From cbcc9dcadaf62b3b0aef380f022bf6c365785627 Mon Sep 17 00:00:00 2001 From: Eric Guzman Date: Thu, 2 Feb 2012 10:36:05 -0800 Subject: Tree Controller - Initial add --- js/controllers/tree-controller.js | 219 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 219 insertions(+) create mode 100644 js/controllers/tree-controller.js (limited to 'js/controllers') diff --git a/js/controllers/tree-controller.js b/js/controllers/tree-controller.js new file mode 100644 index 00000000..45e4c4ba --- /dev/null +++ b/js/controllers/tree-controller.js @@ -0,0 +1,219 @@ +/* + This file contains proprietary software owned by Motorola Mobility, Inc.
+ No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.
+ (c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved. +
*/ +/** + @module montage/ui/controller/tree-controller + @requires montage/core/core + @requires montage/ui/controller/object-controller + @requires montage/core/event/mutable-event + */ +var Montage = require("montage").Montage, + ObjectController = require("montage/ui/controller/object-controller").ObjectController, + ArrayController = require("montage/ui/controller/array-controller").ArrayController, + MutableEvent = require("montage/core/event/mutable-event").MutableEvent; +/** + TODO: Write description like the array controllers: The ArrayController helps with organizing a hierarchical + collection of objects, and managing user selection within that collection. + You can assign a TreeController instance as the contentProvider property for a TreeView object. + @class module:montage/ui/controller/tree-controller.TreeController + @classdesc + @extends module:montage/ui/controller/object-controller.ObjectController +*/ +var TreeController = exports.TreeController = Montage.create(ObjectController, /** @lends module:montage/ui/controller/tree-controller.TreeController# */ { + + rootKey : { + value: null + }, + + branchKey : { + value: 'children' + }, + + _root : { + value : null + }, + root : { + get: function() { + return this._root; + }, + set: function(value) { + this._root = value; + + this.initArrayControllers(); + } + }, + + rootController: { + value: null + }, + + initArrayControllers : { + value: function() { + var self = this; + + ///// Declare function to initialize controller for each node + ///// that is a branch + + function initController(array, depth) { + var controller = Montage.create(ArrayController, { + content : { value: array }, + delegate : { value: self }, + isSelectionEnabled : { value: true }}); + + if(depth === 0) { + self.rootController = controller; + } + + self.branchControllers.push({ + depth : depth, + controller : controller + + }); + } + + ///// Recursive function that finds all branch nodes and initializes + ///// an array controller + + function walk(node, init, depth) { + var children = node[self.branchKey]; + + if(children) { + //init(children, depth); + + children.forEach(function(child) { + walk(child, init, ++depth); + }); + + node['treeNodeType'] = 'branch'; + } else { + node['treeNodeType'] = 'leaf'; + } + } + + walk(this._root, initController, 0); + + } + }, + + /** + @private + */ + _selectedIndexes: { + value: null, + enumerable: false + }, + + /** + Description TODO + @type {Function} + @default null + */ + selectedIndexes: { + get: function() { + + }, + set: function(value) { + + } + }, + + lazyLoad : { + value: false + }, + + branchControllers: { + value: [] + }, + + addBranchController : { + value: function(controller) { + if(this.delegate) { + controller.delegate = this.delegate; + } + + this.branchControllers.push(controller); + } + }, + + /** + @private + */ + _content: { + enumerable: false, + value: null + }, + /** + The content managed by the TreeController. + @type {Function} + @default {String} null + */ + content: { + get: function() { + return this._content; + }, + set: function(value) { + if (this._content === value) { + return; + } + + this._content = value; + + //TODO for right now assume that any content change invalidates the selection completely; we'll need to address this of course + this.selectedObjects = null; + + if (this.rootKey) { + if (value[this.rootKey]) { + this.root = value[this.rootKey]; + } else { + console.log('No root key found in content data'); + } + } else { + this.root = value; + } + + + } + }, + + addObjects : { + value: function() { + + var objects = Array.prototype.slice.call(arguments), + i, + objectCount = objects.length, + selectedContentIndexes, firstIndex; + + for (i = 0; i < objectCount; i++) { + this.content.push(objects[i]); + } + + if (this.selectObjectsOnAddition) { + selectedContentIndexes = []; + firstIndex = this.content.length-objectCount; + for (i = 0; i < objectCount; i++) { + selectedContentIndexes[i] = firstIndex++; + } + this.selectedContentIndexes = selectedContentIndexes; + this.selectedObjects = objects; + } + + if (this.clearFilterFunctionOnAddition) { + this.filterFunction = null; + } + + if (this.automaticallyOrganizeObjects) { + this.organizeObjects(); + } + + } + }, + + insertChildBefore : { value : function() {} }, + + insertChildAfter : { value : function() {} } + + + +}); -- cgit v1.2.3