2015-07-14 13:45:54 -07:00

151 lines
4.7 KiB
JavaScript

/**
* angular-strap
* @version v2.2.1 - 2015-03-10
* @link http://mgcrea.github.io/angular-strap
* @author Olivier Louvignes (olivier@mg-crea.com)
* @license MIT License, http://www.opensource.org/licenses/MIT
*/
'use strict';
angular.module('mgcrea.ngStrap.dropdown', ['mgcrea.ngStrap.tooltip'])
.provider('$dropdown', function() {
var defaults = this.defaults = {
animation: 'am-fade',
prefixClass: 'dropdown',
prefixEvent: 'dropdown',
placement: 'bottom-left',
template: 'dropdown/dropdown.tpl.html',
trigger: 'click',
container: false,
keyboard: true,
html: false,
delay: 0
};
this.$get = ["$window", "$rootScope", "$tooltip", "$timeout", function($window, $rootScope, $tooltip, $timeout) {
var bodyEl = angular.element($window.document.body);
var matchesSelector = Element.prototype.matchesSelector || Element.prototype.webkitMatchesSelector || Element.prototype.mozMatchesSelector || Element.prototype.msMatchesSelector || Element.prototype.oMatchesSelector;
function DropdownFactory(element, config) {
var $dropdown = {};
// Common vars
var options = angular.extend({}, defaults, config);
var scope = $dropdown.$scope = options.scope && options.scope.$new() || $rootScope.$new();
$dropdown = $tooltip(element, options);
var parentEl = element.parent();
// Protected methods
$dropdown.$onKeyDown = function(evt) {
if (!/(38|40)/.test(evt.keyCode)) return;
evt.preventDefault();
evt.stopPropagation();
// Retrieve focused index
var items = angular.element($dropdown.$element[0].querySelectorAll('li:not(.divider) a'));
if(!items.length) return;
var index;
angular.forEach(items, function(el, i) {
if(matchesSelector && matchesSelector.call(el, ':focus')) index = i;
});
// Navigate with keyboard
if(evt.keyCode === 38 && index > 0) index--;
else if(evt.keyCode === 40 && index < items.length - 1) index++;
else if(angular.isUndefined(index)) index = 0;
items.eq(index)[0].focus();
};
// Overrides
var show = $dropdown.show;
$dropdown.show = function() {
show();
// use timeout to hookup the events to prevent
// event bubbling from being processed imediately.
$timeout(function() {
options.keyboard && $dropdown.$element.on('keydown', $dropdown.$onKeyDown);
bodyEl.on('click', onBodyClick);
}, 0, false);
parentEl.hasClass('dropdown') && parentEl.addClass('open');
};
var hide = $dropdown.hide;
$dropdown.hide = function() {
if(!$dropdown.$isShown) return;
options.keyboard && $dropdown.$element.off('keydown', $dropdown.$onKeyDown);
bodyEl.off('click', onBodyClick);
parentEl.hasClass('dropdown') && parentEl.removeClass('open');
hide();
};
var destroy = $dropdown.destroy;
$dropdown.destroy = function() {
bodyEl.off('click', onBodyClick);
destroy();
};
// Private functions
function onBodyClick(evt) {
if(evt.target === element[0]) return;
return evt.target !== element[0] && $dropdown.hide();
}
return $dropdown;
}
return DropdownFactory;
}];
})
.directive('bsDropdown', ["$window", "$sce", "$dropdown", function($window, $sce, $dropdown) {
return {
restrict: 'EAC',
scope: true,
link: function postLink(scope, element, attr, transclusion) {
// Directive options
var options = {scope: scope};
angular.forEach(['placement', 'container', 'delay', 'trigger', 'keyboard', 'html', 'animation', 'template', 'id'], function(key) {
if(angular.isDefined(attr[key])) options[key] = attr[key];
});
// Support scope as an object
attr.bsDropdown && scope.$watch(attr.bsDropdown, function(newValue, oldValue) {
scope.content = newValue;
}, true);
// Visibility binding support
attr.bsShow && scope.$watch(attr.bsShow, function(newValue, oldValue) {
if(!dropdown || !angular.isDefined(newValue)) return;
if(angular.isString(newValue)) newValue = !!newValue.match(/true|,?(dropdown),?/i);
newValue === true ? dropdown.show() : dropdown.hide();
});
// Initialize dropdown
var dropdown = $dropdown(element, options);
// Garbage collection
scope.$on('$destroy', function() {
if (dropdown) dropdown.destroy();
options = null;
dropdown = null;
});
}
};
}]);