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<?php
/**
* Smarty Internal Plugin Compile extend
* Compiles the {extends} tag
*
* @package Smarty
* @subpackage Compiler
* @author Uwe Tews
*/
/**
* Smarty Internal Plugin Compile extend Class
*
* @package Smarty
* @subpackage Compiler
*/
class Smarty_Internal_Compile_Extends extends Smarty_Internal_Compile_Shared_Inheritance
{
/**
* Attribute definition: Overwrites base class.
*
* @var array
* @see Smarty_Internal_CompileBase
*/
public $required_attributes = array('file');
/**
* Array of names of optional attribute required by tag
* use array('_any') if there is no restriction of attributes names
*
* @var array
*/
public $optional_attributes = array('extends_resource');
/**
* Attribute definition: Overwrites base class.
*
* @var array
* @see Smarty_Internal_CompileBase
*/
public $shorttag_order = array('file');
/**
* Compiles code for the {extends} tag extends: resource
*
* @param array $args array with attributes from parser
* @param \Smarty_Internal_TemplateCompilerBase $compiler compiler object
*
* @return string compiled code
* @throws \SmartyCompilerException
* @throws \SmartyException
*/
public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler)
{
// check and get attributes
$_attr = $this->getAttributes($compiler, $args);
if ($_attr['nocache'] === true) {
$compiler->trigger_template_error('nocache option not allowed', $compiler->parser->lex->line - 1);
}
if (strpos($_attr['file'], '$_tmp') !== false) {
$compiler->trigger_template_error('illegal value for file attribute', $compiler->parser->lex->line - 1);
}
// add code to initialize inheritance
$this->registerInit($compiler, true);
$file = trim($_attr['file'], '\'"');
if (strlen($file) > 8 && substr($file, 0, 8) == 'extends:') {
// generate code for each template
$files = array_reverse(explode('|', substr($file, 8)));
$i = 0;
foreach ($files as $file) {
if ($file[0] == '"') {
$file = trim($file, '".');
} else {
$file = "'{$file}'";
}
$i ++;
if ($i == count($files) && isset($_attr['extends_resource'])) {
$this->compileEndChild($compiler);
}
$this->compileInclude($compiler, $file);
}
if (!isset($_attr['extends_resource'])) {
$this->compileEndChild($compiler);
}
} else {
$this->compileEndChild($compiler);
$this->compileInclude($compiler, $_attr['file']);
}
$compiler->has_code = false;
return '';
}
/**
* Add code for inheritance endChild() method to end of template
*
* @param \Smarty_Internal_TemplateCompilerBase $compiler
*/
private function compileEndChild(Smarty_Internal_TemplateCompilerBase $compiler)
{
$compiler->parser->template_postfix[] = new Smarty_Internal_ParseTree_Tag($compiler->parser,
"<?php \$_smarty_tpl->ext->_inheritance->endChild(\$_smarty_tpl);\n?>\n");
}
/**
* Add code for including subtemplate to end of template
*
* @param \Smarty_Internal_TemplateCompilerBase $compiler
* @param string $file subtemplate name
*/
private function compileInclude(Smarty_Internal_TemplateCompilerBase $compiler, $file)
{
$compiler->parser->template_postfix[] = new Smarty_Internal_ParseTree_Tag($compiler->parser,
$compiler->compileTag('include',
array($file,
array('scope' => 'parent'))));
}
/**
* Create source code for {extends} from source components array
*
* @param []\Smarty_Internal_Template_Source $components
*
* @return string
*/
public static function extendsSourceArrayCode($components)
{
$resources = array();
foreach ($components as $source) {
$resources[] = $source->resource;
}
return '{extends file=\'extends:' . join('|', $resources) . '\' extends_resource=true}';
}
}
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