175 lines
4.1 KiB
PHP
175 lines
4.1 KiB
PHP
<?php
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/**
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* Runtime Extension Capture
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*
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* @package Smarty
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* @subpackage PluginsInternal
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* @author Uwe Tews
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*/
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class Smarty_Internal_Runtime_Capture
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{
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/**
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* Flag that this instance will not be cached
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*
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* @var bool
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*/
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public $isPrivateExtension = true;
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/**
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* Stack of capture parameter
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*
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* @var array
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*/
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private $captureStack = array();
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/**
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* Current open capture sections
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*
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* @var int
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*/
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private $captureCount = 0;
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/**
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* Count stack
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*
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* @var int[]
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*/
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private $countStack = array();
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/**
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* Named buffer
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*
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* @var string[]
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*/
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private $namedBuffer = array();
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/**
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* Flag if callbacks are registered
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*
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* @var bool
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*/
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private $isRegistered = false;
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/**
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* Open capture section
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*
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* @param \Smarty_Internal_Template $_template
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* @param string $buffer capture name
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* @param string $assign variable name
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* @param string $append variable name
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*/
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public function open(Smarty_Internal_Template $_template, $buffer, $assign, $append)
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{
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if (!$this->isRegistered) {
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$this->register($_template);
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}
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$this->captureStack[] = array(
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$buffer,
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$assign,
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$append
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);
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$this->captureCount++;
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ob_start();
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}
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/**
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* Register callbacks in template class
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*
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* @param \Smarty_Internal_Template $_template
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*/
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private function register(Smarty_Internal_Template $_template)
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{
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$_template->startRenderCallbacks[] = array(
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$this,
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'startRender'
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);
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$_template->endRenderCallbacks[] = array(
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$this,
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'endRender'
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);
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$this->startRender($_template);
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$this->isRegistered = true;
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}
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/**
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* Start render callback
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*
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* @param \Smarty_Internal_Template $_template
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*/
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public function startRender(Smarty_Internal_Template $_template)
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{
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$this->countStack[] = $this->captureCount;
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$this->captureCount = 0;
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}
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/**
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* Close capture section
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*
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* @param \Smarty_Internal_Template $_template
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*
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* @throws \SmartyException
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*/
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public function close(Smarty_Internal_Template $_template)
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{
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if ($this->captureCount) {
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list($buffer, $assign, $append) = array_pop($this->captureStack);
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$this->captureCount--;
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if (isset($assign)) {
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$_template->assign($assign, ob_get_contents());
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}
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if (isset($append)) {
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$_template->append($append, ob_get_contents());
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}
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$this->namedBuffer[ $buffer ] = ob_get_clean();
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} else {
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$this->error($_template);
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}
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}
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/**
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* Error exception on not matching {capture}{/capture}
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*
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* @param \Smarty_Internal_Template $_template
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*
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* @throws \SmartyException
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*/
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public function error(Smarty_Internal_Template $_template)
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{
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throw new SmartyException("Not matching {capture}{/capture} in '{$_template->template_resource}'");
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}
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/**
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* Return content of named capture buffer by key or as array
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*
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* @param \Smarty_Internal_Template $_template
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* @param string|null $name
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*
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* @return string|string[]|null
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*/
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public function getBuffer(Smarty_Internal_Template $_template, $name = null)
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{
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if (isset($name)) {
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return isset($this->namedBuffer[ $name ]) ? $this->namedBuffer[ $name ] : null;
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} else {
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return $this->namedBuffer;
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}
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}
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/**
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* End render callback
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*
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* @param \Smarty_Internal_Template $_template
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*
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* @throws \SmartyException
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*/
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public function endRender(Smarty_Internal_Template $_template)
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{
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if ($this->captureCount) {
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$this->error($_template);
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} else {
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$this->captureCount = array_pop($this->countStack);
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}
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}
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}
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