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<?php |
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/* |
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* This file is part of the Twig Bufferized Template package, an RunOpenCode project. |
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* |
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* (c) 2017 RunOpenCode |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace RunOpenCode\Twig\BufferizedTemplate\Buffer; |
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/** |
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* Class BufferManager |
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* |
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* Buffer manager holds references to Twig template chunks, as well as their execution and rendering order. |
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* |
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* @package RunOpenCode\Twig\BufferizedTemplate\Buffer |
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*/ |
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final class BufferManager |
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{ |
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/** |
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* @var BufferQueue |
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*/ |
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private $executionQueue; |
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/** |
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* @var array |
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*/ |
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private $renderingQueue; |
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/** |
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* @var string |
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*/ |
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private $output; |
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public function __construct() |
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{ |
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$this->executionQueue = new BufferQueue(); |
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$this->renderingQueue = []; |
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} |
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/** |
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* Add closure to buffer execution queue. |
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* |
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* @param callable $callable |
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* @param int $priority |
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*/ |
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public function bufferize(callable $callable, $priority = 0) |
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{ |
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$templateBuffer = new TemplateBuffer($callable, $priority); |
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$this->executionQueue->enqueue($templateBuffer); |
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$this->renderingQueue[] = $templateBuffer; |
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} |
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/** |
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* Get output. |
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* |
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* @return string |
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*/ |
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public function render() |
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{ |
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return $this->getOutput(); |
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} |
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/** |
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* Display output. |
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* |
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* @return string |
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*/ |
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public function display() |
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{ |
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echo $this->getOutput(); |
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} |
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/** |
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* Execute buffered templates and get output. |
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* |
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* @return string |
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*/ |
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private function getOutput() |
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{ |
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if (null === $this->output) { |
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$this->output = ''; |
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/** |
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* @var TemplateBuffer $templateBuffer |
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*/ |
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foreach ($this->executionQueue as $templateBuffer) { |
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$templateBuffer->execute(); |
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} |
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foreach ($this->renderingQueue as $templateBuffer) { |
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$this->output .= $templateBuffer->getOutput(); |
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} |
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} |
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return $this->output; |
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} |
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} |
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RunOpenCode /
twig-bufferized-template
