ngTree

Module to use tree.js in your AngularJS applications.

Installation

It is available with bower:

bower install ng-tree

Then add the retrieved files to your HTML layout:

<script type="text/javascript" src="/path/to/bower_components/tree.js/tree.min.js"></script>
<script type="text/javascript" src="/path/to/bower_components/ng-tree/ng-tree.min.js"></script>

You can also use it with RequireJS as an AMD module.

Then add ngTree as dependency for your AngularJS application:

var app = angular.module('YOUR_APP', ['ngTree']);

Configuration

To build a tree the module provides a service $treeFactory. Just call it to build a tree from raw data:

var tree = $treeFactory({
    children: [
        {
            name: 'dupuis',
            children: [
                {
                    name: 'prunelle',
                    children: [
                        {
                            name: 'lebrac',
                            job: 'designer'
                        },
                        {
                            name: 'lagaffe',
                            firstname: 'gaston',
                            job: 'sleeper'
                        },
                    ]
                }
            ]
        }
    ]
});

The tree is a hookable tree already configured to use $q as promises library.

$treeFactory get tree.js from window.Tree if you include it in others ways (with RequireJS for example), you can use anywhere $treeFactory.factory(YOUR TREE.JS) to configure it.

Usage

See tree.js for detailed documentation. The generated trees by $treeFactory work the same way with some improvements:

• When you register a hook listener you can use dependency injection like below:

 
tree.registerListener(tree.HOOK_PRE_APPEND, function(next, newNode) {
    // This is the classic way, it still works!
});
 
// You can also do:
 
tree.registerListener(tree.HOOK_PRE_APPEND, ['myService', function(myService) {
    return function(next, newNode) {
        // This is still our listener but you can now deal with `myService`
    };
}]);

• Each tree and its children are decorated with a collapsed attribute and a toggle method which inverts attributes:

tree.attr('collapsed'); // true
tree.toggle('collapsed');
tree.attr('collapsed'); // false

---

Display the tree

To display the tree you have to use the tree-view directive:

<tree-view tree="YOUR_TREE"></tree-view>

Handle a click on a tree/sub-tree

When a click is triggered on a tree or a sub-tree, the default behaviour is to toggle the collapsed attribute on it. You can add your own click handler by adding the attribute tree-click:

<tree-view tree="YOUR_TREE" tree-click="yourHandler(tree)"></tree-view>

You can pass to your handler two existing arguments:

• $event: the click event
• tree: the tree on which the click was triggered

The handler can return both a classic value (or nothing) and a promise. If it returns a promise, the toggle action will occur only if the promise is resolved.

Customize templates

You can have a full access to the templates used by tree-view and tree-child-view in order to edit them with the service $treeTemplateFactory:

$treeTemplateFactory.tree() // returns tree-view template
$treeTemplateFactory.tree(NEW_TEMPLATE) // edit tree-view template
 
$treeTemplateFactory.treeChild() // returns tree-child-view template
$treeTemplateFactory.treeChild(NEW_TEMPLATE) // edit tree-child-view template

tree-view will represent the ul element and tree-child-view the li element.

Build

To rebuild the minified JavaScript you must run: make build.

Tests

Install dependencies and run the unit tests:

make install
make test-spec

Contributing

All contributions are welcome and must pass the tests. If you add a new feature, please write tests for it.

License

This application is available under the MIT License, courtesy of marmelab.