select2.js
3481 lines
| 142.7 KiB
| application/javascript
|
JavascriptLexer
|
r4128 | /* | ||
Copyright 2012 Igor Vaynberg | ||||
Version: 3.5.0 Timestamp: Mon Jun 16 19:29:44 EDT 2014 | ||||
This software is licensed under the Apache License, Version 2.0 (the "Apache License") or the GNU | ||||
General Public License version 2 (the "GPL License"). You may choose either license to govern your | ||||
use of this software only upon the condition that you accept all of the terms of either the Apache | ||||
License or the GPL License. | ||||
You may obtain a copy of the Apache License and the GPL License at: | ||||
http://www.apache.org/licenses/LICENSE-2.0 | ||||
http://www.gnu.org/licenses/gpl-2.0.html | ||||
Unless required by applicable law or agreed to in writing, software distributed under the | ||||
Apache License or the GPL License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR | ||||
CONDITIONS OF ANY KIND, either express or implied. See the Apache License and the GPL License for | ||||
the specific language governing permissions and limitations under the Apache License and the GPL License. | ||||
*/ | ||||
(function ($) { | ||||
if(typeof $.fn.each2 == "undefined") { | ||||
$.extend($.fn, { | ||||
/* | ||||
* 4-10 times faster .each replacement | ||||
* use it carefully, as it overrides jQuery context of element on each iteration | ||||
*/ | ||||
each2 : function (c) { | ||||
var j = $([0]), i = -1, l = this.length; | ||||
while ( | ||||
++i < l | ||||
&& (j.context = j[0] = this[i]) | ||||
&& c.call(j[0], i, j) !== false //"this"=DOM, i=index, j=jQuery object | ||||
); | ||||
return this; | ||||
} | ||||
}); | ||||
} | ||||
})(jQuery); | ||||
(function ($, undefined) { | ||||
"use strict"; | ||||
/*global document, window, jQuery, console */ | ||||
if (window.Select2 !== undefined) { | ||||
return; | ||||
} | ||||
var KEY, AbstractSelect2, SingleSelect2, MultiSelect2, nextUid, sizer, | ||||
lastMousePosition={x:0,y:0}, $document, scrollBarDimensions, | ||||
KEY = { | ||||
TAB: 9, | ||||
ENTER: 13, | ||||
ESC: 27, | ||||
SPACE: 32, | ||||
LEFT: 37, | ||||
UP: 38, | ||||
RIGHT: 39, | ||||
DOWN: 40, | ||||
SHIFT: 16, | ||||
CTRL: 17, | ||||
ALT: 18, | ||||
PAGE_UP: 33, | ||||
PAGE_DOWN: 34, | ||||
HOME: 36, | ||||
END: 35, | ||||
BACKSPACE: 8, | ||||
DELETE: 46, | ||||
isArrow: function (k) { | ||||
k = k.which ? k.which : k; | ||||
switch (k) { | ||||
case KEY.LEFT: | ||||
case KEY.RIGHT: | ||||
case KEY.UP: | ||||
case KEY.DOWN: | ||||
return true; | ||||
} | ||||
return false; | ||||
}, | ||||
isControl: function (e) { | ||||
var k = e.which; | ||||
switch (k) { | ||||
case KEY.SHIFT: | ||||
case KEY.CTRL: | ||||
case KEY.ALT: | ||||
return true; | ||||
} | ||||
if (e.metaKey) return true; | ||||
return false; | ||||
}, | ||||
isFunctionKey: function (k) { | ||||
k = k.which ? k.which : k; | ||||
return k >= 112 && k <= 123; | ||||
} | ||||
}, | ||||
MEASURE_SCROLLBAR_TEMPLATE = "<div class='select2-measure-scrollbar'></div>", | ||||
DIACRITICS = 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| ||||
$document = $(document); | ||||
nextUid=(function() { var counter=1; return function() { return counter++; }; }()); | ||||
function reinsertElement(element) { | ||||
var placeholder = $(document.createTextNode('')); | ||||
element.before(placeholder); | ||||
placeholder.before(element); | ||||
placeholder.remove(); | ||||
} | ||||
function stripDiacritics(str) { | ||||
// Used 'uni range + named function' from http://jsperf.com/diacritics/18 | ||||
function match(a) { | ||||
return DIACRITICS[a] || a; | ||||
} | ||||
return str.replace(/[^\u0000-\u007E]/g, match); | ||||
} | ||||
function indexOf(value, array) { | ||||
var i = 0, l = array.length; | ||||
for (; i < l; i = i + 1) { | ||||
if (equal(value, array[i])) return i; | ||||
} | ||||
return -1; | ||||
} | ||||
function measureScrollbar () { | ||||
var $template = $( MEASURE_SCROLLBAR_TEMPLATE ); | ||||
$template.appendTo('body'); | ||||
var dim = { | ||||
width: $template.width() - $template[0].clientWidth, | ||||
height: $template.height() - $template[0].clientHeight | ||||
}; | ||||
$template.remove(); | ||||
return dim; | ||||
} | ||||
/** | ||||
* Compares equality of a and b | ||||
* @param a | ||||
* @param b | ||||
*/ | ||||
function equal(a, b) { | ||||
if (a === b) return true; | ||||
if (a === undefined || b === undefined) return false; | ||||
if (a === null || b === null) return false; | ||||
// Check whether 'a' or 'b' is a string (primitive or object). | ||||
// The concatenation of an empty string (+'') converts its argument to a string's primitive. | ||||
if (a.constructor === String) return a+'' === b+''; // a+'' - in case 'a' is a String object | ||||
if (b.constructor === String) return b+'' === a+''; // b+'' - in case 'b' is a String object | ||||
return false; | ||||
} | ||||
/** | ||||
* Splits the string into an array of values, trimming each value. An empty array is returned for nulls or empty | ||||
* strings | ||||
* @param string | ||||
* @param separator | ||||
*/ | ||||
function splitVal(string, separator) { | ||||
var val, i, l; | ||||
if (string === null || string.length < 1) return []; | ||||
val = string.split(separator); | ||||
for (i = 0, l = val.length; i < l; i = i + 1) val[i] = $.trim(val[i]); | ||||
return val; | ||||
} | ||||
function getSideBorderPadding(element) { | ||||
return element.outerWidth(false) - element.width(); | ||||
} | ||||
function installKeyUpChangeEvent(element) { | ||||
var key="keyup-change-value"; | ||||
element.on("keydown", function () { | ||||
if ($.data(element, key) === undefined) { | ||||
$.data(element, key, element.val()); | ||||
} | ||||
}); | ||||
element.on("keyup", function () { | ||||
var val= $.data(element, key); | ||||
if (val !== undefined && element.val() !== val) { | ||||
$.removeData(element, key); | ||||
element.trigger("keyup-change"); | ||||
} | ||||
}); | ||||
} | ||||
/** | ||||
* filters mouse events so an event is fired only if the mouse moved. | ||||
* | ||||
* filters out mouse events that occur when mouse is stationary but | ||||
* the elements under the pointer are scrolled. | ||||
*/ | ||||
function installFilteredMouseMove(element) { | ||||
element.on("mousemove", function (e) { | ||||
var lastpos = lastMousePosition; | ||||
if (lastpos === undefined || lastpos.x !== e.pageX || lastpos.y !== e.pageY) { | ||||
$(e.target).trigger("mousemove-filtered", e); | ||||
} | ||||
}); | ||||
} | ||||
/** | ||||
* Debounces a function. Returns a function that calls the original fn function only if no invocations have been made | ||||
* within the last quietMillis milliseconds. | ||||
* | ||||
* @param quietMillis number of milliseconds to wait before invoking fn | ||||
* @param fn function to be debounced | ||||
* @param ctx object to be used as this reference within fn | ||||
* @return debounced version of fn | ||||
*/ | ||||
function debounce(quietMillis, fn, ctx) { | ||||
ctx = ctx || undefined; | ||||
var timeout; | ||||
return function () { | ||||
var args = arguments; | ||||
window.clearTimeout(timeout); | ||||
timeout = window.setTimeout(function() { | ||||
fn.apply(ctx, args); | ||||
}, quietMillis); | ||||
}; | ||||
} | ||||
function installDebouncedScroll(threshold, element) { | ||||
var notify = debounce(threshold, function (e) { element.trigger("scroll-debounced", e);}); | ||||
element.on("scroll", function (e) { | ||||
if (indexOf(e.target, element.get()) >= 0) notify(e); | ||||
}); | ||||
} | ||||
function focus($el) { | ||||
if ($el[0] === document.activeElement) return; | ||||
/* set the focus in a 0 timeout - that way the focus is set after the processing | ||||
of the current event has finished - which seems like the only reliable way | ||||
to set focus */ | ||||
window.setTimeout(function() { | ||||
var el=$el[0], pos=$el.val().length, range; | ||||
$el.focus(); | ||||
/* make sure el received focus so we do not error out when trying to manipulate the caret. | ||||
sometimes modals or others listeners may steal it after its set */ | ||||
var isVisible = (el.offsetWidth > 0 || el.offsetHeight > 0); | ||||
if (isVisible && el === document.activeElement) { | ||||
/* after the focus is set move the caret to the end, necessary when we val() | ||||
just before setting focus */ | ||||
if(el.setSelectionRange) | ||||
{ | ||||
el.setSelectionRange(pos, pos); | ||||
} | ||||
else if (el.createTextRange) { | ||||
range = el.createTextRange(); | ||||
range.collapse(false); | ||||
range.select(); | ||||
} | ||||
} | ||||
}, 0); | ||||
} | ||||
function getCursorInfo(el) { | ||||
el = $(el)[0]; | ||||
var offset = 0; | ||||
var length = 0; | ||||
if ('selectionStart' in el) { | ||||
offset = el.selectionStart; | ||||
length = el.selectionEnd - offset; | ||||
} else if ('selection' in document) { | ||||
el.focus(); | ||||
var sel = document.selection.createRange(); | ||||
length = document.selection.createRange().text.length; | ||||
sel.moveStart('character', -el.value.length); | ||||
offset = sel.text.length - length; | ||||
} | ||||
return { offset: offset, length: length }; | ||||
} | ||||
function killEvent(event) { | ||||
event.preventDefault(); | ||||
event.stopPropagation(); | ||||
} | ||||
function killEventImmediately(event) { | ||||
event.preventDefault(); | ||||
event.stopImmediatePropagation(); | ||||
} | ||||
function measureTextWidth(e) { | ||||
if (!sizer){ | ||||
var style = e[0].currentStyle || window.getComputedStyle(e[0], null); | ||||
sizer = $(document.createElement("div")).css({ | ||||
position: "absolute", | ||||
left: "-10000px", | ||||
top: "-10000px", | ||||
display: "none", | ||||
fontSize: style.fontSize, | ||||
fontFamily: style.fontFamily, | ||||
fontStyle: style.fontStyle, | ||||
fontWeight: style.fontWeight, | ||||
letterSpacing: style.letterSpacing, | ||||
textTransform: style.textTransform, | ||||
whiteSpace: "nowrap" | ||||
}); | ||||
sizer.attr("class","select2-sizer"); | ||||
$("body").append(sizer); | ||||
} | ||||
sizer.text(e.val()); | ||||
return sizer.width(); | ||||
} | ||||
function syncCssClasses(dest, src, adapter) { | ||||
var classes, replacements = [], adapted; | ||||
classes = $.trim(dest.attr("class")); | ||||
if (classes) { | ||||
classes = '' + classes; // for IE which returns object | ||||
$(classes.split(/\s+/)).each2(function() { | ||||
if (this.indexOf("select2-") === 0) { | ||||
replacements.push(this); | ||||
} | ||||
}); | ||||
} | ||||
classes = $.trim(src.attr("class")); | ||||
if (classes) { | ||||
classes = '' + classes; // for IE which returns object | ||||
$(classes.split(/\s+/)).each2(function() { | ||||
if (this.indexOf("select2-") !== 0) { | ||||
adapted = adapter(this); | ||||
if (adapted) { | ||||
replacements.push(adapted); | ||||
} | ||||
} | ||||
}); | ||||
} | ||||
dest.attr("class", replacements.join(" ")); | ||||
} | ||||
function markMatch(text, term, markup, escapeMarkup) { | ||||
var match=stripDiacritics(text.toUpperCase()).indexOf(stripDiacritics(term.toUpperCase())), | ||||
tl=term.length; | ||||
if (match<0) { | ||||
markup.push(escapeMarkup(text)); | ||||
return; | ||||
} | ||||
markup.push(escapeMarkup(text.substring(0, match))); | ||||
markup.push("<span class='select2-match'>"); | ||||
markup.push(escapeMarkup(text.substring(match, match + tl))); | ||||
markup.push("</span>"); | ||||
markup.push(escapeMarkup(text.substring(match + tl, text.length))); | ||||
} | ||||
function defaultEscapeMarkup(markup) { | ||||
var replace_map = { | ||||
'\\': '\', | ||||
'&': '&', | ||||
'<': '<', | ||||
'>': '>', | ||||
'"': '"', | ||||
"'": ''', | ||||
"/": '/' | ||||
}; | ||||
return String(markup).replace(/[&<>"'\/\\]/g, function (match) { | ||||
return replace_map[match]; | ||||
}); | ||||
} | ||||
/** | ||||
* Produces an ajax-based query function | ||||
* | ||||
* @param options object containing configuration parameters | ||||
* @param options.params parameter map for the transport ajax call, can contain such options as cache, jsonpCallback, etc. see $.ajax | ||||
* @param options.transport function that will be used to execute the ajax request. must be compatible with parameters supported by $.ajax | ||||
* @param options.url url for the data | ||||
* @param options.data a function(searchTerm, pageNumber, context) that should return an object containing query string parameters for the above url. | ||||
* @param options.dataType request data type: ajax, jsonp, other datatypes supported by jQuery's $.ajax function or the transport function if specified | ||||
* @param options.quietMillis (optional) milliseconds to wait before making the ajaxRequest, helps debounce the ajax function if invoked too often | ||||
* @param options.results a function(remoteData, pageNumber, query) that converts data returned form the remote request to the format expected by Select2. | ||||
* The expected format is an object containing the following keys: | ||||
* results array of objects that will be used as choices | ||||
* more (optional) boolean indicating whether there are more results available | ||||
* Example: {results:[{id:1, text:'Red'},{id:2, text:'Blue'}], more:true} | ||||
*/ | ||||
function ajax(options) { | ||||
var timeout, // current scheduled but not yet executed request | ||||
handler = null, | ||||
quietMillis = options.quietMillis || 100, | ||||
ajaxUrl = options.url, | ||||
self = this; | ||||
return function (query) { | ||||
window.clearTimeout(timeout); | ||||
timeout = window.setTimeout(function () { | ||||
var data = options.data, // ajax data function | ||||
url = ajaxUrl, // ajax url string or function | ||||
transport = options.transport || $.fn.select2.ajaxDefaults.transport, | ||||
// deprecated - to be removed in 4.0 - use params instead | ||||
deprecated = { | ||||
type: options.type || 'GET', // set type of request (GET or POST) | ||||
cache: options.cache || false, | ||||
jsonpCallback: options.jsonpCallback||undefined, | ||||
dataType: options.dataType||"json" | ||||
}, | ||||
params = $.extend({}, $.fn.select2.ajaxDefaults.params, deprecated); | ||||
data = data ? data.call(self, query.term, query.page, query.context) : null; | ||||
url = (typeof url === 'function') ? url.call(self, query.term, query.page, query.context) : url; | ||||
if (handler && typeof handler.abort === "function") { handler.abort(); } | ||||
if (options.params) { | ||||
if ($.isFunction(options.params)) { | ||||
$.extend(params, options.params.call(self)); | ||||
} else { | ||||
$.extend(params, options.params); | ||||
} | ||||
} | ||||
$.extend(params, { | ||||
url: url, | ||||
dataType: options.dataType, | ||||
data: data, | ||||
success: function (data) { | ||||
// TODO - replace query.page with query so users have access to term, page, etc. | ||||
// added query as third paramter to keep backwards compatibility | ||||
var results = options.results(data, query.page, query); | ||||
query.callback(results); | ||||
} | ||||
}); | ||||
handler = transport.call(self, params); | ||||
}, quietMillis); | ||||
}; | ||||
} | ||||
/** | ||||
* Produces a query function that works with a local array | ||||
* | ||||
* @param options object containing configuration parameters. The options parameter can either be an array or an | ||||
* object. | ||||
* | ||||
* If the array form is used it is assumed that it contains objects with 'id' and 'text' keys. | ||||
* | ||||
* If the object form is used it is assumed that it contains 'data' and 'text' keys. The 'data' key should contain | ||||
* an array of objects that will be used as choices. These objects must contain at least an 'id' key. The 'text' | ||||
* key can either be a String in which case it is expected that each element in the 'data' array has a key with the | ||||
* value of 'text' which will be used to match choices. Alternatively, text can be a function(item) that can extract | ||||
* the text. | ||||
*/ | ||||
function local(options) { | ||||
var data = options, // data elements | ||||
dataText, | ||||
tmp, | ||||
text = function (item) { return ""+item.text; }; // function used to retrieve the text portion of a data item that is matched against the search | ||||
if ($.isArray(data)) { | ||||
tmp = data; | ||||
data = { results: tmp }; | ||||
} | ||||
if ($.isFunction(data) === false) { | ||||
tmp = data; | ||||
data = function() { return tmp; }; | ||||
} | ||||
var dataItem = data(); | ||||
if (dataItem.text) { | ||||
text = dataItem.text; | ||||
// if text is not a function we assume it to be a key name | ||||
if (!$.isFunction(text)) { | ||||
dataText = dataItem.text; // we need to store this in a separate variable because in the next step data gets reset and data.text is no longer available | ||||
text = function (item) { return item[dataText]; }; | ||||
} | ||||
} | ||||
return function (query) { | ||||
var t = query.term, filtered = { results: [] }, process; | ||||
if (t === "") { | ||||
query.callback(data()); | ||||
return; | ||||
} | ||||
process = function(datum, collection) { | ||||
var group, attr; | ||||
datum = datum[0]; | ||||
if (datum.children) { | ||||
group = {}; | ||||
for (attr in datum) { | ||||
if (datum.hasOwnProperty(attr)) group[attr]=datum[attr]; | ||||
} | ||||
group.children=[]; | ||||
$(datum.children).each2(function(i, childDatum) { process(childDatum, group.children); }); | ||||
if (group.children.length || query.matcher(t, text(group), datum)) { | ||||
collection.push(group); | ||||
} | ||||
} else { | ||||
if (query.matcher(t, text(datum), datum)) { | ||||
collection.push(datum); | ||||
} | ||||
} | ||||
}; | ||||
$(data().results).each2(function(i, datum) { process(datum, filtered.results); }); | ||||
query.callback(filtered); | ||||
}; | ||||
} | ||||
// TODO javadoc | ||||
function tags(data) { | ||||
var isFunc = $.isFunction(data); | ||||
return function (query) { | ||||
var t = query.term, filtered = {results: []}; | ||||
var result = isFunc ? data(query) : data; | ||||
if ($.isArray(result)) { | ||||
$(result).each(function () { | ||||
var isObject = this.text !== undefined, | ||||
text = isObject ? this.text : this; | ||||
if (t === "" || query.matcher(t, text)) { | ||||
filtered.results.push(isObject ? this : {id: this, text: this}); | ||||
} | ||||
}); | ||||
query.callback(filtered); | ||||
} | ||||
}; | ||||
} | ||||
/** | ||||
* Checks if the formatter function should be used. | ||||
* | ||||
* Throws an error if it is not a function. Returns true if it should be used, | ||||
* false if no formatting should be performed. | ||||
* | ||||
* @param formatter | ||||
*/ | ||||
function checkFormatter(formatter, formatterName) { | ||||
if ($.isFunction(formatter)) return true; | ||||
if (!formatter) return false; | ||||
if (typeof(formatter) === 'string') return true; | ||||
throw new Error(formatterName +" must be a string, function, or falsy value"); | ||||
} | ||||
/** | ||||
* Returns a given value | ||||
* If given a function, returns its output | ||||
* | ||||
* @param val string|function | ||||
* @param context value of "this" to be passed to function | ||||
* @returns {*} | ||||
*/ | ||||
function evaluate(val, context) { | ||||
if ($.isFunction(val)) { | ||||
var args = Array.prototype.slice.call(arguments, 2); | ||||
return val.apply(context, args); | ||||
} | ||||
return val; | ||||
} | ||||
function countResults(results) { | ||||
var count = 0; | ||||
$.each(results, function(i, item) { | ||||
if (item.children) { | ||||
count += countResults(item.children); | ||||
} else { | ||||
count++; | ||||
} | ||||
}); | ||||
return count; | ||||
} | ||||
/** | ||||
* Default tokenizer. This function uses breaks the input on substring match of any string from the | ||||
* opts.tokenSeparators array and uses opts.createSearchChoice to create the choice object. Both of those | ||||
* two options have to be defined in order for the tokenizer to work. | ||||
* | ||||
* @param input text user has typed so far or pasted into the search field | ||||
* @param selection currently selected choices | ||||
* @param selectCallback function(choice) callback tho add the choice to selection | ||||
* @param opts select2's opts | ||||
* @return undefined/null to leave the current input unchanged, or a string to change the input to the returned value | ||||
*/ | ||||
function defaultTokenizer(input, selection, selectCallback, opts) { | ||||
var original = input, // store the original so we can compare and know if we need to tell the search to update its text | ||||
dupe = false, // check for whether a token we extracted represents a duplicate selected choice | ||||
token, // token | ||||
index, // position at which the separator was found | ||||
i, l, // looping variables | ||||
separator; // the matched separator | ||||
if (!opts.createSearchChoice || !opts.tokenSeparators || opts.tokenSeparators.length < 1) return undefined; | ||||
while (true) { | ||||
index = -1; | ||||
for (i = 0, l = opts.tokenSeparators.length; i < l; i++) { | ||||
separator = opts.tokenSeparators[i]; | ||||
index = input.indexOf(separator); | ||||
if (index >= 0) break; | ||||
} | ||||
if (index < 0) break; // did not find any token separator in the input string, bail | ||||
token = input.substring(0, index); | ||||
input = input.substring(index + separator.length); | ||||
if (token.length > 0) { | ||||
token = opts.createSearchChoice.call(this, token, selection); | ||||
if (token !== undefined && token !== null && opts.id(token) !== undefined && opts.id(token) !== null) { | ||||
dupe = false; | ||||
for (i = 0, l = selection.length; i < l; i++) { | ||||
if (equal(opts.id(token), opts.id(selection[i]))) { | ||||
dupe = true; break; | ||||
} | ||||
} | ||||
if (!dupe) selectCallback(token); | ||||
} | ||||
} | ||||
} | ||||
if (original!==input) return input; | ||||
} | ||||
function cleanupJQueryElements() { | ||||
var self = this; | ||||
$.each(arguments, function (i, element) { | ||||
self[element].remove(); | ||||
self[element] = null; | ||||
}); | ||||
} | ||||
/** | ||||
* Creates a new class | ||||
* | ||||
* @param superClass | ||||
* @param methods | ||||
*/ | ||||
function clazz(SuperClass, methods) { | ||||
var constructor = function () {}; | ||||
constructor.prototype = new SuperClass; | ||||
constructor.prototype.constructor = constructor; | ||||
constructor.prototype.parent = SuperClass.prototype; | ||||
constructor.prototype = $.extend(constructor.prototype, methods); | ||||
return constructor; | ||||
} | ||||
AbstractSelect2 = clazz(Object, { | ||||
// abstract | ||||
bind: function (func) { | ||||
var self = this; | ||||
return function () { | ||||
func.apply(self, arguments); | ||||
}; | ||||
}, | ||||
// abstract | ||||
init: function (opts) { | ||||
var results, search, resultsSelector = ".select2-results"; | ||||
// prepare options | ||||
this.opts = opts = this.prepareOpts(opts); | ||||
this.id=opts.id; | ||||
// destroy if called on an existing component | ||||
if (opts.element.data("select2") !== undefined && | ||||
opts.element.data("select2") !== null) { | ||||
opts.element.data("select2").destroy(); | ||||
} | ||||
this.container = this.createContainer(); | ||||
this.liveRegion = $("<span>", { | ||||
role: "status", | ||||
"aria-live": "polite" | ||||
}) | ||||
.addClass("select2-hidden-accessible") | ||||
.appendTo(document.body); | ||||
this.containerId="s2id_"+(opts.element.attr("id") || "autogen"+nextUid()); | ||||
this.containerEventName= this.containerId | ||||
.replace(/([.])/g, '_') | ||||
.replace(/([;&,\-\.\+\*\~':"\!\^#$%@\[\]\(\)=>\|])/g, '\\$1'); | ||||
this.container.attr("id", this.containerId); | ||||
this.container.attr("title", opts.element.attr("title")); | ||||
this.body = $("body"); | ||||
syncCssClasses(this.container, this.opts.element, this.opts.adaptContainerCssClass); | ||||
this.container.attr("style", opts.element.attr("style")); | ||||
this.container.css(evaluate(opts.containerCss, this.opts.element)); | ||||
this.container.addClass(evaluate(opts.containerCssClass, this.opts.element)); | ||||
this.elementTabIndex = this.opts.element.attr("tabindex"); | ||||
// swap container for the element | ||||
this.opts.element | ||||
.data("select2", this) | ||||
.attr("tabindex", "-1") | ||||
.before(this.container) | ||||
.on("click.select2", killEvent); // do not leak click events | ||||
this.container.data("select2", this); | ||||
this.dropdown = this.container.find(".select2-drop"); | ||||
syncCssClasses(this.dropdown, this.opts.element, this.opts.adaptDropdownCssClass); | ||||
this.dropdown.addClass(evaluate(opts.dropdownCssClass, this.opts.element)); | ||||
this.dropdown.data("select2", this); | ||||
this.dropdown.on("click", killEvent); | ||||
this.results = results = this.container.find(resultsSelector); | ||||
this.search = search = this.container.find("input.select2-input"); | ||||
this.queryCount = 0; | ||||
this.resultsPage = 0; | ||||
this.context = null; | ||||
// initialize the container | ||||
this.initContainer(); | ||||
this.container.on("click", killEvent); | ||||
installFilteredMouseMove(this.results); | ||||
this.dropdown.on("mousemove-filtered", resultsSelector, this.bind(this.highlightUnderEvent)); | ||||
this.dropdown.on("touchstart touchmove touchend", resultsSelector, this.bind(function (event) { | ||||
this._touchEvent = true; | ||||
this.highlightUnderEvent(event); | ||||
})); | ||||
this.dropdown.on("touchmove", resultsSelector, this.bind(this.touchMoved)); | ||||
this.dropdown.on("touchstart touchend", resultsSelector, this.bind(this.clearTouchMoved)); | ||||
// Waiting for a click event on touch devices to select option and hide dropdown | ||||
// otherwise click will be triggered on an underlying element | ||||
this.dropdown.on('click', this.bind(function (event) { | ||||
if (this._touchEvent) { | ||||
this._touchEvent = false; | ||||
this.selectHighlighted(); | ||||
} | ||||
})); | ||||
installDebouncedScroll(80, this.results); | ||||
this.dropdown.on("scroll-debounced", resultsSelector, this.bind(this.loadMoreIfNeeded)); | ||||
// do not propagate change event from the search field out of the component | ||||
$(this.container).on("change", ".select2-input", function(e) {e.stopPropagation();}); | ||||
$(this.dropdown).on("change", ".select2-input", function(e) {e.stopPropagation();}); | ||||
// if jquery.mousewheel plugin is installed we can prevent out-of-bounds scrolling of results via mousewheel | ||||
if ($.fn.mousewheel) { | ||||
results.mousewheel(function (e, delta, deltaX, deltaY) { | ||||
var top = results.scrollTop(); | ||||
if (deltaY > 0 && top - deltaY <= 0) { | ||||
results.scrollTop(0); | ||||
killEvent(e); | ||||
} else if (deltaY < 0 && results.get(0).scrollHeight - results.scrollTop() + deltaY <= results.height()) { | ||||
results.scrollTop(results.get(0).scrollHeight - results.height()); | ||||
killEvent(e); | ||||
} | ||||
}); | ||||
} | ||||
installKeyUpChangeEvent(search); | ||||
search.on("keyup-change input paste", this.bind(this.updateResults)); | ||||
search.on("focus", function () { search.addClass("select2-focused"); }); | ||||
search.on("blur", function () { search.removeClass("select2-focused");}); | ||||
this.dropdown.on("mouseup", resultsSelector, this.bind(function (e) { | ||||
if ($(e.target).closest(".select2-result-selectable").length > 0) { | ||||
this.highlightUnderEvent(e); | ||||
this.selectHighlighted(e); | ||||
} | ||||
})); | ||||
// trap all mouse events from leaving the dropdown. sometimes there may be a modal that is listening | ||||
// for mouse events outside of itself so it can close itself. since the dropdown is now outside the select2's | ||||
// dom it will trigger the popup close, which is not what we want | ||||
// focusin can cause focus wars between modals and select2 since the dropdown is outside the modal. | ||||
this.dropdown.on("click mouseup mousedown touchstart touchend focusin", function (e) { e.stopPropagation(); }); | ||||
this.nextSearchTerm = undefined; | ||||
if ($.isFunction(this.opts.initSelection)) { | ||||
// initialize selection based on the current value of the source element | ||||
this.initSelection(); | ||||
// if the user has provided a function that can set selection based on the value of the source element | ||||
// we monitor the change event on the element and trigger it, allowing for two way synchronization | ||||
this.monitorSource(); | ||||
} | ||||
if (opts.maximumInputLength !== null) { | ||||
this.search.attr("maxlength", opts.maximumInputLength); | ||||
} | ||||
var disabled = opts.element.prop("disabled"); | ||||
if (disabled === undefined) disabled = false; | ||||
this.enable(!disabled); | ||||
var readonly = opts.element.prop("readonly"); | ||||
if (readonly === undefined) readonly = false; | ||||
this.readonly(readonly); | ||||
// Calculate size of scrollbar | ||||
scrollBarDimensions = scrollBarDimensions || measureScrollbar(); | ||||
this.autofocus = opts.element.prop("autofocus"); | ||||
opts.element.prop("autofocus", false); | ||||
if (this.autofocus) this.focus(); | ||||
this.search.attr("placeholder", opts.searchInputPlaceholder); | ||||
}, | ||||
// abstract | ||||
destroy: function () { | ||||
var element=this.opts.element, select2 = element.data("select2"); | ||||
this.close(); | ||||
if (element.length && element[0].detachEvent) { | ||||
element.each(function () { | ||||
this.detachEvent("onpropertychange", this._sync); | ||||
}); | ||||
} | ||||
if (this.propertyObserver) { | ||||
this.propertyObserver.disconnect(); | ||||
this.propertyObserver = null; | ||||
} | ||||
this._sync = null; | ||||
if (select2 !== undefined) { | ||||
select2.container.remove(); | ||||
select2.liveRegion.remove(); | ||||
select2.dropdown.remove(); | ||||
element | ||||
.removeClass("select2-offscreen") | ||||
.removeData("select2") | ||||
.off(".select2") | ||||
.prop("autofocus", this.autofocus || false); | ||||
if (this.elementTabIndex) { | ||||
element.attr({tabindex: this.elementTabIndex}); | ||||
} else { | ||||
element.removeAttr("tabindex"); | ||||
} | ||||
element.show(); | ||||
} | ||||
cleanupJQueryElements.call(this, | ||||
"container", | ||||
"liveRegion", | ||||
"dropdown", | ||||
"results", | ||||
"search" | ||||
); | ||||
}, | ||||
// abstract | ||||
optionToData: function(element) { | ||||
if (element.is("option")) { | ||||
return { | ||||
id:element.prop("value"), | ||||
text:element.text(), | ||||
element: element.get(), | ||||
css: element.attr("class"), | ||||
disabled: element.prop("disabled"), | ||||
locked: equal(element.attr("locked"), "locked") || equal(element.data("locked"), true) | ||||
}; | ||||
} else if (element.is("optgroup")) { | ||||
return { | ||||
text:element.attr("label"), | ||||
children:[], | ||||
element: element.get(), | ||||
css: element.attr("class") | ||||
}; | ||||
} | ||||
}, | ||||
// abstract | ||||
prepareOpts: function (opts) { | ||||
var element, select, idKey, ajaxUrl, self = this; | ||||
element = opts.element; | ||||
if (element.get(0).tagName.toLowerCase() === "select") { | ||||
this.select = select = opts.element; | ||||
} | ||||
if (select) { | ||||
// these options are not allowed when attached to a select because they are picked up off the element itself | ||||
$.each(["id", "multiple", "ajax", "query", "createSearchChoice", "initSelection", "data", "tags"], function () { | ||||
if (this in opts) { | ||||
throw new Error("Option '" + this + "' is not allowed for Select2 when attached to a <select> element."); | ||||
} | ||||
}); | ||||
} | ||||
opts = $.extend({}, { | ||||
populateResults: function(container, results, query) { | ||||
var populate, id=this.opts.id, liveRegion=this.liveRegion; | ||||
populate=function(results, container, depth) { | ||||
var i, l, result, selectable, disabled, compound, node, label, innerContainer, formatted; | ||||
results = opts.sortResults(results, container, query); | ||||
// collect the created nodes for bulk append | ||||
var nodes = []; | ||||
for (i = 0, l = results.length; i < l; i = i + 1) { | ||||
result=results[i]; | ||||
disabled = (result.disabled === true); | ||||
selectable = (!disabled) && (id(result) !== undefined); | ||||
compound=result.children && result.children.length > 0; | ||||
node=$("<li></li>"); | ||||
node.addClass("select2-results-dept-"+depth); | ||||
node.addClass("select2-result"); | ||||
node.addClass(selectable ? "select2-result-selectable" : "select2-result-unselectable"); | ||||
if (disabled) { node.addClass("select2-disabled"); } | ||||
if (compound) { node.addClass("select2-result-with-children"); } | ||||
node.addClass(self.opts.formatResultCssClass(result)); | ||||
node.attr("role", "presentation"); | ||||
label=$(document.createElement("div")); | ||||
label.addClass("select2-result-label"); | ||||
label.attr("id", "select2-result-label-" + nextUid()); | ||||
label.attr("role", "option"); | ||||
formatted=opts.formatResult(result, label, query, self.opts.escapeMarkup); | ||||
if (formatted!==undefined) { | ||||
label.html(formatted); | ||||
node.append(label); | ||||
} | ||||
if (compound) { | ||||
innerContainer=$("<ul></ul>"); | ||||
innerContainer.addClass("select2-result-sub"); | ||||
populate(result.children, innerContainer, depth+1); | ||||
node.append(innerContainer); | ||||
} | ||||
node.data("select2-data", result); | ||||
nodes.push(node[0]); | ||||
} | ||||
// bulk append the created nodes | ||||
container.append(nodes); | ||||
liveRegion.text(opts.formatMatches(results.length)); | ||||
}; | ||||
populate(results, container, 0); | ||||
} | ||||
}, $.fn.select2.defaults, opts); | ||||
if (typeof(opts.id) !== "function") { | ||||
idKey = opts.id; | ||||
opts.id = function (e) { return e[idKey]; }; | ||||
} | ||||
if ($.isArray(opts.element.data("select2Tags"))) { | ||||
if ("tags" in opts) { | ||||
throw "tags specified as both an attribute 'data-select2-tags' and in options of Select2 " + opts.element.attr("id"); | ||||
} | ||||
opts.tags=opts.element.data("select2Tags"); | ||||
} | ||||
if (select) { | ||||
opts.query = this.bind(function (query) { | ||||
var data = { results: [], more: false }, | ||||
term = query.term, | ||||
children, placeholderOption, process; | ||||
process=function(element, collection) { | ||||
var group; | ||||
if (element.is("option")) { | ||||
if (query.matcher(term, element.text(), element)) { | ||||
collection.push(self.optionToData(element)); | ||||
} | ||||
} else if (element.is("optgroup")) { | ||||
group=self.optionToData(element); | ||||
element.children().each2(function(i, elm) { process(elm, group.children); }); | ||||
if (group.children.length>0) { | ||||
collection.push(group); | ||||
} | ||||
} | ||||
}; | ||||
children=element.children(); | ||||
// ignore the placeholder option if there is one | ||||
if (this.getPlaceholder() !== undefined && children.length > 0) { | ||||
placeholderOption = this.getPlaceholderOption(); | ||||
if (placeholderOption) { | ||||
children=children.not(placeholderOption); | ||||
} | ||||
} | ||||
children.each2(function(i, elm) { process(elm, data.results); }); | ||||
query.callback(data); | ||||
}); | ||||
// this is needed because inside val() we construct choices from options and there id is hardcoded | ||||
opts.id=function(e) { return e.id; }; | ||||
} else { | ||||
if (!("query" in opts)) { | ||||
if ("ajax" in opts) { | ||||
ajaxUrl = opts.element.data("ajax-url"); | ||||
if (ajaxUrl && ajaxUrl.length > 0) { | ||||
opts.ajax.url = ajaxUrl; | ||||
} | ||||
opts.query = ajax.call(opts.element, opts.ajax); | ||||
} else if ("data" in opts) { | ||||
opts.query = local(opts.data); | ||||
} else if ("tags" in opts) { | ||||
opts.query = tags(opts.tags); | ||||
if (opts.createSearchChoice === undefined) { | ||||
opts.createSearchChoice = function (term) { return {id: $.trim(term), text: $.trim(term)}; }; | ||||
} | ||||
if (opts.initSelection === undefined) { | ||||
opts.initSelection = function (element, callback) { | ||||
var data = []; | ||||
$(splitVal(element.val(), opts.separator)).each(function () { | ||||
var obj = { id: this, text: this }, | ||||
tags = opts.tags; | ||||
if ($.isFunction(tags)) tags=tags(); | ||||
$(tags).each(function() { if (equal(this.id, obj.id)) { obj = this; return false; } }); | ||||
data.push(obj); | ||||
}); | ||||
callback(data); | ||||
}; | ||||
} | ||||
} | ||||
} | ||||
} | ||||
if (typeof(opts.query) !== "function") { | ||||
throw "query function not defined for Select2 " + opts.element.attr("id"); | ||||
} | ||||
if (opts.createSearchChoicePosition === 'top') { | ||||
opts.createSearchChoicePosition = function(list, item) { list.unshift(item); }; | ||||
} | ||||
else if (opts.createSearchChoicePosition === 'bottom') { | ||||
opts.createSearchChoicePosition = function(list, item) { list.push(item); }; | ||||
} | ||||
else if (typeof(opts.createSearchChoicePosition) !== "function") { | ||||
throw "invalid createSearchChoicePosition option must be 'top', 'bottom' or a custom function"; | ||||
} | ||||
return opts; | ||||
}, | ||||
/** | ||||
* Monitor the original element for changes and update select2 accordingly | ||||
*/ | ||||
// abstract | ||||
monitorSource: function () { | ||||
var el = this.opts.element, observer, self = this; | ||||
el.on("change.select2", this.bind(function (e) { | ||||
if (this.opts.element.data("select2-change-triggered") !== true) { | ||||
this.initSelection(); | ||||
} | ||||
})); | ||||
this._sync = this.bind(function () { | ||||
// sync enabled state | ||||
var disabled = el.prop("disabled"); | ||||
if (disabled === undefined) disabled = false; | ||||
this.enable(!disabled); | ||||
var readonly = el.prop("readonly"); | ||||
if (readonly === undefined) readonly = false; | ||||
this.readonly(readonly); | ||||
syncCssClasses(this.container, this.opts.element, this.opts.adaptContainerCssClass); | ||||
this.container.addClass(evaluate(this.opts.containerCssClass, this.opts.element)); | ||||
syncCssClasses(this.dropdown, this.opts.element, this.opts.adaptDropdownCssClass); | ||||
this.dropdown.addClass(evaluate(this.opts.dropdownCssClass, this.opts.element)); | ||||
}); | ||||
// IE8-10 (IE9/10 won't fire propertyChange via attachEventListener) | ||||
if (el.length && el[0].attachEvent) { | ||||
el.each(function() { | ||||
this.attachEvent("onpropertychange", self._sync); | ||||
}); | ||||
} | ||||
// safari, chrome, firefox, IE11 | ||||
observer = window.MutationObserver || window.WebKitMutationObserver|| window.MozMutationObserver; | ||||
if (observer !== undefined) { | ||||
if (this.propertyObserver) { delete this.propertyObserver; this.propertyObserver = null; } | ||||
this.propertyObserver = new observer(function (mutations) { | ||||
$.each(mutations, self._sync); | ||||
}); | ||||
this.propertyObserver.observe(el.get(0), { attributes:true, subtree:false }); | ||||
} | ||||
}, | ||||
// abstract | ||||
triggerSelect: function(data) { | ||||
var evt = $.Event("select2-selecting", { val: this.id(data), object: data, choice: data }); | ||||
this.opts.element.trigger(evt); | ||||
return !evt.isDefaultPrevented(); | ||||
}, | ||||
/** | ||||
* Triggers the change event on the source element | ||||
*/ | ||||
// abstract | ||||
triggerChange: function (details) { | ||||
details = details || {}; | ||||
details= $.extend({}, details, { type: "change", val: this.val() }); | ||||
// prevents recursive triggering | ||||
this.opts.element.data("select2-change-triggered", true); | ||||
this.opts.element.trigger(details); | ||||
this.opts.element.data("select2-change-triggered", false); | ||||
// some validation frameworks ignore the change event and listen instead to keyup, click for selects | ||||
// so here we trigger the click event manually | ||||
this.opts.element.click(); | ||||
// ValidationEngine ignores the change event and listens instead to blur | ||||
// so here we trigger the blur event manually if so desired | ||||
if (this.opts.blurOnChange) | ||||
this.opts.element.blur(); | ||||
}, | ||||
//abstract | ||||
isInterfaceEnabled: function() | ||||
{ | ||||
return this.enabledInterface === true; | ||||
}, | ||||
// abstract | ||||
enableInterface: function() { | ||||
var enabled = this._enabled && !this._readonly, | ||||
disabled = !enabled; | ||||
if (enabled === this.enabledInterface) return false; | ||||
this.container.toggleClass("select2-container-disabled", disabled); | ||||
this.close(); | ||||
this.enabledInterface = enabled; | ||||
return true; | ||||
}, | ||||
// abstract | ||||
enable: function(enabled) { | ||||
if (enabled === undefined) enabled = true; | ||||
if (this._enabled === enabled) return; | ||||
this._enabled = enabled; | ||||
this.opts.element.prop("disabled", !enabled); | ||||
this.enableInterface(); | ||||
}, | ||||
// abstract | ||||
disable: function() { | ||||
this.enable(false); | ||||
}, | ||||
// abstract | ||||
readonly: function(enabled) { | ||||
if (enabled === undefined) enabled = false; | ||||
if (this._readonly === enabled) return; | ||||
this._readonly = enabled; | ||||
this.opts.element.prop("readonly", enabled); | ||||
this.enableInterface(); | ||||
}, | ||||
// abstract | ||||
opened: function () { | ||||
return (this.container) ? this.container.hasClass("select2-dropdown-open") : false; | ||||
}, | ||||
// abstract | ||||
positionDropdown: function() { | ||||
var $dropdown = this.dropdown, | ||||
offset = this.container.offset(), | ||||
height = this.container.outerHeight(false), | ||||
width = this.container.outerWidth(false), | ||||
dropHeight = $dropdown.outerHeight(false), | ||||
$window = $(window), | ||||
windowWidth = $window.width(), | ||||
windowHeight = $window.height(), | ||||
viewPortRight = $window.scrollLeft() + windowWidth, | ||||
viewportBottom = $window.scrollTop() + windowHeight, | ||||
dropTop = offset.top + height, | ||||
dropLeft = offset.left, | ||||
enoughRoomBelow = dropTop + dropHeight <= viewportBottom, | ||||
enoughRoomAbove = (offset.top - dropHeight) >= $window.scrollTop(), | ||||
dropWidth = $dropdown.outerWidth(false), | ||||
enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight, | ||||
aboveNow = $dropdown.hasClass("select2-drop-above"), | ||||
bodyOffset, | ||||
above, | ||||
changeDirection, | ||||
css, | ||||
resultsListNode; | ||||
// always prefer the current above/below alignment, unless there is not enough room | ||||
if (aboveNow) { | ||||
above = true; | ||||
if (!enoughRoomAbove && enoughRoomBelow) { | ||||
changeDirection = true; | ||||
above = false; | ||||
} | ||||
} else { | ||||
above = false; | ||||
if (!enoughRoomBelow && enoughRoomAbove) { | ||||
changeDirection = true; | ||||
above = true; | ||||
} | ||||
} | ||||
//if we are changing direction we need to get positions when dropdown is hidden; | ||||
if (changeDirection) { | ||||
$dropdown.hide(); | ||||
offset = this.container.offset(); | ||||
height = this.container.outerHeight(false); | ||||
width = this.container.outerWidth(false); | ||||
dropHeight = $dropdown.outerHeight(false); | ||||
viewPortRight = $window.scrollLeft() + windowWidth; | ||||
viewportBottom = $window.scrollTop() + windowHeight; | ||||
dropTop = offset.top + height; | ||||
dropLeft = offset.left; | ||||
dropWidth = $dropdown.outerWidth(false); | ||||
enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight; | ||||
$dropdown.show(); | ||||
// fix so the cursor does not move to the left within the search-textbox in IE | ||||
this.focusSearch(); | ||||
} | ||||
if (this.opts.dropdownAutoWidth) { | ||||
resultsListNode = $('.select2-results', $dropdown)[0]; | ||||
$dropdown.addClass('select2-drop-auto-width'); | ||||
$dropdown.css('width', ''); | ||||
// Add scrollbar width to dropdown if vertical scrollbar is present | ||||
dropWidth = $dropdown.outerWidth(false) + (resultsListNode.scrollHeight === resultsListNode.clientHeight ? 0 : scrollBarDimensions.width); | ||||
dropWidth > width ? width = dropWidth : dropWidth = width; | ||||
dropHeight = $dropdown.outerHeight(false); | ||||
enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight; | ||||
} | ||||
else { | ||||
this.container.removeClass('select2-drop-auto-width'); | ||||
} | ||||
//console.log("below/ droptop:", dropTop, "dropHeight", dropHeight, "sum", (dropTop+dropHeight)+" viewport bottom", viewportBottom, "enough?", enoughRoomBelow); | ||||
//console.log("above/ offset.top", offset.top, "dropHeight", dropHeight, "top", (offset.top-dropHeight), "scrollTop", this.body.scrollTop(), "enough?", enoughRoomAbove); | ||||
// fix positioning when body has an offset and is not position: static | ||||
if (this.body.css('position') !== 'static') { | ||||
bodyOffset = this.body.offset(); | ||||
dropTop -= bodyOffset.top; | ||||
dropLeft -= bodyOffset.left; | ||||
} | ||||
if (!enoughRoomOnRight) { | ||||
dropLeft = offset.left + this.container.outerWidth(false) - dropWidth; | ||||
} | ||||
css = { | ||||
left: dropLeft, | ||||
width: width | ||||
}; | ||||
if (above) { | ||||
css.top = offset.top - dropHeight; | ||||
css.bottom = 'auto'; | ||||
this.container.addClass("select2-drop-above"); | ||||
$dropdown.addClass("select2-drop-above"); | ||||
} | ||||
else { | ||||
css.top = dropTop; | ||||
css.bottom = 'auto'; | ||||
this.container.removeClass("select2-drop-above"); | ||||
$dropdown.removeClass("select2-drop-above"); | ||||
} | ||||
css = $.extend(css, evaluate(this.opts.dropdownCss, this.opts.element)); | ||||
$dropdown.css(css); | ||||
}, | ||||
// abstract | ||||
shouldOpen: function() { | ||||
var event; | ||||
if (this.opened()) return false; | ||||
if (this._enabled === false || this._readonly === true) return false; | ||||
event = $.Event("select2-opening"); | ||||
this.opts.element.trigger(event); | ||||
return !event.isDefaultPrevented(); | ||||
}, | ||||
// abstract | ||||
clearDropdownAlignmentPreference: function() { | ||||
// clear the classes used to figure out the preference of where the dropdown should be opened | ||||
this.container.removeClass("select2-drop-above"); | ||||
this.dropdown.removeClass("select2-drop-above"); | ||||
}, | ||||
/** | ||||
* Opens the dropdown | ||||
* | ||||
* @return {Boolean} whether or not dropdown was opened. This method will return false if, for example, | ||||
* the dropdown is already open, or if the 'open' event listener on the element called preventDefault(). | ||||
*/ | ||||
// abstract | ||||
open: function () { | ||||
if (!this.shouldOpen()) return false; | ||||
this.opening(); | ||||
// Only bind the document mousemove when the dropdown is visible | ||||
$document.on("mousemove.select2Event", function (e) { | ||||
lastMousePosition.x = e.pageX; | ||||
lastMousePosition.y = e.pageY; | ||||
}); | ||||
return true; | ||||
}, | ||||
/** | ||||
* Performs the opening of the dropdown | ||||
*/ | ||||
// abstract | ||||
opening: function() { | ||||
var cid = this.containerEventName, | ||||
scroll = "scroll." + cid, | ||||
resize = "resize."+cid, | ||||
orient = "orientationchange."+cid, | ||||
mask; | ||||
this.container.addClass("select2-dropdown-open").addClass("select2-container-active"); | ||||
this.clearDropdownAlignmentPreference(); | ||||
if(this.dropdown[0] !== this.body.children().last()[0]) { | ||||
this.dropdown.detach().appendTo(this.body); | ||||
} | ||||
// create the dropdown mask if doesn't already exist | ||||
mask = $("#select2-drop-mask"); | ||||
if (mask.length == 0) { | ||||
mask = $(document.createElement("div")); | ||||
mask.attr("id","select2-drop-mask").attr("class","select2-drop-mask"); | ||||
mask.hide(); | ||||
mask.appendTo(this.body); | ||||
mask.on("mousedown touchstart click", function (e) { | ||||
// Prevent IE from generating a click event on the body | ||||
reinsertElement(mask); | ||||
var dropdown = $("#select2-drop"), self; | ||||
if (dropdown.length > 0) { | ||||
self=dropdown.data("select2"); | ||||
if (self.opts.selectOnBlur) { | ||||
self.selectHighlighted({noFocus: true}); | ||||
} | ||||
self.close(); | ||||
e.preventDefault(); | ||||
e.stopPropagation(); | ||||
} | ||||
}); | ||||
} | ||||
// ensure the mask is always right before the dropdown | ||||
if (this.dropdown.prev()[0] !== mask[0]) { | ||||
this.dropdown.before(mask); | ||||
} | ||||
// move the global id to the correct dropdown | ||||
$("#select2-drop").removeAttr("id"); | ||||
this.dropdown.attr("id", "select2-drop"); | ||||
// show the elements | ||||
mask.show(); | ||||
this.positionDropdown(); | ||||
this.dropdown.show(); | ||||
this.positionDropdown(); | ||||
this.dropdown.addClass("select2-drop-active"); | ||||
// attach listeners to events that can change the position of the container and thus require | ||||
// the position of the dropdown to be updated as well so it does not come unglued from the container | ||||
var that = this; | ||||
this.container.parents().add(window).each(function () { | ||||
$(this).on(resize+" "+scroll+" "+orient, function (e) { | ||||
if (that.opened()) that.positionDropdown(); | ||||
}); | ||||
}); | ||||
}, | ||||
// abstract | ||||
close: function () { | ||||
if (!this.opened()) return; | ||||
var cid = this.containerEventName, | ||||
scroll = "scroll." + cid, | ||||
resize = "resize."+cid, | ||||
orient = "orientationchange."+cid; | ||||
// unbind event listeners | ||||
this.container.parents().add(window).each(function () { $(this).off(scroll).off(resize).off(orient); }); | ||||
this.clearDropdownAlignmentPreference(); | ||||
$("#select2-drop-mask").hide(); | ||||
this.dropdown.removeAttr("id"); // only the active dropdown has the select2-drop id | ||||
this.dropdown.hide(); | ||||
this.container.removeClass("select2-dropdown-open").removeClass("select2-container-active"); | ||||
this.results.empty(); | ||||
// Now that the dropdown is closed, unbind the global document mousemove event | ||||
$document.off("mousemove.select2Event"); | ||||
this.clearSearch(); | ||||
this.search.removeClass("select2-active"); | ||||
this.opts.element.trigger($.Event("select2-close")); | ||||
}, | ||||
/** | ||||
* Opens control, sets input value, and updates results. | ||||
*/ | ||||
// abstract | ||||
externalSearch: function (term) { | ||||
this.open(); | ||||
this.search.val(term); | ||||
this.updateResults(false); | ||||
}, | ||||
// abstract | ||||
clearSearch: function () { | ||||
}, | ||||
//abstract | ||||
getMaximumSelectionSize: function() { | ||||
return evaluate(this.opts.maximumSelectionSize, this.opts.element); | ||||
}, | ||||
// abstract | ||||
ensureHighlightVisible: function () { | ||||
var results = this.results, children, index, child, hb, rb, y, more, topOffset; | ||||
index = this.highlight(); | ||||
if (index < 0) return; | ||||
if (index == 0) { | ||||
// if the first element is highlighted scroll all the way to the top, | ||||
// that way any unselectable headers above it will also be scrolled | ||||
// into view | ||||
results.scrollTop(0); | ||||
return; | ||||
} | ||||
children = this.findHighlightableChoices().find('.select2-result-label'); | ||||
child = $(children[index]); | ||||
topOffset = (child.offset() || {}).top || 0; | ||||
hb = topOffset + child.outerHeight(true); | ||||
// if this is the last child lets also make sure select2-more-results is visible | ||||
if (index === children.length - 1) { | ||||
more = results.find("li.select2-more-results"); | ||||
if (more.length > 0) { | ||||
hb = more.offset().top + more.outerHeight(true); | ||||
} | ||||
} | ||||
rb = results.offset().top + results.outerHeight(true); | ||||
if (hb > rb) { | ||||
results.scrollTop(results.scrollTop() + (hb - rb)); | ||||
} | ||||
y = topOffset - results.offset().top; | ||||
// make sure the top of the element is visible | ||||
if (y < 0 && child.css('display') != 'none' ) { | ||||
results.scrollTop(results.scrollTop() + y); // y is negative | ||||
} | ||||
}, | ||||
// abstract | ||||
findHighlightableChoices: function() { | ||||
return this.results.find(".select2-result-selectable:not(.select2-disabled):not(.select2-selected)"); | ||||
}, | ||||
// abstract | ||||
moveHighlight: function (delta) { | ||||
var choices = this.findHighlightableChoices(), | ||||
index = this.highlight(); | ||||
while (index > -1 && index < choices.length) { | ||||
index += delta; | ||||
var choice = $(choices[index]); | ||||
if (choice.hasClass("select2-result-selectable") && !choice.hasClass("select2-disabled") && !choice.hasClass("select2-selected")) { | ||||
this.highlight(index); | ||||
break; | ||||
} | ||||
} | ||||
}, | ||||
// abstract | ||||
highlight: function (index) { | ||||
var choices = this.findHighlightableChoices(), | ||||
choice, | ||||
data; | ||||
if (arguments.length === 0) { | ||||
return indexOf(choices.filter(".select2-highlighted")[0], choices.get()); | ||||
} | ||||
if (index >= choices.length) index = choices.length - 1; | ||||
if (index < 0) index = 0; | ||||
this.removeHighlight(); | ||||
choice = $(choices[index]); | ||||
choice.addClass("select2-highlighted"); | ||||
// ensure assistive technology can determine the active choice | ||||
this.search.attr("aria-activedescendant", choice.find(".select2-result-label").attr("id")); | ||||
this.ensureHighlightVisible(); | ||||
this.liveRegion.text(choice.text()); | ||||
data = choice.data("select2-data"); | ||||
if (data) { | ||||
this.opts.element.trigger({ type: "select2-highlight", val: this.id(data), choice: data }); | ||||
} | ||||
}, | ||||
removeHighlight: function() { | ||||
this.results.find(".select2-highlighted").removeClass("select2-highlighted"); | ||||
}, | ||||
touchMoved: function() { | ||||
this._touchMoved = true; | ||||
}, | ||||
clearTouchMoved: function() { | ||||
this._touchMoved = false; | ||||
}, | ||||
// abstract | ||||
countSelectableResults: function() { | ||||
return this.findHighlightableChoices().length; | ||||
}, | ||||
// abstract | ||||
highlightUnderEvent: function (event) { | ||||
var el = $(event.target).closest(".select2-result-selectable"); | ||||
if (el.length > 0 && !el.is(".select2-highlighted")) { | ||||
var choices = this.findHighlightableChoices(); | ||||
this.highlight(choices.index(el)); | ||||
} else if (el.length == 0) { | ||||
// if we are over an unselectable item remove all highlights | ||||
this.removeHighlight(); | ||||
} | ||||
}, | ||||
// abstract | ||||
loadMoreIfNeeded: function () { | ||||
var results = this.results, | ||||
more = results.find("li.select2-more-results"), | ||||
below, // pixels the element is below the scroll fold, below==0 is when the element is starting to be visible | ||||
page = this.resultsPage + 1, | ||||
self=this, | ||||
term=this.search.val(), | ||||
context=this.context; | ||||
if (more.length === 0) return; | ||||
below = more.offset().top - results.offset().top - results.height(); | ||||
if (below <= this.opts.loadMorePadding) { | ||||
more.addClass("select2-active"); | ||||
this.opts.query({ | ||||
element: this.opts.element, | ||||
term: term, | ||||
page: page, | ||||
context: context, | ||||
matcher: this.opts.matcher, | ||||
callback: this.bind(function (data) { | ||||
// ignore a response if the select2 has been closed before it was received | ||||
if (!self.opened()) return; | ||||
self.opts.populateResults.call(this, results, data.results, {term: term, page: page, context:context}); | ||||
self.postprocessResults(data, false, false); | ||||
if (data.more===true) { | ||||
more.detach().appendTo(results).text(evaluate(self.opts.formatLoadMore, self.opts.element, page+1)); | ||||
window.setTimeout(function() { self.loadMoreIfNeeded(); }, 10); | ||||
} else { | ||||
more.remove(); | ||||
} | ||||
self.positionDropdown(); | ||||
self.resultsPage = page; | ||||
self.context = data.context; | ||||
this.opts.element.trigger({ type: "select2-loaded", items: data }); | ||||
})}); | ||||
} | ||||
}, | ||||
/** | ||||
* Default tokenizer function which does nothing | ||||
*/ | ||||
tokenize: function() { | ||||
}, | ||||
/** | ||||
* @param initial whether or not this is the call to this method right after the dropdown has been opened | ||||
*/ | ||||
// abstract | ||||
updateResults: function (initial) { | ||||
var search = this.search, | ||||
results = this.results, | ||||
opts = this.opts, | ||||
data, | ||||
self = this, | ||||
input, | ||||
term = search.val(), | ||||
lastTerm = $.data(this.container, "select2-last-term"), | ||||
// sequence number used to drop out-of-order responses | ||||
queryNumber; | ||||
// prevent duplicate queries against the same term | ||||
if (initial !== true && lastTerm && equal(term, lastTerm)) return; | ||||
$.data(this.container, "select2-last-term", term); | ||||
// if the search is currently hidden we do not alter the results | ||||
if (initial !== true && (this.showSearchInput === false || !this.opened())) { | ||||
return; | ||||
} | ||||
function postRender() { | ||||
search.removeClass("select2-active"); | ||||
self.positionDropdown(); | ||||
if (results.find('.select2-no-results,.select2-selection-limit,.select2-searching').length) { | ||||
self.liveRegion.text(results.text()); | ||||
} | ||||
else { | ||||
self.liveRegion.text(self.opts.formatMatches(results.find('.select2-result-selectable').length)); | ||||
} | ||||
} | ||||
function render(html) { | ||||
results.html(html); | ||||
postRender(); | ||||
} | ||||
queryNumber = ++this.queryCount; | ||||
var maxSelSize = this.getMaximumSelectionSize(); | ||||
if (maxSelSize >=1) { | ||||
data = this.data(); | ||||
if ($.isArray(data) && data.length >= maxSelSize && checkFormatter(opts.formatSelectionTooBig, "formatSelectionTooBig")) { | ||||
render("<li class='select2-selection-limit'>" + evaluate(opts.formatSelectionTooBig, opts.element, maxSelSize) + "</li>"); | ||||
return; | ||||
} | ||||
} | ||||
if (search.val().length < opts.minimumInputLength) { | ||||
if (checkFormatter(opts.formatInputTooShort, "formatInputTooShort")) { | ||||
render("<li class='select2-no-results'>" + evaluate(opts.formatInputTooShort, opts.element, search.val(), opts.minimumInputLength) + "</li>"); | ||||
} else { | ||||
render(""); | ||||
} | ||||
if (initial && this.showSearch) this.showSearch(true); | ||||
return; | ||||
} | ||||
if (opts.maximumInputLength && search.val().length > opts.maximumInputLength) { | ||||
if (checkFormatter(opts.formatInputTooLong, "formatInputTooLong")) { | ||||
render("<li class='select2-no-results'>" + evaluate(opts.formatInputTooLong, opts.element, search.val(), opts.maximumInputLength) + "</li>"); | ||||
} else { | ||||
render(""); | ||||
} | ||||
return; | ||||
} | ||||
if (opts.formatSearching && this.findHighlightableChoices().length === 0) { | ||||
render("<li class='select2-searching'>" + evaluate(opts.formatSearching, opts.element) + "</li>"); | ||||
} | ||||
search.addClass("select2-active"); | ||||
this.removeHighlight(); | ||||
// give the tokenizer a chance to pre-process the input | ||||
input = this.tokenize(); | ||||
if (input != undefined && input != null) { | ||||
search.val(input); | ||||
} | ||||
this.resultsPage = 1; | ||||
opts.query({ | ||||
element: opts.element, | ||||
term: search.val(), | ||||
page: this.resultsPage, | ||||
context: null, | ||||
matcher: opts.matcher, | ||||
callback: this.bind(function (data) { | ||||
var def; // default choice | ||||
// ignore old responses | ||||
if (queryNumber != this.queryCount) { | ||||
return; | ||||
} | ||||
// ignore a response if the select2 has been closed before it was received | ||||
if (!this.opened()) { | ||||
this.search.removeClass("select2-active"); | ||||
return; | ||||
} | ||||
// save context, if any | ||||
this.context = (data.context===undefined) ? null : data.context; | ||||
// create a default choice and prepend it to the list | ||||
if (this.opts.createSearchChoice && search.val() !== "") { | ||||
def = this.opts.createSearchChoice.call(self, search.val(), data.results); | ||||
if (def !== undefined && def !== null && self.id(def) !== undefined && self.id(def) !== null) { | ||||
if ($(data.results).filter( | ||||
function () { | ||||
return equal(self.id(this), self.id(def)); | ||||
}).length === 0) { | ||||
this.opts.createSearchChoicePosition(data.results, def); | ||||
} | ||||
} | ||||
} | ||||
if (data.results.length === 0 && checkFormatter(opts.formatNoMatches, "formatNoMatches")) { | ||||
render("<li class='select2-no-results'>" + evaluate(opts.formatNoMatches, opts.element, search.val()) + "</li>"); | ||||
return; | ||||
} | ||||
results.empty(); | ||||
self.opts.populateResults.call(this, results, data.results, {term: search.val(), page: this.resultsPage, context:null}); | ||||
if (data.more === true && checkFormatter(opts.formatLoadMore, "formatLoadMore")) { | ||||
results.append("<li class='select2-more-results'>" + opts.escapeMarkup(evaluate(opts.formatLoadMore, opts.element, this.resultsPage)) + "</li>"); | ||||
window.setTimeout(function() { self.loadMoreIfNeeded(); }, 10); | ||||
} | ||||
this.postprocessResults(data, initial); | ||||
postRender(); | ||||
this.opts.element.trigger({ type: "select2-loaded", items: data }); | ||||
})}); | ||||
}, | ||||
// abstract | ||||
cancel: function () { | ||||
this.close(); | ||||
}, | ||||
// abstract | ||||
blur: function () { | ||||
// if selectOnBlur == true, select the currently highlighted option | ||||
if (this.opts.selectOnBlur) | ||||
this.selectHighlighted({noFocus: true}); | ||||
this.close(); | ||||
this.container.removeClass("select2-container-active"); | ||||
// synonymous to .is(':focus'), which is available in jquery >= 1.6 | ||||
if (this.search[0] === document.activeElement) { this.search.blur(); } | ||||
this.clearSearch(); | ||||
this.selection.find(".select2-search-choice-focus").removeClass("select2-search-choice-focus"); | ||||
}, | ||||
// abstract | ||||
focusSearch: function () { | ||||
focus(this.search); | ||||
}, | ||||
// abstract | ||||
selectHighlighted: function (options) { | ||||
if (this._touchMoved) { | ||||
this.clearTouchMoved(); | ||||
return; | ||||
} | ||||
var index=this.highlight(), | ||||
highlighted=this.results.find(".select2-highlighted"), | ||||
data = highlighted.closest('.select2-result').data("select2-data"); | ||||
if (data) { | ||||
this.highlight(index); | ||||
this.onSelect(data, options); | ||||
} else if (options && options.noFocus) { | ||||
this.close(); | ||||
} | ||||
}, | ||||
// abstract | ||||
getPlaceholder: function () { | ||||
var placeholderOption; | ||||
return this.opts.element.attr("placeholder") || | ||||
this.opts.element.attr("data-placeholder") || // jquery 1.4 compat | ||||
this.opts.element.data("placeholder") || | ||||
this.opts.placeholder || | ||||
((placeholderOption = this.getPlaceholderOption()) !== undefined ? placeholderOption.text() : undefined); | ||||
}, | ||||
// abstract | ||||
getPlaceholderOption: function() { | ||||
if (this.select) { | ||||
var firstOption = this.select.children('option').first(); | ||||
if (this.opts.placeholderOption !== undefined ) { | ||||
//Determine the placeholder option based on the specified placeholderOption setting | ||||
return (this.opts.placeholderOption === "first" && firstOption) || | ||||
(typeof this.opts.placeholderOption === "function" && this.opts.placeholderOption(this.select)); | ||||
} else if ($.trim(firstOption.text()) === "" && firstOption.val() === "") { | ||||
//No explicit placeholder option specified, use the first if it's blank | ||||
return firstOption; | ||||
} | ||||
} | ||||
}, | ||||
/** | ||||
* Get the desired width for the container element. This is | ||||
* derived first from option `width` passed to select2, then | ||||
* the inline 'style' on the original element, and finally | ||||
* falls back to the jQuery calculated element width. | ||||
*/ | ||||
// abstract | ||||
initContainerWidth: function () { | ||||
function resolveContainerWidth() { | ||||
var style, attrs, matches, i, l, attr; | ||||
if (this.opts.width === "off") { | ||||
return null; | ||||
} else if (this.opts.width === "element"){ | ||||
return this.opts.element.outerWidth(false) === 0 ? 'auto' : this.opts.element.outerWidth(false) + 'px'; | ||||
} else if (this.opts.width === "copy" || this.opts.width === "resolve") { | ||||
// check if there is inline style on the element that contains width | ||||
style = this.opts.element.attr('style'); | ||||
if (style !== undefined) { | ||||
attrs = style.split(';'); | ||||
for (i = 0, l = attrs.length; i < l; i = i + 1) { | ||||
attr = attrs[i].replace(/\s/g, ''); | ||||
matches = attr.match(/^width:(([-+]?([0-9]*\.)?[0-9]+)(px|em|ex|%|in|cm|mm|pt|pc))/i); | ||||
if (matches !== null && matches.length >= 1) | ||||
return matches[1]; | ||||
} | ||||
} | ||||
if (this.opts.width === "resolve") { | ||||
// next check if css('width') can resolve a width that is percent based, this is sometimes possible | ||||
// when attached to input type=hidden or elements hidden via css | ||||
style = this.opts.element.css('width'); | ||||
if (style.indexOf("%") > 0) return style; | ||||
// finally, fallback on the calculated width of the element | ||||
return (this.opts.element.outerWidth(false) === 0 ? 'auto' : this.opts.element.outerWidth(false) + 'px'); | ||||
} | ||||
return null; | ||||
} else if ($.isFunction(this.opts.width)) { | ||||
return this.opts.width(); | ||||
} else { | ||||
return this.opts.width; | ||||
} | ||||
}; | ||||
var width = resolveContainerWidth.call(this); | ||||
if (width !== null) { | ||||
this.container.css("width", width); | ||||
} | ||||
} | ||||
}); | ||||
SingleSelect2 = clazz(AbstractSelect2, { | ||||
// single | ||||
createContainer: function () { | ||||
var container = $(document.createElement("div")).attr({ | ||||
"class": "select2-container" | ||||
}).html([ | ||||
"<a href='javascript:void(0)' class='select2-choice' tabindex='-1'>", | ||||
" <span class='select2-chosen'> </span><abbr class='select2-search-choice-close'></abbr>", | ||||
" <span class='select2-arrow' role='presentation'><b role='presentation'></b></span>", | ||||
"</a>", | ||||
"<label for='' class='select2-offscreen'></label>", | ||||
"<input class='select2-focusser select2-offscreen' type='text' aria-haspopup='true' role='button' />", | ||||
"<div class='select2-drop select2-display-none'>", | ||||
" <div class='select2-search'>", | ||||
" <label for='' class='select2-offscreen'></label>", | ||||
" <input type='text' autocomplete='off' autocorrect='off' autocapitalize='off' spellcheck='false' class='select2-input' role='combobox' aria-expanded='true'", | ||||
" aria-autocomplete='list' />", | ||||
" </div>", | ||||
" <ul class='select2-results' role='listbox'>", | ||||
" </ul>", | ||||
"</div>"].join("")); | ||||
return container; | ||||
}, | ||||
// single | ||||
enableInterface: function() { | ||||
if (this.parent.enableInterface.apply(this, arguments)) { | ||||
this.focusser.prop("disabled", !this.isInterfaceEnabled()); | ||||
} | ||||
}, | ||||
// single | ||||
opening: function () { | ||||
var el, range, len; | ||||
if (this.opts.minimumResultsForSearch >= 0) { | ||||
this.showSearch(true); | ||||
} | ||||
this.parent.opening.apply(this, arguments); | ||||
if (this.showSearchInput !== false) { | ||||
// IE appends focusser.val() at the end of field :/ so we manually insert it at the beginning using a range | ||||
// all other browsers handle this just fine | ||||
this.search.val(this.focusser.val()); | ||||
} | ||||
if (this.opts.shouldFocusInput(this)) { | ||||
this.search.focus(); | ||||
// move the cursor to the end after focussing, otherwise it will be at the beginning and | ||||
// new text will appear *before* focusser.val() | ||||
el = this.search.get(0); | ||||
if (el.createTextRange) { | ||||
range = el.createTextRange(); | ||||
range.collapse(false); | ||||
range.select(); | ||||
} else if (el.setSelectionRange) { | ||||
len = this.search.val().length; | ||||
el.setSelectionRange(len, len); | ||||
} | ||||
} | ||||
// initializes search's value with nextSearchTerm (if defined by user) | ||||
// ignore nextSearchTerm if the dropdown is opened by the user pressing a letter | ||||
if(this.search.val() === "") { | ||||
if(this.nextSearchTerm != undefined){ | ||||
this.search.val(this.nextSearchTerm); | ||||
this.search.select(); | ||||
} | ||||
} | ||||
this.focusser.prop("disabled", true).val(""); | ||||
this.updateResults(true); | ||||
this.opts.element.trigger($.Event("select2-open")); | ||||
}, | ||||
// single | ||||
close: function () { | ||||
if (!this.opened()) return; | ||||
this.parent.close.apply(this, arguments); | ||||
this.focusser.prop("disabled", false); | ||||
if (this.opts.shouldFocusInput(this)) { | ||||
this.focusser.focus(); | ||||
} | ||||
}, | ||||
// single | ||||
focus: function () { | ||||
if (this.opened()) { | ||||
this.close(); | ||||
} else { | ||||
this.focusser.prop("disabled", false); | ||||
if (this.opts.shouldFocusInput(this)) { | ||||
this.focusser.focus(); | ||||
} | ||||
} | ||||
}, | ||||
// single | ||||
isFocused: function () { | ||||
return this.container.hasClass("select2-container-active"); | ||||
}, | ||||
// single | ||||
cancel: function () { | ||||
this.parent.cancel.apply(this, arguments); | ||||
this.focusser.prop("disabled", false); | ||||
if (this.opts.shouldFocusInput(this)) { | ||||
this.focusser.focus(); | ||||
} | ||||
}, | ||||
// single | ||||
destroy: function() { | ||||
$("label[for='" + this.focusser.attr('id') + "']") | ||||
.attr('for', this.opts.element.attr("id")); | ||||
this.parent.destroy.apply(this, arguments); | ||||
cleanupJQueryElements.call(this, | ||||
"selection", | ||||
"focusser" | ||||
); | ||||
}, | ||||
// single | ||||
initContainer: function () { | ||||
var selection, | ||||
container = this.container, | ||||
dropdown = this.dropdown, | ||||
idSuffix = nextUid(), | ||||
elementLabel; | ||||
if (this.opts.minimumResultsForSearch < 0) { | ||||
this.showSearch(false); | ||||
} else { | ||||
this.showSearch(true); | ||||
} | ||||
this.selection = selection = container.find(".select2-choice"); | ||||
this.focusser = container.find(".select2-focusser"); | ||||
// add aria associations | ||||
selection.find(".select2-chosen").attr("id", "select2-chosen-"+idSuffix); | ||||
this.focusser.attr("aria-labelledby", "select2-chosen-"+idSuffix); | ||||
this.results.attr("id", "select2-results-"+idSuffix); | ||||
this.search.attr("aria-owns", "select2-results-"+idSuffix); | ||||
// rewrite labels from original element to focusser | ||||
this.focusser.attr("id", "s2id_autogen"+idSuffix); | ||||
elementLabel = $("label[for='" + this.opts.element.attr("id") + "']"); | ||||
this.focusser.prev() | ||||
.text(elementLabel.text()) | ||||
.attr('for', this.focusser.attr('id')); | ||||
// Ensure the original element retains an accessible name | ||||
var originalTitle = this.opts.element.attr("title"); | ||||
this.opts.element.attr("title", (originalTitle || elementLabel.text())); | ||||
this.focusser.attr("tabindex", this.elementTabIndex); | ||||
// write label for search field using the label from the focusser element | ||||
this.search.attr("id", this.focusser.attr('id') + '_search'); | ||||
this.search.prev() | ||||
.text($("label[for='" + this.focusser.attr('id') + "']").text()) | ||||
.attr('for', this.search.attr('id')); | ||||
this.search.on("keydown", this.bind(function (e) { | ||||
if (!this.isInterfaceEnabled()) return; | ||||
if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) { | ||||
// prevent the page from scrolling | ||||
killEvent(e); | ||||
return; | ||||
} | ||||
switch (e.which) { | ||||
case KEY.UP: | ||||
case KEY.DOWN: | ||||
this.moveHighlight((e.which === KEY.UP) ? -1 : 1); | ||||
killEvent(e); | ||||
return; | ||||
case KEY.ENTER: | ||||
this.selectHighlighted(); | ||||
killEvent(e); | ||||
return; | ||||
case KEY.TAB: | ||||
this.selectHighlighted({noFocus: true}); | ||||
return; | ||||
case KEY.ESC: | ||||
this.cancel(e); | ||||
killEvent(e); | ||||
return; | ||||
} | ||||
})); | ||||
this.search.on("blur", this.bind(function(e) { | ||||
// a workaround for chrome to keep the search field focussed when the scroll bar is used to scroll the dropdown. | ||||
// without this the search field loses focus which is annoying | ||||
if (document.activeElement === this.body.get(0)) { | ||||
window.setTimeout(this.bind(function() { | ||||
if (this.opened()) { | ||||
this.search.focus(); | ||||
} | ||||
}), 0); | ||||
} | ||||
})); | ||||
this.focusser.on("keydown", this.bind(function (e) { | ||||
if (!this.isInterfaceEnabled()) return; | ||||
if (e.which === KEY.TAB || KEY.isControl(e) || KEY.isFunctionKey(e) || e.which === KEY.ESC) { | ||||
return; | ||||
} | ||||
if (this.opts.openOnEnter === false && e.which === KEY.ENTER) { | ||||
killEvent(e); | ||||
return; | ||||
} | ||||
if (e.which == KEY.DOWN || e.which == KEY.UP | ||||
|| (e.which == KEY.ENTER && this.opts.openOnEnter)) { | ||||
if (e.altKey || e.ctrlKey || e.shiftKey || e.metaKey) return; | ||||
this.open(); | ||||
killEvent(e); | ||||
return; | ||||
} | ||||
if (e.which == KEY.DELETE || e.which == KEY.BACKSPACE) { | ||||
if (this.opts.allowClear) { | ||||
this.clear(); | ||||
} | ||||
killEvent(e); | ||||
return; | ||||
} | ||||
})); | ||||
installKeyUpChangeEvent(this.focusser); | ||||
this.focusser.on("keyup-change input", this.bind(function(e) { | ||||
if (this.opts.minimumResultsForSearch >= 0) { | ||||
e.stopPropagation(); | ||||
if (this.opened()) return; | ||||
this.open(); | ||||
} | ||||
})); | ||||
selection.on("mousedown touchstart", "abbr", this.bind(function (e) { | ||||
if (!this.isInterfaceEnabled()) return; | ||||
this.clear(); | ||||
killEventImmediately(e); | ||||
this.close(); | ||||
this.selection.focus(); | ||||
})); | ||||
selection.on("mousedown touchstart", this.bind(function (e) { | ||||
// Prevent IE from generating a click event on the body | ||||
reinsertElement(selection); | ||||
if (!this.container.hasClass("select2-container-active")) { | ||||
this.opts.element.trigger($.Event("select2-focus")); | ||||
} | ||||
if (this.opened()) { | ||||
this.close(); | ||||
} else if (this.isInterfaceEnabled()) { | ||||
this.open(); | ||||
} | ||||
killEvent(e); | ||||
})); | ||||
dropdown.on("mousedown touchstart", this.bind(function() { | ||||
if (this.opts.shouldFocusInput(this)) { | ||||
this.search.focus(); | ||||
} | ||||
})); | ||||
selection.on("focus", this.bind(function(e) { | ||||
killEvent(e); | ||||
})); | ||||
this.focusser.on("focus", this.bind(function(){ | ||||
if (!this.container.hasClass("select2-container-active")) { | ||||
this.opts.element.trigger($.Event("select2-focus")); | ||||
} | ||||
this.container.addClass("select2-container-active"); | ||||
})).on("blur", this.bind(function() { | ||||
if (!this.opened()) { | ||||
this.container.removeClass("select2-container-active"); | ||||
this.opts.element.trigger($.Event("select2-blur")); | ||||
} | ||||
})); | ||||
this.search.on("focus", this.bind(function(){ | ||||
if (!this.container.hasClass("select2-container-active")) { | ||||
this.opts.element.trigger($.Event("select2-focus")); | ||||
} | ||||
this.container.addClass("select2-container-active"); | ||||
})); | ||||
this.initContainerWidth(); | ||||
this.opts.element.addClass("select2-offscreen"); | ||||
this.setPlaceholder(); | ||||
}, | ||||
// single | ||||
clear: function(triggerChange) { | ||||
var data=this.selection.data("select2-data"); | ||||
if (data) { // guard against queued quick consecutive clicks | ||||
var evt = $.Event("select2-clearing"); | ||||
this.opts.element.trigger(evt); | ||||
if (evt.isDefaultPrevented()) { | ||||
return; | ||||
} | ||||
var placeholderOption = this.getPlaceholderOption(); | ||||
this.opts.element.val(placeholderOption ? placeholderOption.val() : ""); | ||||
this.selection.find(".select2-chosen").empty(); | ||||
this.selection.removeData("select2-data"); | ||||
this.setPlaceholder(); | ||||
if (triggerChange !== false){ | ||||
this.opts.element.trigger({ type: "select2-removed", val: this.id(data), choice: data }); | ||||
this.triggerChange({removed:data}); | ||||
} | ||||
} | ||||
}, | ||||
/** | ||||
* Sets selection based on source element's value | ||||
*/ | ||||
// single | ||||
initSelection: function () { | ||||
var selected; | ||||
if (this.isPlaceholderOptionSelected()) { | ||||
this.updateSelection(null); | ||||
this.close(); | ||||
this.setPlaceholder(); | ||||
} else { | ||||
var self = this; | ||||
this.opts.initSelection.call(null, this.opts.element, function(selected){ | ||||
if (selected !== undefined && selected !== null) { | ||||
self.updateSelection(selected); | ||||
self.close(); | ||||
self.setPlaceholder(); | ||||
self.nextSearchTerm = self.opts.nextSearchTerm(selected, self.search.val()); | ||||
} | ||||
}); | ||||
} | ||||
}, | ||||
isPlaceholderOptionSelected: function() { | ||||
var placeholderOption; | ||||
if (this.getPlaceholder() === undefined) return false; // no placeholder specified so no option should be considered | ||||
return ((placeholderOption = this.getPlaceholderOption()) !== undefined && placeholderOption.prop("selected")) | ||||
|| (this.opts.element.val() === "") | ||||
|| (this.opts.element.val() === undefined) | ||||
|| (this.opts.element.val() === null); | ||||
}, | ||||
// single | ||||
prepareOpts: function () { | ||||
var opts = this.parent.prepareOpts.apply(this, arguments), | ||||
self=this; | ||||
if (opts.element.get(0).tagName.toLowerCase() === "select") { | ||||
// install the selection initializer | ||||
opts.initSelection = function (element, callback) { | ||||
var selected = element.find("option").filter(function() { return this.selected && !this.disabled }); | ||||
// a single select box always has a value, no need to null check 'selected' | ||||
callback(self.optionToData(selected)); | ||||
}; | ||||
} else if ("data" in opts) { | ||||
// install default initSelection when applied to hidden input and data is local | ||||
opts.initSelection = opts.initSelection || function (element, callback) { | ||||
var id = element.val(); | ||||
//search in data by id, storing the actual matching item | ||||
var match = null; | ||||
opts.query({ | ||||
matcher: function(term, text, el){ | ||||
var is_match = equal(id, opts.id(el)); | ||||
if (is_match) { | ||||
match = el; | ||||
} | ||||
return is_match; | ||||
}, | ||||
callback: !$.isFunction(callback) ? $.noop : function() { | ||||
callback(match); | ||||
} | ||||
}); | ||||
}; | ||||
} | ||||
return opts; | ||||
}, | ||||
// single | ||||
getPlaceholder: function() { | ||||
// if a placeholder is specified on a single select without a valid placeholder option ignore it | ||||
if (this.select) { | ||||
if (this.getPlaceholderOption() === undefined) { | ||||
return undefined; | ||||
} | ||||
} | ||||
return this.parent.getPlaceholder.apply(this, arguments); | ||||
}, | ||||
// single | ||||
setPlaceholder: function () { | ||||
var placeholder = this.getPlaceholder(); | ||||
if (this.isPlaceholderOptionSelected() && placeholder !== undefined) { | ||||
// check for a placeholder option if attached to a select | ||||
if (this.select && this.getPlaceholderOption() === undefined) return; | ||||
this.selection.find(".select2-chosen").html(this.opts.escapeMarkup(placeholder)); | ||||
this.selection.addClass("select2-default"); | ||||
this.container.removeClass("select2-allowclear"); | ||||
} | ||||
}, | ||||
// single | ||||
postprocessResults: function (data, initial, noHighlightUpdate) { | ||||
var selected = 0, self = this, showSearchInput = true; | ||||
// find the selected element in the result list | ||||
this.findHighlightableChoices().each2(function (i, elm) { | ||||
if (equal(self.id(elm.data("select2-data")), self.opts.element.val())) { | ||||
selected = i; | ||||
return false; | ||||
} | ||||
}); | ||||
// and highlight it | ||||
if (noHighlightUpdate !== false) { | ||||
if (initial === true && selected >= 0) { | ||||
this.highlight(selected); | ||||
} else { | ||||
this.highlight(0); | ||||
} | ||||
} | ||||
// hide the search box if this is the first we got the results and there are enough of them for search | ||||
if (initial === true) { | ||||
var min = this.opts.minimumResultsForSearch; | ||||
if (min >= 0) { | ||||
this.showSearch(countResults(data.results) >= min); | ||||
} | ||||
} | ||||
}, | ||||
// single | ||||
showSearch: function(showSearchInput) { | ||||
if (this.showSearchInput === showSearchInput) return; | ||||
this.showSearchInput = showSearchInput; | ||||
this.dropdown.find(".select2-search").toggleClass("select2-search-hidden", !showSearchInput); | ||||
this.dropdown.find(".select2-search").toggleClass("select2-offscreen", !showSearchInput); | ||||
//add "select2-with-searchbox" to the container if search box is shown | ||||
$(this.dropdown, this.container).toggleClass("select2-with-searchbox", showSearchInput); | ||||
}, | ||||
// single | ||||
onSelect: function (data, options) { | ||||
if (!this.triggerSelect(data)) { return; } | ||||
var old = this.opts.element.val(), | ||||
oldData = this.data(); | ||||
this.opts.element.val(this.id(data)); | ||||
this.updateSelection(data); | ||||
this.opts.element.trigger({ type: "select2-selected", val: this.id(data), choice: data }); | ||||
this.nextSearchTerm = this.opts.nextSearchTerm(data, this.search.val()); | ||||
this.close(); | ||||
if ((!options || !options.noFocus) && this.opts.shouldFocusInput(this)) { | ||||
this.focusser.focus(); | ||||
} | ||||
if (!equal(old, this.id(data))) { | ||||
this.triggerChange({ added: data, removed: oldData }); | ||||
} | ||||
}, | ||||
// single | ||||
updateSelection: function (data) { | ||||
var container=this.selection.find(".select2-chosen"), formatted, cssClass; | ||||
this.selection.data("select2-data", data); | ||||
container.empty(); | ||||
if (data !== null) { | ||||
formatted=this.opts.formatSelection(data, container, this.opts.escapeMarkup); | ||||
} | ||||
if (formatted !== undefined) { | ||||
container.append(formatted); | ||||
} | ||||
cssClass=this.opts.formatSelectionCssClass(data, container); | ||||
if (cssClass !== undefined) { | ||||
container.addClass(cssClass); | ||||
} | ||||
this.selection.removeClass("select2-default"); | ||||
if (this.opts.allowClear && this.getPlaceholder() !== undefined) { | ||||
this.container.addClass("select2-allowclear"); | ||||
} | ||||
}, | ||||
// single | ||||
val: function () { | ||||
var val, | ||||
triggerChange = false, | ||||
data = null, | ||||
self = this, | ||||
oldData = this.data(); | ||||
if (arguments.length === 0) { | ||||
return this.opts.element.val(); | ||||
} | ||||
val = arguments[0]; | ||||
if (arguments.length > 1) { | ||||
triggerChange = arguments[1]; | ||||
} | ||||
if (this.select) { | ||||
this.select | ||||
.val(val) | ||||
.find("option").filter(function() { return this.selected }).each2(function (i, elm) { | ||||
data = self.optionToData(elm); | ||||
return false; | ||||
}); | ||||
this.updateSelection(data); | ||||
this.setPlaceholder(); | ||||
if (triggerChange) { | ||||
this.triggerChange({added: data, removed:oldData}); | ||||
} | ||||
} else { | ||||
// val is an id. !val is true for [undefined,null,'',0] - 0 is legal | ||||
if (!val && val !== 0) { | ||||
this.clear(triggerChange); | ||||
return; | ||||
} | ||||
if (this.opts.initSelection === undefined) { | ||||
throw new Error("cannot call val() if initSelection() is not defined"); | ||||
} | ||||
this.opts.element.val(val); | ||||
this.opts.initSelection(this.opts.element, function(data){ | ||||
self.opts.element.val(!data ? "" : self.id(data)); | ||||
self.updateSelection(data); | ||||
self.setPlaceholder(); | ||||
if (triggerChange) { | ||||
self.triggerChange({added: data, removed:oldData}); | ||||
} | ||||
}); | ||||
} | ||||
}, | ||||
// single | ||||
clearSearch: function () { | ||||
this.search.val(""); | ||||
this.focusser.val(""); | ||||
}, | ||||
// single | ||||
data: function(value) { | ||||
var data, | ||||
triggerChange = false; | ||||
if (arguments.length === 0) { | ||||
data = this.selection.data("select2-data"); | ||||
if (data == undefined) data = null; | ||||
return data; | ||||
} else { | ||||
if (arguments.length > 1) { | ||||
triggerChange = arguments[1]; | ||||
} | ||||
if (!value) { | ||||
this.clear(triggerChange); | ||||
} else { | ||||
data = this.data(); | ||||
this.opts.element.val(!value ? "" : this.id(value)); | ||||
this.updateSelection(value); | ||||
if (triggerChange) { | ||||
this.triggerChange({added: value, removed:data}); | ||||
} | ||||
} | ||||
} | ||||
} | ||||
}); | ||||
MultiSelect2 = clazz(AbstractSelect2, { | ||||
// multi | ||||
createContainer: function () { | ||||
var container = $(document.createElement("div")).attr({ | ||||
"class": "select2-container select2-container-multi" | ||||
}).html([ | ||||
"<ul class='select2-choices'>", | ||||
" <li class='select2-search-field'>", | ||||
" <label for='' class='select2-offscreen'></label>", | ||||
" <input type='text' autocomplete='off' autocorrect='off' autocapitalize='off' spellcheck='false' class='select2-input'>", | ||||
" </li>", | ||||
"</ul>", | ||||
"<div class='select2-drop select2-drop-multi select2-display-none'>", | ||||
" <ul class='select2-results'>", | ||||
" </ul>", | ||||
"</div>"].join("")); | ||||
return container; | ||||
}, | ||||
// multi | ||||
prepareOpts: function () { | ||||
var opts = this.parent.prepareOpts.apply(this, arguments), | ||||
self=this; | ||||
// TODO validate placeholder is a string if specified | ||||
if (opts.element.get(0).tagName.toLowerCase() === "select") { | ||||
// install the selection initializer | ||||
opts.initSelection = function (element, callback) { | ||||
var data = []; | ||||
element.find("option").filter(function() { return this.selected && !this.disabled }).each2(function (i, elm) { | ||||
data.push(self.optionToData(elm)); | ||||
}); | ||||
callback(data); | ||||
}; | ||||
} else if ("data" in opts) { | ||||
// install default initSelection when applied to hidden input and data is local | ||||
opts.initSelection = opts.initSelection || function (element, callback) { | ||||
var ids = splitVal(element.val(), opts.separator); | ||||
//search in data by array of ids, storing matching items in a list | ||||
var matches = []; | ||||
opts.query({ | ||||
matcher: function(term, text, el){ | ||||
var is_match = $.grep(ids, function(id) { | ||||
return equal(id, opts.id(el)); | ||||
}).length; | ||||
if (is_match) { | ||||
matches.push(el); | ||||
} | ||||
return is_match; | ||||
}, | ||||
callback: !$.isFunction(callback) ? $.noop : function() { | ||||
// reorder matches based on the order they appear in the ids array because right now | ||||
// they are in the order in which they appear in data array | ||||
var ordered = []; | ||||
for (var i = 0; i < ids.length; i++) { | ||||
var id = ids[i]; | ||||
for (var j = 0; j < matches.length; j++) { | ||||
var match = matches[j]; | ||||
if (equal(id, opts.id(match))) { | ||||
ordered.push(match); | ||||
matches.splice(j, 1); | ||||
break; | ||||
} | ||||
} | ||||
} | ||||
callback(ordered); | ||||
} | ||||
}); | ||||
}; | ||||
} | ||||
return opts; | ||||
}, | ||||
// multi | ||||
selectChoice: function (choice) { | ||||
var selected = this.container.find(".select2-search-choice-focus"); | ||||
if (selected.length && choice && choice[0] == selected[0]) { | ||||
} else { | ||||
if (selected.length) { | ||||
this.opts.element.trigger("choice-deselected", selected); | ||||
} | ||||
selected.removeClass("select2-search-choice-focus"); | ||||
if (choice && choice.length) { | ||||
this.close(); | ||||
choice.addClass("select2-search-choice-focus"); | ||||
this.opts.element.trigger("choice-selected", choice); | ||||
} | ||||
} | ||||
}, | ||||
// multi | ||||
destroy: function() { | ||||
$("label[for='" + this.search.attr('id') + "']") | ||||
.attr('for', this.opts.element.attr("id")); | ||||
this.parent.destroy.apply(this, arguments); | ||||
cleanupJQueryElements.call(this, | ||||
"searchContainer", | ||||
"selection" | ||||
); | ||||
}, | ||||
// multi | ||||
initContainer: function () { | ||||
var selector = ".select2-choices", selection; | ||||
this.searchContainer = this.container.find(".select2-search-field"); | ||||
this.selection = selection = this.container.find(selector); | ||||
var _this = this; | ||||
this.selection.on("click", ".select2-search-choice:not(.select2-locked)", function (e) { | ||||
//killEvent(e); | ||||
_this.search[0].focus(); | ||||
_this.selectChoice($(this)); | ||||
}); | ||||
// rewrite labels from original element to focusser | ||||
this.search.attr("id", "s2id_autogen"+nextUid()); | ||||
this.search.prev() | ||||
.text($("label[for='" + this.opts.element.attr("id") + "']").text()) | ||||
.attr('for', this.search.attr('id')); | ||||
this.search.on("input paste", this.bind(function() { | ||||
if (this.search.attr('placeholder') && this.search.val().length == 0) return; | ||||
if (!this.isInterfaceEnabled()) return; | ||||
if (!this.opened()) { | ||||
this.open(); | ||||
} | ||||
})); | ||||
this.search.attr("tabindex", this.elementTabIndex); | ||||
this.keydowns = 0; | ||||
this.search.on("keydown", this.bind(function (e) { | ||||
if (!this.isInterfaceEnabled()) return; | ||||
++this.keydowns; | ||||
var selected = selection.find(".select2-search-choice-focus"); | ||||
var prev = selected.prev(".select2-search-choice:not(.select2-locked)"); | ||||
var next = selected.next(".select2-search-choice:not(.select2-locked)"); | ||||
var pos = getCursorInfo(this.search); | ||||
if (selected.length && | ||||
(e.which == KEY.LEFT || e.which == KEY.RIGHT || e.which == KEY.BACKSPACE || e.which == KEY.DELETE || e.which == KEY.ENTER)) { | ||||
var selectedChoice = selected; | ||||
if (e.which == KEY.LEFT && prev.length) { | ||||
selectedChoice = prev; | ||||
} | ||||
else if (e.which == KEY.RIGHT) { | ||||
selectedChoice = next.length ? next : null; | ||||
} | ||||
else if (e.which === KEY.BACKSPACE) { | ||||
if (this.unselect(selected.first())) { | ||||
this.search.width(10); | ||||
selectedChoice = prev.length ? prev : next; | ||||
} | ||||
} else if (e.which == KEY.DELETE) { | ||||
if (this.unselect(selected.first())) { | ||||
this.search.width(10); | ||||
selectedChoice = next.length ? next : null; | ||||
} | ||||
} else if (e.which == KEY.ENTER) { | ||||
selectedChoice = null; | ||||
} | ||||
this.selectChoice(selectedChoice); | ||||
killEvent(e); | ||||
if (!selectedChoice || !selectedChoice.length) { | ||||
this.open(); | ||||
} | ||||
return; | ||||
} else if (((e.which === KEY.BACKSPACE && this.keydowns == 1) | ||||
|| e.which == KEY.LEFT) && (pos.offset == 0 && !pos.length)) { | ||||
this.selectChoice(selection.find(".select2-search-choice:not(.select2-locked)").last()); | ||||
killEvent(e); | ||||
return; | ||||
} else { | ||||
this.selectChoice(null); | ||||
} | ||||
if (this.opened()) { | ||||
switch (e.which) { | ||||
case KEY.UP: | ||||
case KEY.DOWN: | ||||
this.moveHighlight((e.which === KEY.UP) ? -1 : 1); | ||||
killEvent(e); | ||||
return; | ||||
case KEY.ENTER: | ||||
this.selectHighlighted(); | ||||
killEvent(e); | ||||
return; | ||||
case KEY.TAB: | ||||
this.selectHighlighted({noFocus:true}); | ||||
this.close(); | ||||
return; | ||||
case KEY.ESC: | ||||
this.cancel(e); | ||||
killEvent(e); | ||||
return; | ||||
} | ||||
} | ||||
if (e.which === KEY.TAB || KEY.isControl(e) || KEY.isFunctionKey(e) | ||||
|| e.which === KEY.BACKSPACE || e.which === KEY.ESC) { | ||||
return; | ||||
} | ||||
if (e.which === KEY.ENTER) { | ||||
if (this.opts.openOnEnter === false) { | ||||
return; | ||||
} else if (e.altKey || e.ctrlKey || e.shiftKey || e.metaKey) { | ||||
return; | ||||
} | ||||
} | ||||
this.open(); | ||||
if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) { | ||||
// prevent the page from scrolling | ||||
killEvent(e); | ||||
} | ||||
if (e.which === KEY.ENTER) { | ||||
// prevent form from being submitted | ||||
killEvent(e); | ||||
} | ||||
})); | ||||
this.search.on("keyup", this.bind(function (e) { | ||||
this.keydowns = 0; | ||||
this.resizeSearch(); | ||||
}) | ||||
); | ||||
this.search.on("blur", this.bind(function(e) { | ||||
this.container.removeClass("select2-container-active"); | ||||
this.search.removeClass("select2-focused"); | ||||
this.selectChoice(null); | ||||
if (!this.opened()) this.clearSearch(); | ||||
e.stopImmediatePropagation(); | ||||
this.opts.element.trigger($.Event("select2-blur")); | ||||
})); | ||||
this.container.on("click", selector, this.bind(function (e) { | ||||
if (!this.isInterfaceEnabled()) return; | ||||
if ($(e.target).closest(".select2-search-choice").length > 0) { | ||||
// clicked inside a select2 search choice, do not open | ||||
return; | ||||
} | ||||
this.selectChoice(null); | ||||
this.clearPlaceholder(); | ||||
if (!this.container.hasClass("select2-container-active")) { | ||||
this.opts.element.trigger($.Event("select2-focus")); | ||||
} | ||||
this.open(); | ||||
this.focusSearch(); | ||||
e.preventDefault(); | ||||
})); | ||||
this.container.on("focus", selector, this.bind(function () { | ||||
if (!this.isInterfaceEnabled()) return; | ||||
if (!this.container.hasClass("select2-container-active")) { | ||||
this.opts.element.trigger($.Event("select2-focus")); | ||||
} | ||||
this.container.addClass("select2-container-active"); | ||||
this.dropdown.addClass("select2-drop-active"); | ||||
this.clearPlaceholder(); | ||||
})); | ||||
this.initContainerWidth(); | ||||
this.opts.element.addClass("select2-offscreen"); | ||||
// set the placeholder if necessary | ||||
this.clearSearch(); | ||||
}, | ||||
// multi | ||||
enableInterface: function() { | ||||
if (this.parent.enableInterface.apply(this, arguments)) { | ||||
this.search.prop("disabled", !this.isInterfaceEnabled()); | ||||
} | ||||
}, | ||||
// multi | ||||
initSelection: function () { | ||||
var data; | ||||
if (this.opts.element.val() === "" && this.opts.element.text() === "") { | ||||
this.updateSelection([]); | ||||
this.close(); | ||||
// set the placeholder if necessary | ||||
this.clearSearch(); | ||||
} | ||||
if (this.select || this.opts.element.val() !== "") { | ||||
var self = this; | ||||
this.opts.initSelection.call(null, this.opts.element, function(data){ | ||||
if (data !== undefined && data !== null) { | ||||
self.updateSelection(data); | ||||
self.close(); | ||||
// set the placeholder if necessary | ||||
self.clearSearch(); | ||||
} | ||||
}); | ||||
} | ||||
}, | ||||
// multi | ||||
clearSearch: function () { | ||||
var placeholder = this.getPlaceholder(), | ||||
maxWidth = this.getMaxSearchWidth(); | ||||
if (placeholder !== undefined && this.getVal().length === 0 && this.search.hasClass("select2-focused") === false) { | ||||
this.search.val(placeholder).addClass("select2-default"); | ||||
// stretch the search box to full width of the container so as much of the placeholder is visible as possible | ||||
// we could call this.resizeSearch(), but we do not because that requires a sizer and we do not want to create one so early because of a firefox bug, see #944 | ||||
this.search.width(maxWidth > 0 ? maxWidth : this.container.css("width")); | ||||
} else { | ||||
this.search.val("").width(10); | ||||
} | ||||
}, | ||||
// multi | ||||
clearPlaceholder: function () { | ||||
if (this.search.hasClass("select2-default")) { | ||||
this.search.val("").removeClass("select2-default"); | ||||
} | ||||
}, | ||||
// multi | ||||
opening: function () { | ||||
this.clearPlaceholder(); // should be done before super so placeholder is not used to search | ||||
this.resizeSearch(); | ||||
this.parent.opening.apply(this, arguments); | ||||
this.focusSearch(); | ||||
// initializes search's value with nextSearchTerm (if defined by user) | ||||
// ignore nextSearchTerm if the dropdown is opened by the user pressing a letter | ||||
if(this.search.val() === "") { | ||||
if(this.nextSearchTerm != undefined){ | ||||
this.search.val(this.nextSearchTerm); | ||||
this.search.select(); | ||||
} | ||||
} | ||||
this.updateResults(true); | ||||
if (this.opts.shouldFocusInput(this)) { | ||||
this.search.focus(); | ||||
} | ||||
this.opts.element.trigger($.Event("select2-open")); | ||||
}, | ||||
// multi | ||||
close: function () { | ||||
if (!this.opened()) return; | ||||
this.parent.close.apply(this, arguments); | ||||
}, | ||||
// multi | ||||
focus: function () { | ||||
this.close(); | ||||
this.search.focus(); | ||||
}, | ||||
// multi | ||||
isFocused: function () { | ||||
return this.search.hasClass("select2-focused"); | ||||
}, | ||||
// multi | ||||
updateSelection: function (data) { | ||||
var ids = [], filtered = [], self = this; | ||||
// filter out duplicates | ||||
$(data).each(function () { | ||||
if (indexOf(self.id(this), ids) < 0) { | ||||
ids.push(self.id(this)); | ||||
filtered.push(this); | ||||
} | ||||
}); | ||||
data = filtered; | ||||
this.selection.find(".select2-search-choice").remove(); | ||||
$(data).each(function () { | ||||
self.addSelectedChoice(this); | ||||
}); | ||||
self.postprocessResults(); | ||||
}, | ||||
// multi | ||||
tokenize: function() { | ||||
var input = this.search.val(); | ||||
input = this.opts.tokenizer.call(this, input, this.data(), this.bind(this.onSelect), this.opts); | ||||
if (input != null && input != undefined) { | ||||
this.search.val(input); | ||||
if (input.length > 0) { | ||||
this.open(); | ||||
} | ||||
} | ||||
}, | ||||
// multi | ||||
onSelect: function (data, options) { | ||||
if (!this.triggerSelect(data)) { return; } | ||||
this.addSelectedChoice(data); | ||||
this.opts.element.trigger({ type: "selected", val: this.id(data), choice: data }); | ||||
// keep track of the search's value before it gets cleared | ||||
this.nextSearchTerm = this.opts.nextSearchTerm(data, this.search.val()); | ||||
this.clearSearch(); | ||||
this.updateResults(); | ||||
if (this.select || !this.opts.closeOnSelect) this.postprocessResults(data, false, this.opts.closeOnSelect===true); | ||||
if (this.opts.closeOnSelect) { | ||||
this.close(); | ||||
this.search.width(10); | ||||
} else { | ||||
if (this.countSelectableResults()>0) { | ||||
this.search.width(10); | ||||
this.resizeSearch(); | ||||
if (this.getMaximumSelectionSize() > 0 && this.val().length >= this.getMaximumSelectionSize()) { | ||||
// if we reached max selection size repaint the results so choices | ||||
// are replaced with the max selection reached message | ||||
this.updateResults(true); | ||||
} else { | ||||
// initializes search's value with nextSearchTerm and update search result | ||||
if(this.nextSearchTerm != undefined){ | ||||
this.search.val(this.nextSearchTerm); | ||||
this.updateResults(); | ||||
this.search.select(); | ||||
} | ||||
} | ||||
this.positionDropdown(); | ||||
} else { | ||||
// if nothing left to select close | ||||
this.close(); | ||||
this.search.width(10); | ||||
} | ||||
} | ||||
// since its not possible to select an element that has already been | ||||
// added we do not need to check if this is a new element before firing change | ||||
this.triggerChange({ added: data }); | ||||
if (!options || !options.noFocus) | ||||
this.focusSearch(); | ||||
}, | ||||
// multi | ||||
cancel: function () { | ||||
this.close(); | ||||
this.focusSearch(); | ||||
}, | ||||
addSelectedChoice: function (data) { | ||||
var enableChoice = !data.locked, | ||||
enabledItem = $( | ||||
"<li class='select2-search-choice'>" + | ||||
" <div></div>" + | ||||
" <a href='#' class='select2-search-choice-close' tabindex='-1'></a>" + | ||||
"</li>"), | ||||
disabledItem = $( | ||||
"<li class='select2-search-choice select2-locked'>" + | ||||
"<div></div>" + | ||||
"</li>"); | ||||
var choice = enableChoice ? enabledItem : disabledItem, | ||||
id = this.id(data), | ||||
val = this.getVal(), | ||||
formatted, | ||||
cssClass; | ||||
formatted=this.opts.formatSelection(data, choice.find("div"), this.opts.escapeMarkup); | ||||
if (formatted != undefined) { | ||||
choice.find("div").replaceWith("<div>"+formatted+"</div>"); | ||||
} | ||||
cssClass=this.opts.formatSelectionCssClass(data, choice.find("div")); | ||||
if (cssClass != undefined) { | ||||
choice.addClass(cssClass); | ||||
} | ||||
if(enableChoice){ | ||||
choice.find(".select2-search-choice-close") | ||||
.on("mousedown", killEvent) | ||||
.on("click dblclick", this.bind(function (e) { | ||||
if (!this.isInterfaceEnabled()) return; | ||||
this.unselect($(e.target)); | ||||
this.selection.find(".select2-search-choice-focus").removeClass("select2-search-choice-focus"); | ||||
killEvent(e); | ||||
this.close(); | ||||
this.focusSearch(); | ||||
})).on("focus", this.bind(function () { | ||||
if (!this.isInterfaceEnabled()) return; | ||||
this.container.addClass("select2-container-active"); | ||||
this.dropdown.addClass("select2-drop-active"); | ||||
})); | ||||
} | ||||
choice.data("select2-data", data); | ||||
choice.insertBefore(this.searchContainer); | ||||
val.push(id); | ||||
this.setVal(val); | ||||
}, | ||||
// multi | ||||
unselect: function (selected) { | ||||
var val = this.getVal(), | ||||
data, | ||||
index; | ||||
selected = selected.closest(".select2-search-choice"); | ||||
if (selected.length === 0) { | ||||
throw "Invalid argument: " + selected + ". Must be .select2-search-choice"; | ||||
} | ||||
data = selected.data("select2-data"); | ||||
if (!data) { | ||||
// prevent a race condition when the 'x' is clicked really fast repeatedly the event can be queued | ||||
// and invoked on an element already removed | ||||
return; | ||||
} | ||||
var evt = $.Event("select2-removing"); | ||||
evt.val = this.id(data); | ||||
evt.choice = data; | ||||
this.opts.element.trigger(evt); | ||||
if (evt.isDefaultPrevented()) { | ||||
return false; | ||||
} | ||||
while((index = indexOf(this.id(data), val)) >= 0) { | ||||
val.splice(index, 1); | ||||
this.setVal(val); | ||||
if (this.select) this.postprocessResults(); | ||||
} | ||||
selected.remove(); | ||||
this.opts.element.trigger({ type: "select2-removed", val: this.id(data), choice: data }); | ||||
this.triggerChange({ removed: data }); | ||||
return true; | ||||
}, | ||||
// multi | ||||
postprocessResults: function (data, initial, noHighlightUpdate) { | ||||
var val = this.getVal(), | ||||
choices = this.results.find(".select2-result"), | ||||
compound = this.results.find(".select2-result-with-children"), | ||||
self = this; | ||||
choices.each2(function (i, choice) { | ||||
var id = self.id(choice.data("select2-data")); | ||||
if (indexOf(id, val) >= 0) { | ||||
choice.addClass("select2-selected"); | ||||
// mark all children of the selected parent as selected | ||||
choice.find(".select2-result-selectable").addClass("select2-selected"); | ||||
} | ||||
}); | ||||
compound.each2(function(i, choice) { | ||||
// hide an optgroup if it doesn't have any selectable children | ||||
if (!choice.is('.select2-result-selectable') | ||||
&& choice.find(".select2-result-selectable:not(.select2-selected)").length === 0) { | ||||
choice.addClass("select2-selected"); | ||||
} | ||||
}); | ||||
if (this.highlight() == -1 && noHighlightUpdate !== false){ | ||||
self.highlight(0); | ||||
} | ||||
//If all results are chosen render formatNoMatches | ||||
if(!this.opts.createSearchChoice && !choices.filter('.select2-result:not(.select2-selected)').length > 0){ | ||||
if(!data || data && !data.more && this.results.find(".select2-no-results").length === 0) { | ||||
if (checkFormatter(self.opts.formatNoMatches, "formatNoMatches")) { | ||||
this.results.append("<li class='select2-no-results'>" + evaluate(self.opts.formatNoMatches, self.opts.element, self.search.val()) + "</li>"); | ||||
} | ||||
} | ||||
} | ||||
}, | ||||
// multi | ||||
getMaxSearchWidth: function() { | ||||
return this.selection.width() - getSideBorderPadding(this.search); | ||||
}, | ||||
// multi | ||||
resizeSearch: function () { | ||||
var minimumWidth, left, maxWidth, containerLeft, searchWidth, | ||||
sideBorderPadding = getSideBorderPadding(this.search); | ||||
minimumWidth = measureTextWidth(this.search) + 10; | ||||
left = this.search.offset().left; | ||||
maxWidth = this.selection.width(); | ||||
containerLeft = this.selection.offset().left; | ||||
searchWidth = maxWidth - (left - containerLeft) - sideBorderPadding; | ||||
if (searchWidth < minimumWidth) { | ||||
searchWidth = maxWidth - sideBorderPadding; | ||||
} | ||||
if (searchWidth < 40) { | ||||
searchWidth = maxWidth - sideBorderPadding; | ||||
} | ||||
if (searchWidth <= 0) { | ||||
searchWidth = minimumWidth; | ||||
} | ||||
this.search.width(Math.floor(searchWidth)); | ||||
}, | ||||
// multi | ||||
getVal: function () { | ||||
var val; | ||||
if (this.select) { | ||||
val = this.select.val(); | ||||
return val === null ? [] : val; | ||||
} else { | ||||
val = this.opts.element.val(); | ||||
return splitVal(val, this.opts.separator); | ||||
} | ||||
}, | ||||
// multi | ||||
setVal: function (val) { | ||||
var unique; | ||||
if (this.select) { | ||||
this.select.val(val); | ||||
} else { | ||||
unique = []; | ||||
// filter out duplicates | ||||
$(val).each(function () { | ||||
if (indexOf(this, unique) < 0) unique.push(this); | ||||
}); | ||||
this.opts.element.val(unique.length === 0 ? "" : unique.join(this.opts.separator)); | ||||
} | ||||
}, | ||||
// multi | ||||
buildChangeDetails: function (old, current) { | ||||
var current = current.slice(0), | ||||
old = old.slice(0); | ||||
// remove intersection from each array | ||||
for (var i = 0; i < current.length; i++) { | ||||
for (var j = 0; j < old.length; j++) { | ||||
if (equal(this.opts.id(current[i]), this.opts.id(old[j]))) { | ||||
current.splice(i, 1); | ||||
if(i>0){ | ||||
i--; | ||||
} | ||||
old.splice(j, 1); | ||||
j--; | ||||
} | ||||
} | ||||
} | ||||
return {added: current, removed: old}; | ||||
}, | ||||
// multi | ||||
val: function (val, triggerChange) { | ||||
var oldData, self=this; | ||||
if (arguments.length === 0) { | ||||
return this.getVal(); | ||||
} | ||||
oldData=this.data(); | ||||
if (!oldData.length) oldData=[]; | ||||
// val is an id. !val is true for [undefined,null,'',0] - 0 is legal | ||||
if (!val && val !== 0) { | ||||
this.opts.element.val(""); | ||||
this.updateSelection([]); | ||||
this.clearSearch(); | ||||
if (triggerChange) { | ||||
this.triggerChange({added: this.data(), removed: oldData}); | ||||
} | ||||
return; | ||||
} | ||||
// val is a list of ids | ||||
this.setVal(val); | ||||
if (this.select) { | ||||
this.opts.initSelection(this.select, this.bind(this.updateSelection)); | ||||
if (triggerChange) { | ||||
this.triggerChange(this.buildChangeDetails(oldData, this.data())); | ||||
} | ||||
} else { | ||||
if (this.opts.initSelection === undefined) { | ||||
throw new Error("val() cannot be called if initSelection() is not defined"); | ||||
} | ||||
this.opts.initSelection(this.opts.element, function(data){ | ||||
var ids=$.map(data, self.id); | ||||
self.setVal(ids); | ||||
self.updateSelection(data); | ||||
self.clearSearch(); | ||||
if (triggerChange) { | ||||
self.triggerChange(self.buildChangeDetails(oldData, self.data())); | ||||
} | ||||
}); | ||||
} | ||||
this.clearSearch(); | ||||
}, | ||||
// multi | ||||
onSortStart: function() { | ||||
if (this.select) { | ||||
throw new Error("Sorting of elements is not supported when attached to <select>. Attach to <input type='hidden'/> instead."); | ||||
} | ||||
// collapse search field into 0 width so its container can be collapsed as well | ||||
this.search.width(0); | ||||
// hide the container | ||||
this.searchContainer.hide(); | ||||
}, | ||||
// multi | ||||
onSortEnd:function() { | ||||
var val=[], self=this; | ||||
// show search and move it to the end of the list | ||||
this.searchContainer.show(); | ||||
// make sure the search container is the last item in the list | ||||
this.searchContainer.appendTo(this.searchContainer.parent()); | ||||
// since we collapsed the width in dragStarted, we resize it here | ||||
this.resizeSearch(); | ||||
// update selection | ||||
this.selection.find(".select2-search-choice").each(function() { | ||||
val.push(self.opts.id($(this).data("select2-data"))); | ||||
}); | ||||
this.setVal(val); | ||||
this.triggerChange(); | ||||
}, | ||||
// multi | ||||
data: function(values, triggerChange) { | ||||
var self=this, ids, old; | ||||
if (arguments.length === 0) { | ||||
return this.selection | ||||
.children(".select2-search-choice") | ||||
.map(function() { return $(this).data("select2-data"); }) | ||||
.get(); | ||||
} else { | ||||
old = this.data(); | ||||
if (!values) { values = []; } | ||||
ids = $.map(values, function(e) { return self.opts.id(e); }); | ||||
this.setVal(ids); | ||||
this.updateSelection(values); | ||||
this.clearSearch(); | ||||
if (triggerChange) { | ||||
this.triggerChange(this.buildChangeDetails(old, this.data())); | ||||
} | ||||
} | ||||
} | ||||
}); | ||||
$.fn.select2 = function () { | ||||
var args = Array.prototype.slice.call(arguments, 0), | ||||
opts, | ||||
select2, | ||||
method, value, multiple, | ||||
allowedMethods = ["val", "destroy", "opened", "open", "close", "focus", "isFocused", "container", "dropdown", "onSortStart", "onSortEnd", "enable", "disable", "readonly", "positionDropdown", "data", "search"], | ||||
valueMethods = ["opened", "isFocused", "container", "dropdown"], | ||||
propertyMethods = ["val", "data"], | ||||
methodsMap = { search: "externalSearch" }; | ||||
this.each(function () { | ||||
if (args.length === 0 || typeof(args[0]) === "object") { | ||||
opts = args.length === 0 ? {} : $.extend({}, args[0]); | ||||
opts.element = $(this); | ||||
if (opts.element.get(0).tagName.toLowerCase() === "select") { | ||||
multiple = opts.element.prop("multiple"); | ||||
} else { | ||||
multiple = opts.multiple || false; | ||||
if ("tags" in opts) {opts.multiple = multiple = true;} | ||||
} | ||||
select2 = multiple ? new window.Select2["class"].multi() : new window.Select2["class"].single(); | ||||
select2.init(opts); | ||||
} else if (typeof(args[0]) === "string") { | ||||
if (indexOf(args[0], allowedMethods) < 0) { | ||||
throw "Unknown method: " + args[0]; | ||||
} | ||||
value = undefined; | ||||
select2 = $(this).data("select2"); | ||||
if (select2 === undefined) return; | ||||
method=args[0]; | ||||
if (method === "container") { | ||||
value = select2.container; | ||||
} else if (method === "dropdown") { | ||||
value = select2.dropdown; | ||||
} else { | ||||
if (methodsMap[method]) method = methodsMap[method]; | ||||
value = select2[method].apply(select2, args.slice(1)); | ||||
} | ||||
if (indexOf(args[0], valueMethods) >= 0 | ||||
|| (indexOf(args[0], propertyMethods) >= 0 && args.length == 1)) { | ||||
return false; // abort the iteration, ready to return first matched value | ||||
} | ||||
} else { | ||||
throw "Invalid arguments to select2 plugin: " + args; | ||||
} | ||||
}); | ||||
return (value === undefined) ? this : value; | ||||
}; | ||||
// plugin defaults, accessible to users | ||||
$.fn.select2.defaults = { | ||||
width: "copy", | ||||
loadMorePadding: 0, | ||||
closeOnSelect: true, | ||||
openOnEnter: true, | ||||
containerCss: {}, | ||||
dropdownCss: {}, | ||||
containerCssClass: "", | ||||
dropdownCssClass: "", | ||||
formatResult: function(result, container, query, escapeMarkup) { | ||||
var markup=[]; | ||||
markMatch(result.text, query.term, markup, escapeMarkup); | ||||
return markup.join(""); | ||||
}, | ||||
formatSelection: function (data, container, escapeMarkup) { | ||||
return data ? escapeMarkup(data.text) : undefined; | ||||
}, | ||||
sortResults: function (results, container, query) { | ||||
return results; | ||||
}, | ||||
formatResultCssClass: function(data) {return data.css;}, | ||||
formatSelectionCssClass: function(data, container) {return undefined;}, | ||||
formatMatches: function (matches) { if (matches === 1) { return "One result is available, press enter to select it."; } return matches + " results are available, use up and down arrow keys to navigate."; }, | ||||
formatNoMatches: function () { return "No matches found"; }, | ||||
formatInputTooShort: function (input, min) { var n = min - input.length; return "Please enter " + n + " or more character" + (n == 1? "" : "s"); }, | ||||
formatInputTooLong: function (input, max) { var n = input.length - max; return "Please delete " + n + " character" + (n == 1? "" : "s"); }, | ||||
formatSelectionTooBig: function (limit) { return "You can only select " + limit + " item" + (limit == 1 ? "" : "s"); }, | ||||
formatLoadMore: function (pageNumber) { return "Loading more results…"; }, | ||||
formatSearching: function () { return "Searching…"; }, | ||||
minimumResultsForSearch: 0, | ||||
minimumInputLength: 0, | ||||
maximumInputLength: null, | ||||
maximumSelectionSize: 0, | ||||
id: function (e) { return e == undefined ? null : e.id; }, | ||||
matcher: function(term, text) { | ||||
return stripDiacritics(''+text).toUpperCase().indexOf(stripDiacritics(''+term).toUpperCase()) >= 0; | ||||
}, | ||||
separator: ",", | ||||
tokenSeparators: [], | ||||
tokenizer: defaultTokenizer, | ||||
escapeMarkup: defaultEscapeMarkup, | ||||
blurOnChange: false, | ||||
selectOnBlur: false, | ||||
adaptContainerCssClass: function(c) { return c; }, | ||||
adaptDropdownCssClass: function(c) { return null; }, | ||||
nextSearchTerm: function(selectedObject, currentSearchTerm) { return undefined; }, | ||||
searchInputPlaceholder: '', | ||||
createSearchChoicePosition: 'top', | ||||
shouldFocusInput: function (instance) { | ||||
// Attempt to detect touch devices | ||||
var supportsTouchEvents = (('ontouchstart' in window) || | ||||
(navigator.msMaxTouchPoints > 0)); | ||||
// Only devices which support touch events should be special cased | ||||
if (!supportsTouchEvents) { | ||||
return true; | ||||
} | ||||
// Never focus the input if search is disabled | ||||
if (instance.opts.minimumResultsForSearch < 0) { | ||||
return false; | ||||
} | ||||
return true; | ||||
} | ||||
}; | ||||
$.fn.select2.ajaxDefaults = { | ||||
transport: $.ajax, | ||||
params: { | ||||
type: "GET", | ||||
cache: false, | ||||
dataType: "json" | ||||
} | ||||
}; | ||||
// exports | ||||
window.Select2 = { | ||||
query: { | ||||
ajax: ajax, | ||||
local: local, | ||||
tags: tags | ||||
}, util: { | ||||
debounce: debounce, | ||||
markMatch: markMatch, | ||||
escapeMarkup: defaultEscapeMarkup, | ||||
stripDiacritics: stripDiacritics | ||||
}, "class": { | ||||
"abstract": AbstractSelect2, | ||||
"single": SingleSelect2, | ||||
"multi": MultiSelect2 | ||||
} | ||||
}; | ||||
}(jQuery)); | ||||