public function testApplyCallback()
{
$initialized = [];
$callback = function (Node $node) use(&$initialized) {
$initialized[] = $node;
};
Utils::applyCallback($callback, $this->root);
// no duplicate calls, 1 call per node
self::assertTrue(count($initialized) === 3);
self::assertTrue(in_array($this->root, $initialized, true));
self::assertTrue(in_array($this->attCh, $initialized, true));
self::assertTrue(in_array($this->attChL2, $initialized, true));
self::assertFalse(in_array($this->ch, $initialized, true));
// Check init of nodes added later
$this->attChL2->addChild($this->ch);
self::assertTrue(count($initialized) === 6);
// change tree structure
$this->attChL2->detach();
$this->attChL2->attachTo($this->root);
// changing tree structure must not provoke duplicate init
self::assertTrue(count($initialized) === 6);
// assert that init works for already initialized nodes that was detached & attached again
$this->ch->detach();
$newNode = new Node($this->chL2);
$this->ch->attachTo($this->attChL2);
self::assertTrue(count($initialized) === 7);
self::assertTrue(in_array($newNode, $initialized, true));
$newNode->detach();
// 6 new nodes instead of 7 must be added
$callback2 = function (Node $node) use(&$initialized) {
$initialized[] = $node;
};
Utils::applyCallback($callback2, $this->root);
self::assertTrue(count($initialized) === 13);
}
/**
* @param Compound $root
* @param bool $prepend
*/
public function attachToCompound(Compound $root, $prepend = false)
{
parent::attachToCompound($root, $prepend);
// try to update pagination immediately
// because it can be rendered before this component.
$this->paginationControl || Utils::applyCallback(function (PaginationControl $pagination) {
$this->paginationControl || $this->setPaginationControl($pagination);
}, $root, PaginationControl::class);
}
