- compile {block} tag code and its processing into classes

2026-05-05 04:04:10 +02:00 · 2015-12-25 09:10:39 +01:00
parent 2ebacc3b54
commit fdd20dd4f1
6 changed files with 205 additions and 209 deletions
@@ -0,0 +1,155 @@
+<?php
+
+/**
+ * Smarty {block} tag class
+ *
+ * @package    Smarty
+ * @subpackage PluginsInternal
+ * @author     Uwe Tews
+ */
+class Smarty_Internal_Block
+{
+    /**
+     * Block name
+     *
+     * @var string
+     */
+    public $name = '';
+
+    /**
+     * Hide attribute
+     *
+     * @var bool
+     */
+    public $hide = false;
+
+    /**
+     * Append attribute
+     *
+     * @var bool
+     */
+    public $append = false;
+
+    /**
+     * prepend attribute
+     *
+     * @var bool
+     */
+    public $prepend = false;
+
+    /**
+     * Block calls {$smarty.block.child}
+     *
+     * @var bool
+     */
+    public $callsChild = false;
+
+    /**
+     * Inheritance child block
+     *
+     * @var Smarty_Internal_Block|null
+     */
+    public $child = null;
+
+    /**
+     * Inheritance calling parent block
+     *
+     * @var Smarty_Internal_Block|null
+     */
+    public $parent = null;
+
+    /**
+     * Inheritance Template index
+     *
+     * @var int
+     */
+    public $tplIndex = 0;
+
+    /**
+     * Smarty_Internal_Block constructor.
+     *
+     * @param \Smarty_Internal_Template $_smarty_tpl
+     *
+     */
+    public function __construct(Smarty_Internal_Template $_smarty_tpl)
+    {
+        $this->tplIndex = $_smarty_tpl->ext->_inheritance->tplIndex;
+        if (isset($_smarty_tpl->ext->_inheritance->blockParameter[ $this->name ])) {
+            $this->child = $_smarty_tpl->ext->_inheritance->blockParameter[ $this->name ];
+        }
+        if ($_smarty_tpl->ext->_inheritance->state == 1) {
+            $_smarty_tpl->ext->_inheritance->blockParameter[ $this->name ] = $this;
+            return;
+        }
+        $this->process($_smarty_tpl);
+    }
+
+    /**
+     * Goto child block or render this
+     *
+     * @param \Smarty_Internal_Template   $_smarty_tpl
+     * @param \Smarty_Internal_Block|null $parent
+     */
+    public function process(Smarty_Internal_Template $_smarty_tpl, Smarty_Internal_Block $parent = null) {
+        if ($this->hide && !isset($this->child)) {
+             return;
+        }
+        if (isset($this->child) && $this->child->hide && !isset($this->child->child)) {
+            $this->child = null;
+        }
+        $this->parent = $parent;
+        if ($this->append && !$this->prepend && isset($parent)) {
+            $this->callParent($_smarty_tpl);
+        }
+        if ($this->callsChild || !isset($this->child) || ($this->child->hide && !isset($this->child->child))) {
+            $this->callBlock($_smarty_tpl);
+        } else {
+            $this->child->process($_smarty_tpl, $this);
+        }
+        if ($this->prepend && isset($parent)) {
+            $this->callParent($_smarty_tpl);
+            if ($this->append) {
+                if ($this->callsChild || !isset($this->child) || ($this->child->hide && !isset($this->child->child))) {
+                    $this->callBlock($_smarty_tpl);
+                } else {
+                    $this->child->process($_smarty_tpl, $this);
+                }
+           }
+        }
+        $this->parent = null;
+    }
+
+    /**
+     * Compiled block code overloaded by {block} class
+     *
+     * @param \Smarty_Internal_Template   $_smarty_tpl
+     */
+    public function callBlock(Smarty_Internal_Template $_smarty_tpl) {
+    }
+
+    /**
+     * Render child on {$smarty.block.child}
+     *
+     * @param \Smarty_Internal_Template $_smarty_tpl
+     */
+    public function callChild (Smarty_Internal_Template $_smarty_tpl) {
+        if (isset($this->child)) {
+            $this->child->process($_smarty_tpl, $this);
+        }
+    }
+
+    /**
+     * Render parent on {$smarty.block.parent} or {block append/prepend}     *
+     *
+     * @param \Smarty_Internal_Template   $_smarty_tpl
+     *
+     * @throws \SmartyException
+     */
+    public function callParent (Smarty_Internal_Template $_smarty_tpl) {
+        if (isset($this->parent)) {
+            $this->parent->callBlock($_smarty_tpl, $this->parent->parent);
+        } else {
+            throw new SmartyException("inheritance: illegal {\$smarty.block.parent} or {block append/prepend} used in parent template '{$_smarty_tpl->ext->_inheritance->compiledFilePath[$this->tplIndex]}' block '{$this->name}'");
+        }
+    }
+}