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/* <copyright>
This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved.
</copyright> */
/**
@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 <code>contentProvider</code> 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# */ {
_delegate : { value: null },
delegate : {
get: function() {
return this._delegate;
},
set: function(value) {
this._delegate = value;
}
},
rootKey : {
value: null
},
branchKey : {
value: null
},
_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;
///// Recursive function that finds all branch nodes and initializes
///// sets the tree node type to "branch" or "leaf"
function walk(node, init, depth) {
var branch = node[self.branchKey];
if(branch) {
branch.forEach(function(node) {
walk(node, init, ++depth);
});
node['treeNodeType'] = 'branch';
} else {
node['treeNodeType'] = 'leaf';
}
}
walk(this._root, 0);
}
},
/**
@private
*/
_selectedIndexes: {
value: null,
enumerable: false
},
/**
Description TODO
@type {Function}
@default null
*/
selectedIndexes: {
get: function() {
return this._selectedIndexes;
},
set: function(value) {
this._selectedIndexes = value;
}
},
branchControllers: {
value: [],
distinct: true
},
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;
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();
}
}
}
});
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