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dropdown.js
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174 lines (137 loc) · 5.68 KB
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'use strict';
angular.module('mgcrea.ngStrap.dropdown', ['mgcrea.ngStrap.tooltip'])
.provider('$dropdown', function () {
var defaults = this.defaults = {
animation: 'am-fade',
prefixClass: 'dropdown',
prefixEvent: 'dropdown',
placement: 'bottom-left',
templateUrl: 'dropdown/dropdown.tpl.html',
trigger: 'click',
container: false,
keyboard: true,
html: false,
delay: 0
};
this.$get = 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 () {
if (options.keyboard && $dropdown.$element) $dropdown.$element.on('keydown', $dropdown.$onKeyDown);
bodyEl.on('click', onBodyClick);
}, 0, false);
if (parentEl.hasClass('dropdown')) parentEl.addClass('open');
};
var hide = $dropdown.hide;
$dropdown.hide = function () {
if (!$dropdown.$isShown) return;
if (options.keyboard && $dropdown.$element) $dropdown.$element.off('keydown', $dropdown.$onKeyDown);
bodyEl.off('click', onBodyClick);
if (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 $dropdown;
}
return DropdownFactory;
};
})
.directive('bsDropdown', function ($window, $sce, $dropdown) {
return {
restrict: 'EAC',
scope: true,
compile: function (tElement, tAttrs) {
// Support for inlined template (next sibling)
// It must be fetched before compilation
if (!tAttrs.bsDropdown) {
var nextSibling = tElement[0].nextSibling;
while (nextSibling && nextSibling.nodeType !== 1) {
nextSibling = nextSibling.nextSibling;
}
if (nextSibling && nextSibling.classList.contains('dropdown-menu')) {
tAttrs.template = nextSibling.outerHTML;
tAttrs.templateUrl = undefined;
nextSibling.parentNode.removeChild(nextSibling);
}
}
return function postLink(scope, element, attr) {
// Directive options
var options = {scope: scope};
angular.forEach(['template', 'templateUrl', 'controller', 'controllerAs', 'placement', 'container', 'delay', 'trigger', 'keyboard', 'html', 'animation', 'id', 'autoClose'], function (key) {
if (angular.isDefined(tAttrs[key])) options[key] = tAttrs[key];
});
// use string regex match boolean attr falsy values, leave truthy values be
var falseValueRegExp = /^(false|0|)$/i;
angular.forEach(['html', 'container'], function (key) {
if (angular.isDefined(attr[key]) && falseValueRegExp.test(attr[key])) options[key] = false;
});
// Support scope as an object
if (attr.bsDropdown) {
scope.$watch(attr.bsDropdown, function (newValue, oldValue) {
scope.content = newValue;
}, true);
}
// Initialize dropdown
var dropdown = $dropdown(element, options);
// Visibility binding support
if (attr.bsShow) {
scope.$watch(attr.bsShow, function (newValue, oldValue) {
if (!dropdown || !angular.isDefined(newValue)) return;
if (angular.isString(newValue)) newValue = !!newValue.match(/true|,?(dropdown),?/i);
if (newValue === true) {
dropdown.show();
} else {
dropdown.hide();
}
});
}
// Garbage collection
scope.$on('$destroy', function () {
if (dropdown) dropdown.destroy();
options = null;
dropdown = null;
});
};
}
};
});