select 自定义样式插件 selectize.js

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/**
* sifter.js
* Copyright (c) 2013 Brian Reavis & contributors
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
* file except in compliance with the License. You may obtain a copy of the License at:
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
* ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*
* @author Brian Reavis <brian@thirdroute.com>
*/(function(root, factory) {
if (typeof define === 'function' && define.amd) {
define(factory);
} else if (typeof exports === 'object') {
module.exports = factory();
} else {
root.Sifter = factory();
}
}(this, function() { /**
* Textually searches arrays and hashes of objects
* by property (or multiple properties). Designed
* specifically for autocomplete.
*
* @constructor
* @param {array|object} items
* @param {object} items
*/
var Sifter = function(items, settings) {
this.items = items;
this.settings = settings || {diacritics: true};
}; /**
* Splits a search string into an array of individual
* regexps to be used to match results.
*
* @param {string} query
* @returns {array}
*/
Sifter.prototype.tokenize = function(query) {
query = trim(String(query || '').toLowerCase());
if (!query || !query.length) return []; var i, n, regex, letter;
var tokens = [];
var words = query.split(/ +/); for (i = 0, n = words.length; i < n; i++) {
regex = escape_regex(words[i]);
if (this.settings.diacritics) {
for (letter in DIACRITICS) {
if (DIACRITICS.hasOwnProperty(letter)) {
regex = regex.replace(new RegExp(letter, 'g'), DIACRITICS[letter]);
}
}
}
tokens.push({
string : words[i],
regex : new RegExp(regex, 'i')
});
} return tokens;
}; /**
* Iterates over arrays and hashes.
*
* ```
* this.iterator(this.items, function(item, id) {
* // invoked for each item
* });
* ```
*
* @param {array|object} object
*/
Sifter.prototype.iterator = function(object, callback) {
var iterator;
if (is_array(object)) {
iterator = Array.prototype.forEach || function(callback) {
for (var i = 0, n = this.length; i < n; i++) {
callback(this[i], i, this);
}
};
} else {
iterator = function(callback) {
for (var key in this) {
if (this.hasOwnProperty(key)) {
callback(this[key], key, this);
}
}
};
} iterator.apply(object, [callback]);
}; /**
* Returns a function to be used to score individual results.
*
* Good matches will have a higher score than poor matches.
* If an item is not a match, 0 will be returned by the function.
*
* @param {object|string} search
* @param {object} options (optional)
* @returns {function}
*/
Sifter.prototype.getScoreFunction = function(search, options) {
var self, fields, tokens, token_count; self = this;
search = self.prepareSearch(search, options);
tokens = search.tokens;
fields = search.options.fields;
token_count = tokens.length; /**
* Calculates how close of a match the
* given value is against a search token.
*
* @param {mixed} value
* @param {object} token
* @return {number}
*/
var scoreValue = function(value, token) {
var score, pos; if (!value) return 0;
value = String(value || '');
pos = value.search(token.regex);
if (pos === -1) return 0;
score = token.string.length / value.length;
if (pos === 0) score += 0.5;
return score;
}; /**
* Calculates the score of an object
* against the search query.
*
* @param {object} token
* @param {object} data
* @return {number}
*/
var scoreObject = (function() {
var field_count = fields.length;
if (!field_count) {
return function() { return 0; };
}
if (field_count === 1) {
return function(token, data) {
return scoreValue(data[fields[0]], token);
};
}
return function(token, data) {
for (var i = 0, sum = 0; i < field_count; i++) {
sum += scoreValue(data[fields[i]], token);
}
return sum / field_count;
};
})(); if (!token_count) {
return function() { return 0; };
}
if (token_count === 1) {
return function(data) {
return scoreObject(tokens[0], data);
};
} if (search.options.conjunction === 'and') {
return function(data) {
var score;
for (var i = 0, sum = 0; i < token_count; i++) {
score = scoreObject(tokens[i], data);
if (score <= 0) return 0;
sum += score;
}
return sum / token_count;
};
} else {
return function(data) {
for (var i = 0, sum = 0; i < token_count; i++) {
sum += scoreObject(tokens[i], data);
}
return sum / token_count;
};
}
}; /**
* Returns a function that can be used to compare two
* results, for sorting purposes. If no sorting should
* be performed, `null` will be returned.
*
* @param {string|object} search
* @param {object} options
* @return function(a,b)
*/
Sifter.prototype.getSortFunction = function(search, options) {
var i, n, self, field, fields, fields_count, multiplier, multipliers, get_field, implicit_score, sort; self = this;
search = self.prepareSearch(search, options);
sort = (!search.query && options.sort_empty) || options.sort; /**
* Fetches the specified sort field value
* from a search result item.
*
* @param {string} name
* @param {object} result
* @return {mixed}
*/
get_field = function(name, result) {
if (name === '$score') return result.score;
return self.items[result.id][name];
}; // parse options
fields = [];
if (sort) {
for (i = 0, n = sort.length; i < n; i++) {
if (search.query || sort[i].field !== '$score') {
fields.push(sort[i]);
}
}
} // the "$score" field is implied to be the primary
// sort field, unless it's manually specified
if (search.query) {
implicit_score = true;
for (i = 0, n = fields.length; i < n; i++) {
if (fields[i].field === '$score') {
implicit_score = false;
break;
}
}
if (implicit_score) {
fields.unshift({field: '$score', direction: 'desc'});
}
} else {
for (i = 0, n = fields.length; i < n; i++) {
if (fields[i].field === '$score') {
fields.splice(i, 1);
break;
}
}
} multipliers = [];
for (i = 0, n = fields.length; i < n; i++) {
multipliers.push(fields[i].direction === 'desc' ? -1 : 1);
} // build function
fields_count = fields.length;
if (!fields_count) {
return null;
} else if (fields_count === 1) {
field = fields[0].field;
multiplier = multipliers[0];
return function(a, b) {
return multiplier * cmp(
get_field(field, a),
get_field(field, b)
);
};
} else {
return function(a, b) {
var i, result, a_value, b_value, field;
for (i = 0; i < fields_count; i++) {
field = fields[i].field;
result = multipliers[i] * cmp(
get_field(field, a),
get_field(field, b)
);
if (result) return result;
}
return 0;
};
}
}; /**
* Parses a search query and returns an object
* with tokens and fields ready to be populated
* with results.
*
* @param {string} query
* @param {object} options
* @returns {object}
*/
Sifter.prototype.prepareSearch = function(query, options) {
if (typeof query === 'object') return query; options = extend({}, options); var option_fields = options.fields;
var option_sort = options.sort;
var option_sort_empty = options.sort_empty; if (option_fields && !is_array(option_fields)) options.fields = [option_fields];
if (option_sort && !is_array(option_sort)) options.sort = [option_sort];
if (option_sort_empty && !is_array(option_sort_empty)) options.sort_empty = [option_sort_empty]; return {
options : options,
query : String(query || '').toLowerCase(),
tokens : this.tokenize(query),
total : 0,
items : []
};
}; /**
* Searches through all items and returns a sorted array of matches.
*
* The `options` parameter can contain:
*
* - fields {string|array}
* - sort {array}
* - score {function}
* - filter {bool}
* - limit {integer}
*
* Returns an object containing:
*
* - options {object}
* - query {string}
* - tokens {array}
* - total {int}
* - items {array}
*
* @param {string} query
* @param {object} options
* @returns {object}
*/
Sifter.prototype.search = function(query, options) {
var self = this, value, score, search, calculateScore;
var fn_sort;
var fn_score; search = this.prepareSearch(query, options);
options = search.options;
query = search.query; // generate result scoring function
fn_score = options.score || self.getScoreFunction(search); // perform search and sort
if (query.length) {
self.iterator(self.items, function(item, id) {
score = fn_score(item);
if (options.filter === false || score > 0) {
search.items.push({'score': score, 'id': id});
}
});
} else {
self.iterator(self.items, function(item, id) {
search.items.push({'score': 1, 'id': id});
});
} fn_sort = self.getSortFunction(search, options);
if (fn_sort) search.items.sort(fn_sort); // apply limits
search.total = search.items.length;
if (typeof options.limit === 'number') {
search.items = search.items.slice(0, options.limit);
} return search;
}; // utilities
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - var cmp = function(a, b) {
if (typeof a === 'number' && typeof b === 'number') {
return a > b ? 1 : (a < b ? -1 : 0);
}
a = String(a || '').toLowerCase();
b = String(b || '').toLowerCase();
if (a > b) return 1;
if (b > a) return -1;
return 0;
}; var extend = function(a, b) {
var i, n, k, object;
for (i = 1, n = arguments.length; i < n; i++) {
object = arguments[i];
if (!object) continue;
for (k in object) {
if (object.hasOwnProperty(k)) {
a[k] = object[k];
}
}
}
return a;
}; var trim = function(str) {
return (str + '').replace(/^\s+|\s+$|/g, '');
}; var escape_regex = function(str) {
return (str + '').replace(/([.?*+^$[\]\\(){}|-])/g, '\\$1');
}; var is_array = Array.isArray || ($ && $.isArray) || function(object) {
return Object.prototype.toString.call(object) === '[object Array]';
}; var DIACRITICS = {
'a': '[aÀÁÂÃÄÅàáâãäå]',
'c': '[cÇçćĆčČ]',
'd': '[dđĐ]',
'e': '[eÈÉÊËèéêë]',
'i': '[iÌÍÎÏìíîï]',
'n': '[nÑñ]',
'o': '[oÒÓÔÕÕÖØòóôõöø]',
's': '[sŠš]',
'u': '[uÙÚÛÜùúûü]',
'y': '[yŸÿý]',
'z': '[zŽž]'
}; // export
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - return Sifter;
}));/**
* microplugin.js
* Copyright (c) 2013 Brian Reavis & contributors
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
* file except in compliance with the License. You may obtain a copy of the License at:
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
* ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*
* @author Brian Reavis <brian@thirdroute.com>
*/(function(root, factory) {
if (typeof define === 'function' && define.amd) {
define(factory);
} else if (typeof exports === 'object') {
module.exports = factory();
} else {
root.MicroPlugin = factory();
}
}(this, function() {
var MicroPlugin = {}; MicroPlugin.mixin = function(Interface) {
Interface.plugins = {}; /**
* Initializes the listed plugins (with options).
* Acceptable formats:
*
* List (without options):
* ['a', 'b', 'c']
*
* List (with options):
* [{'name': 'a', options: {}}, {'name': 'b', options: {}}]
*
* Hash (with options):
* {'a': { ... }, 'b': { ... }, 'c': { ... }}
*
* @param {mixed} plugins
*/
Interface.prototype.initializePlugins = function(plugins) {
var i, n, key;
var self = this;
var queue = []; self.plugins = {
names : [],
settings : {},
requested : {},
loaded : {}
}; if (utils.isArray(plugins)) {
for (i = 0, n = plugins.length; i < n; i++) {
if (typeof plugins[i] === 'string') {
queue.push(plugins[i]);
} else {
self.plugins.settings[plugins[i].name] = plugins[i].options;
queue.push(plugins[i].name);
}
}
} else if (plugins) {
for (key in plugins) {
if (plugins.hasOwnProperty(key)) {
self.plugins.settings[key] = plugins[key];
queue.push(key);
}
}
} while (queue.length) {
self.require(queue.shift());
}
}; Interface.prototype.loadPlugin = function(name) {
var self = this;
var plugins = self.plugins;
var plugin = Interface.plugins[name]; if (!Interface.plugins.hasOwnProperty(name)) {
throw new Error('Unable to find "' + name + '" plugin');
} plugins.requested[name] = true;
plugins.loaded[name] = plugin.fn.apply(self, [self.plugins.settings[name] || {}]);
plugins.names.push(name);
}; /**
* Initializes a plugin.
*
* @param {string} name
*/
Interface.prototype.require = function(name) {
var self = this;
var plugins = self.plugins; if (!self.plugins.loaded.hasOwnProperty(name)) {
if (plugins.requested[name]) {
throw new Error('Plugin has circular dependency ("' + name + '")');
}
self.loadPlugin(name);
} return plugins.loaded[name];
}; /**
* Registers a plugin.
*
* @param {string} name
* @param {function} fn
*/
Interface.define = function(name, fn) {
Interface.plugins[name] = {
'name' : name,
'fn' : fn
};
};
}; var utils = {
isArray: Array.isArray || function(vArg) {
return Object.prototype.toString.call(vArg) === '[object Array]';
}
}; return MicroPlugin;
}));/**
* selectize.js (v0.8.2)
* Copyright (c) 2013 Brian Reavis & contributors
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
* file except in compliance with the License. You may obtain a copy of the License at:
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
* ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*
* @author Brian Reavis <brian@thirdroute.com>
*//*jshint curly:false */
/*jshint browser:true */(function(root, factory) {
if (typeof define === 'function' && define.amd) {
define(['jquery','sifter','microplugin'], factory);
} else {
root.Selectize = factory(root.jQuery, root.Sifter, root.MicroPlugin);
}
}(this, function($, Sifter, MicroPlugin) {
'use strict'; var highlight = function($element, pattern) {
if (typeof pattern === 'string' && !pattern.length) return;
var regex = (typeof pattern === 'string') ? new RegExp(pattern, 'i') : pattern; var highlight = function(node) {
var skip = 0;
if (node.nodeType === 3) {
var pos = node.data.search(regex);
if (pos >= 0 && node.data.length > 0) {
var match = node.data.match(regex);
var spannode = document.createElement('span');
spannode.className = 'highlight';
var middlebit = node.splitText(pos);
var endbit = middlebit.splitText(match[0].length);
var middleclone = middlebit.cloneNode(true);
spannode.appendChild(middleclone);
middlebit.parentNode.replaceChild(spannode, middlebit);
skip = 1;
}
} else if (node.nodeType === 1 && node.childNodes && !/(script|style)/i.test(node.tagName)) {
for (var i = 0; i < node.childNodes.length; ++i) {
i += highlight(node.childNodes[i]);
}
}
return skip;
}; return $element.each(function() {
highlight(this);
});
}; var MicroEvent = function() {};
MicroEvent.prototype = {
on: function(event, fct){
this._events = this._events || {};
this._events[event] = this._events[event] || [];
this._events[event].push(fct);
},
off: function(event, fct){
var n = arguments.length;
if (n === 0) return delete this._events;
if (n === 1) return delete this._events[event]; this._events = this._events || {};
if (event in this._events === false) return;
this._events[event].splice(this._events[event].indexOf(fct), 1);
},
trigger: function(event /* , args... */){
this._events = this._events || {};
if (event in this._events === false) return;
for (var i = 0; i < this._events[event].length; i++){
this._events[event][i].apply(this, Array.prototype.slice.call(arguments, 1));
}
}
}; /**
* Mixin will delegate all MicroEvent.js function in the destination object.
*
* - MicroEvent.mixin(Foobar) will make Foobar able to use MicroEvent
*
* @param {object} the object which will support MicroEvent
*/
MicroEvent.mixin = function(destObject){
var props = ['on', 'off', 'trigger'];
for (var i = 0; i < props.length; i++){
destObject.prototype[props[i]] = MicroEvent.prototype[props[i]];
}
}; var IS_MAC = /Mac/.test(navigator.userAgent); var KEY_A = 65;
var KEY_COMMA = 188;
var KEY_RETURN = 13;
var KEY_ESC = 27;
var KEY_LEFT = 37;
var KEY_UP = 38;
var KEY_RIGHT = 39;
var KEY_DOWN = 40;
var KEY_BACKSPACE = 8;
var KEY_DELETE = 46;
var KEY_SHIFT = 16;
var KEY_CMD = IS_MAC ? 91 : 17;
var KEY_CTRL = IS_MAC ? 18 : 17;
var KEY_TAB = 9; var TAG_SELECT = 1;
var TAG_INPUT = 2; var isset = function(object) {
return typeof object !== 'undefined';
}; /**
* Converts a scalar to its best string representation
* for hash keys and HTML attribute values.
*
* Transformations:
* 'str' -> 'str'
* null -> ''
* undefined -> ''
* true -> '1'
* false -> '0'
* 0 -> '0'
* 1 -> '1'
*
* @param {string} value
* @returns {string}
*/
var hash_key = function(value) {
if (typeof value === 'undefined' || value === null) return '';
if (typeof value === 'boolean') return value ? '1' : '0';
return value + '';
}; /**
* Escapes a string for use within HTML.
*
* @param {string} str
* @returns {string}
*/
var escape_html = function(str) {
return (str + '')
.replace(/&/g, '&amp;')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;')
.replace(/"/g, '&quot;');
}; /**
* Escapes "$" characters in replacement strings.
*
* @param {string} str
* @returns {string}
*/
var escape_replace = function(str) {
return (str + '').replace(/\$/g, '$$$$');
}; var hook = {}; /**
* Wraps `method` on `self` so that `fn`
* is invoked before the original method.
*
* @param {object} self
* @param {string} method
* @param {function} fn
*/
hook.before = function(self, method, fn) {
var original = self[method];
self[method] = function() {
fn.apply(self, arguments);
return original.apply(self, arguments);
};
}; /**
* Wraps `method` on `self` so that `fn`
* is invoked after the original method.
*
* @param {object} self
* @param {string} method
* @param {function} fn
*/
hook.after = function(self, method, fn) {
var original = self[method];
self[method] = function() {
var result = original.apply(self, arguments);
fn.apply(self, arguments);
return result;
};
}; /**
* Builds a hash table out of an array of
* objects, using the specified `key` within
* each object.
*
* @param {string} key
* @param {mixed} objects
*/
var build_hash_table = function(key, objects) {
if (!$.isArray(objects)) return objects;
var i, n, table = {};
for (i = 0, n = objects.length; i < n; i++) {
if (objects[i].hasOwnProperty(key)) {
table[objects[i][key]] = objects[i];
}
}
return table;
}; /**
* Wraps `fn` so that it can only be invoked once.
*
* @param {function} fn
* @returns {function}
*/
var once = function(fn) {
var called = false;
return function() {
if (called) return;
called = true;
fn.apply(this, arguments);
};
}; /**
* Wraps `fn` so that it can only be called once
* every `delay` milliseconds (invoked on the falling edge).
*
* @param {function} fn
* @param {int} delay
* @returns {function}
*/
var debounce = function(fn, delay) {
var timeout;
return function() {
var self = this;
var args = arguments;
window.clearTimeout(timeout);
timeout = window.setTimeout(function() {
fn.apply(self, args);
}, delay);
};
}; /**
* Debounce all fired events types listed in `types`
* while executing the provided `fn`.
*
* @param {object} self
* @param {array} types
* @param {function} fn
*/
var debounce_events = function(self, types, fn) {
var type;
var trigger = self.trigger;
var event_args = {}; // override trigger method
self.trigger = function() {
var type = arguments[0];
if (types.indexOf(type) !== -1) {
event_args[type] = arguments;
} else {
return trigger.apply(self, arguments);
}
}; // invoke provided function
fn.apply(self, []);
self.trigger = trigger; // trigger queued events
for (type in event_args) {
if (event_args.hasOwnProperty(type)) {
trigger.apply(self, event_args[type]);
}
}
}; /**
* A workaround for http://bugs.jquery.com/ticket/6696
*
* @param {object} $parent - Parent element to listen on.
* @param {string} event - Event name.
* @param {string} selector - Descendant selector to filter by.
* @param {function} fn - Event handler.
*/
var watchChildEvent = function($parent, event, selector, fn) {
$parent.on(event, selector, function(e) {
var child = e.target;
while (child && child.parentNode !== $parent[0]) {
child = child.parentNode;
}
e.currentTarget = child;
return fn.apply(this, [e]);
});
}; /**
* Determines the current selection within a text input control.
* Returns an object containing:
* - start
* - length
*
* @param {object} input
* @returns {object}
*/
var getSelection = function(input) {
var result = {};
if ('selectionStart' in input) {
result.start = input.selectionStart;
result.length = input.selectionEnd - result.start;
} else if (document.selection) {
input.focus();
var sel = document.selection.createRange();
var selLen = document.selection.createRange().text.length;
sel.moveStart('character', -input.value.length);
result.start = sel.text.length - selLen;
result.length = selLen;
}
return result;
}; /**
* Copies CSS properties from one element to another.
*
* @param {object} $from
* @param {object} $to
* @param {array} properties
*/
var transferStyles = function($from, $to, properties) {
var i, n, styles = {};
if (properties) {
for (i = 0, n = properties.length; i < n; i++) {
styles[properties[i]] = $from.css(properties[i]);
}
} else {
styles = $from.css();
}
$to.css(styles);
}; /**
* Measures the width of a string within a
* parent element (in pixels).
*
* @param {string} str
* @param {object} $parent
* @returns {int}
*/
var measureString = function(str, $parent) {
var $test = $('<test>').css({
position: 'absolute',
top: -99999,
left: -99999,
width: 'auto',
padding: 0,
whiteSpace: 'pre'
}).text(str).appendTo('body'); transferStyles($parent, $test, [
'letterSpacing',
'fontSize',
'fontFamily',
'fontWeight',
'textTransform'
]); var width = $test.width();
$test.remove(); return width;
}; /**
* Sets up an input to grow horizontally as the user
* types. If the value is changed manually, you can
* trigger the "update" handler to resize:
*
* $input.trigger('update');
*
* @param {object} $input
*/
var autoGrow = function($input) {
var update = function(e) {
var value, keyCode, printable, placeholder, width;
var shift, character, selection;
e = e || window.event || {}; if (e.metaKey || e.altKey) return;
if ($input.data('grow') === false) return; value = $input.val();
if (e.type && e.type.toLowerCase() === 'keydown') {
keyCode = e.keyCode;
printable = (
(keyCode >= 97 && keyCode <= 122) || // a-z
(keyCode >= 65 && keyCode <= 90) || // A-Z
(keyCode >= 48 && keyCode <= 57) || // 0-9
keyCode === 32 // space
); if (keyCode === KEY_DELETE || keyCode === KEY_BACKSPACE) {
selection = getSelection($input[0]);
if (selection.length) {
value = value.substring(0, selection.start) + value.substring(selection.start + selection.length);
} else if (keyCode === KEY_BACKSPACE && selection.start) {
value = value.substring(0, selection.start - 1) + value.substring(selection.start + 1);
} else if (keyCode === KEY_DELETE && typeof selection.start !== 'undefined') {
value = value.substring(0, selection.start) + value.substring(selection.start + 1);
}
} else if (printable) {
shift = e.shiftKey;
character = String.fromCharCode(e.keyCode);
if (shift) character = character.toUpperCase();
else character = character.toLowerCase();
value += character;
}
} placeholder = $input.attr('placeholder') || '';
if (!value.length && placeholder.length) {
value = placeholder;
} width = measureString(value, $input) + 4;
if (width !== $input.width()) {
$input.width(width);
$input.triggerHandler('resize');
}
}; $input.on('keydown keyup update blur', update);
update();
}; var Selectize = function($input, settings) {
var key, i, n, dir, input, self = this;
input = $input[0];
input.selectize = self; // detect rtl environment
dir = window.getComputedStyle ? window.getComputedStyle(input, null).getPropertyValue('direction') : input.currentStyle && input.currentStyle.direction;
dir = dir || $input.parents('[dir]:first').attr('dir') || ''; // setup default state
$.extend(self, {
settings : settings,
$input : $input,
tagType : input.tagName.toLowerCase() === 'select' ? TAG_SELECT : TAG_INPUT,
rtl : /rtl/i.test(dir), eventNS : '.selectize' + (++Selectize.count),
highlightedValue : null,
isOpen : false,
isDisabled : false,
isRequired : $input.is('[required]'),
isInvalid : false,
isLocked : false,
isFocused : false,
isInputHidden : false,
isSetup : false,
isShiftDown : false,
isCmdDown : false,
isCtrlDown : false,
ignoreFocus : false,
ignoreHover : false,
hasOptions : false,
currentResults : null,
lastValue : '',
caretPos : 0,
loading : 0,
loadedSearches : {}, $activeOption : null,
$activeItems : [], optgroups : {},
options : {},
userOptions : {},
items : [],
renderCache : {},
onSearchChange : debounce(self.onSearchChange, settings.loadThrottle)
}); // search system
self.sifter = new Sifter(this.options, {diacritics: settings.diacritics}); // build options table
$.extend(self.options, build_hash_table(settings.valueField, settings.options));
delete self.settings.options; // build optgroup table
$.extend(self.optgroups, build_hash_table(settings.optgroupValueField, settings.optgroups));
delete self.settings.optgroups; // option-dependent defaults
self.settings.mode = self.settings.mode || (self.settings.maxItems === 1 ? 'single' : 'multi');
if (typeof self.settings.hideSelected !== 'boolean') {
self.settings.hideSelected = self.settings.mode === 'multi';
} self.initializePlugins(self.settings.plugins);
self.setupCallbacks();
self.setupTemplates();
self.setup();
}; // mixins
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - MicroEvent.mixin(Selectize);
MicroPlugin.mixin(Selectize); // methods
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - $.extend(Selectize.prototype, { /**
* Creates all elements and sets up event bindings.
*/
setup: function() {
var self = this;
var settings = self.settings;
var eventNS = self.eventNS;
var $window = $(window);
var $document = $(document); var $wrapper;
var $control;
var $control_input;
var $dropdown;
var $dropdown_content;
var $dropdown_parent;
var inputMode;
var timeout_blur;
var timeout_focus;
var tab_index;
var classes;
var classes_plugins; inputMode = self.settings.mode;
tab_index = self.$input.attr('tabindex') || '';
classes = self.$input.attr('class') || ''; $wrapper = $('<div>').addClass(settings.wrapperClass).addClass(classes).addClass(inputMode);
$control = $('<div>').addClass(settings.inputClass).addClass('items').appendTo($wrapper);
$control_input = $('<input type="text" autocomplete="off">').appendTo($control).attr('tabindex', tab_index);
$dropdown_parent = $(settings.dropdownParent || $wrapper);
$dropdown = $('<div>').addClass(settings.dropdownClass).addClass(classes).addClass(inputMode).hide().appendTo($dropdown_parent);
$dropdown_content = $('<div>').addClass(settings.dropdownContentClass).appendTo($dropdown); $wrapper.css({
width: self.$input[0].style.width
}); if (self.plugins.names.length) {
classes_plugins = 'plugin-' + self.plugins.names.join(' plugin-');
$wrapper.addClass(classes_plugins);
$dropdown.addClass(classes_plugins);
} if ((settings.maxItems === null || settings.maxItems > 1) && self.tagType === TAG_SELECT) {
self.$input.attr('multiple', 'multiple');
} if (self.settings.placeholder) {
$control_input.attr('placeholder', settings.placeholder);
} self.$wrapper = $wrapper;
self.$control = $control;
self.$control_input = $control_input;
self.$dropdown = $dropdown;
self.$dropdown_content = $dropdown_content; $dropdown.on('mouseenter', '[data-selectable]', function() { return self.onOptionHover.apply(self, arguments); });
$dropdown.on('mousedown', '[data-selectable]', function() { return self.onOptionSelect.apply(self, arguments); });
watchChildEvent($control, 'mousedown', '*:not(input)', function() { return self.onItemSelect.apply(self, arguments); });
autoGrow($control_input); $control.on({
mousedown : function() { return self.onMouseDown.apply(self, arguments); },
click : function() { return self.onClick.apply(self, arguments); }
}); $control_input.on({
mousedown : function(e) { e.stopPropagation(); },
keydown : function() { return self.onKeyDown.apply(self, arguments); },
keyup : function() { return self.onKeyUp.apply(self, arguments); },
keypress : function() { return self.onKeyPress.apply(self, arguments); },
resize : function() { self.positionDropdown.apply(self, []); },
blur : function() { return self.onBlur.apply(self, arguments); },
focus : function() { return self.onFocus.apply(self, arguments); }
}); $document.on('keydown' + eventNS, function(e) {
self.isCmdDown = e[IS_MAC ? 'metaKey' : 'ctrlKey'];
self.isCtrlDown = e[IS_MAC ? 'altKey' : 'ctrlKey'];
self.isShiftDown = e.shiftKey;
}); $document.on('keyup' + eventNS, function(e) {
if (e.keyCode === KEY_CTRL) self.isCtrlDown = false;
if (e.keyCode === KEY_SHIFT) self.isShiftDown = false;
if (e.keyCode === KEY_CMD) self.isCmdDown = false;
}); $document.on('mousedown' + eventNS, function(e) {
if (self.isFocused) {
// prevent events on the dropdown scrollbar from causing the control to blur
if (e.target === self.$dropdown[0] || e.target.parentNode === self.$dropdown[0]) {
return false;
}
// blur on click outside
if (!self.$control.has(e.target).length && e.target !== self.$control[0]) {
self.blur();
}
}
}); $window.on(['scroll' + eventNS, 'resize' + eventNS].join(' '), function() {
if (self.isOpen) {
self.positionDropdown.apply(self, arguments);
}
});
$window.on('mousemove' + eventNS, function() {
self.ignoreHover = false;
}); // store original children and tab index so that they can be
// restored when the destroy() method is called.
this.revertSettings = {
$children : self.$input.children().detach(),
tabindex : self.$input.attr('tabindex')
}; self.$input.attr('tabindex', -1).hide().after(self.$wrapper); if ($.isArray(settings.items)) {
self.setValue(settings.items);
delete settings.items;
} // feature detect for the validation API
if (self.$input[0].validity) {
self.$input.on('invalid' + eventNS, function(e) {
e.preventDefault();
self.isInvalid = true;
self.refreshState();
});
} self.updateOriginalInput();
self.refreshItems();
self.refreshState();
self.updatePlaceholder();
self.isSetup = true; if (self.$input.is(':disabled')) {
self.disable();
} self.on('change', this.onChange);
self.trigger('initialize'); // preload options
if (settings.preload) {
self.onSearchChange('');
}
}, /**
* Sets up default rendering functions.
*/
setupTemplates: function() {
var self = this;
var field_label = self.settings.labelField;
var field_optgroup = self.settings.optgroupLabelField; var templates = {
'optgroup': function(data) {
return '<div class="optgroup">' + data.html + '</div>';
},
'optgroup_header': function(data, escape) {
return '<div class="optgroup-header">' + escape(data[field_optgroup]) + '</div>';
},
'option': function(data, escape) {
return '<div class="option">' + escape(data[field_label]) + '</div>';
},
'item': function(data, escape) {
return '<div class="item">' + escape(data[field_label]) + '</div>';
},
'option_create': function(data, escape) {
return '<div class="create">Add <strong>' + escape(data.input) + '</strong>&hellip;</div>';
}
}; self.settings.render = $.extend({}, templates, self.settings.render);
}, /**
* Maps fired events to callbacks provided
* in the settings used when creating the control.
*/
setupCallbacks: function() {
var key, fn, callbacks = {
'initialize' : 'onInitialize',
'change' : 'onChange',
'item_add' : 'onItemAdd',
'item_remove' : 'onItemRemove',
'clear' : 'onClear',
'option_add' : 'onOptionAdd',
'option_remove' : 'onOptionRemove',
'option_clear' : 'onOptionClear',
'dropdown_open' : 'onDropdownOpen',
'dropdown_close' : 'onDropdownClose',
'type' : 'onType'
}; for (key in callbacks) {
if (callbacks.hasOwnProperty(key)) {
fn = this.settings[callbacks[key]];
if (fn) this.on(key, fn);
}
}
}, /**
* Triggered when the main control element
* has a click event.
*
* @param {object} e
* @return {boolean}
*/
onClick: function(e) {
var self = this; // necessary for mobile webkit devices (manual focus triggering
// is ignored unless invoked within a click event)
if (!self.isFocused) {
self.focus();
e.preventDefault();
}
}, /**
* Triggered when the main control element
* has a mouse down event.
*
* @param {object} e
* @return {boolean}
*/
onMouseDown: function(e) {
var self = this;
var defaultPrevented = e.isDefaultPrevented();
var $target = $(e.target); if (self.isFocused) {
// retain focus by preventing native handling. if the
// event target is the input it should not be modified.
// otherwise, text selection within the input won't work.
if (e.target !== self.$control_input[0]) {
if (self.settings.mode === 'single') {
// toggle dropdown
self.isOpen ? self.close() : self.open();
} else if (!defaultPrevented) {
self.setActiveItem(null);
}
return false;
}
} else {
// give control focus
if (!defaultPrevented) {
window.setTimeout(function() {
self.focus();
}, 0);
}
}
}, /**
* Triggered when the value of the control has been changed.
* This should propagate the event to the original DOM
* input / select element.
*/
onChange: function() {
this.$input.trigger('change');
}, /**
* Triggered on <input> keypress.
*
* @param {object} e
* @returns {boolean}
*/
onKeyPress: function(e) {
if (this.isLocked) return e && e.preventDefault();
var character = String.fromCharCode(e.keyCode || e.which);
if (this.settings.create && character === this.settings.delimiter) {
this.createItem();
e.preventDefault();
return false;
}
}, /**
* Triggered on <input> keydown.
*
* @param {object} e
* @returns {boolean}
*/
onKeyDown: function(e) {
var isInput = e.target === this.$control_input[0];
var self = this; if (self.isLocked) {
if (e.keyCode !== KEY_TAB) {
e.preventDefault();
}
return;
} switch (e.keyCode) {
case KEY_A:
if (self.isCmdDown) {
self.selectAll();
return;
}
break;
case KEY_ESC:
self.close();
return;
case KEY_DOWN:
if (!self.isOpen && self.hasOptions) {
self.open();
} else if (self.$activeOption) {
self.ignoreHover = true;
var $next = self.getAdjacentOption(self.$activeOption, 1);
if ($next.length) self.setActiveOption($next, true, true);
}
e.preventDefault();
return;
case KEY_UP:
if (self.$activeOption) {
self.ignoreHover = true;
var $prev = self.getAdjacentOption(self.$activeOption, -1);
if ($prev.length) self.setActiveOption($prev, true, true);
}
e.preventDefault();
return;
case KEY_RETURN:
if (self.isOpen && self.$activeOption) {
self.onOptionSelect({currentTarget: self.$activeOption});
}
e.preventDefault();
return;
case KEY_LEFT:
self.advanceSelection(-1, e);
return;
case KEY_RIGHT:
self.advanceSelection(1, e);
return;
case KEY_TAB:
if (self.settings.create && $.trim(self.$control_input.val()).length) {
self.createItem();
e.preventDefault();
}
return;
case KEY_BACKSPACE:
case KEY_DELETE:
self.deleteSelection(e);
return;
}
if (self.isFull() || self.isInputHidden) {
e.preventDefault();
return;
}
}, /**
* Triggered on <input> keyup.
*
* @param {object} e
* @returns {boolean}
*/
onKeyUp: function(e) {
var self = this; if (self.isLocked) return e && e.preventDefault();
var value = self.$control_input.val() || '';
if (self.lastValue !== value) {
self.lastValue = value;
self.onSearchChange(value);
self.refreshOptions();
self.trigger('type', value);
}
}, /**
* Invokes the user-provide option provider / loader.
*
* Note: this function is debounced in the Selectize
* constructor (by `settings.loadDelay` milliseconds)
*
* @param {string} value
*/
onSearchChange: function(value) {
var self = this;
var fn = self.settings.load;
if (!fn) return;
if (self.loadedSearches.hasOwnProperty(value)) return;
self.loadedSearches[value] = true;
self.load(function(callback) {
fn.apply(self, [value, callback]);
});
}, /**
* Triggered on <input> focus.
*
* @param {object} e (optional)
* @returns {boolean}
*/
onFocus: function(e) {
var self = this; self.isFocused = true;
if (self.isDisabled) {
self.blur();
e && e.preventDefault();
return false;
} if (self.ignoreFocus) return;
if (self.settings.preload === 'focus') self.onSearchChange(''); if (!self.$activeItems.length) {
self.showInput();
self.setActiveItem(null);
self.refreshOptions(!!self.settings.openOnFocus);
} self.refreshState();
}, /**
* Triggered on <input> blur.
*
* @param {object} e
* @returns {boolean}
*/
onBlur: function(e) {
var self = this;
self.isFocused = false;
if (self.ignoreFocus) return; self.close();
self.setTextboxValue('');
self.setActiveItem(null);
self.setActiveOption(null);
self.setCaret(self.items.length);
self.refreshState();
}, /**
* Triggered when the user rolls over
* an option in the autocomplete dropdown menu.
*
* @param {object} e
* @returns {boolean}
*/
onOptionHover: function(e) {
if (this.ignoreHover) return;
this.setActiveOption(e.currentTarget, false);
}, /**
* Triggered when the user clicks on an option
* in the autocomplete dropdown menu.
*
* @param {object} e
* @returns {boolean}
*/
onOptionSelect: function(e) {
var value, $target, $option, self = this; if (e.preventDefault) {
e.preventDefault();
e.stopPropagation();
} $target = $(e.currentTarget);
if ($target.hasClass('create')) {
self.createItem();
} else {
value = $target.attr('data-value');
if (value) {
self.setTextboxValue('');
self.addItem(value);
if (!self.settings.hideSelected && e.type && /mouse/.test(e.type)) {
self.setActiveOption(self.getOption(value));
}
}
}
}, /**
* Triggered when the user clicks on an item
* that has been selected.
*
* @param {object} e
* @returns {boolean}
*/
onItemSelect: function(e) {
var self = this; if (self.isLocked) return;
if (self.settings.mode === 'multi') {
e.preventDefault();
self.setActiveItem(e.currentTarget, e);
}
}, /**
* Invokes the provided method that provides
* results to a callback---which are then added
* as options to the control.
*
* @param {function} fn
*/
load: function(fn) {
var self = this;
var $wrapper = self.$wrapper.addClass('loading'); self.loading++;
fn.apply(self, [function(results) {
self.loading = Math.max(self.loading - 1, 0);
if (results && results.length) {
self.addOption(results);
self.refreshOptions(self.isFocused && !self.isInputHidden);
}
if (!self.loading) {
$wrapper.removeClass('loading');
}
self.trigger('load', results);
}]);
}, /**
* Sets the input field of the control to the specified value.
*
* @param {string} value
*/
setTextboxValue: function(value) {
this.$control_input.val(value).triggerHandler('update');
this.lastValue = value;
}, /**
* Returns the value of the control. If multiple items
* can be selected (e.g. <select multiple>), this returns
* an array. If only one item can be selected, this
* returns a string.
*
* @returns {mixed}
*/
getValue: function() {
if (this.tagType === TAG_SELECT && this.$input.attr('multiple')) {
return this.items;
} else {
return this.items.join(this.settings.delimiter);
}
}, /**
* Resets the selected items to the given value.
*
* @param {mixed} value
*/
setValue: function(value) {
debounce_events(this, ['change'], function() {
this.clear();
var items = $.isArray(value) ? value : [value];
for (var i = 0, n = items.length; i < n; i++) {
this.addItem(items[i]);
}
});
}, /**
* Sets the selected item.
*
* @param {object} $item
* @param {object} e (optional)
*/
setActiveItem: function($item, e) {
var self = this;
var eventName;
var i, idx, begin, end, item, swap;
var $last; if (self.settings.mode === 'single') return;
$item = $($item); // clear the active selection
if (!$item.length) {
$(self.$activeItems).removeClass('active');
self.$activeItems = [];
if (self.isFocused) {
self.showInput();
}
return;
} // modify selection
eventName = e && e.type.toLowerCase(); if (eventName === 'mousedown' && self.isShiftDown && self.$activeItems.length) {
$last = self.$control.children('.active:last');
begin = Array.prototype.indexOf.apply(self.$control[0].childNodes, [$last[0]]);
end = Array.prototype.indexOf.apply(self.$control[0].childNodes, [$item[0]]);
if (begin > end) {
swap = begin;
begin = end;
end = swap;
}
for (i = begin; i <= end; i++) {
item = self.$control[0].childNodes[i];
if (self.$activeItems.indexOf(item) === -1) {
$(item).addClass('active');
self.$activeItems.push(item);
}
}
e.preventDefault();
} else if ((eventName === 'mousedown' && self.isCtrlDown) || (eventName === 'keydown' && this.isShiftDown)) {
if ($item.hasClass('active')) {
idx = self.$activeItems.indexOf($item[0]);
self.$activeItems.splice(idx, 1);
$item.removeClass('active');
} else {
self.$activeItems.push($item.addClass('active')[0]);
}
} else {
$(self.$activeItems).removeClass('active');
self.$activeItems = [$item.addClass('active')[0]];
} // ensure control has focus
self.hideInput();
if (!this.isFocused) {
self.focus();
}
}, /**
* Sets the selected item in the dropdown menu
* of available options.
*
* @param {object} $object
* @param {boolean} scroll
* @param {boolean} animate
*/
setActiveOption: function($option, scroll, animate) {
var height_menu, height_item, y;
var scroll_top, scroll_bottom;
var self = this; if (self.$activeOption) self.$activeOption.removeClass('active');
self.$activeOption = null; $option = $($option);
if (!$option.length) return; self.$activeOption = $option.addClass('active'); if (scroll || !isset(scroll)) { height_menu = self.$dropdown_content.height();
height_item = self.$activeOption.outerHeight(true);
scroll = self.$dropdown_content.scrollTop() || 0;
y = self.$activeOption.offset().top - self.$dropdown_content.offset().top + scroll;
scroll_top = y;
scroll_bottom = y - height_menu + height_item; if (y + height_item > height_menu + scroll) {
self.$dropdown_content.stop().animate({scrollTop: scroll_bottom}, animate ? self.settings.scrollDuration : 0);
} else if (y < scroll) {
self.$dropdown_content.stop().animate({scrollTop: scroll_top}, animate ? self.settings.scrollDuration : 0);
} }
}, /**
* Selects all items (CTRL + A).
*/
selectAll: function() {
this.$activeItems = Array.prototype.slice.apply(this.$control.children(':not(input)').addClass('active'));
if (this.$activeItems.length) {
this.hideInput();
this.close();
}
this.focus();
}, /**
* Hides the input element out of view, while
* retaining its focus.
*/
hideInput: function() {
var self = this; self.setTextboxValue('');
self.$control_input.css({opacity: 0, position: 'absolute', left: self.rtl ? 10000 : -10000});
self.isInputHidden = true;
}, /**
* Restores input visibility.
*/
showInput: function() {
this.$control_input.css({opacity: 1, position: 'relative', left: 0});
this.isInputHidden = false;
}, /**
* Gives the control focus. If "trigger" is falsy,
* focus handlers won't be fired--causing the focus
* to happen silently in the background.
*
* @param {boolean} trigger
*/
focus: function() {
var self = this;
if (self.isDisabled) return; self.ignoreFocus = true;
self.$control_input[0].focus();
window.setTimeout(function() {
self.ignoreFocus = false;
self.onFocus();
}, 0);
}, /**
* Forces the control out of focus.
*/
blur: function() {
this.$control_input.trigger('blur');
}, /**
* Returns a function that scores an object
* to show how good of a match it is to the
* provided query.
*
* @param {string} query
* @param {object} options
* @return {function}
*/
getScoreFunction: function(query) {
return this.sifter.getScoreFunction(query, this.getSearchOptions());
}, /**
* Returns search options for sifter (the system
* for scoring and sorting results).
*
* @see https://github.com/brianreavis/sifter.js
* @return {object}
*/
getSearchOptions: function() {
var settings = this.settings;
var sort = settings.sortField;
if (typeof sort === 'string') {
sort = {field: sort};
} return {
fields : settings.searchField,
conjunction : settings.searchConjunction,
sort : sort
};
}, /**
* Searches through available options and returns
* a sorted array of matches.
*
* Returns an object containing:
*
* - query {string}
* - tokens {array}
* - total {int}
* - items {array}
*
* @param {string} query
* @returns {object}
*/
search: function(query) {
var i, value, score, result, calculateScore;
var self = this;
var settings = self.settings;
var options = this.getSearchOptions(); // validate user-provided result scoring function
if (settings.score) {
calculateScore = self.settings.score.apply(this, [query]);
if (typeof calculateScore !== 'function') {
throw new Error('Selectize "score" setting must be a function that returns a function');
}
} // perform search
if (query !== self.lastQuery) {
self.lastQuery = query;
result = self.sifter.search(query, $.extend(options, {score: calculateScore}));
self.currentResults = result;
} else {
result = $.extend(true, {}, self.currentResults);
} // filter out selected items
if (settings.hideSelected) {
for (i = result.items.length - 1; i >= 0; i--) {
if (self.items.indexOf(hash_key(result.items[i].id)) !== -1) {
result.items.splice(i, 1);
}
}
} return result;
}, /**
* Refreshes the list of available options shown
* in the autocomplete dropdown menu.
*
* @param {boolean} triggerDropdown
*/
refreshOptions: function(triggerDropdown) {
var i, j, k, n, groups, groups_order, option, option_html, optgroup, optgroups, html, html_children, has_create_option;
var $active, $active_before, $create; if (typeof triggerDropdown === 'undefined') {
triggerDropdown = true;
} var self = this;
var query = self.$control_input.val();
var results = self.search(query);
var $dropdown_content = self.$dropdown_content;
var active_before = self.$activeOption && hash_key(self.$activeOption.attr('data-value')); // build markup
n = results.items.length;
if (typeof self.settings.maxOptions === 'number') {
n = Math.min(n, self.settings.maxOptions);
} // render and group available options individually
groups = {}; if (self.settings.optgroupOrder) {
groups_order = self.settings.optgroupOrder;
for (i = 0; i < groups_order.length; i++) {
groups[groups_order[i]] = [];
}
} else {
groups_order = [];
} for (i = 0; i < n; i++) {
option = self.options[results.items[i].id];
option_html = self.render('option', option);
optgroup = option[self.settings.optgroupField] || '';
optgroups = $.isArray(optgroup) ? optgroup : [optgroup]; for (j = 0, k = optgroups && optgroups.length; j < k; j++) {
optgroup = optgroups[j];
if (!self.optgroups.hasOwnProperty(optgroup)) {
optgroup = '';
}
if (!groups.hasOwnProperty(optgroup)) {
groups[optgroup] = [];
groups_order.push(optgroup);
}
groups[optgroup].push(option_html);
}
} // render optgroup headers & join groups
html = [];
for (i = 0, n = groups_order.length; i < n; i++) {
optgroup = groups_order[i];
if (self.optgroups.hasOwnProperty(optgroup) && groups[optgroup].length) {
// render the optgroup header and options within it,
// then pass it to the wrapper template
html_children = self.render('optgroup_header', self.optgroups[optgroup]) || '';
html_children += groups[optgroup].join('');
html.push(self.render('optgroup', $.extend({}, self.optgroups[optgroup], {
html: html_children
})));
} else {
html.push(groups[optgroup].join(''));
}
} $dropdown_content.html(html.join('')); // highlight matching terms inline
if (self.settings.highlight && results.query.length && results.tokens.length) {
for (i = 0, n = results.tokens.length; i < n; i++) {
highlight($dropdown_content, results.tokens[i].regex);
}
} // add "selected" class to selected options
if (!self.settings.hideSelected) {
for (i = 0, n = self.items.length; i < n; i++) {
self.getOption(self.items[i]).addClass('selected');
}
} // add create option
has_create_option = self.settings.create && results.query.length;
if (has_create_option) {
$dropdown_content.prepend(self.render('option_create', {input: query}));
$create = $($dropdown_content[0].childNodes[0]);
} // activate
self.hasOptions = results.items.length > 0 || has_create_option;
if (self.hasOptions) {
if (results.items.length > 0) {
$active_before = active_before && self.getOption(active_before);
if ($active_before && $active_before.length) {
$active = $active_before;
} else if (self.settings.mode === 'single' && self.items.length) {
$active = self.getOption(self.items[0]);
}
if (!$active || !$active.length) {
if ($create && !self.settings.addPrecedence) {
$active = self.getAdjacentOption($create, 1);
} else {
$active = $dropdown_content.find('[data-selectable]:first');
}
}
} else {
$active = $create;
}
self.setActiveOption($active);
if (triggerDropdown && !self.isOpen) { self.open(); }
} else {
self.setActiveOption(null);
if (triggerDropdown && self.isOpen) { self.close(); }
}
}, /**
* Adds an available option. If it already exists,
* nothing will happen. Note: this does not refresh
* the options list dropdown (use `refreshOptions`
* for that).
*
* Usage:
*
* this.addOption(data)
*
* @param {object} data
*/
addOption: function(data) {
var i, n, optgroup, value, self = this; if ($.isArray(data)) {
for (i = 0, n = data.length; i < n; i++) {
self.addOption(data[i]);
}
return;
} value = hash_key(data[self.settings.valueField]);
if (!value || self.options.hasOwnProperty(value)) return; self.userOptions[value] = true;
self.options[value] = data;
self.lastQuery = null;
self.trigger('option_add', value, data);
}, /**
* Registers a new optgroup for options
* to be bucketed into.
*
* @param {string} id
* @param {object} data
*/
addOptionGroup: function(id, data) {
this.optgroups[id] = data;
this.trigger('optgroup_add', id, data);
}, /**
* Updates an option available for selection. If
* it is visible in the selected items or options
* dropdown, it will be re-rendered automatically.
*
* @param {string} value
* @param {object} data
*/
updateOption: function(value, data) {
var self = this;
var $item, $item_new;
var value_new, index_item, cache_items, cache_options; value = hash_key(value);
value_new = hash_key(data[self.settings.valueField]); // sanity checks
if (!self.options.hasOwnProperty(value)) return;
if (!value_new) throw new Error('Value must be set in option data'); // update references
if (value_new !== value) {
delete self.options[value];
index_item = self.items.indexOf(value);
if (index_item !== -1) {
self.items.splice(index_item, 1, value_new);
}
}
self.options[value_new] = data; // invalidate render cache
cache_items = self.renderCache['item'];
cache_options = self.renderCache['option']; if (isset(cache_items)) {
delete cache_items[value];
delete cache_items[value_new];
}
if (isset(cache_options)) {
delete cache_options[value];
delete cache_options[value_new];
} // update the item if it's selected
if (self.items.indexOf(value_new) !== -1) {
$item = self.getItem(value);
$item_new = $(self.render('item', data));
if ($item.hasClass('active')) $item_new.addClass('active');
$item.replaceWith($item_new);
} // update dropdown contents
if (self.isOpen) {
self.refreshOptions(false);
}
}, /**
* Removes a single option.
*
* @param {string} value
*/
removeOption: function(value) {
var self = this; value = hash_key(value);
delete self.userOptions[value];
delete self.options[value];
self.lastQuery = null;
self.trigger('option_remove', value);
self.removeItem(value);
}, /**
* Clears all options.
*/
clearOptions: function() {
var self = this; self.loadedSearches = {};
self.userOptions = {};
self.options = self.sifter.items = {};
self.lastQuery = null;
self.trigger('option_clear');
self.clear();
}, /**
* Returns the jQuery element of the option
* matching the given value.
*
* @param {string} value
* @returns {object}
*/
getOption: function(value) {
return this.getElementWithValue(value, this.$dropdown_content.find('[data-selectable]'));
}, /**
* Returns the jQuery element of the next or
* previous selectable option.
*
* @param {object} $option
* @param {int} direction can be 1 for next or -1 for previous
* @return {object}
*/
getAdjacentOption: function($option, direction) {
var $options = this.$dropdown.find('[data-selectable]');
var index = $options.index($option) + direction; return index >= 0 && index < $options.length ? $options.eq(index) : $();
}, /**
* Finds the first element with a "data-value" attribute
* that matches the given value.
*
* @param {mixed} value
* @param {object} $els
* @return {object}
*/
getElementWithValue: function(value, $els) {
value = hash_key(value); if (value) {
for (var i = 0, n = $els.length; i < n; i++) {
if ($els[i].getAttribute('data-value') === value) {
return $($els[i]);
}
}
} return $();
}, /**
* Returns the jQuery element of the item
* matching the given value.
*
* @param {string} value
* @returns {object}
*/
getItem: function(value) {
return this.getElementWithValue(value, this.$control.children());
}, /**
* "Selects" an item. Adds it to the list
* at the current caret position.
*
* @param {string} value
*/
addItem: function(value) {
debounce_events(this, ['change'], function() {
var $item, $option;
var self = this;
var inputMode = self.settings.mode;
var i, active, options, value_next;
value = hash_key(value); if (self.items.indexOf(value) !== -1) {
if (inputMode === 'single') self.close();
return;
} if (!self.options.hasOwnProperty(value)) return;
if (inputMode === 'single') self.clear();
if (inputMode === 'multi' && self.isFull()) return; $item = $(self.render('item', self.options[value]));
self.items.splice(self.caretPos, 0, value);
self.insertAtCaret($item);
self.refreshState(); if (self.isSetup) {
options = self.$dropdown_content.find('[data-selectable]'); // update menu / remove the option
$option = self.getOption(value);
value_next = self.getAdjacentOption($option, 1).attr('data-value');
self.refreshOptions(self.isFocused && inputMode !== 'single');
if (value_next) {
self.setActiveOption(self.getOption(value_next));
} // hide the menu if the maximum number of items have been selected or no options are left
if (!options.length || (self.settings.maxItems !== null && self.items.length >= self.settings.maxItems)) {
self.close();
} else {
self.positionDropdown();
} self.updatePlaceholder();
self.trigger('item_add', value, $item);
self.updateOriginalInput();
}
});
}, /**
* Removes the selected item matching
* the provided value.
*
* @param {string} value
*/
removeItem: function(value) {
var self = this;
var $item, i, idx; $item = (typeof value === 'object') ? value : self.getItem(value);
value = hash_key($item.attr('data-value'));
i = self.items.indexOf(value); if (i !== -1) {
$item.remove();
if ($item.hasClass('active')) {
idx = self.$activeItems.indexOf($item[0]);
self.$activeItems.splice(idx, 1);
} self.items.splice(i, 1);
self.lastQuery = null;
if (!self.settings.persist && self.userOptions.hasOwnProperty(value)) {
self.removeOption(value);
} if (i < self.caretPos) {
self.setCaret(self.caretPos - 1);
} self.refreshState();
self.updatePlaceholder();
self.updateOriginalInput();
self.positionDropdown();
self.trigger('item_remove', value);
}
}, /**
* Invokes the `create` method provided in the
* selectize options that should provide the data
* for the new item, given the user input.
*
* Once this completes, it will be added
* to the item list.
*/
createItem: function() {
var self = this;
var input = $.trim(self.$control_input.val() || '');
var caret = self.caretPos;
if (!input.length) return;
self.lock(); var setup = (typeof self.settings.create === 'function') ? this.settings.create : function(input) {
var data = {};
data[self.settings.labelField] = input;
data[self.settings.valueField] = input;
return data;
}; var create = once(function(data) {
self.unlock(); if (!data || typeof data !== 'object') return;
var value = hash_key(data[self.settings.valueField]);
if (!value) return; self.setTextboxValue('');
self.addOption(data);
self.setCaret(caret);
self.addItem(value);
self.refreshOptions(self.settings.mode !== 'single');
}); var output = setup.apply(this, [input, create]);
if (typeof output !== 'undefined') {
create(output);
}
}, /**
* Re-renders the selected item lists.
*/
refreshItems: function() {
this.lastQuery = null; if (this.isSetup) {
for (var i = 0; i < this.items.length; i++) {
this.addItem(this.items);
}
} this.refreshState();
this.updateOriginalInput();
}, /**
* Updates all state-dependent attributes
* and CSS classes.
*/
refreshState: function() {
var self = this;
var invalid = self.isRequired && !self.items.length;
if (!invalid) self.isInvalid = false;
self.$control_input.prop('required', invalid);
self.refreshClasses();
}, /**
* Updates all state-dependent CSS classes.
*/
refreshClasses: function() {
var self = this;
var isFull = self.isFull();
var isLocked = self.isLocked; self.$wrapper
.toggleClass('rtl', self.rtl); self.$control
.toggleClass('focus', self.isFocused)
.toggleClass('disabled', self.isDisabled)
.toggleClass('required', self.isRequired)
.toggleClass('invalid', self.isInvalid)
.toggleClass('locked', isLocked)
.toggleClass('full', isFull).toggleClass('not-full', !isFull)
.toggleClass('input-active', self.isFocused && !self.isInputHidden)
.toggleClass('dropdown-active', self.isOpen)
.toggleClass('has-options', !$.isEmptyObject(self.options))
.toggleClass('has-items', self.items.length > 0); self.$control_input.data('grow', !isFull && !isLocked);
}, /**
* Determines whether or not more items can be added
* to the control without exceeding the user-defined maximum.
*
* @returns {boolean}
*/
isFull: function() {
return this.settings.maxItems !== null && this.items.length >= this.settings.maxItems;
}, /**
* Refreshes the original <select> or <input>
* element to reflect the current state.
*/
updateOriginalInput: function() {
var i, n, options, self = this; if (self.$input[0].tagName.toLowerCase() === 'select') {
options = [];
for (i = 0, n = self.items.length; i < n; i++) {
options.push('<option value="' + escape_html(self.items[i]) + '" selected="selected"></option>');
}
if (!options.length && !this.$input.attr('multiple')) {
options.push('<option value="" selected="selected"></option>');
}
self.$input.html(options.join(''));
} else {
self.$input.val(self.getValue());
} if (self.isSetup) {
self.trigger('change', self.$input.val());
}
}, /**
* Shows/hide the input placeholder depending
* on if there items in the list already.
*/
updatePlaceholder: function() {
if (!this.settings.placeholder) return;
var $input = this.$control_input; if (this.items.length) {
$input.removeAttr('placeholder');
} else {
$input.attr('placeholder', this.settings.placeholder);
}
$input.triggerHandler('update');
}, /**
* Shows the autocomplete dropdown containing
* the available options.
*/
open: function() {
var self = this; if (self.isLocked || self.isOpen || (self.settings.mode === 'multi' && self.isFull())) return;
self.focus();
self.isOpen = true;
self.refreshState();
self.$dropdown.css({visibility: 'hidden', display: 'block'});
self.positionDropdown();
self.$dropdown.css({visibility: 'visible'});
self.trigger('dropdown_open', self.$dropdown);
}, /**
* Closes the autocomplete dropdown menu.
*/
close: function() {
var self = this;
var trigger = self.isOpen; if (self.settings.mode === 'single' && self.items.length) {
self.hideInput();
} self.isOpen = false;
self.$dropdown.hide();
self.setActiveOption(null);
self.refreshState(); if (trigger) self.trigger('dropdown_close', self.$dropdown);
}, /**
* Calculates and applies the appropriate
* position of the dropdown.
*/
positionDropdown: function() {
var $control = this.$control;
var offset = this.settings.dropdownParent === 'body' ? $control.offset() : $control.position();
offset.top += $control.outerHeight(true); this.$dropdown.css({
width : $control.outerWidth(),
top : offset.top,
left : offset.left
});
}, /**
* Resets / clears all selected items
* from the control.
*/
clear: function() {
var self = this; if (!self.items.length) return;
self.$control.children(':not(input)').remove();
self.items = [];
self.setCaret(0);
self.updatePlaceholder();
self.updateOriginalInput();
self.refreshState();
self.showInput();
self.trigger('clear');
}, /**
* A helper method for inserting an element
* at the current caret position.
*
* @param {object} $el
*/
insertAtCaret: function($el) {
var caret = Math.min(this.caretPos, this.items.length);
if (caret === 0) {
this.$control.prepend($el);
} else {
$(this.$control[0].childNodes[caret]).before($el);
}
this.setCaret(caret + 1);
}, /**
* Removes the current selected item(s).
*
* @param {object} e (optional)
* @returns {boolean}
*/
deleteSelection: function(e) {
var i, n, direction, selection, values, caret, option_select, $option_select, $tail;
var self = this; direction = (e && e.keyCode === KEY_BACKSPACE) ? -1 : 1;
selection = getSelection(self.$control_input[0]); if (self.$activeOption && !self.settings.hideSelected) {
option_select = self.getAdjacentOption(self.$activeOption, -1).attr('data-value');
} // determine items that will be removed
values = []; if (self.$activeItems.length) {
$tail = self.$control.children('.active:' + (direction > 0 ? 'last' : 'first'));
caret = self.$control.children(':not(input)').index($tail);
if (direction > 0) { caret++; } for (i = 0, n = self.$activeItems.length; i < n; i++) {
values.push($(self.$activeItems[i]).attr('data-value'));
}
if (e) {
e.preventDefault();
e.stopPropagation();
}
} else if ((self.isFocused || self.settings.mode === 'single') && self.items.length) {
if (direction < 0 && selection.start === 0 && selection.length === 0) {
values.push(self.items[self.caretPos - 1]);
} else if (direction > 0 && selection.start === self.$control_input.val().length) {
values.push(self.items[self.caretPos]);
}
} // allow the callback to abort
if (!values.length || (typeof self.settings.onDelete === 'function' && self.settings.onDelete.apply(self, [values]) === false)) {
return false;
} // perform removal
if (typeof caret !== 'undefined') {
self.setCaret(caret);
}
while (values.length) {
self.removeItem(values.pop());
} self.showInput();
self.refreshOptions(true); // select previous option
if (option_select) {
$option_select = self.getOption(option_select);
if ($option_select.length) {
self.setActiveOption($option_select);
}
} return true;
}, /**
* Selects the previous / next item (depending
* on the `direction` argument).
*
* > 0 - right
* < 0 - left
*
* @param {int} direction
* @param {object} e (optional)
*/
advanceSelection: function(direction, e) {
var tail, selection, idx, valueLength, cursorAtEdge, $tail;
var self = this; if (direction === 0) return;
if (self.rtl) direction *= -1; tail = direction > 0 ? 'last' : 'first';
selection = getSelection(self.$control_input[0]); if (self.isFocused && !self.isInputHidden) {
valueLength = self.$control_input.val().length;
cursorAtEdge = direction < 0
? selection.start === 0 && selection.length === 0
: selection.start === valueLength; if (cursorAtEdge && !valueLength) {
self.advanceCaret(direction, e);
}
} else {
$tail = self.$control.children('.active:' + tail);
if ($tail.length) {
idx = self.$control.children(':not(input)').index($tail);
self.setActiveItem(null);
self.setCaret(direction > 0 ? idx + 1 : idx);
}
}
}, /**
* Moves the caret left / right.
*
* @param {int} direction
* @param {object} e (optional)
*/
advanceCaret: function(direction, e) {
var self = this, fn, $adj; if (direction === 0) return; fn = direction > 0 ? 'next' : 'prev';
if (self.isShiftDown) {
$adj = self.$control_input[fn]();
if ($adj.length) {
self.hideInput();
self.setActiveItem($adj);
e && e.preventDefault();
}
} else {
self.setCaret(self.caretPos + direction);
}
}, /**
* Moves the caret to the specified index.
*
* @param {int} i
*/
setCaret: function(i) {
var self = this; if (self.settings.mode === 'single') {
i = self.items.length;
} else {
i = Math.max(0, Math.min(self.items.length, i));
} // the input must be moved by leaving it in place and moving the
// siblings, due to the fact that focus cannot be restored once lost
// on mobile webkit devices
var j, n, fn, $children, $child;
$children = self.$control.children(':not(input)');
for (j = 0, n = $children.length; j < n; j++) {
$child = $($children[j]).detach();
if (j < i) {
self.$control_input.before($child);
} else {
self.$control.append($child);
}
} self.caretPos = i;
}, /**
* Disables user input on the control. Used while
* items are being asynchronously created.
*/
lock: function() {
this.close();
this.isLocked = true;
this.refreshState();
}, /**
* Re-enables user input on the control.
*/
unlock: function() {
this.isLocked = false;
this.refreshState();
}, /**
* Disables user input on the control completely.
* While disabled, it cannot receive focus.
*/
disable: function() {
var self = this;
self.$input.prop('disabled', true);
self.isDisabled = true;
self.lock();
}, /**
* Enables the control so that it can respond
* to focus and user input.
*/
enable: function() {
var self = this;
self.$input.prop('disabled', false);
self.isDisabled = false;
self.unlock();
}, /**
* Completely destroys the control and
* unbinds all event listeners so that it can
* be garbage collected.
*/
destroy: function() {
var self = this;
var eventNS = self.eventNS;
var revertSettings = self.revertSettings; self.trigger('destroy');
self.off();
self.$wrapper.remove();
self.$dropdown.remove(); self.$input
.html('')
.append(revertSettings.$children)
.removeAttr('tabindex')
.attr({tabindex: revertSettings.tabindex})
.show(); $(window).off(eventNS);
$(document).off(eventNS);
$(document.body).off(eventNS); delete self.$input[0].selectize;
}, /**
* A helper method for rendering "item" and
* "option" templates, given the data.
*
* @param {string} templateName
* @param {object} data
* @returns {string}
*/
render: function(templateName, data) {
var value, id, label;
var html = '';
var cache = false;
var self = this;
var regex_tag = /^[\t ]*<([a-z][a-z0-9\-_]*(?:\:[a-z][a-z0-9\-_]*)?)/i; if (templateName === 'option' || templateName === 'item') {
value = hash_key(data[self.settings.valueField]);
cache = !!value;
} // pull markup from cache if it exists
if (cache) {
if (!isset(self.renderCache[templateName])) {
self.renderCache[templateName] = {};
}
if (self.renderCache[templateName].hasOwnProperty(value)) {
return self.renderCache[templateName][value];
}
} // render markup
html = self.settings.render[templateName].apply(this, [data, escape_html]); // add mandatory attributes
if (templateName === 'option' || templateName === 'option_create') {
html = html.replace(regex_tag, '<$1 data-selectable');
}
if (templateName === 'optgroup') {
id = data[self.settings.optgroupValueField] || '';
html = html.replace(regex_tag, '<$1 data-group="' + escape_replace(escape_html(id)) + '"');
}
if (templateName === 'option' || templateName === 'item') {
html = html.replace(regex_tag, '<$1 data-value="' + escape_replace(escape_html(value || '')) + '"');
} // update cache
if (cache) {
self.renderCache[templateName][value] = html;
} return html;
} }); Selectize.count = 0;
Selectize.defaults = {
plugins: [],
delimiter: ',',
persist: true,
diacritics: true,
create: false,
highlight: true,
openOnFocus: true,
maxOptions: 1000,
maxItems: null,
hideSelected: null,
addPrecedence: false,
preload: false, scrollDuration: 60,
loadThrottle: 300, dataAttr: 'data-data',
optgroupField: 'optgroup',
valueField: 'value',
labelField: 'text',
optgroupLabelField: 'label',
optgroupValueField: 'value',
optgroupOrder: null, sortField: '$order',
searchField: ['text'],
searchConjunction: 'and', mode: null,
wrapperClass: 'selectize-control',
inputClass: 'selectize-input',
dropdownClass: 'selectize-dropdown',
dropdownContentClass: 'selectize-dropdown-content', dropdownParent: null, /*
load : null, // function(query, callback) { ... }
score : null, // function(search) { ... }
onInitialize : null, // function() { ... }
onChange : null, // function(value) { ... }
onItemAdd : null, // function(value, $item) { ... }
onItemRemove : null, // function(value) { ... }
onClear : null, // function() { ... }
onOptionAdd : null, // function(value, data) { ... }
onOptionRemove : null, // function(value) { ... }
onOptionClear : null, // function() { ... }
onDropdownOpen : null, // function($dropdown) { ... }
onDropdownClose : null, // function($dropdown) { ... }
onType : null, // function(str) { ... }
onDelete : null, // function(values) { ... }
*/ render: {
/*
item: null,
optgroup: null,
optgroup_header: null,
option: null,
option_create: null
*/
}
}; $.fn.selectize = function(settings_user) {
var defaults = $.fn.selectize.defaults;
var settings = $.extend({}, defaults, settings_user);
var attr_data = settings.dataAttr;
var field_label = settings.labelField;
var field_value = settings.valueField;
var field_optgroup = settings.optgroupField;
var field_optgroup_label = settings.optgroupLabelField;
var field_optgroup_value = settings.optgroupValueField; /**
* Initializes selectize from a <input type="text"> element.
*
* @param {object} $input
* @param {object} settings_element
*/
var init_textbox = function($input, settings_element) {
var i, n, values, option, value = $.trim($input.val() || '');
if (!value.length) return; values = value.split(settings.delimiter);
for (i = 0, n = values.length; i < n; i++) {
option = {};
option[field_label] = values[i];
option[field_value] = values[i]; settings_element.options[values[i]] = option;
} settings_element.items = values;
}; /**
* Initializes selectize from a <select> element.
*
* @param {object} $input
* @param {object} settings_element
*/
var init_select = function($input, settings_element) {
var i, n, tagName, $children, order = 0;
var options = settings_element.options; var readData = function($el) {
var data = attr_data && $el.attr(attr_data);
if (typeof data === 'string' && data.length) {
return JSON.parse(data);
}
return null;
}; var addOption = function($option, group) {
var value, option; $option = $($option); value = $option.attr('value') || '';
if (!value.length) return; // if the option already exists, it's probably been
// duplicated in another optgroup. in this case, push
// the current group to the "optgroup" property on the
// existing option so that it's rendered in both places.
if (options.hasOwnProperty(value)) {
if (group) {
if (!options[value].optgroup) {
options[value].optgroup = group;
} else if (!$.isArray(options[value].optgroup)) {
options[value].optgroup = [options[value].optgroup, group];
} else {
options[value].optgroup.push(group);
}
}
return;
} option = readData($option) || {};
option[field_label] = option[field_label] || $option.text();
option[field_value] = option[field_value] || value;
option[field_optgroup] = option[field_optgroup] || group; option.$order = ++order;
options[value] = option; if ($option.is(':selected')) {
settings_element.items.push(value);
}
}; var addGroup = function($optgroup) {
var i, n, id, optgroup, $options; $optgroup = $($optgroup);
id = $optgroup.attr('label'); if (id) {
optgroup = readData($optgroup) || {};
optgroup[field_optgroup_label] = id;
optgroup[field_optgroup_value] = id;
settings_element.optgroups[id] = optgroup;
} $options = $('option', $optgroup);
for (i = 0, n = $options.length; i < n; i++) {
addOption($options[i], id);
}
}; settings_element.maxItems = $input.attr('multiple') ? null : 1; $children = $input.children();
for (i = 0, n = $children.length; i < n; i++) {
tagName = $children[i].tagName.toLowerCase();
if (tagName === 'optgroup') {
addGroup($children[i]);
} else if (tagName === 'option') {
addOption($children[i]);
}
}
}; return this.each(function() {
if (this.selectize) return; var instance;
var $input = $(this);
var tag_name = this.tagName.toLowerCase();
var settings_element = {
'placeholder' : $input.children('option[value=""]').text() || $input.attr('placeholder'),
'options' : {},
'optgroups' : {},
'items' : []
}; if (tag_name === 'select') {
init_select($input, settings_element);
} else {
init_textbox($input, settings_element);
} instance = new Selectize($input, $.extend(true, {}, defaults, settings_element, settings_user));
$input.data('selectize', instance);
$input.addClass('selectized');
});
}; $.fn.selectize.defaults = Selectize.defaults; Selectize.define('drag_drop', function(options) {
if (!$.fn.sortable) throw new Error('The "drag_drop" plugin requires jQuery UI "sortable".');
if (this.settings.mode !== 'multi') return;
var self = this; self.lock = (function() {
var original = self.lock;
return function() {
var sortable = self.$control.data('sortable');
if (sortable) sortable.disable();
return original.apply(self, arguments);
};
})(); self.unlock = (function() {
var original = self.unlock;
return function() {
var sortable = self.$control.data('sortable');
if (sortable) sortable.enable();
return original.apply(self, arguments);
};
})(); self.setup = (function() {
var original = self.setup;
return function() {
original.apply(this, arguments); var $control = self.$control.sortable({
items: '[data-value]',
forcePlaceholderSize: true,
disabled: self.isLocked,
start: function(e, ui) {
ui.placeholder.css('width', ui.helper.css('width'));
$control.css({overflow: 'visible'});
},
stop: function() {
$control.css({overflow: 'hidden'});
var active = self.$activeItems ? self.$activeItems.slice() : null;
var values = [];
$control.children('[data-value]').each(function() {
values.push($(this).attr('data-value'));
});
self.setValue(values);
self.setActiveItem(active);
}
});
};
})(); }); Selectize.define('dropdown_header', function(options) {
var self = this; options = $.extend({
title : 'Untitled',
headerClass : 'selectize-dropdown-header',
titleRowClass : 'selectize-dropdown-header-title',
labelClass : 'selectize-dropdown-header-label',
closeClass : 'selectize-dropdown-header-close', html: function(data) {
return (
'<div class="' + data.headerClass + '">' +
'<div class="' + data.titleRowClass + '">' +
'<span class="' + data.labelClass + '">' + data.title + '</span>' +
'<a href="javascript:void(0)" class="' + data.closeClass + '">&times;</a>' +
'</div>' +
'</div>'
);
}
}, options); self.setup = (function() {
var original = self.setup;
return function() {
original.apply(self, arguments);
self.$dropdown_header = $(options.html(options));
self.$dropdown.prepend(self.$dropdown_header);
};
})(); }); Selectize.define('optgroup_columns', function(options) {
var self = this; options = $.extend({
equalizeWidth : true,
equalizeHeight : true
}, options); this.getAdjacentOption = function($option, direction) {
var $options = $option.closest('[data-group]').find('[data-selectable]');
var index = $options.index($option) + direction; return index >= 0 && index < $options.length ? $options.eq(index) : $();
}; this.onKeyDown = (function() {
var original = self.onKeyDown;
return function(e) {
var index, $option, $options, $optgroup; if (this.isOpen && (e.keyCode === KEY_LEFT || e.keyCode === KEY_RIGHT)) {
self.ignoreHover = true;
$optgroup = this.$activeOption.closest('[data-group]');
index = $optgroup.find('[data-selectable]').index(this.$activeOption); if(e.keyCode === KEY_LEFT) {
$optgroup = $optgroup.prev('[data-group]');
} else {
$optgroup = $optgroup.next('[data-group]');
} $options = $optgroup.find('[data-selectable]');
$option = $options.eq(Math.min($options.length - 1, index));
if ($option.length) {
this.setActiveOption($option);
}
return;
} return original.apply(this, arguments);
};
})(); var equalizeSizes = function() {
var i, n, height_max, width, width_last, width_parent, $optgroups; $optgroups = $('[data-group]', self.$dropdown_content);
n = $optgroups.length;
if (!n || !self.$dropdown_content.width()) return; if (options.equalizeHeight) {
height_max = 0;
for (i = 0; i < n; i++) {
height_max = Math.max(height_max, $optgroups.eq(i).height());
}
$optgroups.css({height: height_max});
} if (options.equalizeWidth) {
width_parent = self.$dropdown_content.innerWidth();
width = Math.round(width_parent / n);
$optgroups.css({width: width});
if (n > 1) {
width_last = width_parent - width * (n - 1);
$optgroups.eq(n - 1).css({width: width_last});
}
}
}; if (options.equalizeHeight || options.equalizeWidth) {
hook.after(this, 'positionDropdown', equalizeSizes);
hook.after(this, 'refreshOptions', equalizeSizes);
} }); Selectize.define('remove_button', function(options) {
if (this.settings.mode === 'single') return; options = $.extend({
label : '&times;',
title : 'Remove',
className : 'remove',
append : true
}, options); var self = this;
var html = '<a href="javascript:void(0)" class="' + options.className + '" tabindex="-1" title="' + escape_html(options.title) + '">' + options.label + '</a>'; /**
* Appends an element as a child (with raw HTML).
*
* @param {string} html_container
* @param {string} html_element
* @return {string}
*/
var append = function(html_container, html_element) {
var pos = html_container.search(/(<\/[^>]+>\s*)$/);
return html_container.substring(0, pos) + html_element + html_container.substring(pos);
}; this.setup = (function() {
var original = self.setup;
return function() {
// override the item rendering method to add the button to each
if (options.append) {
var render_item = self.settings.render.item;
self.settings.render.item = function(data) {
return append(render_item.apply(this, arguments), html);
};
} original.apply(this, arguments); // add event listener
this.$control.on('click', '.' + options.className, function(e) {
e.preventDefault();
if (self.isLocked) return; var $item = $(e.target).parent();
self.setActiveItem($item);
if (self.deleteSelection()) {
self.setCaret(self.items.length);
}
}); };
})(); }); Selectize.define('restore_on_backspace', function(options) {
var self = this; options.text = options.text || function(option) {
return option[this.settings.labelField];
}; this.onKeyDown = (function(e) {
var original = self.onKeyDown;
return function(e) {
var index, option;
if (e.keyCode === KEY_BACKSPACE && this.$control_input.val() === '' && !this.$activeItems.length) {
index = this.caretPos - 1;
if (index >= 0 && index < this.items.length) {
option = this.options[this.items[index]];
if (this.deleteSelection(e)) {
this.setTextboxValue(options.text.apply(this, [option]));
this.refreshOptions(true);
}
e.preventDefault();
return;
}
}
return original.apply(this, arguments);
};
})();
}); return Selectize;
}));