src/select/select.js
'use strict';
angular.module('mgcrea.ngStrap.select', ['mgcrea.ngStrap.tooltip', 'mgcrea.ngStrap.helpers.parseOptions'])
.provider('$select', function () {
var defaults = this.defaults = {
animation: 'am-fade',
prefixClass: 'select',
prefixEvent: '$select',
placement: 'bottom-left',
templateUrl: 'select/select.tpl.html',
trigger: 'focus',
container: false,
keyboard: true,
html: false,
delay: 0,
multiple: false,
allNoneButtons: false,
sort: true,
caretHtml: ' <span class="caret"></span>',
placeholder: 'Choose among the following...',
allText: 'All',
noneText: 'None',
maxLength: 3,
maxLengthHtml: 'selected',
iconCheckmark: 'glyphicon glyphicon-ok',
toggle: false
};
this.$get = function ($window, $document, $rootScope, $tooltip, $timeout) {
// var bodyEl = angular.element($window.document.body);
var isNative = /(ip[ao]d|iphone|android)/ig.test($window.navigator.userAgent);
var isTouch = ('createTouch' in $window.document) && isNative;
function SelectFactory (element, controller, config) {
var $select = {};
// Common vars
var options = angular.extend({}, defaults, config);
$select = $tooltip(element, options);
var scope = $select.$scope;
scope.$matches = [];
if (options.multiple) {
scope.$activeIndex = [];
} else {
scope.$activeIndex = -1;
}
scope.$isMultiple = options.multiple;
scope.$showAllNoneButtons = options.allNoneButtons && options.multiple;
scope.$iconCheckmark = options.iconCheckmark;
scope.$allText = options.allText;
scope.$noneText = options.noneText;
scope.$activate = function (index) {
scope.$$postDigest(function () {
$select.activate(index);
});
};
scope.$select = function (index, evt) {
scope.$$postDigest(function () {
$select.select(index);
});
};
scope.$isVisible = function () {
return $select.$isVisible();
};
scope.$isActive = function (index) {
return $select.$isActive(index);
};
scope.$selectAll = function () {
for (var i = 0; i < scope.$matches.length; i++) {
if (!scope.$isActive(i)) {
scope.$select(i);
}
}
};
scope.$selectNone = function () {
for (var i = 0; i < scope.$matches.length; i++) {
if (scope.$isActive(i)) {
scope.$select(i);
}
}
};
// Public methods
$select.update = function (matches) {
scope.$matches = matches;
$select.$updateActiveIndex();
};
$select.activate = function (index) {
if (options.multiple) {
if ($select.$isActive(index)) {
scope.$activeIndex.splice(scope.$activeIndex.indexOf(index), 1);
} else {
scope.$activeIndex.push(index);
}
if (options.sort) scope.$activeIndex.sort(function (a, b) { return a - b; }); // use numeric sort instead of default sort
} else {
scope.$activeIndex = index;
}
return scope.$activeIndex;
};
$select.select = function (index) {
if (angular.isUndefined(index) || index < 0 || index >= scope.$matches.length) { return; }
var value = scope.$matches[index].value;
scope.$apply(function () {
$select.activate(index);
if (options.multiple) {
controller.$setViewValue(scope.$activeIndex.map(function (index) {
if (angular.isUndefined(scope.$matches[index])) {
return null;
}
return scope.$matches[index].value;
}));
} else {
if (options.toggle) {
controller.$setViewValue((value === controller.$modelValue) ? undefined : value);
} else {
controller.$setViewValue(value);
}
// Hide if single select
$select.hide();
}
});
// Emit event
scope.$emit(options.prefixEvent + '.select', value, index, $select);
if (angular.isDefined(options.onSelect) && angular.isFunction(options.onSelect)) {
options.onSelect(value, index, $select);
}
};
// Protected methods
$select.$updateActiveIndex = function () {
if (options.multiple) {
if (angular.isArray(controller.$modelValue)) {
scope.$activeIndex = controller.$modelValue.map(function (value) {
return $select.$getIndex(value);
});
} else {
scope.$activeIndex = [];
}
} else {
if (angular.isDefined(controller.$modelValue) && scope.$matches.length) {
scope.$activeIndex = $select.$getIndex(controller.$modelValue);
} else {
scope.$activeIndex = -1;
}
}
};
$select.$isVisible = function () {
if (!options.minLength || !controller) {
return scope.$matches.length;
}
// minLength support
return scope.$matches.length && controller.$viewValue.length >= options.minLength;
};
$select.$isActive = function (index) {
if (options.multiple) {
return scope.$activeIndex.indexOf(index) !== -1;
}
return scope.$activeIndex === index;
};
$select.$getIndex = function (value) {
var index;
for (index = scope.$matches.length; index--;) {
if (angular.equals(scope.$matches[index].value, value)) break;
}
return index;
};
$select.$onMouseDown = function (evt) {
// Prevent blur on mousedown on .dropdown-menu
evt.preventDefault();
evt.stopPropagation();
// Emulate click for mobile devices
if (isTouch) {
var targetEl = angular.element(evt.target);
var anchor;
if (evt.target.nodeName !== 'A') {
var anchorCandidate = targetEl.parent();
while (!anchor && anchorCandidate.length > 0) {
if (anchorCandidate[0].nodeName === 'A') {
anchor = anchorCandidate;
}
anchorCandidate = anchorCandidate.parent();
}
}
if (anchor) {
angular.element(anchor).triggerHandler('click');
} else {
targetEl.triggerHandler('click');
}
}
};
$select.$onKeyDown = function (evt) {
if (!/(9|13|38|40)/.test(evt.keyCode)) return;
// Let tab propagate
if (evt.keyCode !== 9) {
evt.preventDefault();
evt.stopPropagation();
}
// release focus on tab
if (options.multiple && evt.keyCode === 9) {
return $select.hide();
}
// Select with enter
if (!options.multiple && (evt.keyCode === 13 || evt.keyCode === 9)) {
return $select.select(scope.$activeIndex);
}
if (!options.multiple) {
// Navigate with keyboard
if (evt.keyCode === 38 && scope.$activeIndex > 0) scope.$activeIndex--;
else if (evt.keyCode === 38 && scope.$activeIndex < 0) scope.$activeIndex = scope.$matches.length - 1;
else if (evt.keyCode === 40 && scope.$activeIndex < scope.$matches.length - 1) scope.$activeIndex++;
else if (angular.isUndefined(scope.$activeIndex)) scope.$activeIndex = 0;
scope.$digest();
}
};
$select.$isIE = function () {
var ua = $window.navigator.userAgent;
return ua.indexOf('MSIE ') > 0 || ua.indexOf('Trident/') > 0 || ua.indexOf('Edge/') > 0;
};
$select.$selectScrollFix = function (e) {
if ($document[0].activeElement.tagName === 'UL') {
e.preventDefault();
e.stopImmediatePropagation();
e.target.focus();
}
};
// Overrides
var _show = $select.show;
$select.show = function () {
_show();
if (options.multiple) {
$select.$element.addClass('select-multiple');
}
// use timeout to hookup the events to prevent
// event bubbling from being processed imediately.
$timeout(function () {
$select.$element.on(isTouch ? 'touchstart' : 'mousedown', $select.$onMouseDown);
if (options.keyboard) {
element.on('keydown', $select.$onKeyDown);
}
}, 0, false);
};
var _hide = $select.hide;
$select.hide = function () {
if (!options.multiple && angular.isUndefined(controller.$modelValue)) {
scope.$activeIndex = -1;
}
$select.$element.off(isTouch ? 'touchstart' : 'mousedown', $select.$onMouseDown);
if (options.keyboard) {
element.off('keydown', $select.$onKeyDown);
}
_hide(true);
};
return $select;
}
SelectFactory.defaults = defaults;
return SelectFactory;
};
})
.directive('bsSelect', function ($window, $parse, $q, $select, $parseOptions) {
var defaults = $select.defaults;
return {
restrict: 'EAC',
require: 'ngModel',
link: function postLink (scope, element, attr, controller) {
// Directive options
var options = {scope: scope, placeholder: defaults.placeholder};
angular.forEach(['template', 'templateUrl', 'controller', 'controllerAs', 'placement', 'container', 'delay', 'trigger', 'keyboard', 'html', 'animation', 'placeholder', 'allNoneButtons', 'maxLength', 'maxLengthHtml', 'allText', 'noneText', 'iconCheckmark', 'autoClose', 'id', 'sort', 'caretHtml', 'prefixClass', 'prefixEvent', 'toggle'], function (key) {
if (angular.isDefined(attr[key])) options[key] = attr[key];
});
// use string regex match boolean attr falsy values, leave truthy values be
var falseValueRegExp = /^(false|0|)$/i;
angular.forEach(['html', 'container', 'allNoneButtons', 'sort'], function (key) {
if (angular.isDefined(attr[key]) && falseValueRegExp.test(attr[key])) {
options[key] = false;
}
});
// bind functions from the attrs to the show, hide and select events
angular.forEach(['onBeforeShow', 'onShow', 'onBeforeHide', 'onHide', 'onSelect'], function (key) {
var bsKey = 'bs' + key.charAt(0).toUpperCase() + key.slice(1);
if (angular.isDefined(attr[bsKey])) {
options[key] = scope.$eval(attr[bsKey]);
}
});
// Only parse data-multiple. Angular sets existence attributes to true (multiple/required/etc), they apply this
// to data-multiple as well for some reason, so we'll parse this ourselves and disregard multiple
var dataMultiple = element.attr('data-multiple');
if (angular.isDefined(dataMultiple)) {
if (falseValueRegExp.test(dataMultiple)) {
options.multiple = false;
} else {
options.multiple = dataMultiple;
}
}
// Add support for select markup
if (element[0].nodeName.toLowerCase() === 'select') {
var inputEl = element;
inputEl.css('display', 'none');
element = angular.element('<button type="button" class="btn btn-default" aria-haspopup="true"></button>');
inputEl.after(element);
}
// Build proper bsOptions
var parsedOptions = $parseOptions(attr.bsOptions);
// Initialize select
var select = $select(element, controller, options);
if (select.$isIE()) {
element[0].addEventListener('blur', select.$selectScrollFix);
}
// Watch bsOptions values before filtering for changes
var watchedOptions = parsedOptions.$match[7].replace(/\|.+/, '').trim();
scope.$watch(watchedOptions, function (newValue, oldValue) {
// console.warn('scope.$watch(%s)', watchedOptions, newValue, oldValue);
parsedOptions.valuesFn(scope, controller)
.then(function (values) {
select.update(values);
controller.$render();
});
}, true);
// Watch model for changes
controller.$viewChangeListeners.push(function () {
// console.warn('controller.$viewChangeListeners', 'controller.$viewValue', typeof controller.$viewValue, controller.$viewValue);
controller.$render();
});
// Model rendering in view
controller.$render = function () {
// console.warn('$render', element.attr('ng-model'), 'controller.$modelValue', typeof controller.$modelValue, controller.$modelValue, 'controller.$viewValue', typeof controller.$viewValue, controller.$viewValue);
var selected;
var index;
select.$updateActiveIndex();
if (options.multiple && angular.isArray(controller.$modelValue)) {
selected = controller.$modelValue.map(function (value) {
index = select.$getIndex(value);
return index !== -1 ? select.$scope.$matches[index].label : false;
}).filter(angular.isDefined);
if (selected.length > (options.maxLength || defaults.maxLength)) {
selected = selected.length + ' ' + (options.maxLengthHtml || defaults.maxLengthHtml);
} else {
selected = selected.join(', ');
}
} else {
index = select.$getIndex(controller.$modelValue);
selected = index !== -1 ? select.$scope.$matches[index].label : false;
}
element.html((selected || options.placeholder) + (options.caretHtml || defaults.caretHtml));
};
if (options.multiple) {
controller.$isEmpty = function (value) {
return !value || value.length === 0;
};
}
// Garbage collection
scope.$on('$destroy', function () {
if (select) select.destroy();
options = null;
select = null;
});
}
};
});