2017-04-05 14:52:46 -07:00

82 lines
3.0 KiB
JavaScript

/*****************************************************************************
* Open MCT, Copyright (c) 2014-2017, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* Open MCT is licensed under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* Open MCT includes source code licensed under additional open source
* licenses. See the Open Source Licenses file (LICENSES.md) included with
* this source code distribution or the Licensing information page available
* at runtime from the About dialog for additional information.
*****************************************************************************/
define([
'angular',
'../ui/TreeView'
], function (angular, TreeView) {
function MCTTree(gestureService) {
function link(scope, element) {
if (!scope.allowSelection) {
scope.allowSelection = function () {
return true;
};
}
if (!scope.onSelection) {
scope.onSelection = function () {};
}
var currentSelection = scope.selectedObject;
var treeView = new TreeView(gestureService);
function setSelection(domainObject, event) {
if (currentSelection === domainObject) {
return;
}
if (!scope.allowSelection(domainObject)) {
treeView.value(currentSelection);
return;
}
currentSelection = domainObject;
scope.onSelection(domainObject);
scope.selectedObject = domainObject;
if (event && event instanceof MouseEvent) {
scope.$apply();
}
}
var unobserve = treeView.observe(setSelection);
element.append(angular.element(treeView.elements()));
scope.$watch('selectedObject', function (object) {
currentSelection = object;
treeView.value(object);
});
scope.$watch('rootObject', treeView.model.bind(treeView));
scope.$on('$destroy', unobserve);
}
return {
restrict: "E",
link: link,
scope: {
rootObject: "=",
selectedObject: "=",
onSelection: "=?",
allowSelection: "=?"
}
};
}
return MCTTree;
});