1<?php
2/**
3 * Smarty Internal Plugin Compile Block Plugin
4 * Compiles code for the execution of block plugin
5 *
6 * @package    Smarty
7 * @subpackage Compiler
8 * @author     Uwe Tews
9 */
10
11/**
12 * Smarty Internal Plugin Compile Block Plugin Class
13 *
14 * @package    Smarty
15 * @subpackage Compiler
16 */
17class Smarty_Internal_Compile_Private_Block_Plugin extends Smarty_Internal_CompileBase
18{
19    /**
20     * Attribute definition: Overwrites base class.
21     *
22     * @var array
23     * @see Smarty_Internal_CompileBase
24     */
25    public $optional_attributes = array('_any');
26
27    /**
28     * nesting level
29     *
30     * @var int
31     */
32    public $nesting = 0;
33
34    /**
35     * Compiles code for the execution of block plugin
36     *
37     * @param array                                 $args      array with attributes from parser
38     * @param \Smarty_Internal_TemplateCompilerBase $compiler  compiler object
39     * @param array                                 $parameter array with compilation parameter
40     * @param string                                $tag       name of block plugin
41     * @param string                                $function  PHP function name
42     *
43     * @return string compiled code
44     * @throws \SmartyCompilerException
45     * @throws \SmartyException
46     */
47    public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler, $parameter, $tag, $function = null)
48    {
49        if (!isset($tag[ 5 ]) || substr($tag, -5) !== 'close') {
50            // opening tag of block plugin
51            // check and get attributes
52            $_attr = $this->getAttributes($compiler, $args);
53            $this->nesting++;
54            unset($_attr[ 'nocache' ]);
55            list($callback, $_paramsArray, $callable) = $this->setup($compiler, $_attr, $tag, $function);
56            $_params = 'array(' . implode(',', $_paramsArray) . ')';
57            // compile code
58            $output = "<?php ";
59            if (is_array($callback)) {
60                $output .= "\$_block_plugin{$this->nesting} = isset({$callback[0]}) ? {$callback[0]} : null;\n";
61                $callback = "\$_block_plugin{$this->nesting}{$callback[1]}";
62            }
63            if (isset($callable)) {
64                $output .= "if (!is_callable({$callable})) {\nthrow new SmartyException('block tag \'{$tag}\' not callable or registered');\n}\n";
65            }
66            $output .= "\$_smarty_tpl->smarty->_cache['_tag_stack'][] = array('{$tag}', {$_params});\n";
67            $output .= "\$_block_repeat=true;\necho {$callback}({$_params}, null, \$_smarty_tpl, \$_block_repeat);\nwhile (\$_block_repeat) {\nob_start();?>";
68            $this->openTag($compiler, $tag, array($_params, $compiler->nocache, $callback));
69            // maybe nocache because of nocache variables or nocache plugin
70            $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
71        } else {
72            // must endblock be nocache?
73            if ($compiler->nocache) {
74                $compiler->tag_nocache = true;
75            }
76            // closing tag of block plugin, restore nocache
77            list($_params, $compiler->nocache, $callback) = $this->closeTag($compiler, substr($tag, 0, -5));
78            // compile code
79            if (!isset($parameter[ 'modifier_list' ])) {
80                $mod_pre = $mod_post = $mod_content = '';
81                $mod_content2 = 'ob_get_clean()';
82            } else {
83                $mod_content2 = "\$_block_content{$this->nesting}";
84                $mod_content = "\$_block_content{$this->nesting} = ob_get_clean();\n";
85                $mod_pre = "ob_start();\n";
86                $mod_post = 'echo ' . $compiler->compileTag(
87                        'private_modifier',
88                        array(),
89                        array(
90                            'modifierlist' => $parameter[ 'modifier_list' ],
91                            'value'        => 'ob_get_clean()'
92                        )
93                    ) . ";\n";
94            }
95            $output =
96                "<?php {$mod_content}\$_block_repeat=false;\n{$mod_pre}echo {$callback}({$_params}, {$mod_content2}, \$_smarty_tpl, \$_block_repeat);\n{$mod_post}}\n";
97            $output .= 'array_pop($_smarty_tpl->smarty->_cache[\'_tag_stack\']);?>';
98        }
99        return $output;
100    }
101
102    /**
103     * Setup callback and parameter array
104     *
105     * @param \Smarty_Internal_TemplateCompilerBase $compiler
106     * @param array                                 $_attr attributes
107     * @param string                                $tag
108     * @param string                                $function
109     *
110     * @return array
111     */
112    public function setup(Smarty_Internal_TemplateCompilerBase $compiler, $_attr, $tag, $function)
113    {
114        $_paramsArray = array();
115        foreach ($_attr as $_key => $_value) {
116            if (is_int($_key)) {
117                $_paramsArray[] = "$_key=>$_value";
118            } else {
119                $_paramsArray[] = "'$_key'=>$_value";
120            }
121        }
122        return array($function, $_paramsArray, null);
123    }
124}
125