/**
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* angular-strap
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* @version v2.0.3 - 2014-05-30
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* @link http://mgcrea.github.io/angular-strap
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* @author Olivier Louvignes (olivier@mg-crea.com)
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* @license MIT License, http://www.opensource.org/licenses/MIT
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*/
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'use strict';
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angular.module('mgcrea.ngStrap.select', [
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'mgcrea.ngStrap.tooltip',
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'mgcrea.ngStrap.helpers.parseOptions'
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]).provider('$select', function () {
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var defaults = this.defaults = {
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animation: 'am-fade',
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prefixClass: 'select',
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placement: 'bottom-left',
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template: 'select/select.tpl.html',
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trigger: 'focus',
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container: false,
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keyboard: true,
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html: false,
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delay: 0,
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multiple: false,
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sort: true,
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caretHtml: ' <span class="caret"></span>',
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placeholder: 'Choose among the following...',
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maxLength: 3,
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maxLengthHtml: 'selected',
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iconCheckmark: 'glyphicon glyphicon-ok'
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};
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this.$get = [
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'$window',
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'$document',
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'$rootScope',
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'$tooltip',
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function ($window, $document, $rootScope, $tooltip) {
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var bodyEl = angular.element($window.document.body);
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var isTouch = 'createTouch' in $window.document;
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function SelectFactory(element, controller, config) {
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var $select = {};
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// Common vars
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var options = angular.extend({}, defaults, config);
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$select = $tooltip(element, options);
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var scope = $select.$scope;
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scope.$matches = [];
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scope.$activeIndex = 0;
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scope.$isMultiple = options.multiple;
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scope.$iconCheckmark = options.iconCheckmark;
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scope.$activate = function (index) {
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scope.$$postDigest(function () {
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$select.activate(index);
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});
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};
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scope.$select = function (index, evt) {
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scope.$$postDigest(function () {
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$select.select(index);
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});
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};
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scope.$isVisible = function () {
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return $select.$isVisible();
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};
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scope.$isActive = function (index) {
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return $select.$isActive(index);
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};
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// Public methods
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$select.update = function (matches) {
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scope.$matches = matches;
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$select.$updateActiveIndex();
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};
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$select.activate = function (index) {
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if (options.multiple) {
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scope.$activeIndex.sort();
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$select.$isActive(index) ? scope.$activeIndex.splice(scope.$activeIndex.indexOf(index), 1) : scope.$activeIndex.push(index);
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if (options.sort)
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scope.$activeIndex.sort();
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} else {
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scope.$activeIndex = index;
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}
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return scope.$activeIndex;
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};
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$select.select = function (index) {
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var value = scope.$matches[index].value;
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scope.$apply(function () {
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$select.activate(index);
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if (options.multiple) {
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controller.$setViewValue(scope.$activeIndex.map(function (index) {
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return scope.$matches[index].value;
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}));
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} else {
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controller.$setViewValue(value);
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// Hide if single select
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$select.hide();
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}
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});
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// Emit event
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scope.$emit('$select.select', value, index);
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};
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// Protected methods
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$select.$updateActiveIndex = function () {
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if (controller.$modelValue && scope.$matches.length) {
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if (options.multiple && angular.isArray(controller.$modelValue)) {
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scope.$activeIndex = controller.$modelValue.map(function (value) {
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return $select.$getIndex(value);
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});
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} else {
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scope.$activeIndex = $select.$getIndex(controller.$modelValue);
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}
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} else if (scope.$activeIndex >= scope.$matches.length) {
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scope.$activeIndex = options.multiple ? [] : 0;
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}
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};
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$select.$isVisible = function () {
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if (!options.minLength || !controller) {
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return scope.$matches.length;
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}
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// minLength support
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return scope.$matches.length && controller.$viewValue.length >= options.minLength;
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};
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$select.$isActive = function (index) {
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if (options.multiple) {
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return scope.$activeIndex.indexOf(index) !== -1;
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} else {
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return scope.$activeIndex === index;
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}
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};
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$select.$getIndex = function (value) {
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var l = scope.$matches.length, i = l;
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if (!l)
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return;
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for (i = l; i--;) {
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if (scope.$matches[i].value === value)
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break;
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}
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if (i < 0)
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return;
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return i;
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};
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$select.$onMouseDown = function (evt) {
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// Prevent blur on mousedown on .dropdown-menu
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evt.preventDefault();
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evt.stopPropagation();
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// Emulate click for mobile devices
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if (isTouch) {
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var targetEl = angular.element(evt.target);
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targetEl.triggerHandler('click');
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}
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};
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$select.$onKeyDown = function (evt) {
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if (!/(9|13|38|40)/.test(evt.keyCode))
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return;
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evt.preventDefault();
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evt.stopPropagation();
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// Select with enter
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if (!options.multiple && (evt.keyCode === 13 || evt.keyCode === 9)) {
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return $select.select(scope.$activeIndex);
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}
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// Navigate with keyboard
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if (evt.keyCode === 38 && scope.$activeIndex > 0)
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scope.$activeIndex--;
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else if (evt.keyCode === 40 && scope.$activeIndex < scope.$matches.length - 1)
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scope.$activeIndex++;
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else if (angular.isUndefined(scope.$activeIndex))
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scope.$activeIndex = 0;
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scope.$digest();
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};
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// Overrides
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var _show = $select.show;
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$select.show = function () {
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_show();
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if (options.multiple) {
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$select.$element.addClass('select-multiple');
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}
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setTimeout(function () {
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$select.$element.on(isTouch ? 'touchstart' : 'mousedown', $select.$onMouseDown);
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if (options.keyboard) {
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element.on('keydown', $select.$onKeyDown);
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}
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});
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};
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var _hide = $select.hide;
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$select.hide = function () {
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$select.$element.off(isTouch ? 'touchstart' : 'mousedown', $select.$onMouseDown);
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if (options.keyboard) {
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element.off('keydown', $select.$onKeyDown);
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}
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_hide(true);
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};
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return $select;
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}
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SelectFactory.defaults = defaults;
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return SelectFactory;
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}
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];
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}).directive('bsSelect', [
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'$window',
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'$parse',
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'$q',
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'$select',
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'$parseOptions',
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function ($window, $parse, $q, $select, $parseOptions) {
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var defaults = $select.defaults;
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return {
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restrict: 'EAC',
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require: 'ngModel',
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link: function postLink(scope, element, attr, controller) {
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// Directive options
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var options = { scope: scope };
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angular.forEach([
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'placement',
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'container',
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'delay',
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'trigger',
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'keyboard',
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'html',
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'animation',
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'template',
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'placeholder',
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'multiple',
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'maxLength',
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'maxLengthHtml'
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], function (key) {
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if (angular.isDefined(attr[key]))
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options[key] = attr[key];
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});
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// Add support for select markup
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if (element[0].nodeName.toLowerCase() === 'select') {
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var inputEl = element;
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inputEl.css('display', 'none');
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element = angular.element('<button type="button" class="btn btn-default"></button>');
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inputEl.after(element);
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}
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// Build proper ngOptions
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var parsedOptions = $parseOptions(attr.ngOptions);
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// Initialize select
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var select = $select(element, controller, options);
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// Watch ngOptions values before filtering for changes
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var watchedOptions = parsedOptions.$match[7].replace(/\|.+/, '').trim();
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scope.$watch(watchedOptions, function (newValue, oldValue) {
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// console.warn('scope.$watch(%s)', watchedOptions, newValue, oldValue);
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parsedOptions.valuesFn(scope, controller).then(function (values) {
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select.update(values);
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controller.$render();
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});
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}, true);
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// Watch model for changes
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scope.$watch(attr.ngModel, function (newValue, oldValue) {
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// console.warn('scope.$watch(%s)', attr.ngModel, newValue, oldValue);
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select.$updateActiveIndex();
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controller.$render();
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}, true);
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// Model rendering in view
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controller.$render = function () {
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// console.warn('$render', element.attr('ng-model'), 'controller.$modelValue', typeof controller.$modelValue, controller.$modelValue, 'controller.$viewValue', typeof controller.$viewValue, controller.$viewValue);
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var selected, index;
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if (options.multiple && angular.isArray(controller.$modelValue)) {
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selected = controller.$modelValue.map(function (value) {
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index = select.$getIndex(value);
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return angular.isDefined(index) ? select.$scope.$matches[index].label : false;
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}).filter(angular.isDefined);
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if (selected.length > (options.maxLength || defaults.maxLength)) {
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selected = selected.length + ' ' + (options.maxLengthHtml || defaults.maxLengthHtml);
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} else {
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selected = selected.join(', ');
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}
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} else {
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index = select.$getIndex(controller.$modelValue);
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selected = angular.isDefined(index) ? select.$scope.$matches[index].label : false;
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}
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element.html((selected ? selected : attr.placeholder || defaults.placeholder) + defaults.caretHtml);
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};
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// Garbage collection
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scope.$on('$destroy', function () {
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select.destroy();
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options = null;
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select = null;
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});
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}
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};
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}
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]);
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