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Revision Autor Zeilennr. Zeile
148 lars 1 
<?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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}