1031 lines
36 KiB
JavaScript
1031 lines
36 KiB
JavaScript
/*
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* jQuery Plugin: Tokenizing Autocomplete Text Entry
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* Version 1.6.0
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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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contentType: "json",
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queryParam: "q",
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duplicatesParam: "d",
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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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searchAlgorithm: 'global',
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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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addNewIcon: "/images/backend/beta/icons/22x22/add.png",
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addNewText: "dodaj",
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createNew: false,
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deleteText: "×",
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animateDropdown: true,
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// Tokenization settings
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tokenLimit: null,
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tokenDelimiter: ",",
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propertyNew: "new",
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preventDuplicates: false,
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// Output settings
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tokenValue: "id",
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// Prepopulation settings
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prePopulate: null,
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processPrePopulate: false,
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additionalDataFields: [],
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// Manipulation settings
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idPrefix: "token-input-",
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// Formatters
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newResultsFormatter: function (item) { return "<li>" + this.addNewIcon + " <span style=\"vertical-align: middle\">" + this.addNewText + ": <b>" + item[this.propertyToSearch] + "</b></span></li>" },
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newTokenFormatter: function (item) { return "<li><p>" + item[this.propertyToSearch] + "</p></li>" },
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resultsFormatter: function (item) { return "<li>" + item[this.propertyToSearch] + "</li>" },
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tokenFormatter: function (item) { return "<li><p>" + item[this.propertyToSearch] + "</p></li>" },
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savedTokens: {},
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// Callbacks
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onResult: null,
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onAdd: null,
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onDelete: null,
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onReady: null,
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onBeforeAdd: null
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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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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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};
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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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// 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("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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updateTokens: function () {
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this.data("tokenInputObject").updateTokens();
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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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highlightTerm: function (value, term) {
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return this.data("tokenInputObject").highlightTerm(value, term);
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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 (typeof (url_or_data) === "string" || typeof (url_or_data) === "function") {
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// Set the url to query against
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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 (settings.crossDomain === undefined) {
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if (url.indexOf("://") === -1) {
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settings.crossDomain = false;
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} else {
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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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settings.local_data = url_or_data;
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}
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// Build class names
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if (settings.classes) {
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// Use custom class names
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settings.classes = $.extend({}, DEFAULT_CLASSES, settings.classes);
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} else if (settings.theme) {
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// Use theme-suffixed default class names
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settings.classes = {};
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$.each(DEFAULT_CLASSES, function (key, value) {
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settings.classes[key] = value + "-" + settings.theme;
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});
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} else {
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settings.classes = DEFAULT_CLASSES;
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}
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var token_input = this;
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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 = $("<input type=\"text\" autocomplete=\"off\">")
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if (settings.prePopulate && settings.prePopulate.length > 0) {
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input_box.css({ display: 'none' });
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}
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input_box.css({
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outline: "none",
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})
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.attr("id", settings.idPrefix + input.id)
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.focus(function (event) {
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if (settings.tokenLimit === null || settings.tokenLimit !== token_count) {
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$(this).show();
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}
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event.stopPropagation();
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})
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.blur(function () {
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hide_dropdown();
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input_box.val("");
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// if (saved_tokens.length > 0) {
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// input_box.hide();
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// }
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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.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 = $(selected_dropdown_item).prev();
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}
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if (dropdown_item.length) {
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select_dropdown_item(dropdown_item);
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}
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return false;
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}
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break;
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case KEY.BACKSPACE:
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previous_token = input_token.prev();
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if (!$(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 ($(this).val().length === 1) {
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hide_dropdown();
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} else {
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// set a timeout just long enough to let this function finish.
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setTimeout(function () { do_search(); }, 5);
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}
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break;
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case KEY.TAB:
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case KEY.ENTER:
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case KEY.NUMPAD_ENTER:
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if (selected_dropdown_item) {
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add_token($(selected_dropdown_item).data("tokeninput"));
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hidden_input.change();
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return false;
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}
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break;
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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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if (selected_token) {
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deselect_token($(selected_token), POSITION.END);
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input_box.focus();
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}
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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 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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input_box.focus();
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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 = $("<ul />")
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.addClass(settings.classes.tokenList)
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.click(function (event) {
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// Deselect selected token
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if (selected_token) {
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deselect_token($(selected_token), POSITION.END);
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}
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if (!settings.local_data && (settings.tokenLimit === null || settings.tokenLimit !== token_count)) {
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show_dropdown_hint();
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}
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else if (settings.local_data && (settings.tokenLimit === null || settings.tokenLimit !== token_count)) {
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run_search(null);
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}
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// Focus input box
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input_box.focus();
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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(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(settings.classes.highlightedToken);
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}
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})
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.keypress(function (event) {
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if (event.ctrlKey && event.which == 99) {
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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(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(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 = settings.prePopulate || hidden_input.data("pre");
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if (settings.processPrePopulate && $.isFunction(settings.onResult)) {
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li_data = settings.onResult.call(hidden_input, li_data);
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}
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if (li_data && li_data.length) {
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$.each(li_data, function (index, value) {
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insert_token(value);
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checkTokenLimit();
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});
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}
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// Initialization is done
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if ($.isFunction(settings.onReady)) {
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settings.onReady.call();
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}
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//
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// Public functions
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//
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this.clear = function () {
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token_list.children("li").each(function () {
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if (!$(this).hasClass(settings.classes.inputToken)) {
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delete_token($(this));
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}
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});
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//input_box.focus();
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saved_tokens = [];
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token_count = 0;
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selected_token_index = 0;
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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.updateTokens = function () {
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saved_tokens = [];
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token_list.children().each(function () {
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var data = $(this).data('tokeninput');
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if (data) {
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var token = { id: data.id };
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token[settings.propertyToSearch] = data[settings.propertyToSearch];
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$.each(settings.additionalDataFields, function (index, value) {
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token[value] = data[value];
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});
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if (data[settings.propertyNew]) {
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token[settings.propertyNew] = true;
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}
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saved_tokens.push(token);
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}
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});
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update_hidden_input(saved_tokens, hidden_input);
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}
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this.remove = function (item) {
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token_list.children("li." + settings.classes.token).each(function () {
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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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this.getTokens = function () {
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return saved_tokens;
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}
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this.highlightTerm = function (value, term) {
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return highlight_term(value, term);
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}
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//
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// Private functions
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//
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function checkTokenLimit() {
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if (settings.tokenLimit !== null && token_count >= 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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function resize_input() {
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if (input_val === (input_val = input_box.val())) { return; }
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// Enter new content into resizer and resize input accordingly
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var escaped = input_val.replace(/&/g, '&').replace(/\s/g, ' ').replace(/</g, '<').replace(/>/g, '>');
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input_resizer.html(escaped);
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input_box.width(input_resizer.width() + 30);
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}
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function is_printable_character(keycode) {
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return ((keycode >= 48 && keycode <= 90) || // 0-1a-z
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(keycode >= 96 && keycode <= 111) || // numpad 0-9 + - / * .
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(keycode >= 186 && keycode <= 192) || // ; = , - . / ^
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(keycode >= 219 && keycode <= 222)); // ( \ ) '
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}
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// Inner function to a token to the list
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function insert_token(item) {
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if (item.id == undefined) {
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item[settings.propertyToSearch] = input_box.val();
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item[settings.tokenValue] = item[settings.propertyToSearch];
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item[settings.propertyNew] = true;
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}
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var this_token = item[settings.propertyNew] ? settings.newTokenFormatter(item) : settings.tokenFormatter(item);
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this_token = $(this_token)
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.addClass(settings.classes.token)
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.insertBefore(input_token);
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// The 'delete token' button
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$("<span>" + settings.deleteText + "</span>")
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.addClass(settings.classes.tokenDelete)
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.appendTo(this_token)
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.click(function (event) {
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delete_token($(this).parent());
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hidden_input.change();
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input_box.focus();
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event.preventDefault();
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event.stopPropagation();
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});
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// Store data on the token
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var token_data = {};
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token_data[settings.tokenValue] = item[settings.tokenValue];
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token_data[settings.propertyToSearch] = item[settings.propertyToSearch];
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$.each(settings.additionalDataFields, function (index, value) {
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token_data[value] = item[value];
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});
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if (item.new !== undefined) {
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token_data[settings.propertyNew] = true;
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}
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$.data(this_token.get(0), "tokeninput", item);
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// Save this token for duplicate checking
|
|
saved_tokens = saved_tokens.slice(0, selected_token_index).concat([token_data]).concat(saved_tokens.slice(selected_token_index));
|
|
selected_token_index++;
|
|
|
|
// Update the hidden input
|
|
update_hidden_input(saved_tokens, hidden_input);
|
|
|
|
token_count += 1;
|
|
|
|
// Check the token limit
|
|
if (settings.tokenLimit !== null && token_count >= settings.tokenLimit) {
|
|
input_box.hide();
|
|
hide_dropdown();
|
|
}
|
|
|
|
return this_token;
|
|
}
|
|
|
|
// Add a token to the token list based on user input
|
|
function add_token(item) {
|
|
cache.flush();
|
|
|
|
var callback = settings.onBeforeAdd;
|
|
|
|
if ($.isFunction(callback)) {
|
|
callback.call(input, item);
|
|
}
|
|
|
|
// See if the token already exists and select it if we don't want duplicates
|
|
if (token_count > 0 && settings.preventDuplicates) {
|
|
var found_existing_token = null;
|
|
token_list.children().each(function () {
|
|
var existing_token = $(this);
|
|
var existing_data = $.data(existing_token.get(0), "tokeninput");
|
|
if (existing_data && existing_data.id === item.id) {
|
|
found_existing_token = existing_token;
|
|
return false;
|
|
}
|
|
});
|
|
|
|
if (found_existing_token) {
|
|
select_token(found_existing_token);
|
|
input_token.insertAfter(found_existing_token);
|
|
input_box.focus();
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Insert the new tokens
|
|
if (settings.tokenLimit == null || token_count < settings.tokenLimit) {
|
|
insert_token(item);
|
|
checkTokenLimit();
|
|
}
|
|
|
|
// Clear input box
|
|
input_box.val("");
|
|
|
|
// Don't show the help dropdown, they've got the idea
|
|
hide_dropdown();
|
|
|
|
// Execute the onAdd callback if defined
|
|
var callback = settings.onAdd;
|
|
|
|
if ($.isFunction(callback)) {
|
|
callback.call(hidden_input, item);
|
|
}
|
|
}
|
|
|
|
// Select a token in the token list
|
|
function select_token(token) {
|
|
token.addClass(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(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;
|
|
}
|
|
}
|
|
|
|
// 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) {
|
|
cache.flush();
|
|
// Remove the id from the saved list
|
|
var token_data = $.data(token.get(0), "tokeninput");
|
|
var callback = settings.onDelete;
|
|
|
|
var index = token.prevAll().length;
|
|
if (index > selected_token_index) index--;
|
|
|
|
// Delete the token
|
|
token.remove();
|
|
selected_token = null;
|
|
|
|
// Remove this token from the saved list
|
|
saved_tokens = saved_tokens.slice(0, index).concat(saved_tokens.slice(index + 1));
|
|
if (index < selected_token_index) selected_token_index--;
|
|
|
|
// Update the hidden input
|
|
update_hidden_input(saved_tokens, hidden_input);
|
|
|
|
token_count -= 1;
|
|
|
|
if (settings.tokenLimit !== null || token_count <= 0) {
|
|
input_box
|
|
.show()
|
|
.val("");
|
|
}
|
|
|
|
// Execute the onDelete callback if defined
|
|
if ($.isFunction(callback)) {
|
|
callback.call(hidden_input, token_data);
|
|
}
|
|
}
|
|
|
|
// Update the hidden input box value
|
|
function update_hidden_input(saved_tokens, hidden_input) {
|
|
|
|
settings.savedTokens = {};
|
|
|
|
$.each(saved_tokens, function (index, el) {
|
|
let val = el[settings.tokenValue];
|
|
settings.savedTokens[val] = true;
|
|
});
|
|
|
|
hidden_input.val(JSON.stringify(saved_tokens));
|
|
}
|
|
|
|
// Hide and clear the results dropdown
|
|
function hide_dropdown() {
|
|
dropdown.hide().empty();
|
|
selected_dropdown_item = null;
|
|
}
|
|
|
|
function show_dropdown() {
|
|
setTimeout(function () {
|
|
dropdown
|
|
.css({
|
|
position: "absolute",
|
|
top: $(token_list).offset().top + $(token_list).outerHeight(),
|
|
left: $(token_list).offset().left,
|
|
zindex: 999
|
|
})
|
|
.show();
|
|
}, 1);
|
|
}
|
|
|
|
function show_dropdown_searching() {
|
|
if (settings.searchingText) {
|
|
dropdown.html("<p>" + settings.searchingText + "</p>");
|
|
show_dropdown();
|
|
}
|
|
}
|
|
|
|
function show_dropdown_hint() {
|
|
if (settings.hintText) {
|
|
dropdown.html("<p>" + settings.hintText + "</p>");
|
|
show_dropdown();
|
|
}
|
|
}
|
|
|
|
// Highlight the query part of the search term
|
|
function highlight_term(value, term) {
|
|
|
|
if (term) {
|
|
term = term.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
|
|
}
|
|
|
|
if (settings.searchAlgorithm == 'global') {
|
|
return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<b>$1</b>");
|
|
}
|
|
else if (settings.searchAlgorithm == 'first') {
|
|
return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(^" + term + ")(?![^<>]*>)(?![^&;]+;)", "i"), "<b>$1</b>");
|
|
}
|
|
}
|
|
|
|
function find_value_and_highlight_term(template, value, term) {
|
|
var regex_value = value.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
|
|
return template.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + regex_value + ")(?![^<>]*>)(?![^&;]+;)", "g"), highlight_term(value, term));
|
|
}
|
|
|
|
// Populate the results dropdown with some results
|
|
function populate_dropdown(query, results) {
|
|
var new_item = true;
|
|
|
|
if (settings.createNew && query && !settings.savedTokens[query.toLowerCase()]) {
|
|
$.each(results, function (index, value) {
|
|
if (value[settings.propertyToSearch].toLowerCase() == query.toLowerCase()) {
|
|
new_item = false;
|
|
}
|
|
});
|
|
|
|
if (new_item) {
|
|
var item = {};
|
|
item[settings.propertyNew] = true;
|
|
item[settings.propertyToSearch] = query;
|
|
results = [item].concat(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();
|
|
|
|
$.each(results, function (index, value) {
|
|
var this_li = value[settings.propertyNew] && index == 0 ? settings.newResultsFormatter(value, token_input, query) : settings.resultsFormatter(value, token_input, query);
|
|
|
|
this_li = find_value_and_highlight_term(this_li, value[settings.propertyToSearch], query);
|
|
|
|
this_li = $(this_li).appendTo(dropdown_ul);
|
|
|
|
if (index % 2) {
|
|
this_li.addClass(settings.classes.dropdownItem);
|
|
} else {
|
|
this_li.addClass(settings.classes.dropdownItem2);
|
|
}
|
|
|
|
if (index === 0) {
|
|
select_dropdown_item(this_li);
|
|
}
|
|
|
|
$.data(this_li.get(0), "tokeninput", value);
|
|
});
|
|
|
|
show_dropdown();
|
|
|
|
if (settings.animateDropdown) {
|
|
dropdown_ul.slideDown("fast");
|
|
} else {
|
|
dropdown_ul.show();
|
|
}
|
|
} else {
|
|
if (settings.noResultsText) {
|
|
dropdown.html("<p>" + settings.noResultsText + "</p>");
|
|
show_dropdown();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Highlight an item in the results dropdown
|
|
function select_dropdown_item(item) {
|
|
if (item) {
|
|
if (selected_dropdown_item) {
|
|
deselect_dropdown_item($(selected_dropdown_item));
|
|
}
|
|
|
|
item.addClass(settings.classes.selectedDropdownItem);
|
|
selected_dropdown_item = item.get(0);
|
|
var token_data = item.data("tokeninput");
|
|
|
|
if (token_data && (token_data[settings.tokenValue] != undefined || token_data[settings.propertyNew] != undefined)) {
|
|
input_box.val(token_data[settings.propertyToSearch]);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
// Remove highlighting from an item in the results dropdown
|
|
function deselect_dropdown_item(item) {
|
|
item.removeClass(settings.classes.selectedDropdownItem);
|
|
selected_dropdown_item = null;
|
|
}
|
|
|
|
// Do a search and show the "searching" dropdown if the input is longer
|
|
// than settings.minChars
|
|
function do_search() {
|
|
var query = input_box.val().trim();
|
|
|
|
if (query && query.length) {
|
|
if (selected_token) {
|
|
deselect_token($(selected_token), POSITION.AFTER);
|
|
}
|
|
|
|
if (query.length >= settings.minChars) {
|
|
if (settings.url) {
|
|
show_dropdown_searching();
|
|
clearTimeout(timeout);
|
|
|
|
timeout = setTimeout(function () {
|
|
run_search(query);
|
|
}, settings.searchDelay);
|
|
} else {
|
|
run_search(query);
|
|
}
|
|
|
|
|
|
} else {
|
|
hide_dropdown();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Do the actual search
|
|
function run_search(query) {
|
|
|
|
var cache_key = query ? query.toLowerCase() + computeURL() : computeURL();
|
|
var cached_results = cache.get(cache_key);
|
|
if (cached_results) {
|
|
populate_dropdown(query, cached_results);
|
|
} else {
|
|
// Are we doing an ajax search or local data search?
|
|
if (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[settings.queryParam] = query;
|
|
if (settings.preventDuplicates && hidden_input.val()) {
|
|
var tokens = $.parseJSON(hidden_input.val());
|
|
var duplicates = [];
|
|
|
|
$.each(tokens, function () {
|
|
duplicates.push(this[settings.tokenValue]);
|
|
});
|
|
|
|
ajax_params.data[settings.duplicatesParam] = duplicates.join();
|
|
}
|
|
ajax_params.type = settings.method;
|
|
ajax_params.dataType = settings.contentType;
|
|
if (settings.crossDomain) {
|
|
ajax_params.dataType = "jsonp";
|
|
}
|
|
|
|
// Attach the success callback
|
|
ajax_params.success = function (results) {
|
|
if (settings.jsonContainer) {
|
|
results = results[settings.jsonContainer];
|
|
}
|
|
|
|
if ($.isFunction(settings.onResult)) {
|
|
results = settings.onResult.call(hidden_input, results);
|
|
}
|
|
|
|
cache.add(cache_key, results);
|
|
|
|
// only populate the dropdown if the results are associated with the active search query
|
|
if (input_box.val().toLowerCase() === query.toLowerCase()) {
|
|
populate_dropdown(query, results);
|
|
}
|
|
};
|
|
|
|
// Make the request
|
|
$.ajax(ajax_params);
|
|
} else if (settings.local_data) {
|
|
// Do the search through local data
|
|
|
|
var results = $.grep(settings.local_data, function (row) {
|
|
let tokenCacheIndex = typeof row[settings.tokenValue] === 'string' ? row[settings.tokenValue].toLowerCase() : row[settings.tokenValue];
|
|
if (settings.savedTokens[tokenCacheIndex]) {
|
|
return false;
|
|
}
|
|
|
|
if (query === null) {
|
|
return true;
|
|
}
|
|
|
|
var value = row[settings.propertyToSearch].toLowerCase();
|
|
|
|
if (settings.searchAlgorithm == 'global') {
|
|
return value.indexOf(query.toLowerCase()) > -1;
|
|
}
|
|
else if (settings.searchAlgorithm == 'first') {
|
|
return value.indexOf(query.toLowerCase()) == 0;
|
|
}
|
|
});
|
|
|
|
if ($.isFunction(settings.onResult)) {
|
|
results = settings.onResult.call(hidden_input, results);
|
|
}
|
|
|
|
cache.add(cache_key, results);
|
|
populate_dropdown(query, results);
|
|
}
|
|
}
|
|
}
|
|
|
|
// compute the dynamic URL
|
|
function computeURL() {
|
|
var url = settings.url;
|
|
if (typeof settings.url == 'function') {
|
|
url = settings.url.call();
|
|
}
|
|
return url;
|
|
}
|
|
};
|
|
|
|
// Really basic cache for the results
|
|
$.TokenList.Cache = function (options) {
|
|
var settings = $.extend({
|
|
max_size: 500
|
|
}, options);
|
|
|
|
var data = {};
|
|
var size = 0;
|
|
|
|
this.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));
|