sfraise Posted December 1, 2010 Share Posted December 1, 2010 I'm working on an autocomplete script and have it working close to what I need, however I have an issues. I need to be able to pass a new value to the hidden field input, as it is now only selected values from the auto suggestions get's passed. I'm guessing I need to create some type of onchange or onclick event to do it but I'm not 100% sure how to go about it correctly. My first thought here is I should add a small + icon when clicked will add the new value. Here's the script I'm using: /* * jQuery Plugin: Tokenizing Autocomplete Text Entry * Version 1.1 * * Copyright (c) 2009 James Smith (http://loopj.com) * Licensed jointly under the GPL and MIT licenses, * choose which one suits your project best! * */ (function($) { $.fn.tokenInput = function (url, options) { var settings = $.extend({ url: url, hintText: "Type in a search term", noResultsText: "No results", searchingText: "Searching...", searchDelay: 300, minChars: 1, tokenLimit: null, jsonContainer: null, method: "GET", contentType: "json", queryParam: "q", onResult: null }, options); settings.classes = $.extend({ 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" }, options.classes); return this.each(function () { var list = new $.TokenList(this, settings); }); }; $.TokenList = function (input, settings) { // // Variables // // Input box position "enum" var POSITION = { BEFORE: 0, AFTER: 1, END: 2 }; // Keys "enum" var KEY = { BACKSPACE: 8, TAB: 9, RETURN: 13, ESC: 27, LEFT: 37, UP: 38, RIGHT: 39, DOWN: 40, COMMA: 188 }; // 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 var timeout; // Create a new text input an attach keyup events var input_box = $("<input type=\"text\">") .css({ outline: "none" }) .focus(function () { if (settings.tokenLimit == null || settings.tokenLimit != token_count) { show_dropdown_hint(); } }) .blur(function () { hide_dropdown(); }) .keydown(function (event) { var previous_token; var next_token; switch(event.keyCode) { case KEY.LEFT: case KEY.RIGHT: case KEY.UP: case KEY.DOWN: if(!$(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($(this).val().length == 1) { hide_dropdown(); } else { // set a timeout just long enough to let this function finish. setTimeout(function(){do_search(false);}, 5); } break; case KEY.TAB: case KEY.RETURN: case KEY.COMMA: if(selected_dropdown_item) { add_token($(selected_dropdown_item)); return false; } break; case KEY.ESC: hide_dropdown(); return true; default: if(is_printable_character(event.keyCode)) { // set a timeout just long enough to let this function finish. setTimeout(function(){do_search(false);}, 5); } break; } }); // Keep a reference to the original input box var hidden_input = $(input) .hide() .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_dropdown_item = null; // The list to store the token items in var token_list = $("<ul />") .addClass(settings.classes.tokenList) .insertAfter(hidden_input) .click(function (event) { var li = get_element_from_event(event, "li"); if(li && li.get(0) != input_token.get(0)) { toggle_select_token(li); return false; } else { input_box.focus(); if(selected_token) { deselect_token($(selected_token), POSITION.END); } } }) .mouseover(function (event) { var li = get_element_from_event(event, "li"); if(li && selected_token !== this) { li.addClass(settings.classes.highlightedToken); } }) .mouseout(function (event) { var li = get_element_from_event(event, "li"); if(li && selected_token !== this) { li.removeClass(settings.classes.highlightedToken); } }) .mousedown(function (event) { // Stop user selecting text on tokens var li = get_element_from_event(event, "li"); if(li){ return false; } }); // The list to store the dropdown items in var dropdown = $("<div>") .addClass(settings.classes.dropdown) .insertAfter(token_list) .hide(); // The token holding the input box var input_token = $("<li />") .addClass(settings.classes.inputToken) .appendTo(token_list) .append(input_box); init_list(); // // Functions // // Pre-populate list if items exist function init_list () { li_data = settings.prePopulate; if(li_data && li_data.length) { for(var i in li_data) { var this_token = $("<li><p>"+li_data[i].cb_activities+"</p> </li>") .addClass(settings.classes.token) .insertBefore(input_token); $("<span>x</span>") .addClass(settings.classes.tokenDelete) .appendTo(this_token) .click(function () { delete_token($(this).parent()); return false; }); $.data(this_token.get(0), "tokeninput", {"cb_activities": li_data[i].cb_activities}); // Clear input box and make sure it keeps focus input_box .val("") .focus(); // Don't show the help dropdown, they've got the idea hide_dropdown(); // Save this token id var id_string = li_data[i].cb_activities + "," hidden_input.val(hidden_input.val() + id_string); } } } function is_printable_character(keycode) { if((keycode >= 48 && keycode <= 90) || // 0-1a-z (keycode >= 96 && keycode <= 111) || // numpad 0-9 + - / * . (keycode >= 186 && keycode <= 192) || // ; = , - . / ^ (keycode >= 219 && keycode <= 222) // ( \ ) ' ) { return true; } else { return false; } } // Get an element of a particular type from an event (click/mouseover etc) function get_element_from_event (event, element_type) { var target = $(event.target); var element = null; if(target.is(element_type)) { element = target; } else if(target.parent(element_type).length) { element = target.parent(element_type+":first"); } return element; } // Inner function to a token to the list function insert_token(value) { var this_token = $("<li><p>"+ value +"</p> </li>") .addClass(settings.classes.token) .insertBefore(input_token); // The 'delete token' button $("<span>x</span>") .addClass(settings.classes.tokenDelete) .appendTo(this_token) .click(function () { delete_token($(this).parent()); return false; }); $.data(this_token.get(0), "tokeninput", {"cb_activities": value}); return this_token; } // Add a token to the token list based on user input function add_token (item) { var li_data = $.data(item.get(0), "tokeninput"); var this_token = insert_token(li_data.cb_activities); // Clear input box and make sure it keeps focus input_box .val("") .focus(); // Don't show the help dropdown, they've got the idea hide_dropdown(); // Save this token id var id_string = li_data.cb_activities + "," hidden_input.val(hidden_input.val() + id_string); token_count++; if(settings.tokenLimit != null && settings.tokenLimit >= token_count) { input_box.hide(); hide_dropdown(); } } // Select a token in the token list function select_token (token) { token.addClass(settings.classes.selectedToken); selected_token = token.get(0); // Hide input box input_box.val(""); // Hide dropdown if it is visible (eg if we clicked to select token) hide_dropdown(); } // Deselect a token in the token list function deselect_token (token, position) { token.removeClass(settings.classes.selectedToken); selected_token = null; if(position == POSITION.BEFORE) { input_token.insertBefore(token); } else if(position == POSITION.AFTER) { input_token.insertAfter(token); } else { input_token.appendTo(token_list); } // Show the input box and give it focus again input_box.focus(); } // Toggle selection of a token in the token list function toggle_select_token (token) { if(selected_token == token.get(0)) { deselect_token(token, POSITION.END); } else { if(selected_token) { deselect_token($(selected_token), POSITION.END); } 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"); // Delete the token token.remove(); selected_token = null; // Show the input box and give it focus again input_box.focus(); // Delete this token's id from hidden input var str = hidden_input.val() var start = str.indexOf(token_data.cb_activities+","); var end = str.indexOf(",", start) + 1; if(end >= str.length) { hidden_input.val(str.slice(0, start)); } else { hidden_input.val(str.slice(0, start) + str.slice(end, str.length)); } token_count--; if (settings.tokenLimit != null) { input_box .show() .val("") .focus(); } } // Hide and clear the results dropdown function hide_dropdown () { dropdown.hide().empty(); selected_dropdown_item = null; } function show_dropdown_searching () { dropdown .html("<p>"+settings.searchingText+"</p>") .show(); } function show_dropdown_hint () { dropdown .html("<p>"+settings.hintText+"</p>") .show(); } // 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.length) { dropdown.empty(); var dropdown_ul = $("<ul>") .appendTo(dropdown) .mouseover(function (event) { select_dropdown_item(get_element_from_event(event, "li")); }) .mousedown(function (event) { add_token(get_element_from_event(event, "li")); return false; }) .hide(); for(var i in results) { if (results.hasOwnProperty(i)) { var this_li = $("<li>"+highlight_term(results[i].cb_activities, query)+"</li>") .appendTo(dropdown_ul); if(i%2) { this_li.addClass(settings.classes.dropdownItem); } else { this_li.addClass(settings.classes.dropdownItem2); } if(i == 0) { select_dropdown_item(this_li); } $.data(this_li.get(0), "tokeninput", {"cb_activities": results[i].cb_activities}); } } dropdown.show(); dropdown_ul.slideDown("fast"); } else { dropdown .html("<p>"+settings.noResultsText+"</p>") .show(); } } // Highlight an item in the results dropdown function select_dropdown_item (item) { if(item) { if(selected_dropdown_item) { deselect_dropdown_item($(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(immediate) { var query = input_box.val().toLowerCase(); if (query && query.length) { if(selected_token) { deselect_token($(selected_token), POSITION.AFTER); } if (query.length >= settings.minChars) { show_dropdown_searching(); if (immediate) { run_search(query); } else { clearTimeout(timeout); timeout = setTimeout(function(){run_search(query);}, settings.searchDelay); } } else { hide_dropdown(); } } } // Do the actual search function run_search(query) { var cached_results = cache.get(query); if(cached_results) { populate_dropdown(query, cached_results); } else { var queryStringDelimiter = settings.url.indexOf("?") < 0 ? "?" : "&"; var callback = function(results) { if($.isFunction(settings.onResult)) { results = settings.onResult.call(this, results); } cache.add(query, settings.jsonContainer ? results[settings.jsonContainer] : results); populate_dropdown(query, settings.jsonContainer ? results[settings.jsonContainer] : results); }; if(settings.method == "POST") { $.post(settings.url + queryStringDelimiter + settings.queryParam + "=" + query, {}, callback, settings.contentType); } else { $.get(settings.url + queryStringDelimiter + settings.queryParam + "=" + query, {}, callback, settings.contentType); } } } }; // Really basic cache for the results $.TokenList.Cache = function (options) { var settings = $.extend({ max_size: 50 }, 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++; } data[query] = results; }; this.get = function (query) { return data[query]; }; }; })(jQuery); Quote Link to comment https://forums.phpfreaks.com/topic/220377-how-to-pass-new-value-to-hidden-input/ Share on other sites More sharing options...
Rifts Posted December 1, 2010 Share Posted December 1, 2010 this is all jquery not php Quote Link to comment https://forums.phpfreaks.com/topic/220377-how-to-pass-new-value-to-hidden-input/#findComment-1141929 Share on other sites More sharing options...
sfraise Posted December 1, 2010 Author Share Posted December 1, 2010 This is solved, not sure why this got posted here. Quote Link to comment https://forums.phpfreaks.com/topic/220377-how-to-pass-new-value-to-hidden-input/#findComment-1141999 Share on other sites More sharing options...
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