v1.0.0 initial release

vendor/illuminate/view/Concerns/ManagesFragments.php

@@ -0,0 +1,88 @@
+<?php
+
+namespace Illuminate\View\Concerns;
+
+use InvalidArgumentException;
+
+trait ManagesFragments
+{
+    /**
+     * All of the captured, rendered fragments.
+     *
+     * @var array
+     */
+    protected $fragments = [];
+
+    /**
+     * The stack of in-progress fragment renders.
+     *
+     * @var array
+     */
+    protected $fragmentStack = [];
+
+    /**
+     * Start injecting content into a fragment.
+     *
+     * @param  string  $fragment
+     * @return void
+     */
+    public function startFragment($fragment)
+    {
+        if (ob_start()) {
+            $this->fragmentStack[] = $fragment;
+        }
+    }
+
+    /**
+     * Stop injecting content into a fragment.
+     *
+     * @return string
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function stopFragment()
+    {
+        if (empty($this->fragmentStack)) {
+            throw new InvalidArgumentException('Cannot end a fragment without first starting one.');
+        }
+
+        $last = array_pop($this->fragmentStack);
+
+        $this->fragments[$last] = ob_get_clean();
+
+        return $this->fragments[$last];
+    }
+
+    /**
+     * Get the contents of a fragment.
+     *
+     * @param  string  $name
+     * @param  string|null  $default
+     * @return mixed
+     */
+    public function getFragment($name, $default = null)
+    {
+        return $this->getFragments()[$name] ?? $default;
+    }
+
+    /**
+     * Get the entire array of rendered fragments.
+     *
+     * @return array
+     */
+    public function getFragments()
+    {
+        return $this->fragments;
+    }
+
+    /**
+     * Flush all of the fragments.
+     *
+     * @return void
+     */
+    public function flushFragments()
+    {
+        $this->fragments = [];
+        $this->fragmentStack = [];
+    }
+}