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+/**
+ DON'T MAKE AUTOMATIC UPGRADE
+ This is a merged version of :
+ + https://github.com/gr2m/jquery-tokeninput/
+ + https://github.com/mistic100/jquery-tokeninput/
+*/
+
+/*
+ * jQuery Plugin: Tokenizing Autocomplete Text Entry
+ * Version 1.4.2
+ *
+ * Copyright (c) 2009 James Smith (http://loopj.com)
+ * Licensed jointly under the GPL and MIT licenses,
+ * choose which one suits your project best!
+ *
+ */
+
+(function ($) {
+// Default settings
+var DEFAULT_SETTINGS = {
+ hintText: "Type in a search term",
+ noResultsText: "No results",
+ searchingText: "Searching...",
+ deleteText: "×",
+ searchDelay: 300,
+ minChars: 1,
+ tokenLimit: null,
+ jsonContainer: null,
+ method: "GET",
+ contentType: "json",
+ queryParam: "q",
+ tokenDelimiter: ",",
+ preventDuplicates: false,
+ prePopulate: null,
+ processPrePopulate: false,
+ animateDropdown: true,
+ onResult: null,
+ onAdd: null,
+ onDelete: null,
+ allowCreation: false
+};
+
+// Default classes to use when theming
+var DEFAULT_CLASSES = {
+ tokenList: "token-input-list",
+ token: "token-input-token",
+ tokenDelete: "token-input-delete-token",
+ selectedToken: "token-input-selected-token",
+ highlightedToken: "token-input-highlighted-token",
+ dropdown: "token-input-dropdown",
+ dropdownItem: "token-input-dropdown-item",
+ dropdownItem2: "token-input-dropdown-item2",
+ selectedDropdownItem: "token-input-selected-dropdown-item",
+ inputToken: "token-input-input-token"
+};
+
+// Input box position "enum"
+var POSITION = {
+ BEFORE: 0,
+ AFTER: 1,
+ END: 2
+};
+
+// Keys "enum"
+var KEY = {
+ BACKSPACE: 8,
+ TAB: 9,
+ ENTER: 13,
+ ESCAPE: 27,
+ SPACE: 32,
+ PAGE_UP: 33,
+ PAGE_DOWN: 34,
+ END: 35,
+ HOME: 36,
+ LEFT: 37,
+ UP: 38,
+ RIGHT: 39,
+ DOWN: 40,
+ NUMPAD_ENTER: 108,
+ COMMA: 188
+};
+
+
+// Expose the .tokenInput function to jQuery as a plugin
+$.fn.tokenInput = function (url_or_data, options) {
+ var settings = $.extend({}, DEFAULT_SETTINGS, options || {});
+
+ return this.each(function () {
+ new $.TokenList(this, url_or_data, settings);
+ });
+};
+
+
+// TokenList class for each input
+$.TokenList = function (input, url_or_data, settings) {
+ //
+ // Initialization
+ //
+
+ // Configure the data source
+ if(typeof(url_or_data) === "string") {
+ // Set the url to query against
+ settings.url = url_or_data;
+
+ // Make a smart guess about cross-domain if it wasn't explicitly specified
+ if(settings.crossDomain === undefined) {
+ if(settings.url.indexOf("://") === -1) {
+ settings.crossDomain = false;
+ } else {
+ settings.crossDomain = (location.href.split(/\/+/g)[1] !== settings.url.split(/\/+/g)[1]);
+ }
+ }
+ } else if(typeof(url_or_data) === "object") {
+ // Set the local data to search through
+ settings.local_data = url_or_data;
+ }
+
+ // Build class names
+ if(settings.classes) {
+ // Use custom class names
+ settings.classes = $.extend({}, DEFAULT_CLASSES, settings.classes);
+ } else if(settings.theme) {
+ // Use theme-suffixed default class names
+ settings.classes = {};
+ $.each(DEFAULT_CLASSES, function(key, value) {
+ settings.classes[key] = value + "-" + settings.theme;
+ });
+ } else {
+ settings.classes = DEFAULT_CLASSES;
+ }
+
+
+ // Save the tokens
+ var saved_tokens = [];
+
+ // Keep track of the number of tokens in the list
+ var token_count = 0;
+
+ // Basic cache to save on db hits
+ var cache = new $.TokenList.Cache();
+
+ // Keep track of the timeout, old vals
+ var timeout;
+ var input_val;
+
+ // Create a new text input an attach keyup events
+ var input_box = $("<input type=\"text\" autocomplete=\"off\">")
+ .css({
+ outline: "none"
+ })
+ .focus(function () {
+ if (settings.tokenLimit === null || settings.tokenLimit !== token_count) {
+ show_dropdown_hint();
+ }
+ })
+ .blur(function () {
+ hide_dropdown();
+ })
+ .bind("keyup keydown blur update", resize_input)
+ .keydown(function (event) {
+ var previous_token;
+ var next_token;
+
+ switch(event.keyCode) {
+ case KEY.LEFT:
+ case KEY.RIGHT:
+ case KEY.UP:
+ case KEY.DOWN:
+ if(!$(this).val()) {
+ previous_token = input_token.prev();
+ next_token = input_token.next();
+
+ if((previous_token.length && previous_token.get(0) === selected_token) || (next_token.length && next_token.get(0) === selected_token)) {
+ // Check if there is a previous/next token and it is selected
+ if(event.keyCode === KEY.LEFT || event.keyCode === KEY.UP) {
+ deselect_token($(selected_token), POSITION.BEFORE);
+ } else {
+ deselect_token($(selected_token), POSITION.AFTER);
+ }
+ } else if((event.keyCode === KEY.LEFT || event.keyCode === KEY.UP) && previous_token.length) {
+ // We are moving left, select the previous token if it exists
+ select_token($(previous_token.get(0)));
+ } else if((event.keyCode === KEY.RIGHT || event.keyCode === KEY.DOWN) && next_token.length) {
+ // We are moving right, select the next token if it exists
+ select_token($(next_token.get(0)));
+ }
+ } else {
+ var dropdown_item = null;
+
+ if(event.keyCode === KEY.DOWN || event.keyCode === KEY.RIGHT) {
+ dropdown_item = $(selected_dropdown_item).next();
+ } else {
+ dropdown_item = $(selected_dropdown_item).prev();
+ }
+
+ if(dropdown_item.length) {
+ select_dropdown_item(dropdown_item);
+ }
+ return false;
+ }
+ break;
+
+ case KEY.BACKSPACE:
+ previous_token = input_token.prev();
+
+ if(!$(this).val().length) {
+ if(selected_token) {
+ delete_token($(selected_token));
+ } else if(previous_token.length) {
+ select_token($(previous_token.get(0)));
+ }
+
+ return false;
+ } else if($(this).val().length === 1) {
+ hide_dropdown();
+ } else {
+ // set a timeout just long enough to let this function finish.
+ setTimeout(function(){do_search();}, 5);
+ }
+ break;
+
+ case KEY.TAB:
+ case KEY.ENTER:
+ case KEY.NUMPAD_ENTER:
+ case KEY.COMMA:
+ if(selected_dropdown_item) {
+ add_token($(selected_dropdown_item));
+ return false;
+ }
+ break;
+
+ case KEY.ESCAPE:
+ hide_dropdown();
+ return true;
+
+ default:
+ if(String.fromCharCode(event.which)) {
+ // set a timeout just long enough to let this function finish.
+ setTimeout(function(){do_search();}, 5);
+ }
+ break;
+ }
+ });
+
+ if ($(input).get(0).tagName == 'SELECT') {
+ // Create a new input to store selected tokens, original will be delete later
+ var hidden_input = $("<input type=\"text\" name=\"" + $(input).attr('name') + "\" autocomplete=\"off\">")
+ .hide()
+ .val("")
+ .focus(function () {
+ input_box.focus();
+ })
+ .blur(function () {
+ input_box.blur();
+ })
+ .insertBefore(input);
+ } else {
+ // Keep a reference to the original input box
+ var hidden_input = $(input)
+ .hide()
+ .val("")
+ .focus(function () {
+ input_box.focus();
+ })
+ .blur(function () {
+ input_box.blur();
+ });
+ }
+
+ // Keep a reference to the selected token and dropdown item
+ var selected_token = null;
+ var selected_token_index = 0;
+ var selected_dropdown_item = null;
+
+ // The list to store the token items in
+ var token_list = $("<ul />")
+ .addClass(settings.classes.tokenList)
+ .click(function (event) {
+ var li = $(event.target).closest("li");
+ if(li && li.get(0) && $.data(li.get(0), "tokeninput")) {
+ toggle_select_token(li);
+ } else {
+ // Deselect selected token
+ if(selected_token) {
+ deselect_token($(selected_token), POSITION.END);
+ }
+
+ // Focus input box
+ input_box.focus();
+ }
+ })
+ .mouseover(function (event) {
+ var li = $(event.target).closest("li");
+ if(li && selected_token !== this) {
+ li.addClass(settings.classes.highlightedToken);
+ }
+ })
+ .mouseout(function (event) {
+ var li = $(event.target).closest("li");
+ if(li && selected_token !== this) {
+ li.removeClass(settings.classes.highlightedToken);
+ }
+ })
+ .insertBefore(hidden_input);
+
+ // The token holding the input box
+ var input_token = $("<li />")
+ .addClass(settings.classes.inputToken)
+ .appendTo(token_list)
+ .append(input_box);
+
+ // The list to store the dropdown items in
+ var dropdown = $("<div>")
+ .addClass(settings.classes.dropdown)
+ .appendTo("body")
+ .hide();
+
+ // Magic element to help us resize the text input
+ var input_resizer = $("<tester/>")
+ .insertAfter(input_box)
+ .css({
+ position: "absolute",
+ top: -9999,
+ left: -9999,
+ width: "auto",
+ fontSize: input_box.css("fontSize"),
+ fontFamily: input_box.css("fontFamily"),
+ fontWeight: input_box.css("fontWeight"),
+ letterSpacing: input_box.css("letterSpacing"),
+ whiteSpace: "nowrap"
+ });
+
+ // Pre-populate list if items exist
+ hidden_input.val("");
+ var li_data = settings.prePopulate || hidden_input.data("pre");
+ if(settings.processPrePopulate && $.isFunction(settings.onResult)) {
+ li_data = settings.onResult.call(hidden_input, li_data);
+ }
+ if(li_data && li_data.length) {
+ $.each(li_data, function (index, value) {
+ insert_token(value.id, value.name);
+ });
+ }
+
+ // Pre-populate from SELECT options
+ if ($(input).get(0).tagName == 'SELECT') {
+ $(input).children('option').each(function () {
+ insert_token($(this).attr('value'), $(this).text());
+ });
+ }
+
+
+
+ //
+ // Private functions
+ //
+
+ function resize_input() {
+ if(input_val === (input_val = input_box.val())) {return;}
+
+ // Enter new content into resizer and resize input accordingly
+ var escaped = input_val.replace(/&/g, '&amp;').replace(/\s/g,' ').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+ input_resizer.html(escaped);
+ input_box.width(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)); // ( \ ) '
+ }
+
+ // Inner function to a token to the list
+ function insert_token(id, value) {
+ var this_token = $("<li><p>"+ value +"</p></li>")
+ .addClass(settings.classes.token)
+ .insertBefore(input_token);
+
+ // The 'delete token' button
+ $("<span>" + settings.deleteText + "</span>")
+ .addClass(settings.classes.tokenDelete)
+ .appendTo(this_token)
+ .click(function () {
+ delete_token($(this).parent());
+ return false;
+ });
+
+ // Store data on the token
+ var token_data = {"id": id, "name": value};
+ $.data(this_token.get(0), "tokeninput", token_data);
+
+ // 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
+ var token_ids = $.map(saved_tokens, function (el) {
+ return el.id;
+ });
+ hidden_input.val(token_ids.join(settings.tokenDelimiter));
+
+ token_count += 1;
+
+ return this_token;
+ }
+
+ // Add a token to the token list based on user input
+ function add_token (item) {
+ var li_data = $.data(item.get(0), "tokeninput");
+ var callback = settings.onAdd;
+
+ // 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 = $.data(existing_token.get(0), "tokeninput");
+ if(existing_data && existing_data.id === li_data.id) {
+ found_existing_token = existing_token;
+ return false;
+ }
+ });
+
+ if(found_existing_token) {
+ select_token(found_existing_token);
+ input_token.insertAfter(found_existing_token);
+ input_box.focus();
+ return;
+ }
+ }
+
+ // Insert the new tokens
+ insert_token(li_data.id, li_data.name);
+
+ // Check the token limit
+ if(settings.tokenLimit !== null && token_count >= settings.tokenLimit) {
+ input_box.hide();
+ hide_dropdown();
+ return;
+ } else {
+ input_box.focus();
+ }
+
+ // Clear input box
+ input_box.val("");
+
+ // Don't show the help dropdown, they've got the idea
+ hide_dropdown();
+
+ // Execute the onAdd callback if defined
+ if($.isFunction(callback)) {
+ callback.call(hidden_input,li_data);
+ }
+ }
+
+ // 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;
+ }
+
+ // Show the input box and give it focus again
+ input_box.focus();
+ }
+
+ // 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 = 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
+ input_box.focus();
+
+ // 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
+ var token_ids = $.map(saved_tokens, function (el) {
+ return el.id;
+ });
+ hidden_input.val(token_ids.join(settings.tokenDelimiter));
+
+ token_count -= 1;
+
+ if(settings.tokenLimit !== null) {
+ input_box
+ .show()
+ .val("")
+ .focus();
+ }
+
+ // Execute the onDelete callback if defined
+ if($.isFunction(callback)) {
+ callback.call(hidden_input,token_data);
+ }
+ }
+
+ // 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).outerHeight(),
+ left: $(token_list).offset().left,
+ zindex: 999
+ })
+ .show();
+ }
+
+ 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) {
+ return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<b>$1</b>");
+ }
+
+ // 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"));
+ return false;
+ })
+ .hide();
+
+ $.each(results, function(index, value) {
+ var this_li = $("<li>" + highlight_term(value.name, query) + "</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);
+ }
+
+ $.data(this_li.get(0), "tokeninput", {"id": value.id, "name": value.name});
+ });
+
+ show_dropdown();
+
+ if(settings.animateDropdown) {
+ dropdown_ul.slideDown("fast");
+ } else {
+ dropdown_ul.show();
+ }
+ } else {
+ if(settings.noResultsText) {
+ dropdown.html("<p>"+settings.noResultsText+"</p>");
+ show_dropdown();
+ }
+ }
+ }
+
+ // Highlight an item in the results dropdown
+ function select_dropdown_item (item) {
+ if(item) {
+ if(selected_dropdown_item) {
+ deselect_dropdown_item($(selected_dropdown_item));
+ }
+
+ item.addClass(settings.classes.selectedDropdownItem);
+ selected_dropdown_item = item.get(0);
+ }
+ }
+
+ // 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().toLowerCase();
+
+ if(query && query.length) {
+ if(selected_token) {
+ deselect_token($(selected_token), POSITION.AFTER);
+ }
+
+ if(query.length >= settings.minChars) {
+ show_dropdown_searching();
+ clearTimeout(timeout);
+
+ timeout = setTimeout(function(){
+ run_search(query);
+ }, settings.searchDelay);
+ } else {
+ hide_dropdown();
+ }
+ }
+ }
+
+ // Do the actual search
+ function run_search(query) {
+ var cached_results = cache.get(query);
+ if(cached_results) {
+ populate_dropdown(query, cached_results);
+ } else {
+ // Are we doing an ajax search or local data search?
+ if(settings.url) {
+ // Extract exisiting get params
+ var ajax_params = {};
+ ajax_params.data = {};
+ if(settings.url.indexOf("?") > -1) {
+ var parts = settings.url.split("?");
+ ajax_params.url = parts[0];
+
+ var param_array = parts[1].split("&");
+ $.each(param_array, function (index, value) {
+ var kv = value.split("=");
+ ajax_params.data[kv[0]] = kv[1];
+ });
+ } else {
+ ajax_params.url = settings.url;
+ }
+
+ // Prepare the request
+ ajax_params.data[settings.queryParam] = query;
+ ajax_params.type = settings.method;
+ ajax_params.dataType = settings.contentType;
+ if(settings.crossDomain) {
+ ajax_params.dataType = "jsonp";
+ }
+
+ // Attach the success callback
+ ajax_params.success = function(results) {
+ if($.isFunction(settings.onResult)) {
+ results = settings.onResult.call(hidden_input, results);
+ }
+
+ if(settings.allowCreation) {
+ results.push({name: input_box.val() + ' (new)', id: input_box.val()});
+ }
+ cache.add(query, settings.jsonContainer ? results[settings.jsonContainer] : results);
+
+ // only populate the dropdown if the results are associated with the active search query
+ if(input_box.val().toLowerCase() === query) {
+ populate_dropdown(query, settings.jsonContainer ? results[settings.jsonContainer] : results);
+ }
+ };
+
+ // Make the request
+ $.ajax(ajax_params);
+ } else if(settings.local_data) {
+ // Do the search through local data
+ var results = $.grep(settings.local_data, function (row) {
+ return row.name.toLowerCase().indexOf(query.toLowerCase()) > -1;
+ });
+
+ if($.isFunction(settings.onResult)) {
+ results = settings.onResult.call(hidden_input, results);
+ }
+
+ if(settings.allowCreation) {
+ results.push({name: input_box.val() + ' (new)', id: input_box.val()});
+ }
+
+ cache.add(query, results);
+
+ populate_dropdown(query, results);
+ }
+ }
+ }
+
+ if ($(input).get(0).tagName == 'SELECT') {
+ $(input).remove();
+ }
+};
+
+// Really basic cache for the results
+$.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));