[Tree] Begin separating out TreeView

2016-03-11 11:12:43 -08:00
parent 3b0a3733b4
commit ece8f7fded
4 changed files with 139 additions and 28 deletions
--- a/platform/commonUI/general/src/ui/TreeView.js
+++ b/platform/commonUI/general/src/ui/TreeView.js
@@ -0,0 +1,98 @@
+/*****************************************************************************
+ * Open MCT Web, Copyright (c) 2014-2015, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT Web 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 Web 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.
+ *****************************************************************************/
+/*global define*/
+
+define([
+    'angular'
+], function (angular, TreeNodeView) {
+    'use strict';
+
+    var $ = angular.element.bind(angular);
+
+    function TreeView() {
+        this.ul = $('<ul>');
+        this.ul.addClass('tree');
+        this.nodeViews = [];
+    }
+
+    TreeView.prototype.setSize = function (sz) {
+        var nodeView;
+
+        while (this.nodeViews.length < sz) {
+            nodeView = new TreeNodeView();
+            this.nodeViews.push(nodeView);
+            this.ul.append($(nodeView.elements()));
+        }
+
+        while (this.nodeViews.length > sz) {
+            nodeView = this.nodeViews.pop();
+            $(nodeView.elements()).remove();
+        }
+    };
+
+    TreeView.prototype.loadComposition = function (domainObject) {
+        var self = this;
+
+        function addNode(domainObject, index) {
+            self.nodeViews[index].model(domainObject);
+        }
+
+        function addNodes(domainObjects) {
+            if (domainObject === self.activeObject) {
+                self.setSize(domainObjects.length);
+                domainObjects.forEach(addNode);
+            }
+        }
+
+        // TODO: Add pending indicator
+        domainObject.useCapability('composition')
+            .then(addNodes);
+    };
+
+    TreeView.prototype.model = function (domainObject) {
+        if (this.unlisten) {
+            this.unlisten();
+        }
+
+        this.activeObject = domainObject;
+        this.ul.empty();
+
+        if (domainObject && domainObject.hasCapability('composition')) {
+            this.unlisten = domainObject.getCapability('mutation')
+                .listen(this.loadComposition.bind(this));
+            this.loadComposition(domainObject);
+        } else {
+            this.setSize(0);
+        }
+    };
+
+    /**
+     *
+     * @returns {HTMLElement[]}
+     */
+    TreeView.prototype.elements = function () {
+        return this.ul;
+    };
+
+
+    return TreeView;
+});