1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
<?php
/**
* Inheritance Runtime Methods processBlock, endChild, init
*
* @package Smarty
* @subpackage PluginsInternal
* @author Uwe Tews
*
**/
class Smarty_Internal_Runtime_Inheritance
{
/**
* State machine
* - 0 idle next extends will create a new inheritance tree
* - 1 processing child template
* - 2 wait for next inheritance template
* - 3 assume parent template, if child will loaded goto state 1
* a call to a sub template resets the state to 0
*
* @var int
*/
public $state = 0;
/**
* Array of root child {block} objects
*
* @var Smarty_Internal_Block[]
*/
public $childRoot = array();
/**
* inheritance template nesting level
*
* @var int
*/
public $inheritanceLevel = 0;
/**
* inheritance template index
*
* @var int
*/
public $tplIndex = - 1;
/**
* Array of template source objects
* - key template index
*
* @var Smarty_Template_Source[]
*/
public $sources = array();
/**
* Stack of source objects while executing block code
*
* @var Smarty_Template_Source[]
*/
public $sourceStack = array();
/**
* Initialize inheritance
*
* @param \Smarty_Internal_Template $tpl template object of caller
* @param bool $initChild if true init for child template
* @param array $blockNames outer level block name
*
*/
public function init(Smarty_Internal_Template $tpl, $initChild, $blockNames = array())
{
// if called while executing parent template it must be a sub-template with new inheritance root
if ($initChild && $this->state == 3 && (strpos($tpl->template_resource, 'extendsall') === false)) {
$tpl->inheritance = new Smarty_Internal_Runtime_Inheritance();
$tpl->inheritance->init($tpl, $initChild, $blockNames);
return;
}
$this->tplIndex ++;
$this->sources[ $this->tplIndex ] = $tpl->source;
// start of child sub template(s)
if ($initChild) {
$this->state = 1;
if (!$this->inheritanceLevel) {
//grab any output of child templates
ob_start();
}
$this->inheritanceLevel ++;
// $tpl->startRenderCallbacks[ 'inheritance' ] = array($this, 'subTemplateStart');
// $tpl->endRenderCallbacks[ 'inheritance' ] = array($this, 'subTemplateEnd');
}
// if state was waiting for parent change state to parent
if ($this->state == 2) {
$this->state = 3;
}
}
/**
* End of child template(s)
* - if outer level is reached flush output buffer and switch to wait for parent template state
*
* @param \Smarty_Internal_Template $tpl
* @param null|string $template optinal name of inheritance parent template
* @param null|string $uid uid of inline template
* @param null|string $func function call name of inline template
*/
public function endChild(Smarty_Internal_Template $tpl, $template = null, $uid = null, $func = null)
{
$this->inheritanceLevel --;
if (!$this->inheritanceLevel) {
ob_end_clean();
$this->state = 2;
}
if (isset($template) && (($tpl->parent->_isTplObj() && $tpl->parent->source->type !== 'extends') || $tpl->smarty->extends_recursion)) {
$tpl->_subTemplateRender($template, $tpl->cache_id, $tpl->compile_id, $tpl->caching ? 9999 : 0,
$tpl->cache_lifetime, array(), 2, false, $uid, $func);
}
}
/**
* Smarty_Internal_Block constructor.
* - if outer level {block} of child template ($state == 1) save it as child root block
* - otherwise process inheritance and render
*
* @param \Smarty_Internal_Template $tpl
* @param $className
* @param string $name
* @param int|null $tplIndex index of outer level {block} if nested
*/
public function instanceBlock(Smarty_Internal_Template $tpl, $className, $name, $tplIndex = null)
{
$block = new $className($name, isset($tplIndex) ? $tplIndex : $this->tplIndex);
if (isset($this->childRoot[ $name ])) {
$block->child = $this->childRoot[ $name ];
}
if ($this->state == 1) {
$this->childRoot[ $name ] = $block;
return;
}
// make sure we got child block of child template of current block
while ($block->child && $block->tplIndex <= $block->child->tplIndex) {
$block->child = $block->child->child;
}
$this->process($tpl, $block);
}
/**
* Goto child block or render this
*
* @param \Smarty_Internal_Template $tpl
* @param \Smarty_Internal_Block $block
* @param \Smarty_Internal_Block|null $parent
*
* @throws \SmartyException
*/
public function process(Smarty_Internal_Template $tpl, Smarty_Internal_Block $block,
Smarty_Internal_Block $parent = null)
{
if ($block->hide && !isset($block->child)) {
return;
}
if (isset($block->child) && $block->child->hide && !isset($block->child->child)) {
$block->child = null;
}
$block->parent = $parent;
if ($block->append && !$block->prepend && isset($parent)) {
$this->callParent($tpl, $block);
}
if ($block->callsChild || !isset($block->child) || ($block->child->hide && !isset($block->child->child))) {
$this->callBlock($block, $tpl);
} else {
$this->process($tpl, $block->child, $block);
}
if ($block->prepend && isset($parent)) {
$this->callParent($tpl, $block);
if ($block->append) {
if ($block->callsChild || !isset($block->child) ||
($block->child->hide && !isset($block->child->child))
) {
$this->callBlock($block, $tpl);
} else {
$this->process($tpl, $block->child, $block);
}
}
}
$block->parent = null;
}
/**
* Render child on {$smarty.block.child}
*
* @param \Smarty_Internal_Template $tpl
* @param \Smarty_Internal_Block $block
*/
public function callChild(Smarty_Internal_Template $tpl, Smarty_Internal_Block $block)
{
if (isset($block->child)) {
$this->process($tpl, $block->child, $block);
}
}
/**
* Render parent on {$smarty.block.parent} or {block append/prepend} *
*
* @param \Smarty_Internal_Template $tpl
* @param \Smarty_Internal_Block $block
*
* @param null $name
*
* @throws \SmartyException
*/
public function callParent(Smarty_Internal_Template $tpl, Smarty_Internal_Block $block, $name = null)
{
if (isset($name)) {
$block = $block->parent;
while (isset($block)) {
if (isset($block->subBlocks[ $name ])) {
} else {
$block = $block->parent;
}
}
return;
} else if (isset($block->parent)) {
$this->callBlock($block->parent, $tpl);
} else {
throw new SmartyException("inheritance: illegal {\$smarty.block.parent} or {block append/prepend} used in parent template '{$tpl->inheritance->sources[$block->tplIndex]->filepath}' block '{$block->name}'");
}
}
/**
* @param \Smarty_Internal_Block $block
* @param \Smarty_Internal_Template $tpl
*/
public function callBlock(Smarty_Internal_Block $block, Smarty_Internal_Template $tpl)
{
$this->sourceStack[] = $tpl->source;
$tpl->source = $this->sources[ $block->tplIndex ];
$block->callBlock($tpl);
$tpl->source = array_pop($this->sourceStack);
}
}
|
