89 lines
1.7 KiB
PHP
89 lines
1.7 KiB
PHP
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<?php
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namespace Illuminate\View\Concerns;
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use InvalidArgumentException;
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trait ManagesFragments
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{
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/**
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* All of the captured, rendered fragments.
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*
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* @var array
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*/
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protected $fragments = [];
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/**
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* The stack of in-progress fragment renders.
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*
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* @var array
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*/
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protected $fragmentStack = [];
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/**
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* Start injecting content into a fragment.
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*
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* @param string $fragment
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* @return void
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*/
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public function startFragment($fragment)
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{
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if (ob_start()) {
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$this->fragmentStack[] = $fragment;
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}
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}
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/**
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* Stop injecting content into a fragment.
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*
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* @return string
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*
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* @throws \InvalidArgumentException
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*/
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public function stopFragment()
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{
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if (empty($this->fragmentStack)) {
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throw new InvalidArgumentException('Cannot end a fragment without first starting one.');
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}
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$last = array_pop($this->fragmentStack);
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$this->fragments[$last] = ob_get_clean();
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return $this->fragments[$last];
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}
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/**
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* Get the contents of a fragment.
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*
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* @param string $name
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* @param string|null $default
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* @return mixed
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*/
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public function getFragment($name, $default = null)
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{
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return $this->getFragments()[$name] ?? $default;
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}
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/**
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* Get the entire array of rendered fragments.
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*
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* @return array
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*/
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public function getFragments()
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{
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return $this->fragments;
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}
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/**
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* Flush all of the fragments.
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*
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* @return void
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*/
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public function flushFragments()
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{
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$this->fragments = [];
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$this->fragmentStack = [];
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}
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}
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