2777 lines
102 KiB
JavaScript
2777 lines
102 KiB
JavaScript
/*
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Copyright 2012 Igor Vaynberg
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Version: @@ver@@ Timestamp: @@timestamp@@
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This software is licensed under the Apache License, Version 2.0 (the "Apache License") or the GNU
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General Public License version 2 (the "GPL License"). You may choose either license to govern your
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use of this software only upon the condition that you accept all of the terms of either the Apache
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License or the GPL License.
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You may obtain a copy of the Apache License and the GPL License at:
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http://www.apache.org/licenses/LICENSE-2.0
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http://www.gnu.org/licenses/gpl-2.0.html
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Unless required by applicable law or agreed to in writing, software distributed under the
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Apache License or the GPL Licesnse is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied. See the Apache License and the GPL License for
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the specific language governing permissions and limitations under the Apache License and the GPL License.
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*/
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(function ($) {
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if(typeof $.fn.each2 == "undefined"){
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$.fn.extend({
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/*
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* 4-10 times faster .each replacement
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* use it carefully, as it overrides jQuery context of element on each iteration
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*/
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each2 : function (c) {
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var j = $([0]), i = -1, l = this.length;
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while (
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++i < l
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&& (j.context = j[0] = this[i])
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&& c.call(j[0], i, j) !== false //"this"=DOM, i=index, j=jQuery object
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);
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return this;
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}
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});
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}
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})(jQuery);
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(function ($, undefined) {
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"use strict";
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/*global document, window, jQuery, console */
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if (window.Select2 !== undefined) {
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return;
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}
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var KEY, AbstractSelect2, SingleSelect2, MultiSelect2, nextUid, sizer,
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lastMousePosition, $document;
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KEY = {
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TAB: 9,
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ENTER: 13,
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ESC: 27,
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SPACE: 32,
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LEFT: 37,
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UP: 38,
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RIGHT: 39,
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DOWN: 40,
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SHIFT: 16,
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CTRL: 17,
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ALT: 18,
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PAGE_UP: 33,
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PAGE_DOWN: 34,
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HOME: 36,
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END: 35,
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BACKSPACE: 8,
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DELETE: 46,
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isArrow: function (k) {
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k = k.which ? k.which : k;
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switch (k) {
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case KEY.LEFT:
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case KEY.RIGHT:
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case KEY.UP:
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case KEY.DOWN:
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return true;
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}
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return false;
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},
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isControl: function (e) {
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var k = e.which;
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switch (k) {
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case KEY.SHIFT:
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case KEY.CTRL:
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case KEY.ALT:
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return true;
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}
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if (e.metaKey) return true;
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return false;
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},
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isFunctionKey: function (k) {
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k = k.which ? k.which : k;
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return k >= 112 && k <= 123;
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}
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};
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$document = $(document);
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nextUid=(function() { var counter=1; return function() { return counter++; }; }());
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function indexOf(value, array) {
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var i = 0, l = array.length;
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for (; i < l; i = i + 1) {
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if (equal(value, array[i])) return i;
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}
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return -1;
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}
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/**
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* Compares equality of a and b
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* @param a
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* @param b
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*/
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function equal(a, b) {
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if (a === b) return true;
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if (a === undefined || b === undefined) return false;
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if (a === null || b === null) return false;
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if (a.constructor === String) return a+'' === b+''; // IE requires a+'' instead of just a
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if (b.constructor === String) return b+'' === a+''; // IE requires b+'' instead of just b
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return false;
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}
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/**
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* Splits the string into an array of values, trimming each value. An empty array is returned for nulls or empty
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* strings
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* @param string
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* @param separator
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*/
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function splitVal(string, separator) {
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var val, i, l;
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if (string === null || string.length < 1) return [];
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val = string.split(separator);
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for (i = 0, l = val.length; i < l; i = i + 1) val[i] = $.trim(val[i]);
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return val;
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}
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function getSideBorderPadding(element) {
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return element.outerWidth(false) - element.width();
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}
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function installKeyUpChangeEvent(element) {
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var key="keyup-change-value";
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element.bind("keydown", function () {
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if ($.data(element, key) === undefined) {
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$.data(element, key, element.val());
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}
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});
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element.bind("keyup", function () {
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var val= $.data(element, key);
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if (val !== undefined && element.val() !== val) {
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$.removeData(element, key);
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element.trigger("keyup-change");
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}
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});
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}
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$document.bind("mousemove", function (e) {
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lastMousePosition = {x: e.pageX, y: e.pageY};
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});
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/**
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* filters mouse events so an event is fired only if the mouse moved.
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*
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* filters out mouse events that occur when mouse is stationary but
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* the elements under the pointer are scrolled.
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*/
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function installFilteredMouseMove(element) {
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element.bind("mousemove", function (e) {
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var lastpos = lastMousePosition;
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if (lastpos === undefined || lastpos.x !== e.pageX || lastpos.y !== e.pageY) {
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$(e.target).trigger("mousemove-filtered", e);
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}
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});
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}
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/**
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* Debounces a function. Returns a function that calls the original fn function only if no invocations have been made
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* within the last quietMillis milliseconds.
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*
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* @param quietMillis number of milliseconds to wait before invoking fn
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* @param fn function to be debounced
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* @param ctx object to be used as this reference within fn
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* @return debounced version of fn
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*/
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function debounce(quietMillis, fn, ctx) {
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ctx = ctx || undefined;
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var timeout;
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return function () {
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var args = arguments;
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window.clearTimeout(timeout);
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timeout = window.setTimeout(function() {
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fn.apply(ctx, args);
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}, quietMillis);
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};
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}
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/**
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* A simple implementation of a thunk
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* @param formula function used to lazily initialize the thunk
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* @return {Function}
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*/
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function thunk(formula) {
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var evaluated = false,
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value;
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return function() {
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if (evaluated === false) { value = formula(); evaluated = true; }
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return value;
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};
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};
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function installDebouncedScroll(threshold, element) {
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var notify = debounce(threshold, function (e) { element.trigger("scroll-debounced", e);});
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element.bind("scroll", function (e) {
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if (indexOf(e.target, element.get()) >= 0) notify(e);
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});
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}
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function focus($el) {
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if ($el[0] === document.activeElement) return;
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/* set the focus in a 0 timeout - that way the focus is set after the processing
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of the current event has finished - which seems like the only reliable way
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to set focus */
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window.setTimeout(function() {
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var el=$el[0], pos=$el.val().length, range;
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$el.focus();
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/* make sure el received focus so we do not error out when trying to manipulate the caret.
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sometimes modals or others listeners may steal it after its set */
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if ($el.is(":visible") && el === document.activeElement) {
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/* after the focus is set move the caret to the end, necessary when we val()
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just before setting focus */
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if(el.setSelectionRange)
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{
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el.setSelectionRange(pos, pos);
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}
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else if (el.createTextRange) {
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range = el.createTextRange();
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range.collapse(false);
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range.select();
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}
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}
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}, 0);
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}
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function killEvent(event) {
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event.preventDefault();
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event.stopPropagation();
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}
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function killEventImmediately(event) {
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event.preventDefault();
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event.stopImmediatePropagation();
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}
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function measureTextWidth(e) {
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if (!sizer){
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var style = e[0].currentStyle || window.getComputedStyle(e[0], null);
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sizer = $(document.createElement("div")).css({
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position: "absolute",
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left: "-10000px",
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top: "-10000px",
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display: "none",
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fontSize: style.fontSize,
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fontFamily: style.fontFamily,
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fontStyle: style.fontStyle,
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fontWeight: style.fontWeight,
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letterSpacing: style.letterSpacing,
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textTransform: style.textTransform,
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whiteSpace: "nowrap"
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});
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sizer.attr("class","select2-sizer");
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$("body").append(sizer);
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}
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sizer.text(e.val());
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return sizer.width();
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}
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function syncCssClasses(dest, src, adapter) {
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var classes, replacements = [], adapted;
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classes = dest.attr("class");
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if (classes) {
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classes = '' + classes; // for IE which returns object
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$(classes.split(" ")).each2(function() {
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if (this.indexOf("select2-") === 0) {
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replacements.push(this);
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}
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});
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}
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classes = src.attr("class");
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if (classes) {
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classes = '' + classes; // for IE which returns object
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$(classes.split(" ")).each2(function() {
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if (this.indexOf("select2-") !== 0) {
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adapted = adapter(this);
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if (adapted) {
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replacements.push(this);
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}
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}
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});
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}
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dest.attr("class", replacements.join(" "));
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}
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function markMatch(text, term, markup, escapeMarkup) {
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var match=text.toUpperCase().indexOf(term.toUpperCase()),
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tl=term.length;
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if (match<0) {
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markup.push(escapeMarkup(text));
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return;
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}
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markup.push(escapeMarkup(text.substring(0, match)));
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markup.push("<span class='select2-match'>");
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markup.push(escapeMarkup(text.substring(match, match + tl)));
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markup.push("</span>");
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markup.push(escapeMarkup(text.substring(match + tl, text.length)));
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}
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/**
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* Produces an ajax-based query function
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*
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* @param options object containing configuration paramters
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* @param options.transport function that will be used to execute the ajax request. must be compatible with parameters supported by $.ajax
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* @param options.url url for the data
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* @param options.data a function(searchTerm, pageNumber, context) that should return an object containing query string parameters for the above url.
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* @param options.dataType request data type: ajax, jsonp, other datatatypes supported by jQuery's $.ajax function or the transport function if specified
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* @param options.traditional a boolean flag that should be true if you wish to use the traditional style of param serialization for the ajax request
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* @param options.quietMillis (optional) milliseconds to wait before making the ajaxRequest, helps debounce the ajax function if invoked too often
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* @param options.results a function(remoteData, pageNumber) that converts data returned form the remote request to the format expected by Select2.
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* The expected format is an object containing the following keys:
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* results array of objects that will be used as choices
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* more (optional) boolean indicating whether there are more results available
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* Example: {results:[{id:1, text:'Red'},{id:2, text:'Blue'}], more:true}
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*/
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function ajax(options) {
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var timeout, // current scheduled but not yet executed request
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requestSequence = 0, // sequence used to drop out-of-order responses
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handler = null,
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quietMillis = options.quietMillis || 100,
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ajaxUrl = options.url,
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self = this;
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return function (query) {
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window.clearTimeout(timeout);
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timeout = window.setTimeout(function () {
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requestSequence += 1; // increment the sequence
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var requestNumber = requestSequence, // this request's sequence number
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data = options.data, // ajax data function
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url = ajaxUrl, // ajax url string or function
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transport = options.transport || $.ajax,
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type = options.type || 'GET', // set type of request (GET or POST)
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params = {};
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data = data ? data.call(self, query.term, query.page, query.context) : null;
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url = (typeof url === 'function') ? url.call(self, query.term, query.page, query.context) : url;
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if( null !== handler) { handler.abort(); }
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if (options.params) {
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if ($.isFunction(options.params)) {
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$.extend(params, options.params.call(self));
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} else {
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$.extend(params, options.params);
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}
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}
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$.extend(params, {
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url: url,
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dataType: options.dataType,
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data: data,
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type: type,
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cache: false,
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success: function (data) {
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if (requestNumber < requestSequence) {
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return;
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}
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// TODO - replace query.page with query so users have access to term, page, etc.
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var results = options.results(data, query.page);
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query.callback(results);
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}
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});
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handler = transport.call(self, params);
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}, quietMillis);
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};
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}
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/**
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* Produces a query function that works with a local array
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*
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* @param options object containing configuration parameters. The options parameter can either be an array or an
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* object.
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*
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* If the array form is used it is assumed that it contains objects with 'id' and 'text' keys.
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*
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* If the object form is used ti is assumed that it contains 'data' and 'text' keys. The 'data' key should contain
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* an array of objects that will be used as choices. These objects must contain at least an 'id' key. The 'text'
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* key can either be a String in which case it is expected that each element in the 'data' array has a key with the
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* value of 'text' which will be used to match choices. Alternatively, text can be a function(item) that can extract
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* the text.
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*/
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function local(options) {
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var data = options, // data elements
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dataText,
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tmp,
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text = function (item) { return ""+item.text; }; // function used to retrieve the text portion of a data item that is matched against the search
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if ($.isArray(data)) {
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tmp = data;
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data = { results: tmp };
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}
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if ($.isFunction(data) === false) {
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tmp = data;
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data = function() { return tmp; };
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}
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var dataItem = data();
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if (dataItem.text) {
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text = dataItem.text;
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// if text is not a function we assume it to be a key name
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if (!$.isFunction(text)) {
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dataText = data.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
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text = function (item) { return item[dataText]; };
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}
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}
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return function (query) {
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var t = query.term, filtered = { results: [] }, process;
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if (t === "") {
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query.callback(data());
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return;
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}
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process = function(datum, collection) {
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var group, attr;
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datum = datum[0];
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if (datum.children) {
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group = {};
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for (attr in datum) {
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if (datum.hasOwnProperty(attr)) group[attr]=datum[attr];
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}
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group.children=[];
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$(datum.children).each2(function(i, childDatum) { process(childDatum, group.children); });
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if (group.children.length || query.matcher(t, text(group), datum)) {
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collection.push(group);
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}
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} else {
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if (query.matcher(t, text(datum), datum)) {
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collection.push(datum);
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}
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}
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};
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$(data().results).each2(function(i, datum) { process(datum, filtered.results); });
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query.callback(filtered);
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};
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}
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// TODO javadoc
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function tags(data) {
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var isFunc = $.isFunction(data);
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return function (query) {
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var t = query.term, filtered = {results: []};
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$(isFunc ? data() : data).each(function () {
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var isObject = this.text !== undefined,
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text = isObject ? this.text : this;
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if (t === "" || query.matcher(t, text)) {
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filtered.results.push(isObject ? this : {id: this, text: this});
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}
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});
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query.callback(filtered);
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};
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}
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/**
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* Checks if the formatter function should be used.
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*
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* Throws an error if it is not a function. Returns true if it should be used,
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* false if no formatting should be performed.
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*
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* @param formatter
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*/
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function checkFormatter(formatter, formatterName) {
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if ($.isFunction(formatter)) return true;
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if (!formatter) return false;
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throw new Error("formatterName must be a function or a falsy value");
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}
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function evaluate(val) {
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return $.isFunction(val) ? val() : val;
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}
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function countResults(results) {
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var count = 0;
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$.each(results, function(i, item) {
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if (item.children) {
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count += countResults(item.children);
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} else {
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count++;
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}
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});
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return count;
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}
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/**
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* Default tokenizer. This function uses breaks the input on substring match of any string from the
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* opts.tokenSeparators array and uses opts.createSearchChoice to create the choice object. Both of those
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* two options have to be defined in order for the tokenizer to work.
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*
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* @param input text user has typed so far or pasted into the search field
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* @param selection currently selected choices
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* @param selectCallback function(choice) callback tho add the choice to selection
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* @param opts select2's opts
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* @return undefined/null to leave the current input unchanged, or a string to change the input to the returned value
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*/
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function defaultTokenizer(input, selection, selectCallback, opts) {
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var original = input, // store the original so we can compare and know if we need to tell the search to update its text
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dupe = false, // check for whether a token we extracted represents a duplicate selected choice
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token, // token
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index, // position at which the separator was found
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i, l, // looping variables
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separator; // the matched separator
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|
|
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(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;
|
|
}
|
|
|
|
/**
|
|
* 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 = $.extend(constructor.prototype, methods);
|
|
return constructor;
|
|
}
|
|
|
|
AbstractSelect2 = clazz(Object, {
|
|
|
|
// abstract
|
|
bind: function (func) {
|
|
var self = this;
|
|
return function () {
|
|
func.apply(self, arguments);
|
|
};
|
|
},
|
|
|
|
// abstract
|
|
init: function (opts) {
|
|
var results, search, resultsSelector = ".select2-results", mask;
|
|
|
|
// prepare options
|
|
this.opts = opts = this.prepareOpts(opts);
|
|
|
|
this.id=opts.id;
|
|
|
|
// destroy if called on an existing component
|
|
if (opts.element.data("select2") !== undefined &&
|
|
opts.element.data("select2") !== null) {
|
|
this.destroy();
|
|
}
|
|
|
|
this.enabled=true;
|
|
this.container = this.createContainer();
|
|
|
|
this.containerId="s2id_"+(opts.element.attr("id") || "autogen"+nextUid());
|
|
this.containerSelector="#"+this.containerId.replace(/([;&,\.\+\*\~':"\!\^#$%@\[\]\(\)=>\|])/g, '\\$1');
|
|
this.container.attr("id", this.containerId);
|
|
|
|
// cache the body so future lookups are cheap
|
|
this.body = thunk(function() { return opts.element.closest("body"); });
|
|
|
|
syncCssClasses(this.container, this.opts.element, this.opts.adaptContainerCssClass);
|
|
|
|
this.container.css(evaluate(opts.containerCss));
|
|
this.container.addClass(evaluate(opts.containerCssClass));
|
|
|
|
this.elementTabIndex = this.opts.element.attr("tabIndex");
|
|
|
|
// swap container for the element
|
|
this.opts.element
|
|
.data("select2", this)
|
|
.addClass("select2-offscreen")
|
|
.bind("focus.select2", function() { $(this).select2("focus"); })
|
|
.attr("tabIndex", "-1")
|
|
.before(this.container);
|
|
this.container.data("select2", this);
|
|
|
|
this.dropdown = this.container.find(".select2-drop");
|
|
this.dropdown.addClass(evaluate(opts.dropdownCssClass));
|
|
this.dropdown.data("select2", this);
|
|
|
|
this.results = results = this.container.find(resultsSelector);
|
|
this.search = search = this.container.find("input.select2-input");
|
|
|
|
search.attr("tabIndex", this.elementTabIndex);
|
|
|
|
this.resultsPage = 0;
|
|
this.context = null;
|
|
|
|
// initialize the container
|
|
this.initContainer();
|
|
|
|
installFilteredMouseMove(this.results);
|
|
this.dropdown.delegate(resultsSelector, "mousemove-filtered touchstart touchmove touchend", this.bind(this.highlightUnderEvent));
|
|
|
|
installDebouncedScroll(80, this.results);
|
|
this.dropdown.delegate(resultsSelector, "scroll-debounced", this.bind(this.loadMoreIfNeeded));
|
|
|
|
// if jquery.mousewheel plugin is installed we can prevent out-of-bounds scrolling of results via mousewheel
|
|
if ($.fn.mousewheel) {
|
|
results.mousewheel(function (e, delta, deltaX, deltaY) {
|
|
var top = results.scrollTop(), height;
|
|
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.bind("keyup-change input paste", this.bind(this.updateResults));
|
|
search.bind("focus", function () { search.addClass("select2-focused"); });
|
|
search.bind("blur", function () { search.removeClass("select2-focused");});
|
|
|
|
this.dropdown.delegate(resultsSelector, "mouseup", this.bind(function (e) {
|
|
if ($(e.target).closest(".select2-result-selectable").length > 0) {
|
|
this.highlightUnderEvent(e);
|
|
this.selectHighlighted(e);
|
|
}
|
|
}));
|
|
|
|
// trap all mouse events from leaving the dropdown. sometimes there may be a modal that is listening
|
|
// for mouse events outside of itself so it can close itself. since the dropdown is now outside the select2's
|
|
// dom it will trigger the popup close, which is not what we want
|
|
this.dropdown.bind("click mouseup mousedown", function (e) { e.stopPropagation(); });
|
|
|
|
if ($.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.element.is(":disabled") || opts.element.is("[readonly='readonly']")) this.disable();
|
|
},
|
|
|
|
// abstract
|
|
destroy: function () {
|
|
var select2 = this.opts.element.data("select2");
|
|
|
|
if (this.propertyObserver) { delete this.propertyObserver; this.propertyObserver = null; }
|
|
|
|
if (select2 !== undefined) {
|
|
|
|
select2.container.remove();
|
|
select2.dropdown.remove();
|
|
select2.opts.element
|
|
.removeClass("select2-offscreen")
|
|
.removeData("select2")
|
|
.unbind(".select2")
|
|
.attr({"tabIndex": this.elementTabIndex})
|
|
.show();
|
|
}
|
|
},
|
|
|
|
// abstract
|
|
prepareOpts: function (opts) {
|
|
var element, select, idKey, ajaxUrl;
|
|
|
|
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 = $.extend({}, {
|
|
populateResults: function(container, results, query) {
|
|
var populate, data, result, children, id=this.opts.id, self=this;
|
|
|
|
populate=function(results, container, depth) {
|
|
|
|
var i, l, result, selectable, disabled, compound, node, label, innerContainer, formatted;
|
|
|
|
results = opts.sortResults(results, container, query);
|
|
|
|
for (i = 0, l = results.length; i < l; i = i + 1) {
|
|
|
|
result=results[i];
|
|
|
|
disabled = (result.disabled === true);
|
|
selectable = (!disabled) && (id(result) !== undefined);
|
|
|
|
compound=result.children && result.children.length > 0;
|
|
|
|
node=$("<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));
|
|
|
|
label=$(document.createElement("div"));
|
|
label.addClass("select2-result-label");
|
|
|
|
formatted=opts.formatResult(result, label, query, self.opts.escapeMarkup);
|
|
if (formatted!==undefined) {
|
|
label.html(formatted);
|
|
}
|
|
|
|
node.append(label);
|
|
|
|
if (compound) {
|
|
|
|
innerContainer=$("<ul></ul>");
|
|
innerContainer.addClass("select2-result-sub");
|
|
populate(result.children, innerContainer, depth+1);
|
|
node.append(innerContainer);
|
|
}
|
|
|
|
node.data("select2-data", result);
|
|
container.append(node);
|
|
}
|
|
};
|
|
|
|
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.attr("data-select2-tags");
|
|
}
|
|
|
|
if (select) {
|
|
opts.query = this.bind(function (query) {
|
|
var data = { results: [], more: false },
|
|
term = query.term,
|
|
children, firstChild, process;
|
|
|
|
process=function(element, collection) {
|
|
var group;
|
|
if (element.is("option")) {
|
|
if (query.matcher(term, element.text(), element)) {
|
|
collection.push({id:element.attr("value"), text:element.text(), element: element.get(), css: element.attr("class"), disabled: equal(element.attr("disabled"), "disabled") });
|
|
}
|
|
} else if (element.is("optgroup")) {
|
|
group={text:element.attr("label"), children:[], element: element.get(), css: element.attr("class")};
|
|
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) {
|
|
firstChild = children[0];
|
|
if ($(firstChild).text() === "") {
|
|
children=children.not(firstChild);
|
|
}
|
|
}
|
|
|
|
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; };
|
|
opts.formatResultCssClass = function(data) { return data.css; };
|
|
} 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: term, text: term}; };
|
|
}
|
|
if (opts.initSelection === undefined) {
|
|
opts.initSelection = function (element, callback) {
|
|
var data = [];
|
|
$(splitVal(element.val(), opts.separator)).each(function () {
|
|
var id = this, text = this, tags=opts.tags;
|
|
if ($.isFunction(tags)) tags=tags();
|
|
$(tags).each(function() { if (equal(this.id, id)) { text = this.text; return false; } });
|
|
data.push({id: id, text: text});
|
|
});
|
|
|
|
callback(data);
|
|
};
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (typeof(opts.query) !== "function") {
|
|
throw "query function not defined for Select2 " + opts.element.attr("id");
|
|
}
|
|
|
|
return opts;
|
|
},
|
|
|
|
/**
|
|
* Monitor the original element for changes and update select2 accordingly
|
|
*/
|
|
// abstract
|
|
monitorSource: function () {
|
|
var el = this.opts.element, sync;
|
|
|
|
el.bind("change.select2", this.bind(function (e) {
|
|
if (this.opts.element.data("select2-change-triggered") !== true) {
|
|
this.initSelection();
|
|
}
|
|
}));
|
|
|
|
sync = this.bind(function () {
|
|
|
|
var enabled, readonly, self = this;
|
|
|
|
// sync enabled state
|
|
|
|
enabled = this.opts.element.attr("disabled") !== "disabled";
|
|
readonly = this.opts.element.attr("readonly") === "readonly";
|
|
|
|
enabled = enabled && !readonly;
|
|
|
|
if (this.enabled !== enabled) {
|
|
if (enabled) {
|
|
this.enable();
|
|
} else {
|
|
this.disable();
|
|
}
|
|
}
|
|
|
|
|
|
syncCssClasses(this.container, this.opts.element, this.opts.adaptContainerCssClass);
|
|
this.container.addClass(evaluate(this.opts.containerCssClass));
|
|
|
|
syncCssClasses(this.dropdown, this.opts.element, this.opts.adaptDropdownCssClass);
|
|
this.dropdown.addClass(evaluate(this.opts.dropdownCssClass));
|
|
|
|
});
|
|
|
|
// mozilla and IE
|
|
el.bind("propertychange.select2 DOMAttrModified.select2", sync);
|
|
// safari and chrome
|
|
if (typeof WebKitMutationObserver !== "undefined") {
|
|
if (this.propertyObserver) { delete this.propertyObserver; this.propertyObserver = null; }
|
|
this.propertyObserver = new WebKitMutationObserver(function (mutations) {
|
|
mutations.forEach(sync);
|
|
});
|
|
this.propertyObserver.observe(el.get(0), { attributes:true, subtree:false });
|
|
}
|
|
},
|
|
|
|
/**
|
|
* 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 ignorea 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
|
|
enable: function() {
|
|
if (this.enabled) return;
|
|
|
|
this.enabled=true;
|
|
this.container.removeClass("select2-container-disabled");
|
|
this.opts.element.removeAttr("disabled");
|
|
},
|
|
|
|
// abstract
|
|
disable: function() {
|
|
if (!this.enabled) return;
|
|
|
|
this.close();
|
|
|
|
this.enabled=false;
|
|
this.container.addClass("select2-container-disabled");
|
|
this.opts.element.attr("disabled", "disabled");
|
|
},
|
|
|
|
// abstract
|
|
opened: function () {
|
|
return this.container.hasClass("select2-dropdown-open");
|
|
},
|
|
|
|
// abstract
|
|
positionDropdown: function() {
|
|
var offset = this.container.offset(),
|
|
height = this.container.outerHeight(false),
|
|
width = this.container.outerWidth(false),
|
|
dropHeight = this.dropdown.outerHeight(false),
|
|
viewPortRight = $(window).scrollLeft() + $(window).width(),
|
|
viewportBottom = $(window).scrollTop() + $(window).height(),
|
|
dropTop = offset.top + height,
|
|
dropLeft = offset.left,
|
|
enoughRoomBelow = dropTop + dropHeight <= viewportBottom,
|
|
enoughRoomAbove = (offset.top - dropHeight) >= this.body().scrollTop(),
|
|
dropWidth = this.dropdown.outerWidth(false),
|
|
enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight,
|
|
aboveNow = this.dropdown.hasClass("select2-drop-above"),
|
|
bodyOffset,
|
|
above,
|
|
css;
|
|
|
|
//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;
|
|
}
|
|
|
|
// always prefer the current above/below alignment, unless there is not enough room
|
|
|
|
if (aboveNow) {
|
|
above = true;
|
|
if (!enoughRoomAbove && enoughRoomBelow) above = false;
|
|
} else {
|
|
above = false;
|
|
if (!enoughRoomBelow && enoughRoomAbove) above = true;
|
|
}
|
|
|
|
if (!enoughRoomOnRight) {
|
|
dropLeft = offset.left + width - dropWidth;
|
|
}
|
|
|
|
if (above) {
|
|
dropTop = offset.top - dropHeight;
|
|
this.container.addClass("select2-drop-above");
|
|
this.dropdown.addClass("select2-drop-above");
|
|
}
|
|
else {
|
|
this.container.removeClass("select2-drop-above");
|
|
this.dropdown.removeClass("select2-drop-above");
|
|
}
|
|
|
|
css = $.extend({
|
|
top: dropTop,
|
|
left: dropLeft,
|
|
width: width
|
|
}, evaluate(this.opts.dropdownCss));
|
|
|
|
this.dropdown.css(css);
|
|
},
|
|
|
|
// abstract
|
|
shouldOpen: function() {
|
|
var event;
|
|
|
|
if (this.opened()) return false;
|
|
|
|
event = $.Event("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;
|
|
|
|
window.setTimeout(this.bind(this.opening), 1);
|
|
|
|
return true;
|
|
},
|
|
|
|
/**
|
|
* Performs the opening of the dropdown
|
|
*/
|
|
// abstract
|
|
opening: function() {
|
|
var cid = this.containerId,
|
|
scroll = "scroll." + cid,
|
|
resize = "resize."+cid,
|
|
orient = "orientationchange."+cid,
|
|
mask;
|
|
|
|
this.clearDropdownAlignmentPreference();
|
|
|
|
this.container.addClass("select2-dropdown-open").addClass("select2-container-active");
|
|
|
|
|
|
if(this.dropdown[0] !== this.body().children().last()[0]) {
|
|
this.dropdown.detach().appendTo(this.body());
|
|
}
|
|
|
|
this.updateResults(true);
|
|
|
|
// create the dropdown mask if doesnt 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.bind("mousedown touchstart", function (e) {
|
|
var dropdown = $("#select2-drop"), self;
|
|
if (dropdown.length > 0) {
|
|
self=dropdown.data("select2");
|
|
if (self.opts.selectOnBlur) {
|
|
self.selectHighlighted({noFocus: true});
|
|
}
|
|
self.close();
|
|
}
|
|
});
|
|
}
|
|
|
|
// 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.css(_makeMaskCss());
|
|
mask.show();
|
|
this.dropdown.show();
|
|
this.positionDropdown();
|
|
|
|
this.dropdown.addClass("select2-drop-active");
|
|
this.ensureHighlightVisible();
|
|
|
|
// 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).bind(resize+" "+scroll+" "+orient, function (e) {
|
|
$("#select2-drop-mask").css(_makeMaskCss());
|
|
that.positionDropdown();
|
|
});
|
|
});
|
|
|
|
this.focusSearch();
|
|
|
|
function _makeMaskCss() {
|
|
return {
|
|
width : Math.max(document.documentElement.scrollWidth, $(window).width()),
|
|
height : Math.max(document.documentElement.scrollHeight, $(window).height())
|
|
}
|
|
}
|
|
},
|
|
|
|
// abstract
|
|
close: function () {
|
|
if (!this.opened()) return;
|
|
|
|
var cid = this.containerId,
|
|
scroll = "scroll." + cid,
|
|
resize = "resize."+cid,
|
|
orient = "orientationchange."+cid;
|
|
|
|
// unbind event listeners
|
|
this.container.parents().add(window).each(function () { $(this).unbind(scroll).unbind(resize).unbind(orient); });
|
|
|
|
this.clearDropdownAlignmentPreference();
|
|
|
|
$("#select2-drop-mask").hide();
|
|
this.dropdown.removeAttr("id"); // only the active dropdown has the select2-drop id
|
|
this.dropdown.hide();
|
|
this.container.removeClass("select2-dropdown-open");
|
|
this.results.empty();
|
|
this.clearSearch();
|
|
|
|
this.opts.element.trigger($.Event("close"));
|
|
},
|
|
|
|
// abstract
|
|
clearSearch: function () {
|
|
|
|
},
|
|
|
|
//abstract
|
|
getMaximumSelectionSize: function() {
|
|
return evaluate(this.opts.maximumSelectionSize);
|
|
},
|
|
|
|
// abstract
|
|
ensureHighlightVisible: function () {
|
|
var results = this.results, children, index, child, hb, rb, y, more;
|
|
|
|
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();
|
|
|
|
child = $(children[index]);
|
|
|
|
hb = child.offset().top + 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 = child.offset().top - 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() {
|
|
var h=this.results.find(".select2-result-selectable:not(.select2-selected):not(.select2-disabled)");
|
|
return this.results.find(".select2-result-selectable:not(.select2-selected):not(.select2-disabled)");
|
|
},
|
|
|
|
// 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.results.find(".select2-highlighted").removeClass("select2-highlighted");
|
|
|
|
choice = $(choices[index]);
|
|
choice.addClass("select2-highlighted");
|
|
|
|
this.ensureHighlightVisible();
|
|
|
|
data = choice.data("select2-data");
|
|
if (data) {
|
|
this.opts.element.trigger({ type: "highlight", val: this.id(data), choice: data });
|
|
}
|
|
},
|
|
|
|
// 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 al highlights
|
|
this.results.find(".select2-highlighted").removeClass("select2-highlighted");
|
|
}
|
|
},
|
|
|
|
// 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
|
|
offset = -1, // index of first element without data
|
|
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(self.opts.formatLoadMore(page+1));
|
|
window.setTimeout(function() { self.loadMoreIfNeeded(); }, 10);
|
|
} else {
|
|
more.remove();
|
|
}
|
|
self.positionDropdown();
|
|
self.resultsPage = page;
|
|
self.context = data.context;
|
|
})});
|
|
}
|
|
},
|
|
|
|
/**
|
|
* 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");
|
|
|
|
// prevent duplicate queries against the same term
|
|
if (initial !== true && lastTerm && equal(term, lastTerm)) return;
|
|
|
|
// if the search is currently hidden we do not alter the results
|
|
if (initial !== true && (this.showSearchInput === false || !this.opened())) {
|
|
return;
|
|
}
|
|
|
|
function postRender() {
|
|
results.scrollTop(0);
|
|
search.removeClass("select2-active");
|
|
self.positionDropdown();
|
|
}
|
|
|
|
function render(html) {
|
|
results.html(html);
|
|
postRender();
|
|
}
|
|
|
|
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'>" + opts.formatSelectionTooBig(maxSelSize) + "</li>");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (search.val().length < opts.minimumInputLength) {
|
|
if (checkFormatter(opts.formatInputTooShort, "formatInputTooShort")) {
|
|
render("<li class='select2-no-results'>" + opts.formatInputTooShort(search.val(), opts.minimumInputLength) + "</li>");
|
|
} else {
|
|
render("");
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (opts.maximumInputLength && search.val().length > opts.maximumInputLength) {
|
|
if (checkFormatter(opts.formatInputTooLong, "formatInputTooLong")) {
|
|
render("<li class='select2-no-results'>" + opts.formatInputTooLong(search.val(), opts.maximumInputLength) + "</li>");
|
|
} else {
|
|
render("");
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (opts.formatSearching && this.findHighlightableChoices().length === 0) {
|
|
render("<li class='select2-searching'>" + opts.formatSearching() + "</li>");
|
|
}
|
|
|
|
search.addClass("select2-active");
|
|
|
|
// give the tokenizer a chance to pre-process the input
|
|
input = this.tokenize();
|
|
if (input != undefined && input != null) {
|
|
search.val(input);
|
|
}
|
|
|
|
this.resultsPage = 1;
|
|
|
|
$.data(this.container, "select2-last-term", term);
|
|
|
|
opts.query({
|
|
element: opts.element,
|
|
term: search.val(),
|
|
page: this.resultsPage,
|
|
context: null,
|
|
matcher: opts.matcher,
|
|
callback: this.bind(function (data) {
|
|
var def; // default choice
|
|
|
|
// ignore a response if the select2 has been closed before it was received
|
|
if (!this.opened()) {
|
|
this.search.removeClass("select2-active");
|
|
return;
|
|
}
|
|
|
|
// save context, if any
|
|
this.context = (data.context===undefined) ? null : data.context;
|
|
// create a default choice and prepend it to the list
|
|
if (this.opts.createSearchChoice && search.val() !== "") {
|
|
def = this.opts.createSearchChoice.call(null, search.val(), data.results);
|
|
if (def !== undefined && def !== null && self.id(def) !== undefined && self.id(def) !== null) {
|
|
if ($(data.results).filter(
|
|
function () {
|
|
return equal(self.id(this), self.id(def));
|
|
}).length === 0) {
|
|
data.results.unshift(def);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (data.results.length === 0 && checkFormatter(opts.formatNoMatches, "formatNoMatches")) {
|
|
render("<li class='select2-no-results'>" + opts.formatNoMatches(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'>" + self.opts.escapeMarkup(opts.formatLoadMore(this.resultsPage)) + "</li>");
|
|
window.setTimeout(function() { self.loadMoreIfNeeded(); }, 10);
|
|
}
|
|
|
|
this.postprocessResults(data, initial);
|
|
|
|
postRender();
|
|
|
|
this.opts.element.trigger({ type: "loaded", data: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) {
|
|
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);
|
|
}
|
|
},
|
|
|
|
// abstract
|
|
getPlaceholder: function () {
|
|
return this.opts.element.attr("placeholder") ||
|
|
this.opts.element.attr("data-placeholder") || // jquery 1.4 compat
|
|
this.opts.element.data("placeholder") ||
|
|
this.opts.placeholder;
|
|
},
|
|
|
|
/**
|
|
* 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;
|
|
|
|
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) {
|
|
matches = attrs[i].replace(/\s/g, '')
|
|
.match(/width:(([-+]?([0-9]*\.)?[0-9]+)(px|em|ex|%|in|cm|mm|pt|pc))/);
|
|
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 = $(document.createElement("div")).attr({
|
|
"class": "select2-container"
|
|
}).html([
|
|
"<a href='javascript:void(0)' onclick='return false;' class='select2-choice' tabindex='-1'>",
|
|
" <span></span><abbr class='select2-search-choice-close' style='display:none;'></abbr>",
|
|
" <div><b></b></div>" ,
|
|
"</a>",
|
|
"<input class='select2-focusser select2-offscreen' type='text'/>",
|
|
"<div class='select2-drop' style='display:none'>" ,
|
|
" <div class='select2-search'>" ,
|
|
" <input type='text' autocomplete='off' class='select2-input'/>" ,
|
|
" </div>" ,
|
|
" <ul class='select2-results'>" ,
|
|
" </ul>" ,
|
|
"</div>"].join(""));
|
|
return container;
|
|
},
|
|
|
|
// single
|
|
disable: function() {
|
|
if (!this.enabled) return;
|
|
|
|
this.parent.disable.apply(this, arguments);
|
|
|
|
this.focusser.attr("disabled", "disabled");
|
|
},
|
|
|
|
// single
|
|
enable: function() {
|
|
if (this.enabled) return;
|
|
|
|
this.parent.enable.apply(this, arguments);
|
|
|
|
this.focusser.removeAttr("disabled");
|
|
},
|
|
|
|
// single
|
|
opening: function () {
|
|
this.parent.opening.apply(this, arguments);
|
|
this.focusser.attr("disabled", "disabled");
|
|
|
|
this.opts.element.trigger($.Event("open"));
|
|
},
|
|
|
|
// single
|
|
close: function () {
|
|
if (!this.opened()) return;
|
|
this.parent.close.apply(this, arguments);
|
|
this.focusser.removeAttr("disabled");
|
|
focus(this.focusser);
|
|
},
|
|
|
|
// single
|
|
focus: function () {
|
|
if (this.opened()) {
|
|
this.close();
|
|
} else {
|
|
this.focusser.removeAttr("disabled");
|
|
this.focusser.focus();
|
|
}
|
|
},
|
|
|
|
// single
|
|
isFocused: function () {
|
|
return this.container.hasClass("select2-container-active");
|
|
},
|
|
|
|
// single
|
|
cancel: function () {
|
|
this.parent.cancel.apply(this, arguments);
|
|
this.focusser.removeAttr("disabled");
|
|
this.focusser.focus();
|
|
},
|
|
|
|
// single
|
|
initContainer: function () {
|
|
|
|
var selection,
|
|
container = this.container,
|
|
dropdown = this.dropdown,
|
|
clickingInside = false;
|
|
|
|
this.showSearch(this.opts.minimumResultsForSearch >= 0);
|
|
|
|
this.selection = selection = container.find(".select2-choice");
|
|
|
|
this.focusser = container.find(".select2-focusser");
|
|
|
|
this.search.bind("keydown", this.bind(function (e) {
|
|
if (!this.enabled) 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.TAB:
|
|
case KEY.ENTER:
|
|
this.selectHighlighted();
|
|
killEvent(e);
|
|
return;
|
|
case KEY.ESC:
|
|
this.cancel(e);
|
|
killEvent(e);
|
|
return;
|
|
}
|
|
}));
|
|
|
|
this.search.bind("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() {
|
|
this.search.focus();
|
|
}), 0);
|
|
}
|
|
}));
|
|
|
|
this.focusser.bind("keydown", this.bind(function (e) {
|
|
if (!this.enabled) 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)) {
|
|
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.bind("keyup-change input", this.bind(function(e) {
|
|
if (this.opened()) return;
|
|
this.open();
|
|
if (this.showSearchInput !== false) {
|
|
this.search.val(this.focusser.val());
|
|
}
|
|
this.focusser.val("");
|
|
killEvent(e);
|
|
}));
|
|
|
|
selection.delegate("abbr", "mousedown", this.bind(function (e) {
|
|
if (!this.enabled) return;
|
|
this.clear();
|
|
killEventImmediately(e);
|
|
this.close();
|
|
this.selection.focus();
|
|
}));
|
|
|
|
selection.bind("mousedown", this.bind(function (e) {
|
|
clickingInside = true;
|
|
|
|
if (this.opened()) {
|
|
this.close();
|
|
} else if (this.enabled) {
|
|
this.open();
|
|
}
|
|
|
|
killEvent(e);
|
|
|
|
clickingInside = false;
|
|
}));
|
|
|
|
dropdown.bind("mousedown", this.bind(function() { this.search.focus(); }));
|
|
|
|
selection.bind("focus", this.bind(function(e) {
|
|
killEvent(e);
|
|
}));
|
|
|
|
this.focusser.bind("focus", this.bind(function(){
|
|
this.container.addClass("select2-container-active");
|
|
})).bind("blur", this.bind(function() {
|
|
if (!this.opened()) {
|
|
this.container.removeClass("select2-container-active");
|
|
}
|
|
}));
|
|
this.search.bind("focus", this.bind(function(){
|
|
this.container.addClass("select2-container-active");
|
|
}))
|
|
|
|
this.initContainerWidth();
|
|
this.setPlaceholder();
|
|
|
|
},
|
|
|
|
// single
|
|
clear: function(triggerChange) {
|
|
var data=this.selection.data("select2-data");
|
|
if (data) { // guard against queued quick consecutive clicks
|
|
this.opts.element.val("");
|
|
this.selection.find("span").empty();
|
|
this.selection.removeData("select2-data");
|
|
this.setPlaceholder();
|
|
|
|
if (triggerChange !== false){
|
|
this.opts.element.trigger({ type: "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.opts.element.val() === "" && this.opts.element.text() === "") {
|
|
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();
|
|
}
|
|
});
|
|
}
|
|
},
|
|
|
|
// single
|
|
prepareOpts: function () {
|
|
var opts = this.parent.prepareOpts.apply(this, arguments);
|
|
|
|
if (opts.element.get(0).tagName.toLowerCase() === "select") {
|
|
// install the selection initializer
|
|
opts.initSelection = function (element, callback) {
|
|
var selected = element.find(":selected");
|
|
// a single select box always has a value, no need to null check 'selected'
|
|
if ($.isFunction(callback))
|
|
callback({id: selected.attr("value"), text: selected.text(), element:selected});
|
|
};
|
|
} else if ("data" in opts) {
|
|
// install default initSelection when applied to hidden input and data is local
|
|
opts.initSelection = opts.initSelection || function (element, callback) {
|
|
var id = element.val();
|
|
//search in data by id, storing the actual matching item
|
|
var match = null;
|
|
opts.query({
|
|
matcher: function(term, text, el){
|
|
var is_match = equal(id, opts.id(el));
|
|
if (is_match) {
|
|
match = el;
|
|
}
|
|
return is_match;
|
|
},
|
|
callback: !$.isFunction(callback) ? $.noop : function() {
|
|
callback(match);
|
|
}
|
|
});
|
|
};
|
|
}
|
|
|
|
return opts;
|
|
},
|
|
|
|
// single
|
|
getPlaceholder: function() {
|
|
// if a placeholder is specified on a single select without the first empty option ignore it
|
|
if (this.select) {
|
|
if (this.select.find("option").first().text() !== "") {
|
|
return undefined;
|
|
}
|
|
}
|
|
|
|
return this.parent.getPlaceholder.apply(this, arguments);
|
|
},
|
|
|
|
// single
|
|
setPlaceholder: function () {
|
|
var placeholder = this.getPlaceholder();
|
|
|
|
if (this.opts.element.val() === "" && placeholder !== undefined) {
|
|
|
|
// check for a first blank option if attached to a select
|
|
if (this.select && this.select.find("option:first").text() !== "") return;
|
|
|
|
this.selection.find("span").html(this.opts.escapeMarkup(placeholder));
|
|
|
|
this.selection.addClass("select2-default");
|
|
|
|
this.selection.find("abbr").hide();
|
|
}
|
|
},
|
|
|
|
// 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) {
|
|
this.highlight(selected);
|
|
}
|
|
|
|
// hide the search box if this is the first we got the results and there are a few of them
|
|
|
|
if (initial === true) {
|
|
var min=this.opts.minimumResultsForSearch;
|
|
showSearchInput = min < 0 ? false : countResults(data.results) >= min;
|
|
this.showSearch(showSearchInput);
|
|
}
|
|
|
|
},
|
|
|
|
// single
|
|
showSearch: function(showSearchInput) {
|
|
this.showSearchInput = showSearchInput;
|
|
|
|
this.dropdown.find(".select2-search")[showSearchInput ? "removeClass" : "addClass"]("select2-search-hidden");
|
|
//add "select2-with-searchbox" to the container if search box is shown
|
|
$(this.dropdown, this.container)[showSearchInput ? "addClass" : "removeClass"]("select2-with-searchbox");
|
|
},
|
|
|
|
// single
|
|
onSelect: function (data, options) {
|
|
var old = this.opts.element.val();
|
|
|
|
this.opts.element.val(this.id(data));
|
|
this.updateSelection(data);
|
|
|
|
this.opts.element.trigger({ type: "selected", val: this.id(data), choice: data });
|
|
|
|
this.close();
|
|
|
|
if (!options || !options.noFocus)
|
|
this.selection.focus();
|
|
|
|
if (!equal(old, this.id(data))) { this.triggerChange(); }
|
|
},
|
|
|
|
// single
|
|
updateSelection: function (data) {
|
|
|
|
var container=this.selection.find("span"), formatted;
|
|
|
|
this.selection.data("select2-data", data);
|
|
|
|
container.empty();
|
|
formatted=this.opts.formatSelection(data, container);
|
|
if (formatted !== undefined) {
|
|
container.append(this.opts.escapeMarkup(formatted));
|
|
}
|
|
|
|
this.selection.removeClass("select2-default");
|
|
|
|
if (this.opts.allowClear && this.getPlaceholder() !== undefined) {
|
|
this.selection.find("abbr").show();
|
|
}
|
|
},
|
|
|
|
// single
|
|
val: function () {
|
|
var val, triggerChange = false, data = null, self = this;
|
|
|
|
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(":selected").each2(function (i, elm) {
|
|
data = {id: elm.attr("value"), text: elm.text(), element: elm.get(0)};
|
|
return false;
|
|
});
|
|
this.updateSelection(data);
|
|
this.setPlaceholder();
|
|
if (triggerChange) {
|
|
this.triggerChange();
|
|
}
|
|
} else {
|
|
if (this.opts.initSelection === undefined) {
|
|
throw new Error("cannot call val() if initSelection() is not defined");
|
|
}
|
|
// val is an id. !val is true for [undefined,null,'',0] - 0 is legal
|
|
if (!val && val !== 0) {
|
|
this.clear(triggerChange);
|
|
if (triggerChange) {
|
|
this.triggerChange();
|
|
}
|
|
return;
|
|
}
|
|
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();
|
|
}
|
|
});
|
|
}
|
|
},
|
|
|
|
// single
|
|
clearSearch: function () {
|
|
this.search.val("");
|
|
this.focusser.val("");
|
|
},
|
|
|
|
// single
|
|
data: function(value) {
|
|
var data;
|
|
|
|
if (arguments.length === 0) {
|
|
data = this.selection.data("select2-data");
|
|
if (data == undefined) data = null;
|
|
return data;
|
|
} else {
|
|
if (!value || value === "") {
|
|
this.clear();
|
|
} else {
|
|
this.opts.element.val(!value ? "" : this.id(value));
|
|
this.updateSelection(value);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
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-choice'><span>California</span><a href="javascript:void(0)" class="select2-search-choice-close"></a></li>" ,
|
|
" <li class='select2-search-field'>" ,
|
|
" <input type='text' autocomplete='off' class='select2-input'>" ,
|
|
" </li>" ,
|
|
"</ul>" ,
|
|
"<div class='select2-drop select2-drop-multi' style='display:none;'>" ,
|
|
" <ul class='select2-results'>" ,
|
|
" </ul>" ,
|
|
"</div>"].join(""));
|
|
return container;
|
|
},
|
|
|
|
// multi
|
|
prepareOpts: function () {
|
|
var opts = this.parent.prepareOpts.apply(this, arguments);
|
|
|
|
// TODO validate placeholder is a string if specified
|
|
|
|
if (opts.element.get(0).tagName.toLowerCase() === "select") {
|
|
// install sthe selection initializer
|
|
opts.initSelection = function (element, callback) {
|
|
|
|
var data = [];
|
|
|
|
element.find(":selected").each2(function (i, elm) {
|
|
data.push({id: elm.attr("value"), text: elm.text(), element: elm[0]});
|
|
});
|
|
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() {
|
|
callback(matches);
|
|
}
|
|
});
|
|
};
|
|
}
|
|
|
|
return opts;
|
|
},
|
|
|
|
// multi
|
|
initContainer: function () {
|
|
|
|
var selector = ".select2-choices", selection;
|
|
|
|
this.searchContainer = this.container.find(".select2-search-field");
|
|
this.selection = selection = this.container.find(selector);
|
|
|
|
this.search.bind("input paste", this.bind(function() {
|
|
if (!this.enabled) return;
|
|
if (!this.opened()) {
|
|
this.open();
|
|
}
|
|
}));
|
|
|
|
this.search.bind("keydown", this.bind(function (e) {
|
|
if (!this.enabled) return;
|
|
|
|
if (e.which === KEY.BACKSPACE && this.search.val() === "") {
|
|
this.close();
|
|
|
|
var choices,
|
|
selected = selection.find(".select2-search-choice-focus");
|
|
if (selected.length > 0) {
|
|
this.unselect(selected.first());
|
|
this.search.width(10);
|
|
killEvent(e);
|
|
return;
|
|
}
|
|
|
|
choices = selection.find(".select2-search-choice:not(.select2-locked)");
|
|
if (choices.length > 0) {
|
|
choices.last().addClass("select2-search-choice-focus");
|
|
}
|
|
} else {
|
|
selection.find(".select2-search-choice-focus").removeClass("select2-search-choice-focus");
|
|
}
|
|
|
|
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:
|
|
case KEY.TAB:
|
|
this.selectHighlighted();
|
|
killEvent(e);
|
|
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.bind("keyup", this.bind(this.resizeSearch));
|
|
|
|
this.search.bind("blur", this.bind(function(e) {
|
|
this.container.removeClass("select2-container-active");
|
|
this.search.removeClass("select2-focused");
|
|
if (!this.opened()) this.clearSearch();
|
|
e.stopImmediatePropagation();
|
|
}));
|
|
|
|
this.container.delegate(selector, "mousedown", this.bind(function (e) {
|
|
if (!this.enabled) return;
|
|
if ($(e.target).closest(".select2-search-choice").length > 0) {
|
|
// clicked inside a select2 search choice, do not open
|
|
return;
|
|
}
|
|
this.clearPlaceholder();
|
|
this.open();
|
|
this.focusSearch();
|
|
e.preventDefault();
|
|
}));
|
|
|
|
this.container.delegate(selector, "focus", this.bind(function () {
|
|
if (!this.enabled) return;
|
|
this.container.addClass("select2-container-active");
|
|
this.dropdown.addClass("select2-drop-active");
|
|
this.clearPlaceholder();
|
|
}));
|
|
|
|
this.initContainerWidth();
|
|
|
|
// set the placeholder if necessary
|
|
this.clearSearch();
|
|
},
|
|
|
|
// multi
|
|
enable: function() {
|
|
if (this.enabled) return;
|
|
|
|
this.parent.enable.apply(this, arguments);
|
|
|
|
this.search.removeAttr("disabled");
|
|
},
|
|
|
|
// multi
|
|
disable: function() {
|
|
if (!this.enabled) return;
|
|
|
|
this.parent.disable.apply(this, arguments);
|
|
|
|
this.search.attr("disabled", true);
|
|
},
|
|
|
|
// 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();
|
|
|
|
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(this.getMaxSearchWidth());
|
|
} 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();
|
|
|
|
this.opts.element.trigger($.Event("open"));
|
|
},
|
|
|
|
// multi
|
|
close: function () {
|
|
if (!this.opened()) return;
|
|
this.parent.close.apply(this, arguments);
|
|
},
|
|
|
|
// multi
|
|
focus: function () {
|
|
this.close();
|
|
this.search.focus();
|
|
//this.opts.element.triggerHandler("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(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) {
|
|
this.addSelectedChoice(data);
|
|
|
|
this.opts.element.trigger({ type: "selected", val: this.id(data), choice: data });
|
|
|
|
if (this.select || !this.opts.closeOnSelect) this.postprocessResults();
|
|
|
|
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);
|
|
}
|
|
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='#' onclick='return false;' 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;
|
|
|
|
formatted=this.opts.formatSelection(data, choice.find("div"));
|
|
if (formatted != undefined) {
|
|
choice.find("div").replaceWith("<div>"+this.opts.escapeMarkup(formatted)+"</div>");
|
|
}
|
|
|
|
if(enableChoice){
|
|
choice.find(".select2-search-choice-close")
|
|
.bind("mousedown", killEvent)
|
|
.bind("click dblclick", this.bind(function (e) {
|
|
if (!this.enabled) return;
|
|
|
|
$(e.target).closest(".select2-search-choice").fadeOut('fast', this.bind(function(){
|
|
this.unselect($(e.target));
|
|
this.selection.find(".select2-search-choice-focus").removeClass("select2-search-choice-focus");
|
|
this.close();
|
|
this.focusSearch();
|
|
})).dequeue();
|
|
killEvent(e);
|
|
})).bind("focus", this.bind(function () {
|
|
if (!this.enabled) 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;
|
|
}
|
|
|
|
index = indexOf(this.id(data), val);
|
|
|
|
if (index >= 0) {
|
|
val.splice(index, 1);
|
|
this.setVal(val);
|
|
if (this.select) this.postprocessResults();
|
|
}
|
|
selected.remove();
|
|
|
|
this.opts.element.trigger({ type: "removed", val: this.id(data), choice: data });
|
|
this.triggerChange({ removed: data });
|
|
},
|
|
|
|
// multi
|
|
postprocessResults: function () {
|
|
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 doesnt 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){
|
|
self.highlight(0);
|
|
}
|
|
|
|
},
|
|
|
|
// 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(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
|
|
$(val).each(function () {
|
|
if (indexOf(this, unique) < 0) unique.push(this);
|
|
});
|
|
this.opts.element.val(unique.length === 0 ? "" : unique.join(this.opts.separator));
|
|
}
|
|
},
|
|
|
|
// multi
|
|
val: function () {
|
|
var val, triggerChange = false, data = [], self=this;
|
|
|
|
if (arguments.length === 0) {
|
|
return this.getVal();
|
|
}
|
|
|
|
val = arguments[0];
|
|
|
|
if (arguments.length > 1) {
|
|
triggerChange = arguments[1];
|
|
}
|
|
|
|
// val is an id. !val is true for [undefined,null,'',0] - 0 is legal
|
|
if (!val && val !== 0) {
|
|
this.opts.element.val("");
|
|
this.updateSelection([]);
|
|
this.clearSearch();
|
|
if (triggerChange) {
|
|
this.triggerChange();
|
|
}
|
|
return;
|
|
}
|
|
|
|
// val is a list of ids
|
|
this.setVal(val);
|
|
|
|
if (this.select) {
|
|
this.opts.initSelection(this.select, this.bind(this.updateSelection));
|
|
if (triggerChange) {
|
|
this.triggerChange();
|
|
}
|
|
} else {
|
|
if (this.opts.initSelection === undefined) {
|
|
throw new Error("val() cannot be called if initSelection() is not defined");
|
|
}
|
|
|
|
this.opts.initSelection(this.opts.element, function(data){
|
|
var ids=$(data).map(self.id);
|
|
self.setVal(ids);
|
|
self.updateSelection(data);
|
|
self.clearSearch();
|
|
if (triggerChange) {
|
|
self.triggerChange();
|
|
}
|
|
});
|
|
}
|
|
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) {
|
|
var self=this, ids;
|
|
if (arguments.length === 0) {
|
|
return this.selection
|
|
.find(".select2-search-choice")
|
|
.map(function() { return $(this).data("select2-data"); })
|
|
.get();
|
|
} else {
|
|
if (!values) { values = []; }
|
|
ids = $.map(values, function(e) { return self.opts.id(e); });
|
|
this.setVal(ids);
|
|
this.updateSelection(values);
|
|
this.clearSearch();
|
|
}
|
|
}
|
|
});
|
|
|
|
$.fn.select2 = function () {
|
|
|
|
var args = Array.prototype.slice.call(arguments, 0),
|
|
opts,
|
|
select2,
|
|
value, multiple, allowedMethods = ["val", "destroy", "opened", "open", "close", "focus", "isFocused", "container", "onSortStart", "onSortEnd", "enable", "disable", "positionDropdown", "data"];
|
|
|
|
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.attr("multiple");
|
|
} else {
|
|
multiple = opts.multiple || false;
|
|
if ("tags" in opts) {opts.multiple = multiple = true;}
|
|
}
|
|
|
|
select2 = multiple ? new MultiSelect2() : new SingleSelect2();
|
|
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;
|
|
if (args[0] === "container") {
|
|
value=select2.container;
|
|
} else {
|
|
value = select2[args[0]].apply(select2, args.slice(1));
|
|
}
|
|
if (value !== undefined) {return false;}
|
|
} 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) {
|
|
return data ? data.text : undefined;
|
|
},
|
|
sortResults: function (results, container, query) {
|
|
return results;
|
|
},
|
|
formatResultCssClass: function(data) {return undefined;},
|
|
formatNoMatches: function () { return "No matches found"; },
|
|
formatInputTooShort: function (input, min) { var n = min - input.length; return "Please enter " + n + " 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.id; },
|
|
matcher: function(term, text) {
|
|
return (''+text).toUpperCase().indexOf((''+term).toUpperCase()) >= 0;
|
|
},
|
|
separator: ",",
|
|
tokenSeparators: [],
|
|
tokenizer: defaultTokenizer,
|
|
escapeMarkup: function (markup) {
|
|
var replace_map = {
|
|
'\\': '\',
|
|
'&': '&',
|
|
'<': '<',
|
|
'>': '>',
|
|
'"': '"',
|
|
"'": ''',
|
|
"/": '/'
|
|
};
|
|
|
|
return String(markup).replace(/[&<>"'\/\\]/g, function (match) {
|
|
return replace_map[match[0]];
|
|
});
|
|
},
|
|
blurOnChange: false,
|
|
selectOnBlur: false,
|
|
adaptContainerCssClass: function(c) { return c; },
|
|
adaptDropdownCssClass: function(c) { return null; }
|
|
};
|
|
|
|
// exports
|
|
window.Select2 = {
|
|
query: {
|
|
ajax: ajax,
|
|
local: local,
|
|
tags: tags
|
|
}, util: {
|
|
debounce: debounce,
|
|
markMatch: markMatch
|
|
}, "class": {
|
|
"abstract": AbstractSelect2,
|
|
"single": SingleSelect2,
|
|
"multi": MultiSelect2
|
|
}
|
|
};
|
|
|
|
}(jQuery));
|