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authoremkael <emkael@tlen.pl>2016-12-27 14:47:01 +0100
committeremkael <emkael@tlen.pl>2016-12-27 14:47:01 +0100
commit7085a0c2f7104a56a7e946c43ba0b5736be5f4e7 (patch)
tree5518c72e3486f41c559be30e514be1917bf5724f /lib/smarty3/sysplugins/smarty_internal_runtime_inheritance.php
parent1a3d783d8957a6adbe49b1765b326805477e7856 (diff)
* smarty bundled
Diffstat (limited to 'lib/smarty3/sysplugins/smarty_internal_runtime_inheritance.php')
-rw-r--r--lib/smarty3/sysplugins/smarty_internal_runtime_inheritance.php222
1 files changed, 222 insertions, 0 deletions
diff --git a/lib/smarty3/sysplugins/smarty_internal_runtime_inheritance.php b/lib/smarty3/sysplugins/smarty_internal_runtime_inheritance.php
new file mode 100644
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+++ b/lib/smarty3/sysplugins/smarty_internal_runtime_inheritance.php
@@ -0,0 +1,222 @@
+<?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
+ *
+ */
+ public function endChild()
+ {
+ $this->inheritanceLevel --;
+ if (!$this->inheritanceLevel) {
+ ob_end_clean();
+ $this->state = 2;
+ }
+ }
+
+ /**
+ * Smarty_Internal_Block constructor.
+ * - if outer level {block} of child template ($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, $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
+ *
+ * @throws \SmartyException
+ */
+ public function callParent(Smarty_Internal_Template $tpl, Smarty_Internal_Block $block)
+ {
+ if (isset($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);
+ }
+}