pop-nav
OVERVIEW
pop-nav
is a component for managing and rendering an HTML navigation tree. It includes support for
injecting ACL functionality to display only the certain branches of the navigation tree that the
current user role is allowed to access. For this, the pop-acl
component is used.
pop-nav
is a component of the Pop PHP Framework.
INSTALL
Install pop-nav
using Composer.
composer require popphp/pop-nav
BASIC USAGE
A basic example
First, you can define the navigation tree:
$tree = [
[
'name' => 'First Nav Item',
'href' => '/first-page',
'children' => [
[
'name' => 'First Child',
'href' => 'first-child'
],
[
'name' => 'Second Child',
'href' => 'second-child'
]
]
],
[
'name' => 'Second Nav Item',
'href' => '/second-page'
]
];
Then, you have a significant amount of control over the branch nodes and attributes via a configuration array:
$config = [
'top' => [
'node' => 'nav',
'id' => 'main-nav'
],
'parent' => [
'node' => 'nav',
'id' => 'nav',
'class' => 'level'
],
'child' => [
'node' => 'nav',
'id' => 'menu',
'class' => 'item'
],
'on' => 'link-on',
'off' => 'link-off',
'indent' => ' '
];
You can then create and render your nav object:
use Pop\Nav\Nav;
$nav = new Nav($tree, $config);
echo $nav;
<nav id="main-nav">
<nav id="menu-1" class="item-1">
<a href="/first-page" class="link-off">First Nav Item</a>
<nav id="nav-2" class="level-2">
<nav id="menu-2" class="item-2">
<a href="/first-page/first-child" class="link-off">First Child</a>
</nav>
<nav id="menu-3" class="item-2">
<a href="/first-page/second-child" class="link-off">Second Child</a>
</nav>
</nav>
</nav>
<nav id="menu-4" class="item-1">
<a href="/second-page" class="link-off">Second Nav Item</a>
</nav>
</nav>
An advanced example using the ACL
First, let's set up the ACL object with some roles and resources:
use Pop\Acl\Acl;
use Pop\Acl\AclRole as Role;
use Pop\Acl\AclResource as Resource;
$acl = new Acl();
$admin = new Role('admin');
$editor = new Role('editor');
$acl->addRoles([$admin, $editor]);
$acl->addResource(new Resource('second-child'));
$acl->allow('admin');
$acl->deny('editor', 'second-child');
And then we add the ACL rules to the navigation tree:
$tree = [
[
'name' => 'First Nav Item',
'href' => '/first-page',
'children' => [
[
'name' => 'First Child',
'href' => 'first-child'
],
[
'name' => 'Second Child',
'href' => 'second-child',
'acl' => [
'resource' => 'second-child'
]
]
]
],
[
'name' => 'Second Nav Item',
'href' => '/second-page'
]
];
We then inject the ACL object into the navigation object, set the current role and render the navigation:
$nav = new Nav($tree, $config);
$nav->setAcl($acl);
$nav->setRole($editor);
echo $nav;
<nav id="main-nav">
<nav id="menu-1" class="item-1">
<a href="/first-page" class="link-off">First Nav Item</a>
<nav id="nav-2" class="level-2">
<nav id="menu-2" class="item-2">
<a href="/first-page/first-child" class="link-off">First Child</a>
</nav>
</nav>
</nav>
<nav id="menu-3" class="item-1">
<a href="/second-page" class="link-off">Second Nav Item</a>
</nav>
</nav>
Because the 'editor' role is denied access to the 'second-child' page, that nav branch is not rendered.