input).data("settings").classes = DEFAULT_CLASSES;
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}
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// Save the tokens
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var saved_tokens = [];
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// Keep track of the number of tokens in the list
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var token_count = 0;
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// Basic cache to save on db hits
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var cache = new $.TokenList.Cache();
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// Keep track of the timeout, old vals
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var timeout;
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var input_val;
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// Create a new text input an attach keyup events
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var input_box = $("<input type=\"text\" autocomplete=\"off\" autocapitalize=\"off\">")
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.css({
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outline: "none"
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})
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.attr("id", $(input).data("settings").idPrefix + input.id)
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.focus(function () {
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if ($(input).data("settings").disabled) {
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return false;
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} else
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if ($(input).data("settings").tokenLimit === null || $(input).data("settings").tokenLimit !== token_count) {
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show_dropdown_hint();
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}
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token_list.addClass($(input).data("settings").classes.focused);
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})
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.blur(function () {
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hide_dropdown();
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if ($(input).data("settings").allowFreeTagging) {
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add_freetagging_tokens();
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}
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$(this).val("");
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token_list.removeClass($(input).data("settings").classes.focused);
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})
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.bind("keyup keydown blur update", resize_input)
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.keydown(function (event) {
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var previous_token;
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var next_token;
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switch(event.keyCode) {
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case KEY.LEFT:
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case KEY.RIGHT:
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case KEY.UP:
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case KEY.DOWN:
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if(!$(this).val()) {
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previous_token = input_token.prev();
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next_token = input_token.next();
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if((previous_token.length && previous_token.get(0) === selected_token) || (next_token.length && next_token.get(0) === selected_token)) {
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// Check if there is a previous/next token and it is selected
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if(event.keyCode === KEY.LEFT || event.keyCode === KEY.UP) {
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deselect_token($(selected_token), POSITION.BEFORE);
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} else {
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deselect_token($(selected_token), POSITION.AFTER);
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}
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} else if((event.keyCode === KEY.LEFT || event.keyCode === KEY.UP) && previous_token.length) {
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// We are moving left, select the previous token if it exists
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select_token($(previous_token.get(0)));
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} else if((event.keyCode === KEY.RIGHT || event.keyCode === KEY.DOWN) && next_token.length) {
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// We are moving right, select the next token if it exists
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select_token($(next_token.get(0)));
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}
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} else {
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var dropdown_item = null;
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if(event.keyCode === KEY.DOWN || event.keyCode === KEY.RIGHT) {
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dropdown_item = $(selected_dropdown_item).next();
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} else {
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dropdown_item = $(selected_dropdown_item).prev();
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}
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if(dropdown_item.length) {
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select_dropdown_item(dropdown_item);
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}
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}
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return false;
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break;
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case KEY.BACKSPACE:
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previous_token = input_token.prev();
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if(!$(this).val().length) {
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if(selected_token) {
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delete_token($(selected_token));
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hidden_input.change();
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} else if(previous_token.length) {
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select_token($(previous_token.get(0)));
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}
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return false;
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} else if($(this).val().length === 1) {
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hide_dropdown();
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} else {
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// set a timeout just long enough to let this function finish.
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setTimeout(function(){do_search();}, 5);
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}
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break;
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case KEY.TAB:
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case KEY.ENTER:
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case KEY.NUMPAD_ENTER:
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case KEY.COMMA:
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if(selected_dropdown_item) {
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add_token($(selected_dropdown_item).data("tokeninput"));
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hidden_input.change();
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} else {
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if ($(input).data("settings").allowFreeTagging) {
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if($(input).data("settings").allowTabOut && $(this).val() === "") {
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return true;
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} else {
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add_freetagging_tokens();
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}
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} else {
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$(this).val("");
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if($(input).data("settings").allowTabOut) {
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return true;
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}
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}
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event.stopPropagation();
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event.preventDefault();
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}
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return false;
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case KEY.ESCAPE:
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hide_dropdown();
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return true;
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default:
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if(String.fromCharCode(event.which)) {
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// set a timeout just long enough to let this function finish.
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setTimeout(function(){do_search();}, 5);
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}
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break;
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}
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});
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// Keep reference for placeholder
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if (settings.placeholder)
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input_box.attr("placeholder", settings.placeholder)
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// Keep a reference to the original input box
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var hidden_input = $(input)
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.hide()
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.val("")
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.focus(function () {
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focus_with_timeout(input_box);
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})
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.blur(function () {
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input_box.blur();
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});
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// Keep a reference to the selected token and dropdown item
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var selected_token = null;
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var selected_token_index = 0;
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var selected_dropdown_item = null;
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// The list to store the token items in
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var token_list = $("<ul />")
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.addClass($(input).data("settings").classes.tokenList)
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.click(function (event) {
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var li = $(event.target).closest("li");
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if(li && li.get(0) && $.data(li.get(0), "tokeninput")) {
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toggle_select_token(li);
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} else {
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// Deselect selected token
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if(selected_token) {
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deselect_token($(selected_token), POSITION.END);
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}
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// Focus input box
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focus_with_timeout(input_box);
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}
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})
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.mouseover(function (event) {
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var li = $(event.target).closest("li");
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if(li && selected_token !== this) {
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li.addClass($(input).data("settings").classes.highlightedToken);
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}
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})
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.mouseout(function (event) {
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var li = $(event.target).closest("li");
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if(li && selected_token !== this) {
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li.removeClass($(input).data("settings").classes.highlightedToken);
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}
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})
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.insertBefore(hidden_input);
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// The token holding the input box
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var input_token = $("<li />")
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.addClass($(input).data("settings").classes.inputToken)
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.appendTo(token_list)
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.append(input_box);
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// The list to store the dropdown items in
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var dropdown = $("<div>")
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.addClass($(input).data("settings").classes.dropdown)
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.appendTo("body")
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.hide();
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// Magic element to help us resize the text input
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var input_resizer = $("<tester/>")
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.insertAfter(input_box)
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.css({
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position: "absolute",
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top: -9999,
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left: -9999,
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width: "auto",
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fontSize: input_box.css("fontSize"),
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fontFamily: input_box.css("fontFamily"),
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fontWeight: input_box.css("fontWeight"),
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letterSpacing: input_box.css("letterSpacing"),
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whiteSpace: "nowrap"
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});
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// Pre-populate list if items exist
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hidden_input.val("");
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var li_data = $(input).data("settings").prePopulate || hidden_input.data("pre");
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if($(input).data("settings").processPrePopulate && $.isFunction($(input).data("settings").onResult)) {
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li_data = $(input).data("settings").onResult.call(hidden_input, li_data);
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}
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if(li_data && li_data.length) {
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$.each(li_data, function (index, value) {
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insert_token(value);
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checkTokenLimit();
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input_box.attr("placeholder", null)
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});
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}
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// Check if widget should initialize as disabled
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if ($(input).data("settings").disabled) {
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toggleDisabled(true);
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}
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// Initialization is done
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if($.isFunction($(input).data("settings").onReady)) {
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$(input).data("settings").onReady.call();
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}
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//
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// Public functions
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//
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this.clear = function() {
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token_list.children("li").each(function() {
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if ($(this).children("input").length === 0) {
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delete_token($(this));
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}
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});
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};
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this.add = function(item) {
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add_token(item);
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};
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this.remove = function(item) {
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token_list.children("li").each(function() {
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if ($(this).children("input").length === 0) {
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var currToken = $(this).data("tokeninput");
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var match = true;
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for (var prop in item) {
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if (item[prop] !== currToken[prop]) {
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match = false;
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break;
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}
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}
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if (match) {
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delete_token($(this));
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}
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}
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});
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};
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this.getTokens = function() {
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return saved_tokens;
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};
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this.toggleDisabled = function(disable) {
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toggleDisabled(disable);
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};
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// Resize input to maximum width so the placeholder can be seen
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resize_input();
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//
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// Private functions
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//
|
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function escapeHTML(text) {
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return $(input).data("settings").enableHTML ? text : _escapeHTML(text);
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}
|
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|
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// Toggles the widget between enabled and disabled state, or according
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// to the [disable] parameter.
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function toggleDisabled(disable) {
|
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if (typeof disable === 'boolean') {
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$(input).data("settings").disabled = disable
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} else {
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$(input).data("settings").disabled = !$(input).data("settings").disabled;
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}
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input_box.attr('disabled', $(input).data("settings").disabled);
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token_list.toggleClass($(input).data("settings").classes.disabled, $(input).data("settings").disabled);
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// if there is any token selected we deselect it
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if(selected_token) {
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deselect_token($(selected_token), POSITION.END);
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}
|
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hidden_input.attr('disabled', $(input).data("settings").disabled);
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}
|
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|
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function checkTokenLimit() {
|
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if($(input).data("settings").tokenLimit !== null && token_count >= $(input).data("settings").tokenLimit) {
|
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input_box.hide();
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hide_dropdown();
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return;
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}
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}
|
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|
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function resize_input() {
|
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if(input_val === (input_val = input_box.val())) {return;}
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|
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// Get width left on the current line
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var width_left = token_list.width() - input_box.offset().left - token_list.offset().left;
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// Enter new content into resizer and resize input accordingly
|
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input_resizer.html(_escapeHTML(input_val));
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// Get maximum width, minimum the size of input and maximum the widget's width
|
|
input_box.width(Math.min(token_list.width(),
|
|
Math.max(width_left, input_resizer.width() + 30)));
|
|
}
|
|
|
|
function is_printable_character(keycode) {
|
|
return ((keycode >= 48 && keycode <= 90) || // 0-1a-z
|
|
(keycode >= 96 && keycode <= 111) || // numpad 0-9 + - / * .
|
|
(keycode >= 186 && keycode <= 192) || // ; = , - . / ^
|
|
(keycode >= 219 && keycode <= 222)); // ( \ ) '
|
|
}
|
|
|
|
function add_freetagging_tokens() {
|
|
var value = $.trim(input_box.val());
|
|
var tokens = value.split($(input).data("settings").tokenDelimiter);
|
|
$.each(tokens, function(i, token) {
|
|
if (!token) {
|
|
return;
|
|
}
|
|
|
|
if ($.isFunction($(input).data("settings").onFreeTaggingAdd)) {
|
|
token = $(input).data("settings").onFreeTaggingAdd.call(hidden_input, token);
|
|
}
|
|
var object = {};
|
|
object[$(input).data("settings").tokenValue] = object[$(input).data("settings").propertyToSearch] = token;
|
|
add_token(object);
|
|
});
|
|
}
|
|
|
|
// Inner function to a token to the list
|
|
function insert_token(item) {
|
|
var $this_token = $($(input).data("settings").tokenFormatter(item));
|
|
var readonly = item.readonly === true ? true : false;
|
|
|
|
if(readonly) $this_token.addClass($(input).data("settings").classes.tokenReadOnly);
|
|
|
|
$this_token.addClass($(input).data("settings").classes.token).insertBefore(input_token);
|
|
|
|
// The 'delete token' button
|
|
if(!readonly) {
|
|
$("<span>" + $(input).data("settings").deleteText + "</span>")
|
|
.addClass($(input).data("settings").classes.tokenDelete)
|
|
.appendTo($this_token)
|
|
.click(function () {
|
|
if (!$(input).data("settings").disabled) {
|
|
delete_token($(this).parent());
|
|
hidden_input.change();
|
|
return false;
|
|
}
|
|
});
|
|
}
|
|
|
|
// Store data on the token
|
|
var token_data = item;
|
|
$.data($this_token.get(0), "tokeninput", item);
|
|
|
|
// Save this token for duplicate checking
|
|
saved_tokens = saved_tokens.slice(0,selected_token_index).concat([token_data]).concat(saved_tokens.slice(selected_token_index));
|
|
selected_token_index++;
|
|
|
|
// Update the hidden input
|
|
update_hidden_input(saved_tokens, hidden_input);
|
|
|
|
token_count += 1;
|
|
|
|
// Check the token limit
|
|
if($(input).data("settings").tokenLimit !== null && token_count >= $(input).data("settings").tokenLimit) {
|
|
input_box.hide();
|
|
hide_dropdown();
|
|
}
|
|
|
|
return $this_token;
|
|
}
|
|
|
|
// Add a token to the token list based on user input
|
|
function add_token (item) {
|
|
var callback = $(input).data("settings").onAdd;
|
|
|
|
// See if the token already exists and select it if we don't want duplicates
|
|
if(token_count > 0 && $(input).data("settings").preventDuplicates) {
|
|
var found_existing_token = null;
|
|
token_list.children().each(function () {
|
|
var existing_token = $(this);
|
|
var existing_data = $.data(existing_token.get(0), "tokeninput");
|
|
if(existing_data && existing_data[settings.tokenValue] === item[settings.tokenValue]) {
|
|
found_existing_token = existing_token;
|
|
return false;
|
|
}
|
|
});
|
|
|
|
if(found_existing_token) {
|
|
select_token(found_existing_token);
|
|
input_token.insertAfter(found_existing_token);
|
|
focus_with_timeout(input_box);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Squeeze input_box so we force no unnecessary line break
|
|
input_box.width(0);
|
|
|
|
// Insert the new tokens
|
|
if($(input).data("settings").tokenLimit == null || token_count < $(input).data("settings").tokenLimit) {
|
|
insert_token(item);
|
|
// Remove the placeholder so it's not seen after you've added a token
|
|
input_box.attr("placeholder", null)
|
|
checkTokenLimit();
|
|
}
|
|
|
|
// Clear input box
|
|
input_box.val("");
|
|
|
|
// Don't show the help dropdown, they've got the idea
|
|
hide_dropdown();
|
|
|
|
// Execute the onAdd callback if defined
|
|
if($.isFunction(callback)) {
|
|
callback.call(hidden_input,item);
|
|
}
|
|
}
|
|
|
|
// Select a token in the token list
|
|
function select_token (token) {
|
|
if (!$(input).data("settings").disabled) {
|
|
token.addClass($(input).data("settings").classes.selectedToken);
|
|
selected_token = token.get(0);
|
|
|
|
// Hide input box
|
|
input_box.val("");
|
|
|
|
// Hide dropdown if it is visible (eg if we clicked to select token)
|
|
hide_dropdown();
|
|
}
|
|
}
|
|
|
|
// Deselect a token in the token list
|
|
function deselect_token (token, position) {
|
|
token.removeClass($(input).data("settings").classes.selectedToken);
|
|
selected_token = null;
|
|
|
|
if(position === POSITION.BEFORE) {
|
|
input_token.insertBefore(token);
|
|
selected_token_index--;
|
|
} else if(position === POSITION.AFTER) {
|
|
input_token.insertAfter(token);
|
|
selected_token_index++;
|
|
} else {
|
|
input_token.appendTo(token_list);
|
|
selected_token_index = token_count;
|
|
}
|
|
|
|
// Show the input box and give it focus again
|
|
focus_with_timeout(input_box);
|
|
}
|
|
|
|
// Toggle selection of a token in the token list
|
|
function toggle_select_token(token) {
|
|
var previous_selected_token = selected_token;
|
|
|
|
if(selected_token) {
|
|
deselect_token($(selected_token), POSITION.END);
|
|
}
|
|
|
|
if(previous_selected_token === token.get(0)) {
|
|
deselect_token(token, POSITION.END);
|
|
} else {
|
|
select_token(token);
|
|
}
|
|
}
|
|
|
|
// Delete a token from the token list
|
|
function delete_token (token) {
|
|
// Remove the id from the saved list
|
|
var token_data = $.data(token.get(0), "tokeninput");
|
|
var callback = $(input).data("settings").onDelete;
|
|
|
|
var index = token.prevAll().length;
|
|
if(index > selected_token_index) index--;
|
|
|
|
// Delete the token
|
|
token.remove();
|
|
selected_token = null;
|
|
|
|
// Show the input box and give it focus again
|
|
focus_with_timeout(input_box);
|
|
|
|
// Remove this token from the saved list
|
|
saved_tokens = saved_tokens.slice(0,index).concat(saved_tokens.slice(index+1));
|
|
if (saved_tokens.length == 0) {
|
|
input_box.attr("placeholder", settings.placeholder)
|
|
}
|
|
if(index < selected_token_index) selected_token_index--;
|
|
|
|
// Update the hidden input
|
|
update_hidden_input(saved_tokens, hidden_input);
|
|
|
|
token_count -= 1;
|
|
|
|
if($(input).data("settings").tokenLimit !== null) {
|
|
input_box
|
|
.show()
|
|
.val("");
|
|
focus_with_timeout(input_box);
|
|
}
|
|
|
|
// Execute the onDelete callback if defined
|
|
if($.isFunction(callback)) {
|
|
callback.call(hidden_input,token_data);
|
|
}
|
|
}
|
|
|
|
// Update the hidden input box value
|
|
function update_hidden_input(saved_tokens, hidden_input) {
|
|
var token_values = $.map(saved_tokens, function (el) {
|
|
if(typeof $(input).data("settings").tokenValue == 'function')
|
|
return $(input).data("settings").tokenValue.call(this, el);
|
|
|
|
return el[$(input).data("settings").tokenValue];
|
|
});
|
|
hidden_input.val(token_values.join($(input).data("settings").tokenDelimiter));
|
|
|
|
}
|
|
|
|
// Hide and clear the results dropdown
|
|
function hide_dropdown () {
|
|
dropdown.hide().empty();
|
|
selected_dropdown_item = null;
|
|
}
|
|
|
|
function show_dropdown() {
|
|
dropdown
|
|
.css({
|
|
position: "absolute",
|
|
top: $(token_list).offset().top + $(token_list).height(),
|
|
left: $(token_list).offset().left,
|
|
width: $(token_list).width(),
|
|
'z-index': $(input).data("settings").zindex
|
|
})
|
|
.show();
|
|
}
|
|
|
|
function show_dropdown_searching () {
|
|
if($(input).data("settings").searchingText) {
|
|
dropdown.html("<p>" + escapeHTML($(input).data("settings").searchingText) + "</p>");
|
|
show_dropdown();
|
|
}
|
|
}
|
|
|
|
function show_dropdown_hint () {
|
|
if($(input).data("settings").hintText) {
|
|
dropdown.html("<p>" + escapeHTML($(input).data("settings").hintText) + "</p>");
|
|
show_dropdown();
|
|
}
|
|
}
|
|
|
|
var regexp_special_chars = new RegExp('[.\\\\+*?\\[\\^\\]$(){}=!<>|:\\-]', 'g');
|
|
function regexp_escape(term) {
|
|
return term.replace(regexp_special_chars, '\\$&');
|
|
}
|
|
|
|
// Highlight the query part of the search term
|
|
function highlight_term(value, term) {
|
|
return value.replace(
|
|
new RegExp(
|
|
"(?![^&;]+;)(?!<[^<>]*)(" + regexp_escape(term) + ")(?![^<>]*>)(?![^&;]+;)",
|
|
"gi"
|
|
), function(match, p1) {
|
|
return "<b>" + escapeHTML(p1) + "</b>";
|
|
}
|
|
);
|
|
}
|
|
|
|
function find_value_and_highlight_term(template, value, term) {
|
|
return template.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + regexp_escape(value) + ")(?![^<>]*>)(?![^&;]+;)", "g"), highlight_term(value, term));
|
|
}
|
|
|
|
// Populate the results dropdown with some results
|
|
function populate_dropdown (query, results) {
|
|
if(results && results.length) {
|
|
dropdown.empty();
|
|
var dropdown_ul = $("<ul>")
|
|
.appendTo(dropdown)
|
|
.mouseover(function (event) {
|
|
select_dropdown_item($(event.target).closest("li"));
|
|
})
|
|
.mousedown(function (event) {
|
|
add_token($(event.target).closest("li").data("tokeninput"));
|
|
hidden_input.change();
|
|
return false;
|
|
})
|
|
.hide();
|
|
|
|
if ($(input).data("settings").resultsLimit && results.length > $(input).data("settings").resultsLimit) {
|
|
results = results.slice(0, $(input).data("settings").resultsLimit);
|
|
}
|
|
|
|
$.each(results, function(index, value) {
|
|
var this_li = $(input).data("settings").resultsFormatter(value);
|
|
|
|
this_li = find_value_and_highlight_term(this_li ,value[$(input).data("settings").propertyToSearch], query);
|
|
|
|
this_li = $(this_li).appendTo(dropdown_ul);
|
|
|
|
if(index % 2) {
|
|
this_li.addClass($(input).data("settings").classes.dropdownItem);
|
|
} else {
|
|
this_li.addClass($(input).data("settings").classes.dropdownItem2);
|
|
}
|
|
|
|
if(index === 0) {
|
|
select_dropdown_item(this_li);
|
|
}
|
|
|
|
$.data(this_li.get(0), "tokeninput", value);
|
|
});
|
|
|
|
show_dropdown();
|
|
|
|
if($(input).data("settings").animateDropdown) {
|
|
dropdown_ul.slideDown("fast");
|
|
} else {
|
|
dropdown_ul.show();
|
|
}
|
|
} else {
|
|
if($(input).data("settings").noResultsText) {
|
|
dropdown.html("<p>" + escapeHTML($(input).data("settings").noResultsText) + "</p>");
|
|
show_dropdown();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Highlight an item in the results dropdown
|
|
function select_dropdown_item (item) {
|
|
if(item) {
|
|
if(selected_dropdown_item) {
|
|
deselect_dropdown_item($(selected_dropdown_item));
|
|
}
|
|
|
|
item.addClass($(input).data("settings").classes.selectedDropdownItem);
|
|
selected_dropdown_item = item.get(0);
|
|
}
|
|
}
|
|
|
|
// Remove highlighting from an item in the results dropdown
|
|
function deselect_dropdown_item (item) {
|
|
item.removeClass($(input).data("settings").classes.selectedDropdownItem);
|
|
selected_dropdown_item = null;
|
|
}
|
|
|
|
// Do a search and show the "searching" dropdown if the input is longer
|
|
// than $(input).data("settings").minChars
|
|
function do_search() {
|
|
var query = input_box.val();
|
|
|
|
if(query && query.length) {
|
|
if(selected_token) {
|
|
deselect_token($(selected_token), POSITION.AFTER);
|
|
}
|
|
|
|
if(query.length >= $(input).data("settings").minChars) {
|
|
show_dropdown_searching();
|
|
clearTimeout(timeout);
|
|
|
|
timeout = setTimeout(function(){
|
|
run_search(query);
|
|
}, $(input).data("settings").searchDelay);
|
|
} else {
|
|
hide_dropdown();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Do the actual search
|
|
function run_search(query) {
|
|
var cache_key = query + computeURL();
|
|
var cached_results = cache.get(cache_key);
|
|
if(cached_results) {
|
|
if ($.isFunction($(input).data("settings").onCachedResult)) {
|
|
cached_results = $(input).data("settings").onCachedResult.call(hidden_input, cached_results);
|
|
}
|
|
populate_dropdown(query, cached_results);
|
|
} else {
|
|
// Are we doing an ajax search or local data search?
|
|
if($(input).data("settings").url) {
|
|
var url = computeURL();
|
|
// Extract exisiting get params
|
|
var ajax_params = {};
|
|
ajax_params.data = {};
|
|
if(url.indexOf("?") > -1) {
|
|
var parts = url.split("?");
|
|
ajax_params.url = parts[0];
|
|
|
|
var param_array = parts[1].split("&");
|
|
$.each(param_array, function (index, value) {
|
|
var kv = value.split("=");
|
|
ajax_params.data[kv[0]] = kv[1];
|
|
});
|
|
} else {
|
|
ajax_params.url = url;
|
|
}
|
|
|
|
// Prepare the request
|
|
ajax_params.data[$(input).data("settings").queryParam] = query;
|
|
ajax_params.type = $(input).data("settings").method;
|
|
ajax_params.dataType = $(input).data("settings").contentType;
|
|
if($(input).data("settings").crossDomain) {
|
|
ajax_params.dataType = "jsonp";
|
|
}
|
|
|
|
// Attach the success callback
|
|
ajax_params.success = function(results) {
|
|
cache.add(cache_key, $(input).data("settings").jsonContainer ? results[$(input).data("settings").jsonContainer] : results);
|
|
if($.isFunction($(input).data("settings").onResult)) {
|
|
results = $(input).data("settings").onResult.call(hidden_input, results);
|
|
}
|
|
|
|
// only populate the dropdown if the results are associated with the active search query
|
|
if(input_box.val() === query) {
|
|
populate_dropdown(query, $(input).data("settings").jsonContainer ? results[$(input).data("settings").jsonContainer] : results);
|
|
}
|
|
};
|
|
|
|
// Make the request
|
|
$.ajax(ajax_params);
|
|
} else if($(input).data("settings").local_data) {
|
|
// Do the search through local data
|
|
var results = $.grep($(input).data("settings").local_data, function (row) {
|
|
return row[$(input).data("settings").propertyToSearch].toLowerCase().indexOf(query.toLowerCase()) > -1;
|
|
});
|
|
|
|
cache.add(cache_key, results);
|
|
if($.isFunction($(input).data("settings").onResult)) {
|
|
results = $(input).data("settings").onResult.call(hidden_input, results);
|
|
}
|
|
populate_dropdown(query, results);
|
|
}
|
|
}
|
|
}
|
|
|
|
// compute the dynamic URL
|
|
function computeURL() {
|
|
var url = $(input).data("settings").url;
|
|
if(typeof $(input).data("settings").url == 'function') {
|
|
url = $(input).data("settings").url.call($(input).data("settings"));
|
|
}
|
|
return url;
|
|
}
|
|
|
|
// Bring browser focus to the specified object.
|
|
// Use of setTimeout is to get around an IE bug.
|
|
// (See, e.g., http://stackoverflow.com/questions/2600186/focus-doesnt-work-in-ie)
|
|
//
|
|
// obj: a jQuery object to focus()
|
|
function focus_with_timeout(obj) {
|
|
setTimeout(function() { obj.focus(); }, 50);
|
|
}
|
|
|
|
};
|
|
|
|
// Really basic cache for the results
|
|
$.TokenList.Cache = function (options) {
|
|
var settings = $.extend({
|
|
max_size: 500
|
|
}, options);
|
|
|
|
var data = {};
|
|
var size = 0;
|
|
|
|
var flush = function () {
|
|
data = {};
|
|
size = 0;
|
|
};
|
|
|
|
this.add = function (query, results) {
|
|
if(size > settings.max_size) {
|
|
flush();
|
|
}
|
|
|
|
if(!data[query]) {
|
|
size += 1;
|
|
}
|
|
|
|
data[query] = results;
|
|
};
|
|
|
|
this.get = function (query) {
|
|
return data[query];
|
|
};
|
|
};
|
|
}(jQuery));
|
|
|