|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Nayjest\Tree; |
|
4
|
|
|
|
|
5
|
|
|
use Nayjest\Tree\Utils\TreeBuilder; |
|
6
|
|
|
|
|
7
|
|
|
class Utils |
|
8
|
|
|
{ |
|
9
|
|
|
private static $treeBuilder; |
|
10
|
|
|
|
|
11
|
|
|
/** |
|
12
|
|
|
* @return TreeBuilder |
|
13
|
|
|
*/ |
|
14
|
|
|
public static function getDefaultTreeBuilder() |
|
15
|
|
|
{ |
|
16
|
|
|
if (!self::$treeBuilder) { |
|
17
|
|
|
self::$treeBuilder = new TreeBuilder(); |
|
18
|
|
|
} |
|
19
|
|
|
|
|
20
|
|
|
return self::$treeBuilder; |
|
21
|
|
|
} |
|
22
|
|
|
|
|
23
|
|
|
/** |
|
24
|
|
|
* Builds tree from plain nodes based on configuration. |
|
25
|
|
|
* |
|
26
|
|
|
* @param array $config multidimensional array that represents tree structure |
|
27
|
|
|
* @param NodeInterface[] $plainItems nodes that must be organized to tree |
|
28
|
|
|
* @param int $flags specifies tree building options, default: TreeBuilder::NORMALIZE_CONFIG; see TreeBuilder constants |
|
29
|
|
|
* |
|
30
|
|
|
* @return NodeInterface[] items organized to tree structure; array keys are not preserved |
|
31
|
|
|
*/ |
|
32
|
|
|
public static function buildTree(array $config, array $plainItems, $flags = TreeBuilder::NORMALIZE_CONFIG) |
|
33
|
|
|
{ |
|
34
|
|
|
return self::getDefaultTreeBuilder()->build($config, $plainItems, $flags); |
|
35
|
|
|
} |
|
36
|
|
|
|
|
37
|
|
|
/** |
|
38
|
|
|
* Applies callback to root node, if it's existing and further descendant nodes directly after adding to tree. |
|
39
|
|
|
* |
|
40
|
|
|
* @param callable $callback function to apply |
|
41
|
|
|
* @param NodeInterface $root root node |
|
42
|
|
|
* @param string $targetClass callback will be applied only to nodes that are instances of $targetClass or inherited classes |
|
43
|
|
|
*/ |
|
44
|
|
|
public static function applyCallback(callable $callback, NodeInterface $root, $targetClass = ChildNodeInterface::class) |
|
45
|
|
|
{ |
|
46
|
|
|
$processed = []; |
|
47
|
|
|
$f = function (ChildNodeInterface $targetNode) use ($callback, $targetClass, &$f, &$processed) { |
|
48
|
|
|
if (in_array($targetNode, $processed, true)) { |
|
49
|
|
|
return; |
|
50
|
|
|
} |
|
51
|
|
|
$nodes = $targetNode instanceof ParentNodeInterface |
|
52
|
|
|
? $targetNode->getChildrenRecursive()->toArray() |
|
53
|
|
|
: []; |
|
54
|
|
|
$nodes[] = $targetNode; |
|
55
|
|
|
|
|
56
|
|
|
/** @var NodeInterface $node */ |
|
57
|
|
|
foreach ($nodes as $node) { |
|
58
|
|
|
$node instanceof $targetClass && call_user_func($callback, $node); |
|
59
|
|
|
$node instanceof ParentNodeInterface && $node->children()->onItemAdd($f); |
|
60
|
|
|
$processed[] = $node; |
|
61
|
|
|
} |
|
62
|
|
|
}; |
|
63
|
|
|
$f($root); |
|
64
|
|
|
} |
|
65
|
|
|
} |
|
66
|
|
|
|
Nayjest /
Tree
