]>
Commit | Line | Data |
---|---|---|
a3e2f1a9 | 1 | define(["dojo/_base/declare", "dijit/Tree", "lib/_CheckBoxTreeNode" ], function (declare) { |
d39a2f80 AD |
2 | |
3 | return declare( "lib.CheckBoxTree", dijit.Tree, | |
4 | { | |
5 | ||
6 | onNodeChecked: function(/*dojo.data.Item*/ storeItem, /*treeNode*/ treeNode) { | |
7 | // summary: | |
8 | // Callback when a checkbox tree node is checked | |
9 | // tags: | |
10 | // callback | |
11 | }, | |
12 | ||
13 | onNodeUnchecked: function(/*dojo.data.Item*/ storeItem, /* treeNode */ treeNode) { | |
14 | // summary: | |
15 | // Callback when a checkbox tree node is unchecked | |
16 | // tags: | |
17 | // callback | |
18 | }, | |
19 | ||
20 | _onClick: function(/*TreeNode*/ nodeWidget, /*Event*/ e) { | |
21 | // summary: | |
22 | // Translates click events into commands for the controller to process | |
23 | // description: | |
24 | // the _onClick function is called whenever a 'click' is detected. This | |
25 | // instance of _onClick only handles the click events associated with | |
26 | // the checkbox whos DOM name is INPUT. | |
27 | // | |
28 | var domElement = e.target; | |
29 | ||
30 | // Only handle checkbox clicks here | |
31 | if(domElement.type != 'checkbox') { | |
32 | return this.inherited( arguments ); | |
33 | } | |
1985a5e0 | 34 | |
d39a2f80 AD |
35 | this._publish("execute", { item: nodeWidget.item, node: nodeWidget} ); |
36 | // Go tell the model to update the checkbox state | |
1985a5e0 | 37 | |
d39a2f80 AD |
38 | this.model.updateCheckbox( nodeWidget.item, nodeWidget._checkbox.checked ); |
39 | // Generate some additional events | |
40 | //this.onClick( nodeWidget.item, nodeWidget, e ); | |
41 | if(nodeWidget._checkbox.checked) { | |
42 | this.onNodeChecked( nodeWidget.item, nodeWidget); | |
43 | } else { | |
44 | this.onNodeUnchecked( nodeWidget.item, nodeWidget); | |
45 | } | |
46 | this.focusNode(nodeWidget); | |
47 | }, | |
48 | ||
49 | _onCheckboxChange: function(/*dojo.data.Item*/ storeItem ) { | |
50 | // summary: | |
51 | // Processes notification of a change to a checkbox state (triggered by the model). | |
52 | // description: | |
53 | // Whenever the model changes the state of a checkbox in the dojo.data.store it will | |
54 | // trigger the 'onCheckboxChange' event allowing the Tree to make the same changes | |
55 | // on the tree Node. There are several conditions why a tree node or checkbox does not | |
56 | // exists: | |
57 | // a) The node has not been created yet (the user has not expanded the tree node yet). | |
58 | // b) The checkbox may be null if condition (a) exists or no 'checkbox' attribute was | |
59 | // specified for the associated dojo.data.item and the attribute 'checkboxAll' is | |
60 | // set to false. | |
61 | // tags: | |
62 | // callback | |
63 | var model = this.model, | |
64 | identity = model.getIdentity(storeItem), | |
65 | nodes = this._itemNodesMap[identity]; | |
66 | ||
67 | // As of dijit.Tree 1.4 multiple references (parents) are supported, therefore we may have | |
68 | // to update multiple nodes which are all associated with the same dojo.data.item. | |
69 | if( nodes ) { | |
70 | dojo.forEach( nodes, function(node) { | |
71 | if( node._checkbox != null ) { | |
72 | node._checkbox.attr('checked', this.model.getCheckboxState( storeItem )); | |
73 | } | |
74 | }, this ); | |
1985a5e0 | 75 | } |
d39a2f80 AD |
76 | }, |
77 | ||
78 | postCreate: function() { | |
79 | // summary: | |
80 | // Handle any specifics related to the tree and model after the instanciation of the Tree. | |
81 | // description: | |
82 | // Validate if we have a 'write' store first. Subscribe to the 'onCheckboxChange' event | |
83 | // (triggered by the model) and kickoff the initial checkbox data validation. | |
84 | // | |
85 | var store = this.model.store; | |
86 | if(!store.getFeatures()['dojo.data.api.Write']){ | |
87 | throw new Error("lib.CheckboxTree: store must support dojo.data.Write"); | |
88 | } | |
89 | this.connect(this.model, "onCheckboxChange", "_onCheckboxChange"); | |
90 | this.model.validateData( this.model.root, this.model ); | |
91 | this.inherited(arguments); | |
92 | }, | |
93 | ||
94 | _createTreeNode: function( args ) { | |
95 | // summary: | |
96 | // Create a new CheckboxTreeNode instance. | |
97 | // description: | |
98 | // Create a new CheckboxTreeNode instance. | |
99 | return new lib._CheckBoxTreeNode(args); | |
100 | } | |
101 | ||
102 | }); | |
1985a5e0 AD |
103 | |
104 | }); | |
d39a2f80 | 105 |