mirror of
https://github.com/smarty-php/smarty.git
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113 lines
3.0 KiB
PHP
113 lines
3.0 KiB
PHP
<?php
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/**
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* Inheritance Runtime Methods processBlock, endChild, init
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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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**/
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class Smarty_Internal_Runtime_Inheritance
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{
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/**
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* State machine
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* - 0 idle next extends will create a new inheritance tree
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* - 1 processing child template
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* - 2 wait for next inheritance template
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* - 3 assume parent template, if child will loaded goto state 1
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* a call to a sub template resets the state to 0
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*
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* @var int
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*/
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public $state = 0;
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/**
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* Array of root child {block} objects
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*
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* @var Smarty_Internal_Block[]
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*/
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public $childRoot = array();
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/**
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* inheritance template nesting level
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*
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* @var int
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*/
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public $inheritanceLevel = 0;
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/**
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* inheritance template index
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*
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* @var int
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*/
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public $tplIndex = - 1;
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/**
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* current block nesting level
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*
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* @var int
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*/
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public $blockNesting = 0;
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/**
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* Array of source template names
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* - key template index
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*
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* @var string[]
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*/
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public $templateResource = array();
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/**
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* Initialize inheritance
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*
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* @param \Smarty_Internal_Template $tpl template object of caller
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* @param bool $initChild if true init for child template
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* @param array $blockNames outer level block name
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*
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*/
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public function init(Smarty_Internal_Template $tpl, $initChild, $blockNames = array())
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{
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// if called while executing parent template it must be a sub-template with new inheritance root
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if ($initChild && $this->state == 3 && (strpos($tpl->template_resource, 'extendsall') === false)) {
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$tpl->ext->_inheritance = new Smarty_Internal_Runtime_Inheritance();
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$tpl->ext->_inheritance->init($tpl, $initChild, $blockNames);
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return;
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}
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// start of child sub template(s)
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if ($initChild) {
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$this->state = 1;
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if (!$this->inheritanceLevel) {
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//grab any output of child templates
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ob_start();
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}
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$this->inheritanceLevel ++;
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}
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// in parent state {include} will not increment template index
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if ($this->state != 3) {
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$this->tplIndex ++;
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$this->templateResource[ $this->tplIndex ] = $tpl->template_resource;
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}
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// if state was waiting for parent change state to parent
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if ($this->state == 2) {
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$this->state = 3;
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}
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}
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/**
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* End of child template(s)
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* - if outer level is reached flush output buffer and switch to wait for parent template state
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*
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* @param \Smarty_Internal_Template $tpl template object of caller
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*/
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public function endChild(Smarty_Internal_Template $tpl)
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{
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$this->inheritanceLevel --;
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if (!$this->inheritanceLevel) {
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ob_end_clean();
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$this->state = 2;
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}
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}
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}
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