74 lines
2.4 KiB
JavaScript
74 lines
2.4 KiB
JavaScript
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* A directive which allows elements to be manually focused / blurred.
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*/
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angular.module('element').directive('guacFocus', ['$parse', function guacFocus($parse) {
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return {
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restrict: 'A',
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link: function linkGuacFocus($scope, $element, $attrs) {
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/**
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* Whether the element associated with this directive should be
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* focussed.
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*
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* @type Boolean
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*/
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var guacFocus = $parse($attrs.guacFocus);
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/**
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* The element which will be focused / blurred.
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*
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* @type Element
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*/
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var element = $element[0];
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// Set/unset focus depending on value of guacFocus
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$scope.$watch(guacFocus, function updateFocus(value) {
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$scope.$evalAsync(function updateFocusAsync() {
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if (value)
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element.focus();
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else
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element.blur();
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});
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});
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// Set focus flag when focus is received
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element.addEventListener('focus', function focusReceived() {
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$scope.$evalAsync(function setGuacFocusAsync() {
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guacFocus.assign($scope, true);
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});
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});
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// Unset focus flag when focus is lost
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element.addEventListener('blur', function focusLost() {
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$scope.$evalAsync(function unsetGuacFocusAsync() {
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guacFocus.assign($scope, false);
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});
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});
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} // end guacFocus link function
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};
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}]);
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